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Contents

NI CVS-1450 Series User Manual

vi

ni.com

Chapter 3
Digital I/O Functionality

Overview ....................................................................................................................... 3-1
TTL and Isolated Inputs and Outputs ............................................................................ 3-1

TTL Inputs and Outputs .................................................................................. 3-2
Isolated Inputs and Outputs............................................................................. 3-2
I/O for Normal Operation ............................................................................... 3-3

Trigger Inputs ................................................................................... 3-3
Timed Pulse Output .......................................................................... 3-4
Quadrature Encoder .......................................................................... 3-7
Product Selection Port ...................................................................... 3-7
General-Purpose I/O ......................................................................... 3-8

I/O for Fault Conditions .................................................................................. 3-9

Shutdown .......................................................................................... 3-10
Watchdog Timer ............................................................................... 3-11
Overheat............................................................................................ 3-12

Considerations When Connecting the Digital I/O......................................................... 3-12

Wiring an Isolated Input to a Sourcing Output Device................................... 3-12
Wiring an Isolated Output to an External Load .............................................. 3-13
Protecting Inductive Loads ............................................................................. 3-14
Transmission Line Effects .............................................................................. 3-15

Typical System Setup .................................................................................................... 3-16

Chapter 4
Deployment

Connecting Multiple NI CVS-1450 Devices................................................................. 4-1

Appendix A
Troubleshooting

Appendix B
Mounting Information

Appendix C
Technical Support and Professional Services

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Содержание NI Vision CVS-1456

Страница 1: ...NI Vision NI CVS 1450 Series User Manual NI CVS 1450 Series User Manual November 2007 373610F 01...

Страница 2: ...ebanon 961 0 1 33 28 28 Malaysia 1800 887710 Mexico 01 800 010 0793 Netherlands 31 0 348 433 466 New Zealand 0800 553 322 Norway 47 0 66 90 76 60 Poland 48 22 3390150 Portugal 351 210 311 210 Russia 7...

Страница 3: ...ncluding photocopying recording storing in an information retrieval system or translating in whole or in part without the prior written consent of National Instruments Corporation National Instruments...

Страница 4: ...t 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 Thi...

Страница 5: ...nspection Vision Builder AI 1 5 LabVIEW 1 5 LabVIEW Real Time Module 1 6 NI Vision Acquisition Software 1 7 Chapter 2 LEDs DIP Switches and Connectors LED Indicators 2 1 POWER OK LED 2 2 STATUS LED 2...

Страница 6: ...se I O 3 8 I O for Fault Conditions 3 9 Shutdown 3 10 Watchdog Timer 3 11 Overheat 3 12 Considerations When Connecting the Digital I O 3 12 Wiring an Isolated Input to a Sourcing Output Device 3 12 Wi...

Страница 7: ...he last dialog box This icon denotes a tip which alerts you to advisory information This icon denotes a note which alerts you to important information This icon denotes a caution which advises you of...

Страница 8: ...ns NI Vision Acquisition Software Release Notes Outlines new functionality system requirements installation procedures and descriptions of the documentation included with the NI IMAQdx driver software...

Страница 9: ...nd status information and to configure the NI CVS 1450 device settings When configured the NI CVS 1450 device can run applications without a connection to the development computer Each NI CVS 1450 dev...

Страница 10: ...e signal integrity Figure 1 1 shows the NI CVS 1450 Series front panel Figure 1 1 NI CVS 1450 Series Front Panel 1 Power LED 2 Status LED 3 Isolated Digital Input 4 TTL Digital Outputs 5 IEEE 1394a Po...

Страница 11: ...ates and larger image sizes require a higher data transfer rate and use more bandwidth Table 1 1 shows the maximum number of cameras the NI CVS 1450 device supports for three common video formats Use...

Страница 12: ...1450 Series Compact Vision System for installation and configuration instructions The following sections describe the software options For detailed information about individual software packages refe...

Страница 13: ...3 0 or later No additional software is needed Vision Builder AI is configurable software for building benchmarking and deploying machine vision applications Vision Builder AI does not require program...

Страница 14: ...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 proc...

Страница 15: ...These VIs include routines for video configuration continuous and single shot image acquisition trigger control and register level camera configuration NI IMAQdx also handles many of the complex issue...

Страница 16: ...IP switches and connectors on the NI CVS 1450 device The Connectors section provides signal names and descriptions for each connector LED Indicators Figure 2 1 shows the location of the POWER OK and S...

Страница 17: ...operating conditions and flashes a specific number of times to indicate error conditions or certain DIP switch settings The STATUS LED remains lit if the NI CVS 1450 device detects an internal error R...

Страница 18: ...K and 10 100 Mbps LEDs DIP Switches This section describes the SAFE MODE IP RESET NO APP and USER 1 DIP switches on the NI CVS 1450 device To enable a DIP switch move the switch to the ON left positio...

Страница 19: ...e safe mode to reconfigure TCP IP settings and to download or update software from the development computer Downloading incorrect software to the NI CVS 1450 device may cause it to hang during restart...

Страница 20: ...ration for the NI CVS 1450 device from a development machine on the same subnet or you can use an Ethernet crossover cable to connect the NI CVS 1450 device directly to the development computer NO APP...

Страница 21: ...output circuitry Caution The isolation provided by the NI CVS 1450 device is intended to prevent ground loops that could introduce noise into the system This isolation does not provide safety isolatio...

Страница 22: ...n the NI CVS 1450 device to connect the chassis to earth ground Connecting the grounding lug shown in Figure 2 5 to earth ground connects the common mode signal of the main power to earth ground throu...

Страница 23: ...a Bandwidth section of Chapter 1 NI CVS 1450 Series Overview To access the IEEE 1394 connectors on the NI CVS 1450 device use any standard 6 pin IEEE 1394 cable Note You can use a 4 pin to 6 pin conve...

Страница 24: ...he NI CVS 1450 device Table 2 3 VGA Connector Signals Pin Number Signal Name Signal Description 1 R Red 2 G Green 3 B Blue 4 NC No Connect 5 C Common mode signal of the NI CVS 1450 device main power 6...

Страница 25: ...al Port VIs access COM1 as Port 0 Figure 2 7 shows the location and pinout of the COM1 DSUB 9 pin connector Figure 2 7 COM1 DSUB 9 Pin Connector 10 C Common mode signal of the NI CVS 1450 device main...

Страница 26: ...vice automatically detects the speed of the connection and configures itself accordingly If you are connecting the NI CVS 1450 device to the development computer through a network port use a standard...

Страница 27: ...o the TTL outputs use the National Instruments SMB 111 coaxial cable part number 763422 01 Note Additional TTL outputs are available on the 44 pin DSUB connector Caution Do not connect voltage or curr...

Страница 28: ...om the Viso pins on the 44 pin DSUB connector Do not draw more than 100 mA from 24 V or 30 V isolated outputs Do not draw more than 50 mA from 5 V isolated outputs Table 2 5 44 Pin DSUB and 37 Pin Ter...

Страница 29: ...se output 13 35 ISO Output 1 General purpose output 14 34 Ciso Isolated common mode signal 15 9 ISO Input 0 Input port Data 0 16 2 TTL Input 1 Pulse generator trigger input General purpose input 17 3...

Страница 30: ...3 16 Ciso Isolated common mode signal 34 14 ISO Input 4 Input Port Data 4 35 15 ISO Input 5 Input port latch Data 5 Pulse generator trigger input 36 28 Ciso Isolated common mode signal 37 25 ISO Input...

Страница 31: ...l 43 30 ISO Input 10 General purpose input General purpose input 44 31 ISO Input 11 User shutdown General purpose input Table 2 5 44 Pin DSUB and 37 Pin Terminal Block Connector Signals Continued 44 P...

Страница 32: ...robe lighting outputting inspection results or communicating with PLCs Refer to the NI IMAQ I O documentation and examples in the following location LabVIEW examples imaq imaqio llb You can also defin...

Страница 33: ...ops that can introduce noise into a system You can apply signals up to 30 V to the isolated inputs The voltage swing of the isolated outputs is determined by the Viso you supply on the connector Note...

Страница 34: ...ion item is passing in front of the camera The NI CVS 1450 device uses this input to initiate a timed pulse Table 3 2 Isolated Inputs and Outputs Primary Function Input or Output Number Available Sign...

Страница 35: ...configure the start of the pulse output generation to occur from software or from a rising or falling edge of a trigger input In addition to controlling the timing of pulse output you can also configu...

Страница 36: ...ted Figure 3 1 Output Pulse When Trigger Is Selected Pulse Modes Each pulse generator has a Start and a Stop mode Configure the pulse generator when in Stop mode and then set it to Start mode Pulse De...

Страница 37: ...have different polarities Figure 3 2 shows the output of a pulse generator configured to look for a rising edge trigger and output a high pulse with a microsecond width and delay Figure 3 2 High Puls...

Страница 38: ...r Low Pulse with a Quadrature Encoder Delay Product Selection Port The product selection port consists of a group of five isolated digital inputs that the software running on the NI CVS 1450 device re...

Страница 39: ...ny time the software running on the NI CVS 1450 device can read the inputs and drive the outputs high or low General Purpose Inputs The primary difference between general purpose inputs and trigger in...

Страница 40: ...sing general purpose outputs is driving a relay that turns on an Inspection in Progress light for an operator to see while the inspection sequence is running I O for Fault Conditions The NI CVS 1450 d...

Страница 41: ...me operation you must reset the NI CVS 1450 device For all fault conditions outputs operate according to user defined shutdown states Each TTL output is configurable to drive high drive low or 3 state...

Страница 42: ...Indicator Only option only to test the watchdog timer If software becomes unresponsive it cannot be relied upon to send notification to the host Indicator Only This option sends the expiration signal...

Страница 43: ...ting the Digital I O The isolated trigger inputs on the NI CVS 1450 device are current sinking and optically isolated Figure 3 5 shows the trigger input interface circuit Wiring an Isolated Input to a...

Страница 44: ...The digital output circuit sources current to external loads as shown in the example in Figure 3 6 Caution Do not draw more than 100 mA from 24 V or 30 V isolated outputs Do not draw more than 50 mA...

Страница 45: ...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 conn...

Страница 46: ...onnect to the SMB connectors Figure 3 8 shows connections to the 44 pin DSUB connector and the TRIG 0 SMB connector that minimize transmission line effects Figure 3 8 Example Connections When connecti...

Страница 47: ...I O capabilities of the SMB connectors on the NI CVS 1450 device are ideal for typical single camera applications The SMB connectors are labeled TRIG 0 TRIG 1 and TRIG 2 Table 3 5 summarizes a typical...

Страница 48: ...Corporation 3 17 NI CVS 1450 Series User Manual Figure 3 9 illustrates a typical single camera setup Figure 3 9 Typical Single Camera Setup 1 Lighting Control Unit 2 Lighting Ring 3 Inspection Items...

Страница 49: ...An Ethernet connection between the development computer and the NI CVS 1450 device allows you to assign an IP address configure the NI CVS 1450 device download inspection tasks and remotely monitor an...

Страница 50: ...mming and monitoring of any NI CVS 1450 device not protected by a firewall or user password Use the NI CVS 1450 device serial number and media access control MAC address to uniquely identify each unit...

Страница 51: ...ne All image acquisition inspection decision making and I O occurs on the NI CVS 1450 device itself For local monitoring of the inspection you can connect a monitor directly to the Video Out connector...

Страница 52: ...nicate with unconfigured NI CVS 1450 devices even if these devices are on the same subnet You can test this by connecting the development computer and the NI CVS 1450 device directly to a network port...

Страница 53: ...the CVS 1450 device has network connectivity If the CVS 1450 device 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 CV...

Страница 54: ...e you want to reformat and select Format Disk The video output connected to the NI CVS 1450 device displays the status of the format 5 After the format completes disable the SAFE MODE switch and resta...

Страница 55: ...cally isolated from the NI CVS 1450 device main supply they require power in addition to the NI CVS 1450 device main supply Runaway Startup Application If a runaway startup application causes the NI C...

Страница 56: ...ng Started with the NI CVS 1450 Series Compact Vision System Using a power supply that is not within these specifications might result in an unresponsive or unstable system and could damage the NI CVS...

Страница 57: ...nts part number 189154 01 Mounting the NI CVS 1450 Series If you want to create a custom mount Figures B 1 through B 4 provide dimensional drawings and clearance information for the NI CVS 1450 Series...

Страница 58: ...ons Figure B 2 Side View of the NI CVS 1450 Series with Dimensions 49 28 mm 1 940 in 19 74 mm 0 777 in 1 52 mm 0 06 in 20 32 mm 0 80 in 24 64 mm 0 97 in 63 42 mm 2 497 in 4X 4 40 UNC Max Depth 5 08 mm...

Страница 59: ...nd Connection section of Chapter 2 LEDs DIP Switches and Connectors for more information about the grounding lug Caution Your installation must meet the following space and cabling clearance requireme...

Страница 60: ...ollowing steps to secure the NI CVS 1450 device to your mount 1 Align the screw holes of your mounting bracket with the four holes on the back of the NI CVS 1450 device Figure B 1 shows the location o...

Страница 61: ...Instruments Application Engineers make sure every question receives an answer For information about other technical support options in your area visit ni com services or contact your local office at...

Страница 62: ...i com calibration If you searched ni com and 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...

Страница 63: ...pecification Version 1 30 DIP switch Dual Inline Package switch E Ethernet cable standard CAT 5 or CAT 6 Ethernet cable used to connect a Real Time target to a network port Ethernet crossover cable CA...

Страница 64: ...A signal consisting of a series of continuous pulses R rising edge The digital signal transition from the low state to the high state RS 232 Standard electrical interface for serial data communication...

Страница 65: ...ndard protocols for communicating across a single network or interconnected set of networks UDP is for low overhead transmissions V VDC Volts direct current VI Virtual Instrument A combination of hard...

Страница 66: ...rmity NI resources C 1 deployment 4 1 diagnostic tools NI resources C 1 digital camera specification vii 1 1 digital I O 44 pin DSUB 2 12 connection considerations 3 12 connector table 2 6 connector p...

Страница 67: ...input sourcing output device 3 12 isolated output external load 3 12 K KnowledgeBase C 1 L label MAC address serial number 4 2 LabVIEW 1 5 LabVIEW Real Time Module description 1 6 latch 3 8 LEDs figu...

Страница 68: ...1 NI IMAQdx 1 5 1 7 sourcing output device wiring 3 12 figure 3 12 STATUS LED 2 2 error indications table A 5 subnet 4 2 support technical C 1 T technical support C 1 terminal block 37 pin table 2 13...

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