National Instruments Digital Camera NI 17xx User Manual

NI Vision  
NI 17xx Smart Camera User Manual  
NI 17xx Smart Camera User Manual  
June 2008  
372429B-01  
 
 
Important Information  
Warranty  
NI 17xx Smart Cameras are warranted against defects in materials and workmanship for a period of one year from the date of shipment, as  
evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace equipment that proves to be defective  
during the warranty period. This warranty includes parts and labor.  
The media on which you receive National Instruments software are warranted not to fail to execute programming instructions, due to defects in  
materials and workmanship, for a period of 90 days from date of shipment, as evidenced by receipts or other documentation. National Instruments  
will, at its option, repair or replace software media that do not execute programming instructions if National Instruments receives notice of such defects  
during the warranty period. National Instruments does not warrant that the operation of the software shall be uninterrupted or error free.  
A Return Material Authorization (RMA) number must be obtained from the factory and clearly marked on the outside of the package before any  
equipment will be accepted for warranty work. National Instruments will pay the shipping costs of returning to the owner parts which are covered by  
warranty.  
National Instruments believes that the information in this document is accurate. The document has been carefully reviewed for technical accuracy. In  
the event that technical or typographical errors exist, National Instruments reserves the right to make changes to subsequent editions of this document  
without prior notice to holders of this edition. The reader should consult National Instruments if errors are suspected. In no event shall National  
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failures caused by owner’s failure to follow the National Instruments installation, operation, or maintenance instructions; owner’s modification of the  
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Patents  
For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txtfile  
on your media, or ni.com/patents.  
WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS  
(1) NATIONAL INSTRUMENTS PRODUCTS ARE NOT DESIGNED WITH COMPONENTS AND TESTING FOR A LEVEL OF  
RELIABILITY SUITABLE FOR USE IN OR IN CONNECTION WITH SURGICAL IMPLANTS OR AS CRITICAL COMPONENTS IN  
ANY LIFE SUPPORT SYSTEMS WHOSE FAILURE TO PERFORM CAN REASONABLY BE EXPECTED TO CAUSE SIGNIFICANT  
INJURY TO A HUMAN.  
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AND DEVELOPMENT SOFTWARE USED TO DEVELOP AN APPLICATION, INSTALLATION ERRORS, SOFTWARE AND HARDWARE  
COMPATIBILITY PROBLEMS, MALFUNCTIONS OR FAILURES OF ELECTRONIC MONITORING OR CONTROL DEVICES,  
TRANSIENT FAILURES OF ELECTRONIC SYSTEMS (HARDWARE AND/OR SOFTWARE), UNANTICIPATED USES OR MISUSES, OR  
ERRORS ON THE PART OF THE USER OR APPLICATIONS DESIGNER (ADVERSE FACTORS SUCH AS THESE ARE HEREAFTER  
COLLECTIVELY TERMED “SYSTEM FAILURES”). ANY APPLICATION WHERE A SYSTEM FAILURE WOULD CREATE A RISK OF  
HARM TO PROPERTY OR PERSONS (INCLUDING THE RISK OF BODILY INJURY AND DEATH) SHOULD NOT BE RELIANT SOLELY  
UPON ONE FORM OF ELECTRONIC SYSTEM DUE TO THE RISK OF SYSTEM FAILURE. TO AVOID DAMAGE, INJURY, OR DEATH,  
THE USER OR APPLICATION DESIGNER MUST TAKE REASONABLY PRUDENT STEPS TO PROTECT AGAINST SYSTEM FAILURES,  
INCLUDING BUT NOT LIMITED TO BACK-UP OR SHUT DOWN MECHANISMS. BECAUSE EACH END-USER SYSTEM IS  
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LIMITATION, THE APPROPRIATE DESIGN, PROCESS AND SAFETY LEVEL OF SUCH SYSTEM OR APPLICATION.  
 
Compliance  
Compliance with FCC/Canada Radio Frequency Interference  
Regulations  
Determining FCC Class  
The Federal Communications Commission (FCC) has rules to protect wireless communications from interference. The FCC  
places digital electronics into two classes. These classes are known as Class A (for use in industrial-commercial locations only)  
or Class B (for use in residential or commercial locations). All National Instruments (NI) products are FCC Class A products.  
Depending on where it is operated, this Class A product could be subject to restrictions in the FCC rules. (In Canada, the  
Department of Communications (DOC), of Industry Canada, regulates wireless interference in much the same way.) Digital  
electronics emit weak signals during normal operation that can affect radio, television, or other wireless products.  
All Class A products display a simple warning statement of one paragraph in length regarding interference and undesired  
operation. The FCC rules have restrictions regarding the locations where FCC Class A products can be operated.  
Consult the FCC Web site at www.fcc.govfor more information.  
FCC/DOC Warnings  
This equipment generates and uses radio frequency energy and, if not installed and used in strict accordance with the instructions  
in this manual and the CE marking Declaration of Conformity*, may cause interference to radio and television reception.  
Classification requirements are the same for the Federal Communications Commission (FCC) and the Canadian Department  
of Communications (DOC).  
Changes or modifications not expressly approved by NI could void the user’s authority to operate the equipment under the  
FCC Rules.  
Class A  
Federal Communications Commission  
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC  
Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated  
in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and  
used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this  
equipment in a residential area is likely to cause harmful interference in which case the user is required to correct the interference  
at their own expense.  
Canadian Department of Communications  
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.  
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.  
Compliance with EU Directives  
Users in the European Union (EU) should refer to the Declaration of Conformity (DoC) for information* pertaining to the  
CE marking. Refer to the Declaration of Conformity (DoC) for this product for any additional regulatory compliance  
information. To obtain the DoC for this product, visit ni.com/certification, search by model number or product line,  
and click the appropriate link in the Certification column.  
*
The CE marking Declaration of Conformity contains important supplementary information and instructions for the user or  
installer.  
 
About This Manual  
Conventions ...................................................................................................................ix  
Related Documentation..................................................................................................x  
NI Vision Builder for Automated Inspection Documents...............................x  
Chapter 1  
Software Overview ........................................................................................................1-4  
NI Vision Builder for Automated Inspection ..................................................1-4  
LabVIEW Real-Time Module ..........................................................1-5  
Chapter 2  
Isolated Inputs................................................................................................................2-3  
Isolated Outputs .............................................................................................................2-4  
Connecting to Serial Devices.........................................................................................2-6  
Chapter 3  
Field of View .................................................................................................................3-1  
Image Sensor Spectral Response ...................................................................................3-3  
Partial Scan Mode..........................................................................................................3-3  
Binning...........................................................................................................................3-4  
Gain................................................................................................................................3-4  
Hardware Binarization...................................................................................................3-5  
© National Instruments Corporation  
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Contents  
Chapter 4  
Lighting  
Direct Drive Lighting Controller................................................................................... 4-2  
Lighting Files .................................................................................................. 4-4  
Connecting a Light to the Direct Drive Lighting Controller .......................... 4-6  
Chapter 5  
Determining the Maximum Frame Rate ......................................................... 5-7  
Determining the Scan Mode ........................................................................... 5-7  
Determining the Lighting Mode ..................................................................... 5-8  
Chapter 6  
FAIL LED....................................................................................................... 6-4  
Configuring DIP Switches............................................................................................. 6-4  
SAFE MODE Switch...................................................................................... 6-5  
IP RESET Switch............................................................................................ 6-5  
NO APP Switch .............................................................................................. 6-6  
CONSOLE Switch .......................................................................................... 6-6  
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Chapter 7  
Ethernet LEDs................................................................................................................7-2  
ACTIVITY/LINK LED...................................................................................7-2  
DHCP and Static IP Address Assignment .....................................................................7-3  
Chapter 8  
Thermal Considerations and Mounting  
Thermal Considerations.................................................................................................8-1  
Mounting the NI Smart Camera.....................................................................................8-2  
Appendix A  
Specifications  
Appendix B  
Troubleshooting  
Appendix C  
Technical Support and Professional Services  
Glossary  
Index  
© National Instruments Corporation  
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NI 17xx Smart Camera User Manual  
 
About This Manual  
This manual describes the electrical and mechanical aspects of the  
National Instruments 17xx Smart Camera. Refer to Getting Started with  
the NI 17xx Smart Camera for smart camera and accessory installation  
information.  
Conventions  
The following conventions appear in this manual:  
»
The » symbol leads you through nested menu items and dialog box options  
to a final action. The sequence File»Page Setup»Options directs you to  
pull down the File menu, select the Page Setup item, and select Options  
from the last dialog box.  
This icon denotes a note, which alerts you to important information.  
This icon denotes a caution, which advises you of precautions to take to  
avoid injury, data loss, or a system crash. When this symbol is marked on  
a product, refer to Getting Started with the NI 17xx Smart Camera for  
information about precautions to take.  
When symbol is marked on a product, it denotes a warning advising you to  
take precautions to avoid electrical shock.  
bold  
Bold text denotes items that you must select or click in the software, such  
as menu items and dialog box options. Bold text also denotes parameter  
names.  
italic  
Italic text denotes variables, emphasis, a cross-reference, or an introduction  
to a key concept. Italic text also denotes text that is a placeholder for a word  
or value that you must supply.  
monospace  
Text in this font denotes text or characters that you should enter from the  
keyboard, sections of code, programming examples, and syntax examples.  
This font is also used for the proper names of disk drives, paths, directories,  
programs, subprograms, subroutines, device names, functions, operations,  
variables, filenames, and extensions.  
monospace italic  
Italic text in this font denotes text that is a placeholder for a word or value  
that you must supply.  
© National Instruments Corporation  
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NI 17xx Smart Camera User Manual  
 
     
About This Manual  
Related Documentation  
The following documents contain information that you may find helpful as  
you read this manual:  
Hardware Documents  
Getting Started with the NI 17xx Smart Camera—Contains important  
safety information and information about installing and configuring  
NI Smart Cameras and accessories. You can access this manual by  
navigating to Start»All Programs»National Instruments»Vision»  
Documentation»NI-IMAQ.  
NI Developer Zone—Contains example programs, tutorials, technical  
presentations, the Instrument Driver Network, a measurement  
glossary, an online magazine, a product advisor, and a community area  
where you can share ideas, questions, and source code with developers  
around the world. The NI Developer Zone is located on the National  
Instruments Web site at ni.com/zone. You can find the following  
documents in the NI Developer Zone:  
Using the NI 17xx Smart Camera Direct Drive Lighting  
Controller—Demonstrates how to utilize the Direct Drive lighting  
controller feature on the NI 17xx Smart Camera with LabVIEW  
or Vision Builder for Automated Inspection.  
A Practical Guide to Machine Vision Lighting—Explains  
machine vision lighting concepts and theories.  
NI Vision Builder for Automated Inspection Documents  
NI Vision Builder for Automated Inspection Tutorial—Describes  
Vision Builder for Automated Inspection and provides step-by-step  
instructions for solving common visual inspection tasks, such as  
inspection, gauging, part presence, guidance, and counting.  
NI Vision Builder for Automated Inspection: Configuration  
Help—Contains information about using the Vision Builder for  
Automated Inspection Configuration Interface to create a machine  
vision application.  
NI Vision Builder for Automated Inspection: Inspection  
Help—Contains information about running applications created with  
Vision Builder for Automated Inspection in the Vision Builder  
Automated Inspection Interface.  
NI 17xx Smart Camera User Manual  
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About This Manual  
LabVIEW and NI Vision Development Module Documents  
LabVIEW Help—Includes information about LabVIEW programming  
concepts, step-by-step instructions for using LabVIEW, and reference  
information about LabVIEW VIs, functions, palettes, menus, and  
tools.  
Getting Started with LabVIEW—Use this manual as a tutorial to  
familiarize yourself with the LabVIEW graphical programming  
environment and the basic LabVIEW features you use to build data  
acquisition and instrument control applications.  
Getting Started with the LabVIEW Real-Time Module—Use this  
manual as a tutorial to familiarize yourself with the LabVIEW  
Real-Time Module and the basic Real-Time Module features you use  
to build real-time applications.  
NI Vision Concepts Manual—Describes the basic concepts of image  
analysis, image processing, and machine vision. This document also  
contains in-depth discussions about imaging functions for advanced  
users.  
NI Vision for LabVIEW Help—Describes how to create machine  
vision and image processing applications in LabVIEW using the  
Vision Development Module. The help file guides you through  
tasks beginning with setting up your imaging system to taking  
measurements. It also describes how to create a real-time vision  
application using NI Vision with the LabVIEW Real-Time Module  
and contains reference information about NI Vision for LabVIEW  
palettes and VIs.  
NI Vision Acquisition Software Documents  
NI-IMAQ VI Reference Help—Contains reference information about  
the LabVIEW VIs and properties for NI-IMAQ driver software.  
Measurement & Automation Explorer Help for NI-IMAQ—Describes  
how to configure NI-IMAQ driver software, NI image acquisition  
devices, and NI Smart Cameras using Measurement & Automation  
Explorer.  
© National Instruments Corporation  
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1
NI Smart Camera Overview  
This chapter provides an overview of the features and components of the  
National Instruments Smart Camera. Refer to Getting Started with the  
NI 17xx Smart Camera for smart camera and accessory installation  
information.  
Hardware Overview  
The NI Smart Camera is available in several different configurations.  
When a feature pertains only to specific smart camera models, a list at the  
beginning of the section shows which smart camera models support the  
feature.  
All smart camera models incorporate an image sensor, processor, and  
digital I/O in a compact, rugged housing.  
Table 1-1 shows the differentiating features for each smart camera model.  
Table 1-1. NI Smart Camera Models  
NI Smart  
Camera  
Model  
Direct Drive  
Lighting  
Controller  
Quadrature  
Encoder  
Support  
Processor  
Image Sensor  
NI 1722  
400 MHz PowerPC  
1/3 inch Sony ICX424AL CCD  
Monochrome  
640 × 480 pixels (VGA)  
No  
Yes  
Yes  
Yes  
Yes  
No  
Yes  
Yes  
Yes  
Yes  
NI 1742  
NI 1744  
NI 1762  
NI 1764  
533 MHz PowerPC  
533 MHz PowerPC  
1/3 inch Sony ICX424AL CCD  
Monochrome  
640 × 480 pixels (VGA)  
1/2 inch Sony ICX205AL CCD  
Monochrome  
1,280 × 1,024 pixels (SXGA)  
533 MHz PowerPC  
and 720 MHz DSP  
1/3 inch Sony ICX424AL CCD  
Monochrome  
640 × 480 pixels (VGA)  
533 MHz PowerPC  
and 720 MHz DSP  
1/2 inch Sony ICX205AL CCD  
Monochrome  
1,280 × 1,024 pixels (SXGA)  
© National Instruments Corporation  
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Chapter 1  
NI Smart Camera Overview  
For more information about the image sensors, refer to Chapter 3, NI Smart  
Camera Image Sensor. For complete smart camera specifications, refer to  
Appendix A, Specifications.  
All smart cameras have an RS-232 serial port, Gigabit Ethernet ports, and  
use a standard C-mount lens. Some smart camera models also include the  
Direct Drive lighting controller and support for quadrature encoders. The  
Direct Drive lighting controller is an integrated controller to directly power  
a variety of third-party current-controlled lights. Refer to Chapter 4,  
Lighting, for more information about the Direct Drive lighting controller.  
The smart camera also has one 5 V TTL strobe output and one unregulated  
24 V strobe output for lighting control.  
The smart camera also includes LEDs for communicating system status,  
four DIP switches to specify startup options, isolated inputs, and isolated  
outputs for connecting to external devices. Refer to Chapter 6, LEDs and  
DIP Switches, for more information about the LEDs and DIP switches.  
Refer to Chapter 2, Power and I/O, for more information about the digital  
I/O capabilities of the smart camera.  
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Chapter 1  
NI Smart Camera Overview  
Figure 1-1 shows the smart camera.  
4
1
2
7
-
+
GND  
5V  
24V  
3
6
5
NI 17XX SMART CAMERA  
1
2
3
4
Image Sensor  
5
6
7
DIP Switches  
POWER-I/O Connector  
Ethernet Ports  
Standard C Lens Mount  
Lighting Connector  
LEDs  
Figure 1-1. NI Smart Camera  
© National Instruments Corporation  
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Chapter 1  
NI Smart Camera Overview  
Software Overview  
Developing applications with the NI Smart Camera requires one of the  
following software options:  
or  
LabVIEW  
Vision Builder  
for  
Automated Inspection  
LabVIEW Real-Time Module  
NI Vision Development Module  
NI Vision Acquisition Software  
The installation and configuration process for each development  
environment is different. Refer to Getting Started with the NI 17xx Smart  
Camera for installation and configuration instructions.  
The following sections describe the software options. For detailed  
information about individual software packages, refer to the documentation  
specific to the package.  
Note Vision Builder for Automated Inspection and NI Vision Acquisition Software are  
included with the smart camera. LabVIEW, the LabVIEW Real-Time Module, and the  
NI Vision Development Module are sold separately.  
NI Vision Builder for Automated Inspection  
Vision Builder for Automated Inspection (Vision Builder AI) is  
configurable machine vision software you can use to configure the  
NI Smart Camera and prototype, benchmark, and deploy machine vision  
applications.  
Creating applications in Vision Builder AI does not require programming.  
Vision Builder AI allows you to easily configure and benchmark a  
sequence of visual inspection steps, as well as deploy the visual inspection  
system for automated inspection. With Vision Builder AI, you can perform  
powerful visual inspection tasks and make decisions based on the results  
of individual tasks. You can also migrate your configured inspection to  
LabVIEW, extending the capabilities of your applications if necessary.  
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Chapter 1  
NI Smart Camera Overview  
LabVIEW  
LabVIEW is a graphical programming environment for developing flexible  
and scalable applications. To develop machine vision applications with the  
NI Smart Camera and LabVIEW, you must have the following add-on  
modules: LabVIEW Real-Time Module, NI Vision Development Module,  
and Vision Acquisition Software.  
LabVIEW Real-Time Module  
The LabVIEW Real-Time Module combines LabVIEW graphical  
programming with the power of Real-Time (RT) hardware, enabling you to  
build deterministic, real-time systems. You develop VIs in LabVIEW and  
embed the VIs on RT targets, such as the NI Smart Camera. The RT target  
runs VIs without a user interface and offers a stable platform for real-time  
VIs. For more information about the LabVIEW Real-Time Module, refer  
to the LabVIEW Help.  
NI Vision Development Module  
The NI Vision Development Module is an image acquisition, processing,  
and analysis library of hundreds of functions for the following common  
machine vision tasks:  
Pattern matching  
Particle analysis  
Gauging  
Taking measurements  
Grayscale, color, and binary image display  
With the NI Vision Development Module you can acquire, display, and  
store images as well as perform image analysis and processing. Using the  
NI Vision Development Module, imaging novices and experts can program  
the most basic or complicated image applications without knowledge of  
particular algorithm implementations.  
For information about how to use the NI Vision Development Module with  
the LabVIEW Real-Time Module, refer to the NI Vision for LabVIEW  
Help.  
© National Instruments Corporation  
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Chapter 1  
NI Smart Camera Overview  
NI Vision Acquisition Software  
The NI Vision Acquisition Software CD contains Measurement &  
Automation Explorer (MAX) configuration software and NI-IMAQ driver  
software.  
Use MAX to configure the NI Smart Camera. You can set the IP address,  
update software on the smart camera, configure triggering, and set up  
the lighting features. For more information about MAX, refer to the  
Measurement & Automation Explorer Help for NI-IMAQ  
NI-IMAQ is the interface path between the application software and the  
smart camera. NI-IMAQ also controls the I/O and image acquisition on the  
smart camera.  
NI-IMAQ includes an extensive library of VIs you can call from LabVIEW.  
These VIs include routines for video configuration, continuous and  
single-shot image acquisition, and trigger control.  
The NI-IMAQ driver software performs all functions necessary for  
acquiring and saving images but does not perform image analysis.  
NI-IMAQ features both high-level and low-level functions. A function that  
acquires images in single-shot or continuous mode is an example of a  
high-level function. A function that requires advanced understanding of  
image acquisition, such as configuring an image sequence, is an example  
of a low-level function.  
For information about using NI-IMAQ to configure an acquisition, refer to  
the NI-IMAQ VI Reference Help.  
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2
Power and I/O  
This chapter provides information about the NI Smart Camera  
POWER-I/O connector, connecting isolated inputs and isolated outputs,  
and connecting to serial devices and to quadrature encoders.  
POWER-I/O Connector  
The POWER-I/O connector provides signal connections for power and I/O,  
including isolated inputs and outputs, quadrature encoders, and serial  
devices. The POWER-I/O connector is a standard female high-density  
15-pin D-SUB connector. Table 2-1 shows the pin organization for the  
POWER-I/O connector. The two pins used to connect to a power supply,  
pin 15 and pin 5, are also shown in the table. Refer to Getting Started with  
the NI 17xx Smart Camera for information about connecting a power  
supply to the NI Smart Camera.  
Table 2-1 lists the signal names and pin numbers for the 15-pin  
POWER-I/O connector. The table also lists the wire colors for the 15-pin  
D-SUB pigtail cable (part number 197818-05), sold separately by National  
Instruments. Cables sold by other manufacturers could have different wire  
colors.  
Table 2-1. POWER-I/O Connector Signal Descriptions  
Connector Diagram  
Signal Name  
+24 V  
Pin Number  
Wire Color  
Red  
5
COM  
15  
10  
14  
2
Black  
11  
6
15 (COM)  
RS232_TXD  
RS232_RXD  
Pink  
10  
Black/White  
Brown  
1
5 (+24 V)  
TrigIn+  
IsoIn(0)+  
IsoIn(1)+  
8
Orange  
© National Instruments Corporation  
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Chapter 2  
Power and I/O  
Table 2-1. POWER-I/O Connector Signal Descriptions (Continued)  
Connector Diagram  
Signal Name  
Pin Number  
Wire Color  
TrigIn–  
IsoIn(0)–  
IsoIn(1)–  
12  
Light Green  
IsoOut(0)+  
IsoOut(0)–  
IsoOut(1)+  
IsoOut(1)–  
PhaseA+  
6
1
Yellow  
Green  
11  
6
15 (COM)  
11  
7
Light Blue  
Gray  
10  
1
5 (+24 V)  
3
Blue  
PhaseA–  
13  
9
Brown/White  
Purple  
PhaseB+  
PhaseB–  
4
White  
NI Smart Camera Power Requirements  
Caution Use the NI Smart Camera only with a 24 VDC, UL listed, limited power source  
(LPS) supply. The power supply should bear the UL listed mark, LPS. The power supply  
must meet any safety and compliance requirements for the country of use.  
The smart camera uses a nominal 24 VDC power source. The smart camera  
accepts power within the range of the industry standard IEC 1311 input  
power specification (24 V +20%/–15% with an additional allowance for an  
AC peak of +5%). Refer to Appendix A, Specifications, for complete  
power requirement specifications.  
Caution The 24 V external lighting strobe is an unregulated output dependent on the range  
of the power supply provided to the smart camera. If the power provided to the smart  
camera is +20%/–15% with +5% AC ripple, the external lighting strobe output could be  
as high as 30 V. If the provided power exceeds the input voltage specifications of the  
third-party lighting controller, do not connect the 24 V lighting strobe output to the  
controller to prevent damage to the controller. Use a power supply with tolerances that  
meet the requirements of the controller, or use the 5 V external lighting strobe.  
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Chapter 2  
Power and I/O  
If you are using the Direct Drive lighting controller, the power supply  
wattage must be sufficient to power both the camera and the light. The  
power required by the light can be significantly more than the power  
required by the smart camera.  
Isolated Inputs  
Caution Do not apply a voltage greater than 30 VDC to the isolated inputs. Voltages  
greater than 30 VDC may damage the NI Smart Camera.  
Caution The isolated inputs and outputs on the smart camera provide an easy means for  
preventing ground loops that could degrade signal integrity. The isolation on the smart  
camera is not safety isolation.  
You can wire an isolated input to both sourcing and sinking output devices.  
Refer to Figures 2-1 and 2-2 for wiring examples by output type. Refer to  
Appendix A, Specifications, for current requirements.  
Isolated inputs are not compatible with 5 V logic.  
Sensor  
Power  
TrigIn+  
IsoIn(0)+  
PNP (Sourcing)  
Output Device  
IsoIn(1)+  
TrigIn–  
Sensor  
IsoIn(0)–  
IsoIn(1)–  
Common  
NI 17xx  
Figure 2-1. Connecting External Sourcing Output Sensors to Isolated Inputs  
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Sensor  
Power  
TrigIn+  
IsoIn(0)+  
NPN (Sinking)  
Output Device  
IsoIn(1)+  
TrigIn–  
IsoIn(0)–  
IsoIn(1)–  
Sensor  
Common  
NI 17xx  
Figure 2-2. Connecting External Sinking Output Sensors to Isolated Inputs  
Isolated Outputs  
Caution Do not power the load connected to the isolated outputs with any external power  
supply greater than 30 VDC. Voltages greater than 30 VDC may damage the NI Smart  
Camera.  
Caution The isolated inputs and outputs on the smart camera provide an easy means for  
preventing ground loops that could degrade signal integrity. The isolation on the smart  
camera is not safety isolation.  
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The isolated outputs can be used to drive external loads, as shown in  
Figures 2-3 and 2-4.  
Sensor  
Power  
IsoOut+  
Sourcing  
Load  
Sensor  
Common  
IsoOut–  
NI 17xx  
Figure 2-3. Connecting an Isolated Output to a Sourcing External Load  
Sensor  
Power  
IsoOut+  
IsoOut–  
Sinking  
Load  
NI 17xx  
Sensor  
Common  
Figure 2-4. Connecting an Isolated Output to a Sinking External Load  
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Protecting Against Inductive Loads  
When an inductive load, such as a relay or solenoid, is connected to an  
output, a large counter-electomotive force may occur at switching time due  
to energy stored in the inductive load. This flyback voltage can damage the  
outputs and the power supply.  
To limit flyback voltages at the inductive load, install a flyback diode across  
the load. Mount the flyback diode as close to the load as possible. Use this  
protection method if you connect any of the isolated outputs to an inductive  
load.  
Connecting to Serial Devices  
Use the RS232_RXD and RS232_TXD signals on the POWER-I/O  
connector for serial communication. Connect the RS232_RXD signal on  
the NI Smart Camera to the Tx signal on your serial device. Connect the  
RS232_TXD signal on the smart camera to the Rx signal on your serial  
device. Connect COM on the smart camera to the ground of your serial  
device.  
When the CONSOLE DIP switch is in the OFF position, you can use the  
NI-Serial driver for serial communication. You must install the NI-Serial  
software on the smart camera; it is not installed by default. Refer to the  
Serial Hardware and Software Help for information about installing the  
NI-Serial software on LabVIEW Real-Time targets, such as the smart  
camera. To open this document, navigate to Start»All Programs»  
National Instruments»NI-Serial»NI-Serial Help.  
Communicating with the Console  
When the CONSOLE DIP switch is in the ON position, you can read device  
information from the NI Smart Camera during startup, such as the  
IP address and firmware version, through a serial port terminal program.  
Ensure that the serial port terminal program is configured to the following  
settings:  
9,600 bits per second  
Eight data bits  
No parity  
No flow control  
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Connecting to a Quadrature Encoder  
This section applies only to the following NI Smart Cameras:  
NI 1742  
NI 1744  
NI 1762  
NI 1764  
Connect RS-422 compatible differential quadrature encoders to the  
NI 17xx Smart Camera to provide positional information. A quadrature  
encoder uses two output channels, Phase A and Phase B, to track the  
position of a rotary shaft. Generally, the shaft is coupled to a motor drive  
that controls the movement of an object. By providing Phase A and Phase B  
signals to the smart camera, you can obtain a precise measurement of the  
object position. Using a quadrature encoder gives you the ability to specify  
your trigger delay in terms of positional units—such as inches or  
centimeters, after applying the resolution information of your  
encoder—rather than time.  
National Instruments does not recommend the use of single-ended  
encoders with the smart camera. This configuration would require the  
ground for a single-ended encoder to be connected to the COM pin of the  
smart camera, and the PhaseA– and PhaseB– signals would be left  
unconnected. In this configuration, the system is susceptible to significant  
noise that would be eliminated by using a differential encoder.  
Shielded encoder cables are recommended for all applications. Unshielded  
cables are more susceptible to noise and can corrupt the encoder signals.  
Refer to the External Trigger section of Chapter 5, Image Acquisition,  
for information about using a quadrature encoder to delay a trigger.  
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Figure 2-5 shows an example of connecting the quadrature encoder  
differential line drivers.  
Encoder  
NI 17xx  
Phase A+  
Phase A  
Twisted  
Pair  
Phase A–  
Phase A–  
Phase B+  
Phase B  
Twisted  
Pair  
Phase B–  
Phase B–  
Figure 2-5. Connecting Differential Line Drivers  
Figure 2-6 shows the internal quadrature encoder/RS-422 input circuit.  
+3.3 V  
10 kΩ  
10 kΩ  
10 kΩ  
10 kΩ  
+
Phase A+  
Phase A–  
+
Phase B+  
Phase B–  
7.5 kΩ  
7.5 kΩ  
7.5 kΩ  
7.5 kΩ  
NI 17xx  
Figure 2-6. NI Smart Camera Quadrature Encoder Input Circuit  
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NI Smart Camera Image Sensor  
This chapter provides an overview of the NI Smart Camera image sensors,  
field of view, spectral response, partial scan mode, binning, gain, and  
hardware binarization. NI 1722/1742/1762 Smart Cameras use a VGA  
sensor. NI 1744/1764 Smart Cameras use an SXGA sensor. Refer to  
Appendix A, Specifications, for information about your smart camera  
image sensor.  
Field of View  
The field of view is the area under inspection that will be imaged by the  
NI Smart Camera. It is critical to ensure that the field of view of your  
system includes the object you want to inspect.  
To calculate the horizontal and vertical field of view (FOV) of your imaging  
system, use Equation 3-1 and the specifications for the image sensor of  
your smart camera, as listed in Appendix A, Specifications.  
Pixel Pitch × Active Pixels × Working Distance  
FOV = -----------------------------------------------------------------------------------------------------------------  
(3-1)  
Focal Length  
where FOV is the field of view in either the horizontal or vertical  
direction,  
Pixel Pitch measures the distance between the centers of adjacent  
pixels in either the horizontal or vertical direction,  
Active Pixels is the number of pixels in either the horizontal or  
vertical direction,  
Working Distance is the distance from the front element (external  
glass) of the lens to the object under inspection, and  
Focal Length measures how strongly a lens converges (focuses)  
or diverges (diffuses) light.  
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Figure 3-1 illustrates horizontal field of view and working distance.  
1
2
3
1
2
Horizontal Imaging Width  
Working Distance  
3
Horizontal Field of View  
Figure 3-1. Parameters of an Imaging System  
For example, if the working distance of your imaging setup is 100 mm, and  
the focal length of the lens is 8 mm, then the field of view in the horizontal  
direction of a smart camera using the VGA sensor in full scan mode is  
0.0074 mm × 640 × 100 mm  
FOVhorizontal = -------------------------------------------------------------------- = 59.2 mm  
(3-2)  
8 mm  
Similarly, the field of view in the vertical direction is  
0.0074 mm × 480 × 100 mm  
FOVvertical = -------------------------------------------------------------------- = 44.4 mm  
(3-3)  
8 mm  
Based on the result of Equations 3-2 and/or 3-3, you can see that you might  
need to adjust the various parameters in the FOV equation until you achieve  
the right combination of components that match your inspection needs.  
This might include increasing your working distance, choosing a lens with  
a shorter focal length, or changing to a high resolution camera.  
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Image Sensor Spectral Response  
The spectral response curve describes the relative sensitivity of the sensor  
to different wavelengths of light. The peak responsiveness of the VGA and  
SXGA sensors is to light with a wavelength of approximately 500 nm.  
If you are imaging a dim scene, this information can be useful when  
selecting a light source to use in your application as the camera is most  
sensitive at its peak responsiveness. It also helps determine what, if any,  
filters your application might require to remove undesired wavelengths of  
light from the scene.  
Refer to Appendix A, Specifications, to find the normalized spectral  
response curves for the VGA and SXGA sensors.  
Partial Scan Mode  
Partial scan mode is a method of obtaining higher frame rates by reading  
out only a portion of the image from the sensor. Partial scan is frequently  
used when an application requires higher speed but less resolution than the  
sensor offers in full scan mode. The NI Smart Camera supports 1/2 scan  
and 1/4 scan. In 1/2 scan, shown in Figure 3-2b, one half of the image is  
read out from the center of the sensor and the rest of the image is discarded  
to enable a faster start of the next frame. In 1/4 scan, only one quarter of the  
image is read out. Figure 3-2 illustrates the portion of the sensor exposed  
during partial scanning.  
a
b
c
a
Full Scan  
b
1/2 Scan  
c
1/4 Scan  
Figure 3-2. Partial Scan Modes  
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Binning  
Binning can improve the light sensitivity of the sensor by treating adjacent  
pixels as a single pixel. Binning allows the image sensor to collect more  
electrons per pixel, which reduces the amount of required light and  
exposure time. Binning results in higher frame rates and lower spatial  
resolution in the vertical direction. The NI Smart Camera supports  
1 × 2 binning. Figure 3-3 illustrates what happens to the sensor output  
during binning.  
a
b
a
No Binning  
b
Binning  
Figure 3-3. Binning  
Gain  
Gain is a multiplier applied to the analog signal prior to digitization.  
Increasing the gain increases the amplitude of the signal. Gain allows you  
to trade off between making smaller signals more visible at the cost of  
increased noise and no longer being able to differentiate between larger  
signals. For most applications, the NI Smart Camera default gain setting  
optimizes the balance between small signals and large signals.  
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Figure 3-4 shows what happens when gain is applied to a signal.  
255  
255  
255  
b.  
a.  
c.  
a
Low Gain  
b
Medium Gain  
c
High Gain  
Figure 3-4. Effect of Gain on the Video Signal  
In Figure 3-4a, low gain has been applied to the signal. The pixel values in  
the image are grouped close together. In Figure 3-4b, medium gain has  
been applied to the signal; there are now more notable differences in pixel  
value within the image. In Figure 3-4c, high gain has been applied to the  
signal; at high gain, mid-range and bright portions of the image are now  
both represented as white, the highest pixel value. In Figure 3-4c, several  
bright areas of the image have been clipped to the maximum pixel value,  
and you can no longer distinguish subtle shading in the brightest areas of  
the image.  
Gain can be useful when there is not enough available light and you need  
to increase the brightness of your images. However, increasing gain  
multiplies both the signal and noise. When possible, it is preferable to add  
additional lighting.  
Hardware Binarization  
The NI Smart Camera supports binarization and inverse binarization of  
acquired images. Binarization and inverse binarization segment an image  
into two regions—a particle region and a background region. Use  
binarization and inverse binarization to isolate objects of interest in an  
image.  
To separate objects under consideration from the background, select a pixel  
value range. This pixel value range is known as the gray-level interval, or  
the threshold interval. When enabled, binarization sets all image pixels that  
fall within the threshold interval to the image white value and sets all other  
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image pixels to black. Pixels inside the threshold interval are considered  
part of the particle region. Pixels outside the threshold interval are  
considered part of the background region.  
Inverse binarization reverses the assigned bit numbers of the particle region  
and the background region. All pixels that belong in the threshold interval,  
or the particle region, are set to black, and all pixels outside the threshold  
interval, or the background region, are set to the image white value.  
Figure 3-5 illustrates binarization and inverse binarization.  
NORMAL  
INVERSE  
Sampled Data  
Sampled Data  
Figure 3-5. Binarization and Inverse Binarization  
You can enable hardware binarization in the following ways:  
In Vision Builder AI, configure the Lookup Table attribute on the  
Advanced tab of the Acquire Image (Smart Camera) step. Refer to  
the NI Vision Builder for Automated Inspection: Configuration Help  
for more information.  
In MAX, use the Lookup Table drop-down box on the LUT tab of the  
smart camera configuration page to enable hardware binarization.  
Refer to the Measurement & Automation Explorer Help for NI-IMAQ  
for more information.  
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4
Lighting  
One of the most important aspects of setting up your imaging environment  
is proper illumination. Images acquired under proper lighting conditions  
make your image processing software development easier and overall  
processing time faster. The following sections describe how to use the  
Direct Drive lighting controller and the strobe outputs of the NI Smart  
Camera to control a light.  
Lighting Connector  
Figure 4-1 shows the lighting connector on the NI Smart Camera.  
Caution All signals on the lighting connector are outputs from the smart camera. Do not  
connect any external voltage or current source to any pin on the lighting connector.  
Note The NI 1722 does not offer the Direct Drive lighting controller. Do not connect to  
the LED+ and LED– connectors on the NI 1722.  
1
2
GND  
3
5V  
4
24V  
5
1
2
3
LED– Output (Not Available on the NI 1722)  
LED+ Output (Not Available on the NI 1722)  
Ground Output  
4
5
24 V Strobe Output  
Figure 4-1. NI Smart Camera Lighting Connector  
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Lighting  
Note Additional/replacement plugs for use with the lighting connector, part number  
780260-01, are available from NI.  
Direct Drive Lighting Controller  
This section applies only to the following NI Smart Cameras:  
NI 1742  
NI 1744  
NI 1762  
NI 1764  
The NI Smart Camera offers an innovative lighting controller that directly  
powers third-party current controlled lights. With other smart cameras,  
a lighting controller that drives a light must be purchased separately.  
The Direct Drive lighting controller is capable of powering a variety of  
third-party lights.  
For a current controlled light, higher current produces more light, up to the  
maximum current rating of the light. The maximum current rating of the  
light is specified by the manufacturer and based on the average amount of  
power that can be safely dissipated by the light.  
The Direct Drive controller can operate in continuous or strobed mode.  
When operating in strobed mode, the controller can provide more current  
to the light than in continuous mode. The average power dissipated while  
strobing the light for a short period of time at a higher current can be  
comparable to the average power dissipated while running the light  
continuously at a lower current. Table 4-1 shows the maximum allowed  
current for continuous mode and strobed mode.  
Table 4-1. Maximum Allowed Current for Direct Drive Lighting Controller  
Maximum Strobed Current  
Maximum Continuous Current  
1 A  
500 mA  
For applications with a pause between exposures while new parts move into  
position, you can strobe the light, which allows the use of higher current  
and produces more light; thus you can reduce the exposure time. A shorter  
exposure time decreases the time it takes to acquire an image and  
potentially increases the total throughput of the system. Refer to the  
Exposure section of Chapter 5, Image Acquisition, for more information  
about exposure control.  
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The smart camera automatically synchronizes the lighting strobe with the  
image sensor exposure. The smart camera always turns the light on before  
an exposure starts and turns the light off once the exposure completes.  
The duration of the light strobe is dictated by the exposure time. Refer to  
Chapter 5, Image Acquisition, for more information.  
When operating in strobed mode, it is important that the strobe duty cycle  
and strobe duration are within the specified limits of both the light and the  
Direct Drive lighting controller. The strobe duration is the amount of time  
that the light remains on. The strobe duration limit is the maximum amount  
of time that the light can remain on when being driven at the maximum  
current. The duty cycle is the ratio of the strobe duration to the frame  
period, expressed as a percentage. Refer to the Maximum Frame Rate  
section of Chapter 5, Image Acquisition, for more information about the  
frame period.  
By default, you can set the exposure time to any setting within the range  
supported by your smart camera. However, if the smart camera is  
configured to use the Direct Drive lighting controller in strobed mode, care  
must be taken to ensure that the resulting strobe duty cycle and strobe  
duration do not violate the limits of the Direct Drive lighting controller or  
the limits of the light. For your convenience, the software calculates the  
resulting strobe duration and duty cycle for your configured frame rate and  
exposure time. It then compares them to the limits of the Direct Drive  
lighting controller and the limits specified in the associated lighting file.  
Refer to the Lighting Files section of this chapter or the Maximum Frame  
Rate section of Chapter 5, Image Acquisition, for more information.  
If the requested exposure time violates the limits of the Direct Drive  
lighting controller or the limits for your light as specified in the associated  
lighting file, the smart camera can use the requested exposure time, but  
requires the configured current to be at or below the maximum continuous  
Caution If you are using the 5 V strobe output or the 24 V strobe output, the software does  
not impose any limits on the duration or the duty cycle of the strobe output. You must  
ensure that your requested exposure time and the frame rate result in duration and duty  
cycle that do not violate the limits of the external controller and/or light(s). Refer to the  
Maximum Frame Rate section of Chapter 5, Image Acquisition, for more information.  
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Lighting Files  
A lighting file is a text file that contains information about a light, such as  
the type and color of the light, maximum current limit, and maximum  
strobe duty cycle. Lighting files have the extension .ild. MAX and Vision  
Builder AI use lighting files to ensure that the current limits and duty cycle  
of your light are not exceeded when the light is used with the Direct Drive  
lighting controller. Lighting files exist in four levels of certification:  
Digitally Signed by National Instruments—The information  
contained within the lighting file has been verified as correct and safe  
by National Instruments. Contact National Instruments for support  
regarding this lighting data file or the light to which it refers.  
Digitally Signed by a Third-Party Company—The information  
contained within the lighting file has been verified as correct and safe  
by the specified third-party company. Contact the third-party company  
for support regarding this lighting data file or the light to which it  
refers.  
Not Digitally Signed—The information contained within the lighting  
file meets the requirements of Direct Drive lighting; however, it has not  
been verified that the information is safe to use with the specified light.  
Use this file at your own risk.  
Invalid—The information contained within the lighting file is  
unusable because the data does not meet the requirements of Direct  
Drive lighting, the data describing the light is not in the proper syntax,  
or the digital signature has been altered.  
In digitally signed lighting files, the current limit and duty cycle limit are  
encoded as part of the signing process. The limits in signed lighting files  
are not human-readable. Modifying a signed lighting file will invalidate the  
signature and render the file unusable.  
To use a light that has a lighting file, you can select the lighting data in  
MAX or Vision Builder AI:  
In MAX—Select the Lighting tab of the NI Smart Camera  
configuration page. Click Configure Light, and select Select Light.  
In Vision Builder AI—Select the Lighting tab of the Acquire Image  
(Smart Camera) step. Click Configure Light Source, and select  
Select Light.  
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To use a light that does not have a lighting file, you can enter the lighting  
data manually in MAX or Vision Builder AI:  
In MAX—Select the Lighting tab of the NI Smart Camera  
configuration page. Click Configure Light, and select Enter  
Lighting Data Manually.  
In Vision Builder AI—Select the Lighting tab of the Acquire Image  
(Smart Camera) step. Click Configure Light Source, and select  
Enter Lighting Data Manually.  
Lighting files are installed to the following locations when you install  
NI-IMAQ. Xrepresents the letter of the CD drive:  
Windows VistaX:\Users\Public\Documents\National  
Instruments\NI-IMAQ\Data  
Windows XP/2000X:\Documents and Settings\All Users\  
Documents\National Instruments\NI-IMAQ\Data  
Selecting a Light  
This section applies only to the following NI Smart Cameras:  
NI 1742  
NI 1744  
NI 1762  
NI 1764  
National Instruments software provides support for a variety of lights from  
major machine vision lighting companies. However, if your light is not in  
the list of supported lights, you may still be able to use your light with the  
Direct Drive lighting controller.  
To determine if your light is compatible with the NI Smart Camera, verify  
the following:  
The light is current controlled and not voltage controlled.  
The smart camera can provide enough current to obtain the desired  
illumination from the light.  
The maximum voltage drop specified for the light does not exceed the  
specified range of the smart camera. Under some circumstances, some  
LEDs, particularly certain lights with white and blue LEDs, require a  
higher voltage drop than usual to turn on or reach full brightness. Such  
lights may be incompatible with the smart camera. These lights may  
need to be reconfigured by the manufacturer to bring the voltage drop  
within the specified range of the smart camera.  
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The minimum voltage drop specified for the light does not fall below  
the specified range of the smart camera. Under some circumstances  
some LEDs, particularly certain lights with infrared LEDs and lights  
with only one LED per string, present a lower voltage drop than usual  
and may be incompatible with the smart camera. These lights may  
need to be reconfigured by the manufacturer to bring the voltage drop  
within the specified range of the smart camera.  
Note The voltage drop of a light can vary significantly with environmental conditions,  
such as ambient temperature, current supplied, and strobe time.  
Refer to Appendix A, Specifications, for complete specifications for the  
Direct Drive lighting controller.  
Connecting a Light to the Direct Drive Lighting Controller  
This section applies only to the following NI Smart Cameras:  
NI 1742  
NI 1744  
NI 1762  
NI 1764  
Figure 4-2 illustrates how to connect a light to the Direct Drive lighting  
controller. Do not use the GND signal when connecting a light to the Direct  
Drive lighting controller.  
+
LED  
LED  
Direct  
Drive  
LED  
NI 17xx  
Figure 4-2. Connecting a Light to the Direct Drive Lighting Controller  
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The Direct Drive controller performs an initialization sequence to achieve  
the requested current output prior to acquiring the first image. You may  
notice a sequence of short flashes from the light when the application  
initializes or shuts down.  
External Lighting Controllers  
While the Direct Drive lighting controller is designed to handle common  
machine vision lighting requirements, some applications require the use of  
a light with current or voltage requirements beyond those supported by the  
Direct Drive. Other applications require more than one light. All NI Smart  
Cameras support connections to third-party lighting controllers to solve  
these applications.  
The smart camera provides two types of external lighting outputs for  
synchronizing third-party controllers to the exposure of the smart camera:  
a 5 V TTL strobe output and a 24 V strobe output. The 5 V TTL strobe  
output is available for connecting to devices that require a 5 V signal. The  
24 V strobe output is powered by the voltage from the smart camera power  
supply and is available for controllers that require higher voltage inputs.  
The 24 V strobe output is nominally a 24 V output if 24 V power is supplied  
to the smart camera.  
Caution The 24 V external lighting strobe is an unregulated output dependent on the range  
of the power supply provided to the smart camera. If the power provided to the smart  
camera is +20%/–15% with +5% AC ripple, the output could be as high as 30 V. If the  
provided power exceeds the input voltage specifications of the third-party lighting  
controller, do not connect the 24 V lighting strobe output to the controller to prevent  
damage to the controller. Use a power supply with tolerances that meet the requirements  
of the controller, or use the 5 V external lighting strobe.  
When enabled, the 5 V and 24 V external strobe outputs create a strobe  
pulse that can be used as a level-sensitive signal by third-party controllers  
to strobe the light simultaneously with the image exposure. Alternatively,  
if the third-party lighting controller supports a programmable strobe time,  
the controller can be programmed for any arbitrary strobe duration, and the  
assertion edge of the smart camera output can start the strobe timer in the  
controller.  
Caution If you are using the 5 V strobe output or the 24 V strobe output, the software does  
not impose any limits on the duration or the duty cycle of the strobe output. You must  
ensure that your requested exposure time and the frame rate result in duration and duty  
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cycle that do not violate the limits of the external controller and/or light(s). Refer to the  
Maximum Frame Rate section of Chapter 5, Image Acquisition, for more information.  
Enable the 5 V and 24 V lighting outputs as follows:  
In Vision Builder AI, enable the 5 V TTL Strobe and/or 24 V Strobe  
controls on the Lighting tab of the Acquire Image (Smart Camera)  
step. Refer to the NI Vision Builder for Automated Inspection:  
Configuration Help for more information about configuring the  
5 V TTL and 24 V strobe outputs.  
In LabVIEW, configure the 24V Strobe and 5V Strobe lighting  
properties. Refer to the NI-IMAQ VI Reference Help for more  
information about configuring the 5 V TTL and 24 V strobe outputs.  
In MAX, select the 5 V TTL Strobe and/or 24 V Strobe checkboxes  
on the Lighting tab of the smart camera configuration page. Refer to  
the Measurement & Automation Explorer Help for NI-IMAQ for more  
information about configuring the 5 V TTL and 24 V strobe outputs.  
Connecting an External Lighting Controller to the NI Smart Camera  
Figure 4-3 illustrates how to connect an external lighting controller to the  
5 V TTL output on the NI Smart Camera.  
5 V TTL Strobe Output  
GND Output  
External  
Lighting  
Controller  
LED  
NI 17xx  
Figure 4-3. Connecting an External Lighting Controller to the 5 V TTL Strobe Output  
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Lighting  
Figure 4-4 illustrates how to connect an external lighting controller to the  
24 V output on the NI Smart Camera.  
24 V Strobe Output  
(~ 18 V – 30 V)  
GND Output  
External  
Lighting  
Controller  
LED  
NI 17xx  
Figure 4-4. Connecting an External Lighting Controller to the 24 V Strobe Output  
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5
Image Acquisition  
This chapter contains information about acquiring images with the  
NI Smart Camera and explains the relationships between triggering,  
lighting, and exposure.  
Exposure  
The NI Smart Camera provides control of the image sensor exposure time  
through software. The exposure time is the amount of time that light is  
allowed to strike the sensor to produce an image. When light strikes the  
surface of the sensor, it dislodges electrons. As more light strikes the  
sensor, more electrons are freed, creating a charge on the sensor.  
For a given amount of light, the sensor collects more charge during a longer  
exposure time than a shorter exposure time. Because the charge is what is  
read out to produce the image, it is important to have an optimal amount of  
light and exposure time for your application.  
Exposing the image sensor for too short of a time relative to the amount of  
light in the environment results in a dark, low contrast image. Exposing the  
image sensor for too long of a time relative to the amount of light in the  
environment results in a bright, low contrast image. When the image sensor  
is exposed for an appropriate amount of time relative to the light in the  
environment, acquired images will exhibit appropriate contrast to easily  
distinguish both dark and light features. Contrast is a key factor in obtaining  
good results from image processing algorithms.  
In applications where the object under inspection is moving, the exposure  
the exposure, the resulting image is blurry and unsuitable for processing.  
The maximum exposure time for imaging a moving object without blurring  
depends on the per pixel spatial resolution and the rate of motion of the  
object. The per pixel spatial resolution is the field of view, calculated in  
the Field of View section of Chapter 3, NI Smart Camera Image Sensor,  
divided by the number of pixels in the sensor. Together, this information  
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can be used to calculate the maximum exposure. Assuming the object is  
moving horizontally across the field of view, use Equation 5-1 to calculate  
the maximum exposure time.  
RHorizontal × 2  
(FOVHorizontal) ⁄ (NHorizontal  
Emax = ------------------------------------------------------------------------  
(5-1)  
)
where Emax is the maximum exposure time without blurring,  
R is the rate of motion of the object either horizontally or  
vertically,  
FOV is the field of view in the direction of motion, and  
N is the number of sensor pixels in the direction of motion  
For many applications that include moving objects, additional lighting is  
necessary to achieve good image contrast due to the short exposure time  
required to avoid motion blur.  
Additionally, in many environments, the ambient light conditions vary too  
significantly to obtain consistent results without adding dedicated lighting.  
For example, in a building with windows, the ambient light can vary  
significantly with weather. Also, standard fluorescent lighting flickers at a  
rate that is perceivable by the smart camera. In these situations, the ambient  
light must be overridden with a dedicated light source to ensure  
reproducible results.  
Acquiring Images  
You can configure the NI Smart Camera to acquire images based on  
internal timing or an external trigger signal. In both cases, the smart camera  
can acquire full frame images at the camera’s maximum frame rate.  
If partial scanning or binning are enabled, the smart camera can acquire  
images faster than the full frame maximum frame rate. Refer to the  
Maximum Frame Rate section for information about factors that affect the  
maximum frame rate.  
Internal Timing  
The NI Smart Camera features two types of internally-timed modes:  
free-run mode and fixed-frame-rate mode.  
In free-run mode, the smart camera acquires images at the maximum frame  
rate allowed by the configuration.  
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In fixed-frame-rate mode, you can specify a frame rate that is less than or  
equal to the maximum frame rate by setting the Frame Rate property in  
LabVIEW. Setting the Frame Rate property will implicitly take you out of  
free-run mode and into fixed-frame-rate mode. To return to free-run mode,  
set the Fixed-Frame-Rate Mode property in LabVIEW to FALSE.  
Note Vision Builder AI and MAX do not support fixed-frame-rate mode.  
External Trigger  
Use the trigger input to synchronize the NI Smart Camera with an external  
event, such as the assertion of a signal generated by a proximity sensor.  
You can trigger the smart camera at rates up the maximum frame rate.  
Refer to the Maximum Frame Rate section for information about factors  
that affect the maximum frame rate.  
To use an external trigger, the trigger signal must be provided on the  
TrigIn/IsoIn(0)+ and TrigIn/IsoIn(0)– inputs to the camera and triggering  
must be enabled in the software. Refer to the Isolated Inputs section of  
Chapter 2, Power and I/O, for information about connecting external  
signals.  
You can enable triggering in the following software programs:  
Vision Builder AI—Select the Triggered Acquisition checkbox on  
the Trigger tab of the Acquire Image (Smart Camera) step.  
LabVIEW—Use the IMAQ Configure Trigger 3 VI.  
MAX—Select the Enable Trigger checkbox on the Triggering tab of  
the smart camera configuration page.  
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Figure 5-1 illustrates the relationship between an external trigger, a lighting  
strobe, and the exposure time.  
1
Trigger  
Lighting Strobe  
Exposure  
Image Readout  
2
3
1
2
User-Configurable Trigger Delay  
Lighting Turn-On Time  
3
Beginning of Image Readout  
Figure 5-1. Externally Triggered Mode  
The trigger shown in Figure 5-1 represents an external trigger, configured  
to use the rising edge as the active edge. The time between the active edge  
of the trigger and the assertion of the lighting strobe is a user-configurable  
trigger delay. The trigger delay can be configured in either milliseconds or  
quadrature encoder counts. The NI 1722 does not support quadrature  
encoders.  
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The incoming trigger is synchronized to the line rate of the smart camera.  
This adds an additional delay that can vary on a frame by frame basis.  
The maximum variability is shown in Table 5-1.  
Table 5-1. Trigger Synchronization Variability  
Smart Camera Model  
Trigger Synchronization Variability  
NI 1722  
NI 1742  
NI 1762  
31.2 μs  
NI 1744  
NI 1764  
71.6 μs  
The amount of time required from the assertion of a trigger to the start of  
the light strobe and image exposure varies by application. For example, if  
a sensor that detects the presence of a part is positioned before the smart  
camera on a conveyor belt, a trigger delay will be necessary so that the  
smart camera waits to expose the image until the part to be inspected passes  
in front of the smart camera. In this case, specifying the trigger delay in  
terms of quadrature encoder counts allows the smart camera to expose the  
image when the part is positioned in front of the smart camera regardless of  
changes in speed of the conveyor belt. For other applications, a delay  
specified in milliseconds is sufficient.  
If you are strobing a light, there is a short delay while the lighting controller  
turns on the light. This delay is represented by the lighting turn-on time in  
Figure 5-1. Table 5-2 lists the lighting turn-on times.  
Table 5-2. Lighting Turn-On Time  
Smart Camera Model  
Lighting Turn-On Time  
NI 1722  
NI 1742  
NI 1762  
156 μs  
NI 1744  
NI 1764  
143.2 μs  
After the lighting turn-on time, the exposure begins. The width of the  
exposure pulse determines how long the sensor is exposed. The exposure  
time can be adjusted by setting the Exposure Time control in Vision  
Builder AI, setting the Exposure Time property in LabVIEW, or by setting  
the Exposure Time control in MAX. The lighting strobe deasserts at the  
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end of the exposure pulse. The end of an exposure starts the image readout  
from the sensor.  
The maximum trigger rate is determined by the maximum frame rate  
for your configuration. Refer to the Maximum Frame Rate section for  
information about the factors that affect the maximum frame rate.  
Maximum Frame Rate  
Frame rate is the inverse of the frame period. The frame period is the time  
from the start of exposure on one frame to the start of exposure on the next  
frame, as shown in Figure 5-2.  
Trigger  
Exposure  
Image Readout  
1
1
Frame Period  
The frame period is affected by the following factors:  
Partial scan mode, as described in the Partial Scan Mode section of  
Chapter 3, NI Smart Camera Image Sensor  
Binning mode, as described in the Binning section of Chapter 3,  
NI Smart Camera Image Sensor  
Exposure time, as described in the Exposure section of this chapter  
Lighting mode, as described in Chapter 4, Lighting  
Trigger delay, as described in the External Trigger section of this  
chapter  
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Determining the Maximum Frame Rate  
You can determine the maximum frame rate for your configuration in  
software by reading the Max Frame Rate indicator in Vision Builder AI,  
reading the Max Frame Rate property in LabVIEW, or reading the Max  
Frame Rate indicator in MAX. When external triggering is enabled, do not  
trigger faster than the maximum frame rate.  
Note Sending a trigger faster than the maximum frame rate will result in a missed trigger.  
Use Equation 5-2 to understand how software determines the maximum  
frame rate:  
1
------------------------------------------  
max frame rate = min max frame rate for selected scan mode,  
(5-2)  
min frame period  
where max frame rate for selected scan mode is determined by the  
partial scan mode and binning mode, as described in the  
Determining the Scan Mode section, and  
min frame period is the minimum amount of time for the strobe  
and trigger mode, as described in the Calculating the Minimum  
Frame Period section.  
Determining the Scan Mode  
The maximum frame rate for selected scan mode is determined by the  
partial scan mode and binning mode. Because the amount of data read out  
of the sensor is less in 1/2 or 1/4 scan mode, the readout takes less time, and  
you can achieve faster frame rates. The same is true of binning. When  
binning is enabled, the readout takes less time, and you can achieve faster  
frame rates. Refer to the Partial Scan Mode and Binning sections of  
Chapter 3, Image Acquisition, for more information about partial scanning  
and binning.  
Use the maximum frame rate specifications for your smart camera in your  
scan mode in Appendix A, Specifications, to determine the maximum frame  
rate for selected scan mode.  
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Image Acquisition  
Determining the Exposure Time  
The minimum frame period depends on exposure time, lighting mode, and  
trigger delay.  
A longer exposure time results in a longer frame period, and a slower  
maximum frame rate.  
Determining the Lighting Mode  
If you are not strobing a light using the Direct Drive or the external strobe  
outputs of the smart camera, the smart camera can expose one image while  
it is reading out the previous image, allowing for the highest possible frame  
rates. Figure 5-3 illustrates this relationship. The smart camera receives the  
trigger for the second image while it is still reading out the first image. The  
first image readout finishes before the second image readout begins.  
2
Trigger  
Exposure  
Image Readout  
1
3
1
2
Beginning of First Image Readout  
Beginning of Second Image Exposure  
3
Beginning of Second Image Readout  
Figure 5-3. Image Acquisition Without Strobing  
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When strobing is enabled, the smart camera waits until the image readout  
is complete before turning on the light for the next frame, as shown in  
Figure 5-4.  
1
Trigger  
Lighting Strobe  
Exposure  
Image Readout  
1
Image Readout Completes Before Lighting Strobe Asserts for Next Image  
Figure 5-4. Image Acquisition With Strobing  
Determining the Trigger Delay  
If the trigger delay is set longer than the untriggered minimum frame  
period, the trigger delay value further limits the min frame period. When  
the trigger delay is specified in milliseconds, the software includes this in  
the calculation of the maximum frame rate indicator.  
Calculating the Minimum Frame Period  
Refer to Equations 5-3 and 5-4 to calculate the minimum frame period for  
untriggered acquisitions with and without strobing.  
min frame periodNoStrobeNoTrigger = T + L + E  
(5-3)  
(5-4)  
min frame periodWithStrobeNoTrigger = T + L + E + R  
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Refer to Equations 5-5 and 5-6 to calculate the minimum frame period for  
triggered acquisitions with and without strobing.  
min frame periodNoStrobeWithTrigger = max(T + L + E, Trigger Delay) (5-5)  
min frame periodWithStrobeWithTrigger = max(T + L + E + R, Trigger Delay) (5-6)  
where T is the trigger synchronization variability,  
L is the lighting turn-on time,  
E is the exposure time, and  
R is the image readout duration.  
Tables 5-1 and 5-2 list the values for the trigger synchronization variability  
and the lighting turn-on time, respectively.  
The image readout duration varies depending on the smart camera  
configuration, as shown in Table 5-3.  
Table 5-3. Image Readout Duration  
Smart Camera Model  
Full Scan  
1/2 Scan  
1/4 Scan  
Binning  
NI 1722  
NI 1742  
NI 1762  
16.38 ms  
8.86 ms  
5.49 ms  
8.17 ms  
NI 1744  
NI 1764  
76.47 ms  
41.38 ms  
24.70 ms  
38.23 ms  
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6
LEDs and DIP Switches  
This chapter provides information about the location and functionality of  
the LED indicators and DIP switches on the NI Smart Camera.  
Understanding the LED Indicators  
Figure 6-1 shows the location of the LEDs on the NI Smart Camera.  
FAIL  
PASS  
IMG ACQ  
STATUS  
POWER  
Figure 6-1. NI Smart Camera LEDs  
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LEDs and DIP Switches  
While the NI Smart Camera initializes, the POWER LED lights solid green  
and the STATUS, IMG ACQ, PASS, and FAIL LEDs exhibit a scrolling  
pattern. When the smart camera finishes initializing, the STATUS LED  
lights solid green. If the system does not initialize within the expected  
period of time, the STATUS LED flashes a status code. Refer to the  
STATUS LED section for information about the status codes.  
The initialization scrolling pattern will last longer than usual if the smart  
camera is configured to acquire an IP address from a DHCP server but no  
DHCP server is available on the network. When acquiring an IP address  
from a DHCP server, the smart camera waits up to 60 seconds to acquire  
an IP address. If the smart camera does not receive an IP address within  
60 seconds, the device automatically restarts and tries again. The smart  
camera attempts to acquire an IP address from a DHCP server three times.  
If after the third time the smart camera has not been assigned an IP address,  
the smart camera reverts to the unconfigured state and the IP address resets  
to 0.0.0.0. The STATUS LED flashes to indicate that the smart camera is  
in an unconfigured state.  
POWER LED  
STATUS LED  
The POWER LED indicates whether the power supplied to the camera is  
adequate. The POWER LED is green while the camera is properly powered  
on. When no power is being supplied to the NI Smart Camera, the POWER  
LED is unlit. When power is first applied to the smart camera, the POWER  
LED flashes red for one second while internal systems power up. If the  
POWER LED stays red for longer than one second, it indicates that the  
voltage is out of range.  
The STATUS LED is green during normal operation. The NI Smart  
Camera indicates specific conditions by flashing the STATUS LED,  
as shown in Table 6-1.  
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Table 6-1. STATUS LED Indications  
LED  
LED  
Behavior  
Color  
Indication  
Solid  
Green  
Green  
The smart camera initialized successfully and is ready for use.  
1 Flash  
The smart camera IP address or software is unconfigured. The smart  
camera ships from the factory unconfigured. The smart camera also  
enters the unconfigured state if it is configured for DHCP and no  
DHCP server is available. Use MAX or Vision Builder AI to  
configure the smart camera. Refer to Getting Started with the  
NI 17xx Smart Camera for information about configuring the  
smart camera.  
2 Flashes  
Green  
The smart camera detects an error in the software configuration.  
The camera has automatically started up into safe mode, regardless  
of the SAFE MODE DIP switch position. This usually occurs when  
an attempt to upgrade the software is interrupted or if system files  
are deleted from the smart camera. Reinstall software on the smart  
camera. Refer to Getting Started with the NI 17xx Smart Camera for  
information about installing software on the smart camera.  
3 Flashes  
4 Flashes  
Green  
Green  
The smart camera is in safe mode because the SAFE MODE DIP  
switch is in the ON position. Refer to the Configuring DIP Switches  
section for information about the SAFE MODE DIP switch.  
The smart camera has experienced two consecutive software  
exceptions. The smart camera automatically restarts after an  
exception. After the second exception, the smart camera remains in  
the exception state, alerting you to resolve the problem. Reinstall  
software on the smart camera or contact National Instruments for  
assistance. Refer to Getting Started with the NI 17xx Smart Camera  
for information about installing software on the smart camera.  
5 Flashes  
Green  
The smart camera detects a critical error. Reinstall software on  
the smart camera or contact National Instruments for assistance.  
Refer to Getting Started with the NI 17xx Smart Camera for  
information about installing software on the smart camera.  
Flashing  
Solid  
Red  
Red  
The smart camera detects a software crash or hang.  
Contact National Instruments for assistance.  
The smart camera detects a critical firmware error. Contact National  
Instruments for assistance.  
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IMG ACQ LED  
The IMG ACQ LED briefly lights green when an image is captured and  
being continuously lit.  
If the IMG ACQ LED and the FAIL LED both flash red, it indicates that  
the NI Smart Camera has shut down because the maximum internal  
temperature was exceeded. Refer to the Thermal Considerations section of  
Chapter 8, Thermal Considerations and Mounting, for information about  
measuring the temperature of the smart camera. Refer to Appendix A,  
Specifications, for complete specifications.  
PASS LED  
FAIL LED  
The PASS LED is a green LED that is user-configurable through the  
IMAQ property node in LabVIEW or the Read/Write I/O step in Vision  
Builder AI.  
The FAIL LED is a red LED that is user-configurable through the  
Builder AI.  
If the IMG ACQ LED and the FAIL LED both flash red, it indicates that  
the NI Smart Camera has shut down because the maximum internal  
temperature was exceeded. Refer to the Thermal Considerations section of  
Chapter 8, Thermal Considerations and Mounting, for information about  
measuring the temperature of the smart camera. Refer to Appendix A,  
Specifications, for complete temperature specifications.  
Configuring DIP Switches  
This section describes the SAFE MODE, IP RESET, NO APP, and  
CONSOLE DIP switches on the NI Smart Camera. To turn on a DIP  
switch, lift the DIP switch cover and move the switch to the ON position.  
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SAFE MODE Switch  
To start the NI Smart Camera in safe mode, move the SAFE MODE switch  
to the ON position and reapply power or restart the smart camera. If the  
switch is in the ON position when the smart camera starts, the smart camera  
launches only the essential services required for updating configuration  
information and installing software. The LabVIEW Real-Time engine does  
not launch. Use safe mode to reconfigure the smart camera TCP/IP settings,  
update firmware, and to install or update the software on the smart camera.  
ON  
If the software on the smart camera is corrupted, start the smart camera in  
safe mode and update the software. To resume normal operations, move the  
SAFE MODE switch to the OFF position and reapply power or restart the  
smart camera. Refer to Getting Started with the NI 17xx Smart Camera for  
information about updating the software on the smart camera.  
The STATUS LED flashes green three times when the smart camera is in  
safe mode. Keep the SAFE MODE switch in the OFF position during  
normal operation.  
IP RESET Switch  
To clear the NI Smart Camera IP settings, move the IP RESET switch to  
the ON position and reapply power or restart the smart camera. Use the  
IP RESET switch to reset the TCP/IP settings when moving the camera  
from one subnet to another or when the current TCP/IP settings are  
otherwise invalid.  
ON  
Starting the smart camera with the IP RESET switch in the ON position  
resets the IP address to 0.0.0.0. Once you have reset the IP address,  
you can set up a new network configuration for the smart camera from a  
development machine on the same subnet, or you can use an Ethernet cable  
to connect the smart camera directly to the development computer. Refer to  
Getting Started with the NI 17xx Smart Camera for information about  
assigning an IP address to the smart camera.  
To resume normal operations, move the IP RESET switch to the OFF  
position and reapply power or restart the smart camera. Keep the IP RESET  
switch in the OFF position during normal operation.  
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NO APP Switch  
Move the NO APP switch to the ON position to prevent a startup  
application from running when the NI Smart Camera powers on. If you  
want to permanently disable the application from running when the smart  
camera powers on, you can disable the startup application in software.  
ON  
To automatically run an application when the smart camera powers on,  
keep the NO APP switch in the OFF position. You must configure the  
application in software to automatically run when the smart camera powers  
on. Refer to the LabVIEW Real-Time Module Help for more information  
about automatically launching VIs when the smart camera powers on.  
Refer to the NI Vision Builder for Automated Inspection: Configuration  
Help for more information about configuring remote target options.  
Keep the NO APP switch in the OFF position during normal operation.  
CONSOLE Switch  
With a serial port terminal program, you can use the CONSOLE switch to  
read device information from the NI Smart Camera during startup, such as  
the IP address and firmware version. When the CONSOLE switch is in the  
ON position, the serial port outputs device information and is not available  
for applications. The smart camera reads this switch only when powering  
up or restarting and will only display device information during startup.  
ON  
camera serial port and NI-Serial driver software to send and receive serial  
data. The NI-Serial software is installed when you install NI-IMAQ. When  
using the NI-Serial driver, keep the CONSOLE switch in the OFF position  
during normal operation.  
Refer to the Connecting to Serial Devices section of Chapter 2, Power and  
I/O, for more information about using serial communication with the smart  
camera.  
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Ethernet Ports  
This chapter provides information about the Ethernet ports and Ethernet  
LEDs on the NI Smart Camera and considerations for assigning an  
IP address.  
The Ethernet ports on the smart camera provide a connection between the  
smart camera and the development computer or other network devices. The  
smart camera provides two 10/100/1,000 Mbps Ethernet ports. Figure 7-2  
shows the Ethernet ports on the smart camera.  
1
1
2
2
1
Port 1  
2
Port 2  
Figure 7-1. NI Smart Camera Ethernet Ports  
Port 1 is the primary port and port 2 is the secondary port. The primary port  
can be configured to acquire an IP address from a DHCP server. The  
secondary port can only be configured for a static IP address.  
Both Ethernet ports of the smart camera can connect to a 10, 100, or  
1,000 Mbps (1 Gbps) Ethernet network at either full or half duplex. The  
smart camera automatically detects the speed and duplex capabilities of its  
link partner and configures for the fastest common interface. The smart  
camera can also perform auto-crossover, allowing the use of straight or  
crossover Ethernet cables, independent of the connection configuration.  
When shielded Ethernet cables are being used, ensure that the shields on the  
Ethernet cables and the POWER-I/O cable do not contact each other to  
maintain full Ethernet signal integrity.  
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Ethernet Ports  
Note A CAT 5e or CAT 6 1000Base-T Ethernet cable is required to achieve maximum  
1,000 Mbps (Gigabit) Ethernet performance. CAT 5e and CAT 6 Ethernet cables adhere to  
higher electrical standards required for Gigabit Ethernet communication. CAT 5 cables are  
not guaranteed to meet necessary electrical requirements. While CAT 5 cables may appear  
to work in some installations at 1,000 Mbps, CAT 5 cables are likely to cause increased bit  
errors resulting in degraded or unreliable network performance.  
Ethernet LEDs  
Figure 7-2 shows the Ethernet LEDs on the NI Smart Camera.  
1
2
1
2
3
4
1
2
Port 1 ACTIVITY/LINK LED  
Port 1 SPEED LED  
3
4
Port 2 ACTIVITY/LINK LED  
Port 2 SPEED LED  
Figure 7-2. NI Smart Camera Ethernet LEDs  
ACTIVITY/LINK LED  
The ACTIVITY/LINK LED indicates whether a link is established  
between the NI Smart Camera and the device connected at the other end of  
the Ethernet cable. The LED is unlit when no cable is connected or if the  
smart camera or the device connected at the other end of the cable are  
powered down. The LED is solid green when a link is established, but there  
is no traffic activity on the link. The LED will flash green when there is  
traffic activity on the link. If the smart camera is connected to a corporate  
network, traffic that is not related to the smart camera traffic will often be  
present on the link. In dedicated links between a computer and the smart  
camera, typically the only traffic on the link will be the communication  
between the computer and the smart camera.  
SPEED LED  
The SPEED LED indicates the speed of the negotiated link. The NI Smart  
Camera supports 10 Mbps, 100 Mbps, and 1,000 Mbps (1 Gbps) links, and  
will automatically select the highest speed shared by the smart camera and  
the device it is connected to. The SPEED LED follows the behavior  
specified in Table 7-1.  
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Table 7-1. SPEED LED Behavior  
SPEED LED Behavior  
Off  
Indication  
No link or a 10 Mbps link is negotiated  
A 100 Mbps link is negotiated  
Solid Green  
Solid Amber  
A 1,000 Mbps link is negotiated  
DHCP and Static IP Address Assignment  
You must configure the IP settings for the NI Smart Camera prior to use.  
You can assign a static IP address or, if your network has a DHCP server,  
you can use a DHCP server to assign an IP address. If you do not know  
whether you should assign a static IP address or use a DHCP server to  
assign an IP address, assign a static IP address or contact your network  
administrator.  
DCHP IP address assignment is only available for port 1. Static IP address  
assignment is available on both ports.  
For information about assigning an IP address to the smart camera, refer to  
Getting Started with the NI 17xx Smart Camera.  
The advantage of using a DHCP server to assign an IP address is that the  
DHCP server manages the IP addresses of the network. You do not need to  
know the IP address of the smart camera. Also, the DHCP server does not  
allow other devices to use the IP address that is already assigned to your  
smart camera.  
Although using a DHCP server makes configuring an IP address easy,  
configuring a static IP address can be more reliable. Consider the following  
potential issues before using a DHCP server to assign an IP address to the  
smart camera:  
If the network has both static IP addresses and IP addresses managed  
by a DHCP server, the DHCP server must be configured to not use  
reserved static IP addresses. If the DHCP server is not configured this  
way, the DHCP server can assign a reserved IP address to another  
device, causing address conflicts on the network, which results in some  
devices being unreachable.  
When a smart camera configured for DHCP starts, it must be able  
to connect to the DHCP server. If a smart camera was previously  
configured to use a DHCP server and the smart camera cannot connect  
© National Instruments Corporation  
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Chapter 7  
Ethernet Ports  
to the DHCP server, the smart camera does not appear in MAX or  
Vision Builder AI. The IP address must to be reconfigured before you  
can use the smart camera.  
Firewall Considerations  
If you are having difficulty detecting the system and setting up the NI Smart  
Camera on your network, you must configure the firewall to open the  
TCP/UDP ports used by the smart camera and the host machine. The smart  
camera uses the ports listed in Table 7-2.  
Table 7-2. TCP/UDP Ports Used by the NI Smart Camera  
Port  
Type  
Details  
3580  
TCP/UDP Reserved as nati-svrloc (NAT-ServiceLocator). Used by Measurement  
& Automation Explorer (MAX) to locate remote targets.  
7749  
7750  
3363  
TCP  
TCP  
Used for remote image display (not reserved).  
Used for NI-IMAQ remote configuration (not reserved).  
TCP/UDP Reserved as nati-vi-server (NATI VI Server). Used by Vision Builder  
for Automated Inspection to configure a remote NI Smart Camera.  
Subnet Considerations  
To configure the NI Smart Camera, it must reside on the same subnet as the  
development computer. If you want to use the smart camera on a subnet  
other than the one the development computer is on, first connect and  
configure the smart camera on the same subnet as the host computer.  
The first time you configure the smart camera, you must also install  
software on it. After configuring the smart camera, use DHCP to assign an  
IP address or reassign a static IP address for the subnet where you want the  
smart camera to reside, then physically move the smart camera to the other  
subnet. Refer to Getting Started with the NI 17xx Smart Camera for more  
information about configuring the smart camera.  
Contact your network administrator if you need assistance configuring the  
host computer and smart camera on the same subnet.  
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8
Thermal Considerations and Mounting  
This chapter contains information about the operating temperature of the  
NI Smart Camera and provides the information necessary to create a  
custom mount for the smart camera.  
Thermal Considerations  
The NI Smart Camera can operate in environments with ambient  
temperatures ranging from 0 to 45 °C. The maximum housing temperature  
of the smart camera is 65 °C. Refer to Appendix A, Specifications, for  
complete specifications. Figure 8-1 shows the location to take temperature  
measurements on the smart camera.  
1
-
+
GND  
5V  
24V  
NI 17XX SMART CAMERA  
1
Region to Measure NI Smart Camera Housing Temperature  
Figure 8-1. Measuring the NI Smart Camera Housing Temperature  
© National Instruments Corporation  
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NI 17xx Smart Camera User Manual  
 
               
Chapter 8  
Thermal Considerations and Mounting  
Operating the smart camera above the specified ambient temperature or  
above the specified case temperature will degrade image quality and can  
cause permanent damage to the device.  
The smart camera also has a internal temperature sensor that provides an  
internal temperature measurement. You can monitor the temperature sensor  
from LabVIEW using the Status Information»Temperature property  
from the IMAQ property node.  
If the internal temperature sensor reads 70 °C or more, the smart camera  
immediately halts operation and becomes unresponsive. The IMG ACQ  
LED and the FAIL LED flash red. You must remove and reapply power to  
the smart camera to recover from this condition.  
To maximize the cooling efficiency of the smart camera, mount it to a  
thermally conductive structure, as specified in the Mounting the NI Smart  
Camera section.  
Mounting the NI Smart Camera  
Caution If you choose not to mount the NI Smart Camera to a thermally conductive  
structure, do not position the smart camera with the heat sinks resting on any surface.  
Doing so may violate the thermal requirements of the smart camera and cause the smart  
camera to overheat. Refer to Appendix A, Specifications, for temperature specifications.  
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Chapter 8  
Thermal Considerations and Mounting  
Figures 8-2 through 8-5 provide the dimensional drawings necessary to  
create a custom mount for the smart camera.  
95.75 mm  
(3.770 in.)  
47.00 mm  
(1.850 in.)  
60.58 mm 85.80 mm  
(2.385 in.) (3.378 in.)  
23.50 mm  
(0.925 in.)  
Optical Axis  
24.25 mm  
(0.955 in.)  
Optical Axis  
Figure 8-2. Back View of the NI Smart Camera with Dimensions  
30.89 mm  
(1.216 in.)  
32.80 mm  
(1.291 in.)  
38.91 mm  
(1.532 in.)  
Figure 8-3. Front View of the NI Smart Camera with Dimensions  
© National Instruments Corporation  
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Chapter 8  
Thermal Considerations and Mounting  
117.66 mm  
(4.632 in.)  
44.14 mm  
(1.738 in.)  
50.62 mm  
(1.993 in.)  
Figure 8-4. Side View of the NI Smart Camera with Dimensions  
33.12 mm  
(1.304 in.)  
20.71 mm  
(0.815 in.)  
21.41 mm  
(0.843 in.)  
24.78 mm  
(0.975 in.)  
25.45 mm  
(1.002 in.)  
27.86 mm  
(1.097 in.)  
13.84 mm  
(0.545 in.)  
Optical Axis  
Figure 8-5. Bottom View of the NI Smart Camera with Dimensions  
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A
Specifications  
The following specifications apply to the NI 1722/1742/1744/1762/1764  
Smart Camera. These specifications are typical at 25 °C, unless otherwise  
stated.  
Power Requirements  
Power consumption  
NI 1722 ........................................... 24 VDC, +20%/–15%  
(IEC 1311); 450 mA  
NI 1742/1744/1762/1764  
Direct Drive disabled............... 24 VDC, +20%/–15%  
(IEC 1311); 450 mA  
Direct Drive enabled................ 24 VDC, +20%/–15%  
(IEC 1311); 800 mA  
Reverse polarity protection .................... Yes  
Memory  
SDRAM ................................................. 128 MB  
Nonvolatile program/data memory ........ 128 MB  
Image/data storage ................................. Unlimited using FTP or  
an Ethernet hard drive  
Processor  
NI 1722 .................................................. Freescale PowerQUICC II Pro  
400 MHz  
NI 1742/1744 ......................................... Freescale PowerQUICC II Pro  
533 MHz  
NI 1762/1764 ......................................... Freescale PowerQUICC II Pro  
533 MHz and Texas Instruments  
DSP 720 MHz  
© National Instruments Corporation  
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NI 17xx Smart Camera User Manual  
 
     
Appendix A  
Specifications  
VGA Sensor (NI 1722/1742/1762 Only)  
Sensor .....................................................Sony CCD ICX424AL  
Active pixels (VGA)  
Full scan...........................................640 × 480  
1/2 scan............................................640 × 240  
1/4 scan............................................640 × 120  
Binning (1 × 2) ................................640 × 240  
Pixel size.................................................7.4 μm × 7.4 μm  
Pixel pitch for field of view calculation  
Full scan, 1/2 scan, 1/4 scan............7.4 μm horizontal,  
7.4 μm vertical  
Binning (1 × 2) ................................7.4 μm horizontal,  
14.8 μm vertical  
Maximum frame rate1  
Full scan...........................................Up to 60 fps  
1/2 scan............................................Up to 109 fps  
1/4 scan............................................Up to 175 fps  
Binning (1 × 2) ................................Up to 114 fps  
Optical format.........................................1/3 in.  
Sensor readout ........................................Progressive scan  
Bits per pixel...........................................8 bits; 256 gray levels  
Minimum exposure time.........................36.28 μs  
Exposure time increment........................31.2 μs  
1
Refer to the Maximum Frame Rate section of Chapter 5, Image Acquisition, for more information about calculating the  
maximum frame rate for your application.  
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Appendix A  
Specifications  
Spectral characteristics........................... Refer to Figure A-1  
1.0  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
400  
500  
600  
700  
800  
900  
1000  
Wavelength (nm)  
Figure A-1. VGA Sensor Spectral Response Curve  
Gamma................................................... 1.0 fixed  
SXGA Sensor (NI 1744/1764 Only)  
Sensor..................................................... Sony CCD ICX205AL  
Active pixels (SXGA)  
Full scan.......................................... 1,280 × 1,024  
1/2 scan ........................................... 1,280 × 512  
1/4 scan ........................................... 1,280 × 256  
Binning (1 × 2)................................ 1,280 × 512  
Pixel size ................................................ 4.65 μm × 4.65 μm  
Pixel pitch  
Full scan, 1/2 scan, 1/4 scan ........... 4.65 μm horizontal,  
4.65 μm vertical  
Binning (1 × 2)................................ 4.65 μm horizontal,  
9.3 μm vertical  
© National Instruments Corporation  
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Appendix A  
Specifications  
Maximum frame rate1  
Full scan...........................................Up to 13 fps  
1/2 scan............................................Up to 23 fps  
1/4 scan............................................Up to 39 fps  
Binning (1 × 2) ................................Up to 26 fps  
Optical format.........................................1/2 in.  
Sensor readout ........................................Progressive scan  
Bits per pixel...........................................8 bits; 256 gray levels  
Minimum exposure time.........................76.68 μs  
Exposure time increment........................71.6 μs  
Spectral characteristics ...........................Refer to Figure A-2  
1.0  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
0.3  
0.2  
0.1  
0
400  
500  
600  
700  
800  
900  
1000  
Wavelength (nm)  
Figure A-2. SXGA Sensor Spectral Response Curve  
Gamma....................................................1.0 fixed  
1
Refer to the Maximum Frame Rate section of Chapter 5, Image Acquisition, for more information about calculating the  
maximum frame rate for your application.  
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Appendix A  
Specifications  
Lighting  
Direct Drive lighting controller (NI 1742/1744/1762/1764 Only)  
Maximum current ........................... 500 mA continuous; 1 A strobed  
Minimum current ............................ 50 mA  
Light requirements  
Maximum voltage drop across  
LED+/LED– terminals ............ 30 V, with 10% input power  
supply 25 V, with +20%/–15%  
input power supply  
Minimum voltage drop across  
LED+/LED– terminals ............ 7 V  
Strobe frequency............................. Operating frame rate  
Maximum strobe duty cycle ........... 45%  
5 V external strobe  
Polarity............................................ Programmable  
Strobe frequency............................. Operating frame rate  
V
V
OH minimum................................. 3.8 V  
OL maximum................................. 0.55 V  
I
OH maximum.................................. –12 mA  
OL maximum .................................. 12 mA  
I
24 V external strobe  
Polarity............................................ Active high  
Strobe frequency............................. Operating frame rate  
ON state  
Voltage..................................... Unregulated output drawn from  
the smart camera power supply  
Current..................................... 16 mA, maximum  
OFF state  
Voltage..................................... Not driven  
Current..................................... Not applicable  
Network  
Network interface................................... Ethernet  
Ports ....................................................... 2  
© National Instruments Corporation  
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Appendix A  
Specifications  
Speed ......................................................10; 100; 1,000 Mbps  
Duplex ....................................................Full, half  
Speed autodetection................................Yes  
Duplex autodetection..............................Yes  
Auto MDI/MDI-X correction .................Yes  
DHCP Support........................................Port 1 only  
Serial  
Baud rates ...............................................Up to 230.4 Kbps  
Default baud rate .............................9,600 bps  
Hardware flow control............................No  
Optically Isolated Inputs and Outputs  
Isolated Inputs  
Channels .................................................2  
Input type................................................Sinking/sourcing, both inputs  
must have the same configuration  
Digital logic levels  
OFF state  
Input current.............................0 mA to 0.1 mA  
Input voltage.............................0 V to 1 V  
ON state  
Input current.............................3 mA to 5.4 mA  
Input voltage.............................20 V to 30 V  
Minimum pulse width.............................1 ms  
Isolated Outputs  
Channels .................................................2  
Output type .............................................Sinking/sourcing,  
independently configurable  
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Appendix A  
Specifications  
External load power supply range.......... 19 V to 30 V  
Output current ........................................ 100 mA, maximum per channel  
Quadrature Encoder (NI 1742/1744/1762/1764 Only)  
Encoder type .......................................... Differential, RS-422;  
phase A/phase B, no index  
Physical Characteristics  
Lens mount............................................. C-mount  
Camera housing...................................... Painted die-cast aluminium  
Dimensions............................................. 11.77 cm × 8.58 cm × 5.06 cm  
(4.63 in. × 3.38 in. × 1.99 in.)  
Weight.................................................... 525 g (18.52 oz)  
Environmental  
The NI Smart Camera is intended for indoor use only.  
Operating temperature  
Ambient temperature ...................... 0 to 45 °C  
Maximum camera  
housing temperature........................ 65 °C  
Humidity ................................................ 10% to 90% RH, noncondensing  
IP rating.................................................. 40  
Pollution degree ..................................... 2  
Operating shock (IEC 60068-2-27)........ 50 g, 3 ms half sine, 18 shocks at  
6 orientations; 30 g, 11 ms half  
sine, 18 shocks at 6 orientations  
Operating vibration  
Random (IEC 60068-2-34) ............. 10 Hz to 500 Hz, 10 Grms,  
100 min per axis  
Swept sine (IEC 60068-2-6) ........... 10 Hz to 500 Hz, 10 g  
Approved at altitudes up to 2,000 m.  
© National Instruments Corporation  
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Appendix A  
Specifications  
Safety  
The NI Smart Camera meets the requirements of the following standards  
for safety and electrical equipment for measurement, control, and  
laboratory use:  
IEC 61010-1, EN 61010-1  
UL 61010-1, CSA 61010-1  
Note For UL and other safety certifications, refer to the product label or visit ni.com/  
certification, search by model number or product line, and click the appropriate link  
in the Certification column.  
Electromagnetic Compatibility  
The NI Smart Camera meets the following standards of EMC for electrical  
equipment for measurement, control, and laboratory use:  
EN 61326 EMC requirements; Minimum Immunity  
EN 55011 Emissions; Group 1, Class A  
CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A  
Note For full EMC compliance, operate this device with shielded cabling.  
CE Compliance  
The NI Smart Camera meets the essential requirements of applicable  
European Directives, as amended for CE marking, as follows:  
2006/95/EC; Low-Voltage Directive (safety)  
2004/108/EC; Electromagnetic Compatibility Directive (EMC)  
Note Refer to the Declaration of Conformity (DoC) for this product for any additional  
regulatory compliance information. To obtain the DoC for this product, visit ni.com/  
certification, search by model number or product line, and click the appropriate link  
in the Certification column.  
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Appendix A  
Specifications  
Environmental Management  
National Instruments is committed to designing and manufacturing  
products in an environmentally responsible manner. NI recognizes that  
eliminating certain hazardous substances from our products is beneficial  
not only to the environment but also to NI customers.  
For additional environmental information, refer to the NI and the  
Environment Web page at ni.com/environment. This page contains the  
environmental regulations and directives with which NI complies, as well  
as other environmental information not included in this document.  
Waste Electrical and Electronic Equipment (WEEE)  
EU Customers At the end of their life cycle, all products must be sent to a WEEE recycling  
center. For more information about WEEE recycling centers and National Instruments  
WEEE initiatives, visit ni.com/environment/weee.htm.  
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National Instruments  
(RoHS)  
Ё೑  
ড়㾘ᗻֵᙃˈ䇋ⱏᔩ ni.com/environment/rohs_chinaDŽ  
RoHS  
ni.com/environment/rohs_china  
(For information about China RoHS compliance, go to  
.)  
© National Instruments Corporation  
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NI 17xx Smart Camera User Manual  
 
B
Troubleshooting  
This appendix provides instructions for troubleshooting the NI Smart  
Camera.  
Configuration Problems  
The NI Smart Camera Does Not Appear in MAX or Vision Builder AI  
Possible causes and solutions:  
The smart camera may not be powered. Verify that there is power to  
the smart camera and that both the smart camera and the development  
should be lit green and the ACTIVITY/LINK LED should flash green  
when refreshing the list of devices in MAX or Vision Builder AI.  
The smart camera may have been configured on another network  
subnet and then moved to the current network subnet. Reconfigure  
the smart camera on the current network. Refer to the Subnet  
Considerations section of Chapter 7, Ethernet Ports, for more  
information.  
Another device on the network is using the IP address assigned to the  
smart camera. This can happen when you assign the same static IP to  
available for DHCP use on your network, or the DHCP server assigns  
the same IP address to another device. Either remove or reconfigure  
the other device, or reconfigure the smart camera to use a different  
IP address by moving the IP RESET DIP switch to the ON position  
and reapplying power or restarting the smart camera. Refer to the  
for more information.  
You are experiencing firewall issues. If you are having difficulty  
detecting the system and setting up the NI Smart Camera on your  
network, you must configure the firewall to open the TCP/UDP ports  
used by the smart camera and the host machine. Refer to the Firewall  
Considerations section of Chapter 7, Ethernet Ports, for more  
information about TCP/UDP ports.  
© National Instruments Corporation  
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NI 17xx Smart Camera User Manual  
 
     
Appendix B  
Troubleshooting  
The cable you are using may be inappropriate for the speed of your  
network, causing network communication dropout. While 1,000 Mbps  
communication over short cables lengths can be achieved with the  
CAT5 cable commonly used for 10 and 100 Mbps, CAT5e and CAT6  
cables are more reliable and recommended for 1,000 Mbps links. The  
smart camera has the ability to perform auto-crossover, allowing the  
use of straight or crossover Ethernet cables, independent of the  
connection configuration.  
The NI Smart Camera Restarts Unexpectedly  
Possible causes and solutions:  
The smart camera is configured to acquire an IP address from a DHCP  
server, but no DHCP server is available on the network. When the  
smart camera is configured to acquire an IP address from a DHCP  
server, it waits for up to 60 seconds for the IP address to be acquired  
successfully. If the smart camera does not receive an IP address within  
60 seconds, it restarts and attempts to acquire an IP address again.  
After three unsuccessful attempts to acquire an IP address from a  
DHCP server, the smart camera restarts and enters an unconfigured  
state. In the unconfigured state, the smart camera has an IP address of  
0.0.0.0and only limited software loads.  
In the unconfigured state, the smart camera has network connectivity.  
If the smart camera is on the same subnet as the host computer, then  
refreshing the list of remote devices in MAX or Vision Builder AI will  
cause the smart camera to appear with an IP address of 0.0.0.0. Use  
MAX or Vision Builder AI to reconfigure the smart camera IP address,  
then restart the smart camera.  
Refer to Getting Started with the NI 17xx Smart Camera for more  
information about assigning an IP address to the smart camera.  
The smart camera has detected an error in the software configuration  
and automatically restarted into safe mode, independent of the state of  
the SAFE MODE DIP switch. This usually occurs when an attempt to  
upgrade the software is interrupted or if system files are deleted from  
the smart camera by the user. Reinstall software on the smart camera.  
Refer to Getting Started with the NI 17xx Smart Camera for  
information about installing software on the smart camera.  
The smart camera experienced two consecutive software exceptions.  
The smart camera automatically restarts after an exception. After the  
second exception, the smart camera remains in the exception state,  
alerting you to resolve the problem. To correct this issue, reinstall  
software on the smart camera. Refer to Getting Started with the  
NI 17xx Smart Camera User Manual  
B-2  
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Appendix B  
Troubleshooting  
NI 17xx Smart Camera for information about installing software on  
the smart camera or contact National Instruments for assistance.  
In the event that the Direct Drive lighting controller detects an  
abnormal load condition, such as a short circuit on the LED+ output,  
the smart camera stops image acquisition and returns an error. The  
Direct Drive stops providing current to the light, and the smart camera  
may restart. Ensure that your lighting wire connections are correct  
and/or reconfigure your lighting settings in MAX or Vision Builder AI.  
The voltage drop of the light may have exceeded the maximum voltage  
or minimum voltage requirements of the smart camera. The voltage  
drop of a light can vary significantly with environmental conditions,  
such as temperature, current, and strobe time. Verify that the voltage  
drop across the LED+ and LED– terminals is within the specified  
range of the smart camera. Your light may need to be reconfigured by  
the manufacturer to bring the voltage drop within the specified range  
of the smart camera. Refer to Appendix A, Specifications, for more  
information.  
The smart camera ran out of memory. The reason may be that acquired  
images are still in memory. When developing applications with  
LabVIEW, use the IMAQ Dispose VI to destroy an image and free the  
space it occupied in memory. This VI is required for each image  
created in an application to free the memory allocated to the IMAQ  
Create VI. Execute the IMAQ Dispose VI only when the image is no  
longer needed in your application. You can configure the IMAQ  
Dispose VI to free memory for each call to the IMAQ Create VI or just  
once for all images created using the IMAQ Create VI.  
Run-Time Problems  
The NI Smart Camera is Unresponsive and Blinks the IMG ACQ and  
FAIL LEDs  
The smart camera maximum internal temperature was exceeded. Complete  
the following steps to verify that the ambient and enclosure temperatures  
are within specifications.  
1. Measure the ambient temperature and verify that it is within  
specifications.  
Note If the smart camera is mounted within an enclosure, the ambient temperature of the  
camera is the temperature inside the enclosure, which can be notably warmer than the  
ambient temperature outside the enclosure.  
© National Instruments Corporation  
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Appendix B  
Troubleshooting  
2. Measure the smart camera housing temperature at the location  
indicated in Figure 8-1, Measuring the NI Smart Camera Housing  
Temperature, and verify that it is within specifications.  
You must remove power, bring the temperature within specifications, and  
reapply power to the smart camera to recover from this condition. Refer to  
the Thermal Considerations section of Chapter 8, Thermal Considerations  
and Mounting, for information about measuring the temperature of the  
smart camera. Refer to Appendix A, Specifications, for complete  
temperature specifications.  
Lighting Problems  
The Light Does Not Illuminate When Using the Direct Drive Controller  
In the event that your light does not illuminate, verify the following:  
That your NI Smart Camera supports the Direct Drive lighting  
controller. Refer to the Direct Drive Lighting Controller section of  
Chapter 4, Lighting, for a list of smart cameras that support the Direct  
Drive lighting controller.  
The light is wired with the correct polarity, LED+ pin to the anode and  
LED– pin to cathode.  
You have properly configured the maximum light settings in MAX or  
Vision Builder AI. For safety reasons, the default configuration of the  
smart camera does not enable lighting until you configure the  
maximum lighting current settings that are appropriate for your light.  
You have enabled the Direct Drive lighting controller in MAX or  
The smart camera is receiving a trigger if you have configured the  
smart camera for triggering in MAX or Vision Builder AI. This can be  
verified by checking that the IMG ACQ LED on the smart camera  
illuminates when a trigger is provided on the TrigIn+/IsoIn(0)+ and  
TrigIn–/IsoIn(0)– pins. If you are not receiving a trigger, refer to the  
No Trigger is Received troubleshooting section.  
There is a short circuit wiring condition. If the smart camera detects a  
short circuit wiring condition, it will disable the Direct Drive until the  
condition is cleared and the acquisition is reinitialized.  
In the event that the Direct Drive lighting controller detects an  
abnormal load condition, such as a short circuit on the LED+ output,  
the smart camera stops image acquisition and returns an error. The  
Direct Drive stops providing current to the light, and the smart camera  
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Appendix B  
Troubleshooting  
may restart. Ensure that your lighting wire connections are correct  
and/or reconfigure your lighting settings in MAX or Vision Builder AI.  
You have requested an amount of current within the specified range  
of the smart camera and within the maximum lighting current settings  
you configured in MAX or Vision Builder AI. If your application  
requests more current than either of these two options, the smart  
camera disables the Direct Drive until an allowable current level is  
requested and the acquisition is reinitialized.  
If you are strobing, the on time required to illuminate for your  
requested exposure time plus the lighting turn-on time does not exceed  
the maximum allowed strobe duration. Refer to Chapter 5, Image  
Acquisition, for more information.  
If you are strobing, the duty cycle does not exceed the maximum  
allowed duty cycle at your requested frame rate. Refer to Chapter 5,  
Image Acquisition, for more information.  
The on voltage of the light is within the specifications of the Direct  
Drive lighting controller. Refer to Appendix A, Specifications, for  
more information.  
The voltage drop of the light may have exceeded the maximum voltage  
or minimum voltage requirements of the smart camera. The voltage  
drop of a light can vary significantly with environmental conditions,  
such as temperature, current, and strobe time. Verify that the voltage  
drop across the LED+ and LED– terminals is within the specified  
range of the smart camera. Your light may need to be reconfigured by  
the manufacturer to bring the voltage drop within the specified range  
of the smart camera. Refer to Appendix A, Specifications, for more  
information.  
There is No External Lighting Strobe  
Possible causes and solutions:  
If you have configured the NI Smart Camera for triggering in MAX or  
Vision Builder AI, verify that the smart camera is receiving a trigger.  
This can be verified by checking that the IMG ACQ LED on the smart  
camera illuminates when a trigger is provided on the TrigIn+/IsoIn(0)+  
and TrigIn–/IsoIn(0)– pins. If you are not receiving a trigger, refer to  
the No Trigger is Received troubleshooting section.  
If you are using the 24 V strobe output, verify that there is enough time  
between frames for the strobe output to fully turn off before being  
re-enabled. The required time will vary with the load conditions, but is  
typically a few milliseconds. If a faster response is necessary, use the  
5 V strobe output.  
© National Instruments Corporation  
B-5  
NI 17xx Smart Camera User Manual  
 
Appendix B  
Troubleshooting  
Make sure that you have enabled the corresponding external lighting  
strobe in MAX or Vision Builder AI. Complete one of the following  
procedures to enable the correct lighting strobe.  
MAX  
1. Launch MAX.  
2. In the Configuration tree, expand Devices and Interfaces.  
3. Expand NI-IMAQ Devices.  
4. Expand the smart camera you are using.  
5. Select the channel you are using.  
6. Select the Lighting tab.  
7. Select the appropriate strobe from the External Strobe Generation  
control.  
Vision Builder AI  
1. Launch Vision Builder AI.  
2. In the Acquire Image (Smart Camera) step, select the Lighting tab.  
3. Select the appropriate strobe from the External Strobe Generation  
control.  
Triggering Problems  
No Trigger is Received  
If you are not receiving a trigger, verify the following:  
The trigger is wired to the TrigIn+/IsoIn(0)+ and TrigIn–/IsoIn(0)–  
signals.  
If TrigIn/IsoIn(0) and IsoIn(1) are both being used, that the devices  
they are connected to are either both sinking (NPN) or both sourcing  
(PNP).  
The trigger is connected correctly based on the type of sensor it  
is—sourcing or sinking. Refer to the Isolated Inputs section of  
Chapter 2, Power and I/O, for information about connecting isolated  
inputs.  
The sensor power supply is of appropriate voltage for interfacing to  
NI Smart Camera isolated inputs. Refer to the Isolated Inputs section  
of Chapter 2, Power and I/O, for information about isolated inputs.  
Refer to Appendix A, Specifications, for complete specifications.  
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Appendix B  
Troubleshooting  
You configured the device in MAX or Vision Builder AI to expect a  
trigger. Refer to the External Trigger section of Chapter 5, Image  
Acquisition, for information about configuring an external trigger.  
LED Error Indications  
STATUS LED Error Conditions  
The NI Smart Camera indicates specific error conditions by flashing the  
STATUS LED a specific number of times. Refer to the STATUS LED  
section of Chapter 6, LEDs and DIP Switches, for the STATUS LED  
flashing sequences and the corresponding error condition.  
POWER LED is Not Lit When the NI Smart Camera is Powered On  
If the power supply is properly connected to the smart camera, but the  
POWER LED does not light up, check that the power supply is 24 V  
+20%/–15% and within the specifications outlined in Appendix A,  
Specifications. Verify that the power supply can supply enough current for  
the smart camera model in use. Using a power supply that is not within  
these specifications might result in an unresponsive or unstable system and  
could damage the smart camera.  
Caution The 24 V external lighting strobe is an unregulated output dependent on the range  
of the power supply provided to the smart camera. If the power provided to the smart  
camera is +20%/–15% with +5% AC ripple, the output could be as high as 30 V. If the  
provided power exceeds the input voltage specifications of the third-party lighting  
controller, do not connect the 24 V lighting strobe output to the controller to prevent  
damage to the controller. Use a power supply with tolerances that meet the requirements  
of the controller, or use the 5 V external lighting strobe.  
© National Instruments Corporation  
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NI 17xx Smart Camera User Manual  
 
 
C
Maintenance  
Do not touch the CCD sensor by hand or with other objects. The sensor  
can be damaged by electrostatic discharge (ESD), body oils, and particulate  
matter.  
Use a lens mount cover whenever a lens is not mounted on the camera to  
protect the sensor from dust and dirt.  
Avoid drastic temperature changes to prevent dew condensation.  
When necessary, use the following procedure to clean the sensor at a  
workstation equipped with anti-ESD facilities. If dust sticks to the CCD,  
first attempt to blow it off from the side of the sensor using ionized air.  
If oils are present on the sensor, clean the sensor with a cotton bud and ethyl  
alcohol. Be careful not to scratch the glass. Use only one pass over the glass  
per cotton bud to minimize the risk of recontamination and scratching.  
© National Instruments Corporation  
C-1  
NI 17xx Smart Camera User Manual  
 
 
D
Technical Support and  
Professional Services  
Visit the following sections of the award-winning National Instruments  
Web site at ni.comfor technical support and professional services:  
Support—Technical support resources at ni.com/supportinclude  
the following:  
Self-Help Technical Resources—For answers and solutions,  
visit ni.com/supportfor software drivers and updates, a  
searchable KnowledgeBase, product manuals, step-by-step  
troubleshooting wizards, thousands of example programs,  
tutorials, application notes, instrument drivers, and so on.  
Registered users also receive access to the NI Discussion Forums  
at ni.com/forums. NI Applications Engineers make sure every  
question submitted online receives an answer.  
Standard Service Program Membership—This program  
entitles members to direct access to NI Applications Engineers  
via phone and email for one-to-one technical support as well as  
exclusive access to on demand training modules via the Services  
Resource Center. NI offers complementary membership for a full  
year after purchase, after which you may renew to continue your  
benefits.  
For information about other technical support options in your  
area, visit ni.com/services, or contact your local office at  
ni.com/contact.  
Training and Certification—Visit ni.com/trainingfor  
self-paced training, eLearning virtual classrooms, interactive CDs,  
and Certification program information. You also can register for  
instructor-led, hands-on courses at locations around the world.  
System Integration—If you have time constraints, limited in-house  
technical resources, or other project challenges, National Instruments  
Alliance Partner members can help. To learn more, call your local  
NI office or visit ni.com/alliance.  
© National Instruments Corporation  
D-1  
NI 17xx Smart Camera User Manual  
 
                   
Appendix D  
Technical Support and Professional Services  
Declaration of Conformity (DoC)—A DoC is our claim of  
compliance with the Council of the European Communities using  
the manufacturer’s declaration of conformity. This system affords  
the user protection for electromagnetic compatibility (EMC) and  
product safety. You can obtain the DoC for your product by visiting  
ni.com/certification.  
If you searched ni.comand could not find the answers you need, contact  
your local office or NI corporate headquarters. Phone numbers for our  
worldwide offices are listed at the front of this manual. You also can visit  
the Worldwide Offices section of ni.com/niglobalto access the branch  
office Web sites, which provide up-to-date contact information, support  
phone numbers, email addresses, and current events.  
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Glossary  
Symbol  
Prefix  
pico  
Value  
10–12  
10–9  
10– 6  
10–3  
103  
p
n
nano  
micro  
milli  
kilo  
μ
m
k
M
G
mega  
giga  
106  
109  
B
binary image  
An image in which the pixels have only one of two intensity values.  
Objects in the image usually have a pixel intensity of 1 (or 255), and  
the background has a pixel intensity of 0.  
C
CCD  
Charge Coupled Device. A chip that converts light into electronic signals.  
Dual Inline Package switch.  
D
DIP switch  
Direct Drive lighting  
controller  
A lighting controller integrated into some models of the National  
Instruments smart camera that can directly power current-controlled lights.  
E
Ethernet cable,  
standard  
CAT 5, CAT 5e, or CAT 6 Ethernet cable used to connect a Real-Time  
target to a network port or between the development computer and the  
Real-Time target.  
© National Instruments Corporation  
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NI 17xx Smart Camera User Manual  
 
 
Glossary  
exposure time  
The amount of time that light is allowed to strike the imaging sensor to  
produce an image.  
F
falling edge  
field of view  
fps  
The digital signal transition from the high state to the low state.  
The area of inspection that the camera can acquire.  
Frames per second.  
G
gain  
The amount of increase in signal power, voltage, or current expressed as the  
ratio of output to input.  
I
IEC  
IEEE  
I/O  
International Electrotechnical Commission. A standard-setting body.  
Institute of Electrical and Electronics Engineers. A standard-setting body.  
Input/output. The transfer of data to/from a computer system involving  
communications channels, operator interface devices, or data acquisition  
and control interfaces.  
L
LED  
Light-emitting diode.  
M
MAC  
Media access control. The MAC address uniquely identifies each unit  
connected to a network.  
MAX  
Measurement & Automation Explorer. A controlled, centralized  
configuration environment that allows you to configure all of your  
NI 17xx Smart Camera User Manual  
G-2  
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Glossary  
N
NI-IMAQ  
Driver software for National Instruments image acquisition devices and  
smart cameras.  
P
PLC  
Programmable Logic Controller. An industrial computer used for factory  
automation, process control, and manufacturing systems.  
pulse train  
A signal consisting of a series of continuous pulses.  
Q
quadrature encoder  
An encoding technique for a rotating device where two tracks of  
information are placed on the device, with the signals on the tracks offset  
by 90 degrees from each other. The phase difference indicates the position  
and direction of rotation.  
R
rising edge  
The digital signal transition from the low state to the high state.  
Standard electrical interface for serial data communications.  
RS-232  
S
sensor resolution  
sensor size  
subnet  
The number of columns and rows of CCD pixels in the camera sensor.  
The size of the active area of an image sensor.  
A set of systems whose IP addresses are configured such that they can  
communicate directly with one another. Data will not flow through an  
intermediate router.  
SXGA sensor  
syntax  
Super eXtended Graphics Array sensor. Image sensor that features a  
resolution of 1,280 × 1,024 pixels.  
Set of rules to which statements must conform in a particular programming  
language.  
© National Instruments Corporation  
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NI 17xx Smart Camera User Manual  
 
Glossary  
T
TCP  
Transmission Control Protocol. A set of standard protocols for  
communicating across a single network or interconnected set of networks.  
TCP is for high-reliability transmissions.  
trigger  
Any event that causes or starts some form of data capture.  
V
VDC  
Volts direct current.  
VGA sensor  
Video Graphics Array sensor. Image sensor that features a resolution of  
640 × 480 pixels.  
VI  
Virtual Instrument. A combination of hardware and/or software elements,  
typically used with a PC, that has the functionality of a classic stand-alone  
instrument.  
W
working distance  
The distance from the front of the camera lens to the object under  
inspection.  
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Index  
Numerics  
24 V strobe output, 4-7  
enabling, 4-8  
5 V TTL strobe output, 4-7  
enabling, 4-8  
Declaration of Conformity (NI resources), D-2  
detailed specifications, A-1  
diagnostic tools (NI resources), D-1  
A
acquiring images, 5-1, 5-2  
Direct Drive, 4-2  
free-run mode, 5-2  
internal timing, 5-2  
connecting a light, 4-6  
lighting files, 4-4  
selecting a light, 4-5  
ACTIVITY/LINK LED, 7-2  
DHCP server, 7-3  
documentation  
conventions used in manual, ix  
assigning an IP address, 7-3  
B
binning, 3-4  
E
C
ACTIVITY/LINK LED, 7-2  
SPEED LED, 7-2  
Ethernet ports, 7-1  
external trigger, 5-3  
communicating with the console, 2-6  
connecting  
isolated output to a sinking external  
load, 2-5  
load, 2-5  
sinking output sensors to isolated  
inputs, 2-4  
sourcing output sensors to isolated  
inputs, 2-3  
FAIL LED, 6-4  
firewall considerations, 7-4  
fixed-frame-rate mode, 5-3  
frame rate, 5-6  
to a quadrature encoder, 2-7  
to serial devices, 2-6  
maximum, 5-6  
free-run mode, 5-2  
© National Instruments Corporation  
I-1  
NI 17xx Smart Camera User Manual  
 
 
Index  
lighting, 4-1  
connector, 4-1  
G
gain, 3-4  
controller, 4-2  
files, 4-4  
LUT (lookup table) See hardware binarization  
H
hardware binarization, 3-5  
I
I/O, 2-1  
NI 17xx  
image  
acquiring images, 5-2  
binning, 3-4  
connecting  
acquisition, 5-1  
image readout duration, 5-10  
image sensor, 3-1  
binning, 3-4  
field of view, 3-1  
gain, 3-4  
an isolated output to a sinking  
inputs, 2-3  
hardware binarization, 3-5  
partial scan mode, 3-3  
spectral response, 3-3  
IMG ACQ LED, 6-4  
input/output, 2-1  
instrument drivers (NI resources), D-1  
IP  
address, assigning, 7-3  
RESET DIP switch, 6-5  
isolated  
to a quadrature encoder, 2-7  
to serial devices, 2-6  
device initialization, 6-2  
dimensions, 8-2  
inputs, 2-3  
outputs, 2-4  
DIP switches, 6-1  
Direct Drive, 4-2  
Ethernet LEDs, 7-2  
Ethernet ports, 7-1  
exposure, 5-1  
K
firewall considerations, 7-4  
gain, 3-4  
hardware  
L
LabVIEW, 1-5  
documents, xi  
binarization, 3-5  
overview, 1-1  
Real-Time Module, 1-5  
LEDs, 6-1  
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isolated  
inputs, 2-3  
outputs, 2-4  
LEDs, 6-1  
lighting, 4-1  
connector, 4-1  
quadrature encoder, 2-7  
using a quadrature encoder to delay a  
trigger, 5-5  
lighting files, 4-4  
models, 1-1  
related documentation, x  
hardware documents, x  
LabVIEW documents, xi  
NI Vision Acquisition Software  
documents, xi  
overview, 1-1  
partial scan mode, 3-3  
power requirements, 2-2  
protecting against inductive loads, 2-6  
selecting a light, 4-5  
software overview, 1-4  
specifications, A-1  
NI Vision Builder for Automated  
Inspection documents, x  
subnet considerations, 7-4  
troubleshooting, B-1  
NI Vision Acquisition Software, 1-6  
NI-IMAQ documents, xi  
SAFE MODE DIP switch, 6-5  
selecting a light, 4-5  
software  
NI Vision Builder for Automated  
Inspection, 1-4  
application, 1-6  
documents, x  
NI resources, D-1  
NI Vision Development Module, 1-5  
documents, xi  
NI-IMAQ, 1-6  
programming choices, 1-4  
specifications, A-1  
SPEED LED, 7-2  
STATUS LED, 6-2  
indications, 6-3  
P
partial scan mode, 3-3  
PASS LED, 6-4  
power, 2-1  
requirements, 2-2  
technical support, D-1  
POWER LED, 6-2  
thermal considerations, 8-1  
training and certification (NI resources), D-1  
trigger synchronization variability, 5-5  
POWER-I/O connector, 2-1  
pin descriptions, 2-1  
programming examples (NI resources), D-1  
protecting against inductive loads, 2-6  
© National Instruments Corporation  
I-3  
NI 17xx Smart Camera User Manual  
 
Index  
troubleshooting, B-1  
configuration problems, B-1  
firewall problems, B-1  
LED error indications, B-7  
lighting problems, B-4  
network problems, B-1  
Vision Acquisition Software, 1-6  
Vision Development Module, 1-5  
description, 1-5  
run-time problems, B-3  
triggering problems, B-6  
W
Web resources, D-1  
U
understanding LED indicators, 6-1  
NI 17xx Smart Camera User Manual  
I-4  
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