National Instruments NI VISION PCI-8254R User Manual
Summary of NI VISION PCI-8254R
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Ni vision ni pci-8254r user manual 1394a image acquisition device with reconfigurable i/o ni pci-8254r user manual september 2006 371578c-01.
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Support worldwide technical support and product information ni.Com national instruments corporate headquarters 11500 north mopac expressway austin, texas 78759-3504 usa tel: 512 683 0100 worldwide offices australia 1800 300 800, austria 43 0 662 45 79 90 0, belgium 32 0 2 757 00 20, brazil 55 11 326...
Page 3: Important Information
Important information warranty the ni pci-8254r is 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 defec...
Page 4: Compliance
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 (fo...
Page 5: Conventions
Conventions the following conventions are used 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...
Page 6: Contents
© national instruments corporation vii ni pci-8254r user manual contents chapter 1 introduction software overview ........................................................................................................1-1 vision builder for automated inspection .........................................
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Contents ni pci-8254r user manual viii ni.Com chapter 3 signal connections connectors ..................................................................................................................... 3-2 2-position isolated outputs power connector ...................................................
Page 8: Introduction
© national instruments corporation 1-1 ni pci-8254r user manual 1 introduction the national instruments pci-8254r is an ieee 1394a interface device for pci with reconfigurable i/o (rio). The ni 8254r is ohci compliant and should be used with ieee 1394a devices that run natively in windows 2000/xp. T...
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Chapter 1 introduction ni pci-8254r user manual 1-2 ni.Com national instruments also offers the following application software packages for analyzing and processing your acquired images. For detailed information about individual software packages, refer to the documentation specific to each package....
Page 10: Ieee 1394 and Ni 8254R
Chapter 1 introduction © national instruments corporation 1-3 ni pci-8254r user manual vision assistant generates a builder file, which is a text description containing a recipe of the machine vision and image processing functions. This builder file provides a guide you can use for developing applic...
Page 11: Start Conditions
Chapter 1 introduction ni pci-8254r user manual 1-4 ni.Com figure 1-1. Ni 8254r block diagram start conditions the ni 8254r can start acquisitions in the following ways: • software control—the ni 8254r supports software control of acquisition start. You can configure the ni 8254r to capture a fixed ...
Page 12: Digital I/o
© national instruments corporation 2-1 ni pci-8254r user manual 2 digital i/o the digital i/o functions on the ni 8254r are accessible through 2 ttl inputs, 10 ttl outputs, 13 isolated inputs, and 4 isolated outputs. You can use input signals as triggers, product selection ports, change detectors, o...
Page 13: Ttl Inputs and Outputs
Chapter 2 digital i/o ni pci-8254r user manual 2-2 ni.Com ni-imaq i/o devices such as the such as the ni 8254r, the ni 8255r, and the cvs-1450 series compact vision systems have 29 digital i/o lines with built-in functionality for communicating with external devices, such as reading quadrature encod...
Page 14: Isolated Inputs and Outputs
Chapter 2 digital i/o © national instruments corporation 2-3 ni pci-8254r user manual isolated inputs and outputs the isolated inputs and outputs on the ni 8254r have a separate ground reference from the main ni 8254r device supply, providing an easy means to prevent ground loops that can introduce ...
Page 15: I/o For Normal Operation
Chapter 2 digital i/o ni pci-8254r user manual 2-4 ni.Com table 2-2 summarizes the isolated inputs and outputs available on the ni 8254r. I/o for normal operation the following sections describe i/o functions that are available on the ni 8254r during normal operation. Table 2-2. Ni 8254r isolated in...
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Chapter 2 digital i/o © national instruments corporation 2-5 ni pci-8254r user manual trigger inputs trigger inputs are available from both ttl inputs and isolated inputs. You can use these trigger inputs to synchronize the ni 8254r with an external event, such as the assertion of a signal generated...
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Chapter 2 digital i/o ni pci-8254r user manual 2-6 ni.Com when the pulse generator is configured for a particular trigger input, after generating a pulse, it waits for another trigger before generating another pulse. When the pulse generator is configured to immediately generate the pulse on a softw...
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Chapter 2 digital i/o © national instruments corporation 2-7 ni pci-8254r user manual pulse width pulse width is the amount of time between the first (assertion) edge of a pulse and the second (deassertion) edge. Pulse width is configurable only in microseconds from 1 µs to 4,294,967,295 µs. Trigger...
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Chapter 2 digital i/o ni pci-8254r user manual 2-8 ni.Com trigger change detectors the ni 8254r is capable of detecting edges on various trigger lines and latching this information for future retrieval. This feature is useful for high-precision hardware-monitoring of the presence of external events ...
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Chapter 2 digital i/o © national instruments corporation 2-9 ni pci-8254r user manual example, an upstream ni 8254r device programmed for part classification might drive the product selection port of a downstream ni 8254r device. Alternatively, a plc with information about which part is being inspec...
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Chapter 2 digital i/o ni pci-8254r user manual 2-10 ni.Com an example of how to use general-purpose inputs is reading the status of a general-purpose input as the first step in your inspection sequence and recording that value as part of your inspection. General-purpose outputs the primary differenc...
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Chapter 2 digital i/o © national instruments corporation 2-11 ni pci-8254r user manual shutdown shutdown mode is a software-enabled feature that, when activated, allows an external device to halt the ni 8254r device processing operations. Additionally, shutdown mode allows you to specify user-define...
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Chapter 2 digital i/o ni pci-8254r user manual 2-12 ni.Com considerations when connecting the digital i/o the isolated trigger inputs on the ni 8254r are current sinking and optically isolated. The following are considerations you need to make when connecting the digital i/o. Wiring an isolated inpu...
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Chapter 2 digital i/o © national instruments corporation 2-13 ni pci-8254r user manual wiring an isolated output to an external load the digital output circuit sources current to external loads, as shown in the following figure. Caution do not draw more than 100 ma from 24 v or 30 v isolated outputs...
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Chapter 2 digital i/o ni pci-8254r user manual 2-14 ni.Com protecting inductive loads when an inductive load, such as a relay or solenoid, is connected to an output, a large counter-electromotive force may occur at switching time due to energy stored in the inductive load. This flyback voltage can d...
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Chapter 2 digital i/o © national instruments corporation 2-15 ni pci-8254r user manual transmission line effects transmission line effects can degrade the signals on the i/o cables and cause instability. To minimize transmission line effects, use twisted pair wires with a characteristic impedance of...
Page 27: Signal Connections
© national instruments corporation 3-1 ni pci-8254r user manual 3 signal connections the following diagram shows the connectors on the ni 8254r device. 1 ieee 1394a connector 2 ieee 1394a connector 3 2-position isolated outputs power connector 4 digital i/o connector ni pci-8254r ieee-1394 v c 5–30v...
Page 28: Connectors
Chapter 3 signal connections ni pci-8254r user manual 3-2 ni.Com table 3-1 summarizes the functions of the connectors on the ni 8254r device. Connectors this section describes the connectors on the ni 8254r device and includes pinouts and signal descriptions for each connector. 2-position isolated o...
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Chapter 3 signal connections © national instruments corporation 3-3 ni pci-8254r user manual table 3-2 summarizes the functions of the power connector terminals. Ieee 1394a connector the ieee 1394a connectors on the ni 8254r device provide a reliable, high-frequency connection between the ni 8254r d...
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Chapter 3 signal connections ni pci-8254r user manual 3-4 ni.Com figure 3-2 illustrates the 44-pin d-sub connector on the ni 8254r. Figure 3-2. Ni 8254r 44-pin d-sub connector table 3-3 lists pin numbers, signal names, and signal descriptions for the 44-pin d-sub connector on the ni 8254r and the 37...
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Chapter 3 signal connections © national instruments corporation 3-5 ni pci-8254r user manual 5 6 c common-mode signal of the ni 8255r device main power — 6 7 ttl output 2 pulse generator output general-purpose output 7 8 ttl output 3 pulse generator output general-purpose output 8 6 c common-mode si...
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Chapter 3 signal connections ni pci-8254r user manual 3-6 ni.Com 16 2 ttl input 1 pulse generator trigger input trigger change detector, general-purpose input 17 3 c common-mode signal of the ni 8255r device main power — 18 20 ttl output 4 pulse generator output general-purpose output 19 21 ttl outp...
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Chapter 3 signal connections © national instruments corporation 3-7 ni pci-8254r user manual 27 36 iso output 2 general-purpose output — 28 37 iso output 3 general-purpose output — 29 12 c iso isolated common-mode signal — 30 10 iso input 1 input port, data(1) — 31 11 iso input 2 input port, data(2)...
Page 34: Cabling
Chapter 3 signal connections ni pci-8254r user manual 3-8 ni.Com cabling ieee 1394 camera cables you can connect cameras to the ni 8254r using standard ieee 1394 cables. Ieee 1394 cables provide both a data path and power to your camera. 40 27 iso input 8 pulse generator trigger input trigger change...
Page 35: Power Requirements
Chapter 3 signal connections © national instruments corporation 3-9 ni pci-8254r user manual i/o terminal block national instruments provides an i/o terminal block with the ni 8254r, which can be mounted either horizontally or vertically. The i/o terminal block breaks the signals out into easy-to-us...
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Chapter 3 signal connections ni pci-8254r user manual 3-10 ni.Com the isolated outputs power connector on the ni 8254r device accommodates one power supply. The v terminal provides the isolated output circuitry (5 to 30 vdc) for the ni 8254r device. The c terminal provides the common-mode signal for...
Page 37: Technical Support and
© national instruments corporation a-1 ni pci-8254r user manual a technical support and professional services visit the following sections of the national instruments web site at ni.Com for technical support and professional services: • support—online technical support resources at ni.Com/support in...
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Appendix a technical support and professional services ni pci-8254r user manual a-2 ni.Com • calibration certificate—if your product supports calibration, you can obtain the calibration certificate for your product at ni.Com/calibration . If you searched ni.Com and could not find the answers you nee...
Page 39: Glossary
© national instruments corporation g-1 ni pci-8254r user manual glossary a ade application development environment such as labview, visual basic, or msvc. B bandwidth the range of frequencies present in a signal, or the range of frequencies to which a measuring device can respond. C current the rate...
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Glossary ni pci-8254r user manual g-2 ni.Com f falling edge an edge trigger occurs when the trigger signal passes through a specified threshold. A slope that is negative to the trigger is specified as the falling edge. Firewire a high-speed serial interface invented by apple computer in 1989, also k...
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Glossary © national instruments corporation g-3 ni pci-8254r user manual p pixel the fundamental picture element in a digital image. The smallest resolvable rectangular area of an image, either on a screen or stored in memory. Each pixel has its own brightness and color, usually represented as red, ...
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Glossary ni pci-8254r user manual g-4 ni.Com v vdc volts direct current. Voltage the electromotive force..
Page 43: Index
© national instruments corporation i-1 ni pci-8254r user manual index a acquisition window control, 1-4 c cabling, 3-8 calibration certificate (ni resources), a-2 connector functions, 3-2 connectors, 3-2 2-position isolated output power, 3-2 general-purpose digital i/o, 3-3 ieee 1394a, 3-3 conventio...
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Index ni pci-8254r user manual i-2 ni.Com n national instruments support and services, a-1 ni 1427 software programming choices ni vision builder for automated inspection, 1-2 ni vision development module, 1-2 ni 8254r acquisition window control, 1-4 cabling, 3-8 connection considerations, 2-12 conn...
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Index © national instruments corporation i-3 ni pci-8254r user manual t technical support, a-1 timed pulse output initiating, 2-5 overview, 2-5 training and certification (ni resources), a-1 transmission line effects, 2-14 trigger change detectors, 2-8 trigger inputs, 2-5 trigger polarity, 2-7 troub...