IMAQ PCI-1424 User Manual
Contents
1. Signaling type eee Configurable LVDS or TTL Polarity os ccsgessctestscesssasetoesenstseteceoages Configurable rising or falling edge Enable Sigal LY Pe sicrie Configurable LVDS or TTL Polarity icenen Configurable active high or active low Control Signal Yperen Configurable LVDS or TTL Polarity saniainen Configurable active high or active low Minimum control signal pulse width 20 ns Video data signal type 0 ee Configurable LVDS or TTL Memory Onboard MeMOTy eee eee eeeeeeees 16 MB SDRAM MES este cestiect E Four 8 bit two 10 bit to 16 bit nye Note SO DIMM memory upgrades are available in 64 MB and 128 MB densities Clocks Pixel clock frequency range 04 20 KHz to 50 MHz IMAQ PCI 1424 User Manual A 2 ni com PCI Interface Serial Interface Appendix A Specifications Theoretical max PCI bandwidth 133 MB s Signaling standard eee RS 232 Baud rates supported c eeeeeeseeees Configurable 300 600 1200 1800 2000 2400 3600 4800 7200 or 9600 bps 19 2 38 4 or Power Requirements Physical Environment 56 kbps Data Bits fin icc vd ces cksdecdevandoeveedccdestees Configurable 5 6 7 or 8 bits Pati tyig etikiessteiateye al dase ateess Configurable odd even or disabled SIOP Ditexkicc E AR ede Configurable enabled or disabled Data transmit ready polarity Configurable active high or active low Ready to send polarity eee Configurable ac2. The serial interface is configurable allowing you to customize it to your camera requirements Trigger Control and Mapping Circuitry The trigger control and mapping circuitry routes monitors and drives the external and RTSI bus trigger lines You can configure each of these lines to start an acquisition on a rising or falling edge In addition you can drive each line asserted or unasserted similar to a digital I O line You can also map pulses from the high speed timing circuitry or many of the PCI 1424 status signals to these trigger lines There are four external and seven RTSI bus triggers You can program each of these triggers in polarity and direction National Instruments Corporation 3 3 IMAQ PCI 1424 User Manual Chapter 3 Hardware Overview High Speed Timing The high speed timing circuitry on the PCI 1424 built from high speed counters allows you to specify or generate precise real time control signals You can map the output of this circuitry to a trigger line to provide accurate pulses and pulse trains Acquisition and ROI The acquisition and region of interest ROI circuitry monitors the incoming video signals and routes the active pixels to the multiple tap data formatter and SDRAM memory In an ROI acquisition you select an area within the acquisition window to transfer to the PCI bus Scatter Gather DMA Controllers The PCI 1424 uses three independent onboard direct memory access DMA controllers The DM
3. 20 70 21 71 22 72 23 73 24 74 25 75 26 76 27 77 28 78 29 79 30 80 31 81 32 82 33 83 34 84 35 85 36 86 37 87 38 88 39 89 40 90 41 91 42 92 43 93 44 94 45 95 46 96 47 97 48 98 49 99 50 100 Data16 Data16 Data17 Data17 Data18 Data18 Data19 Data19 Data20 Data20 Data21 Data21 Data22 Data22 Data23 Data23 Data24 Data24 Data25 Data25 Data26 Data26 Data27 Data27 Data28 Data28 Data29 Data29 Data30 Data30 Data31 Data31 RI RS 232 DTR RS 232 DSR RS 232 RTS RS 232 CTS RS 232 DCD RS 232 Reserved Reserved Reserved Reserved SOUT RS 232 SIN RS 232 External TriggerO External Trigger1 External Trigger2 External Trigger3 GND GND Figure 4 1 PCI 1424 Pin Assignments 4 2 ni com Chapter 4 Signal Connections Signal Description Table 4 1 describes each signal connection on the 100 pin SCSI connector Table 4 1 1 0 Connector Signals Signal Name Description Data lt 31 0 gt Data lt 31 0 gt allows you to connect data up to 32 bits wide in either TTL or differential format to the PCI 1424 Control lt 3 0 gt You can use the control lines on the PCI 1424 to control digital camera features and timing information Either TTL or differential signals can be generated on these lines to perform such functions
4. DMA controllers 3 4 SDRAM 3 3 ni com serial interface RS 232 3 3 signal connections T O connector overview 4 1 pin assignments figure 4 2 signal description table 4 3 SIN signal table 4 3 software NI resources B 1 programming choices National Instruments IMAQ Vision 1 3 NI IMAQ driver software 1 2 Vision Development Module 1 3 software controlled start conditions 3 4 SOUT signal table 4 3 specifications clocks A 2 environment A 3 external connections A 1 PCI interface A 3 National Instruments Corporation Index physical A 3 power requirements A 3 safety A 4 start conditions delayed acquisition 3 5 frame field selection 3 5 software control 3 4 trigger control 3 4 support technical B 1 T technical support B 1 training and certification NI resources B 1 trigger control and mapping circuitry 3 3 trigger controlled start conditions 3 4 troubleshooting NI resources B 1 W Web resources B 1 IMAQ PCI 1424 User Manual
5. GND GND is a direct connection to digital ground on the PCI 1424 National Instruments Corporation 4 3 IMAQ PCI 1424 User Manual Specifications This appendix lists the specifications of the IMAQ PCI 1424 device These specifications are typical at 25 C unless otherwise stated External Connections Number of external trigger I O lines Trigger input Voltage range eeeeeseeeseeseeeeees Input high voltage Input low voltage eee Polarity Trigger output Voltage range Output high voltage 0 Output low voltage 0 0 Polarity Power on state PCI 1424 RS 422 TTL Pixel clock Signaling type Polarity Enable Signal type Polarity National Instruments Corporation A 1 0 to 5 V TTL 2 0 V 0 8 V Programmable active high or active low 0 to 5 V TTL 2 4 V at 15 mA source 0 55 V at 10 mA sink Programmable active high or active low Input high impedance 10 KQ pull up to 5 V Configurable RS 422 or TTL Configurable rising or falling edge Configurable RS 422 or TTL Configurable active high or active low IMAQ PCI 1424 User Manual Appendix A Specifications Control Signal type eee eeeereeeees Configurable RS 422 or TTL Polarity c gsclesice iiiiaiain cig Configurable active high or active low Minimum control signal pulse width 20 ns Video data signal type eee Configurable RS 422 or TTL PCI 1424 LVDS TTL Pixel clock
6. 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 2 IN ANY APPLICATION INCLUDING THE ABOVE RELIABILITY OF OPERATION OF THE SOFTWARE PRODUCTS CAN BE IMPAIRED BY ADVERSE FACTORS INCLUDING BUT NOT LIMITED TO FLUCTUATIONS IN ELECTRICAL POWER SUPPLY COMPUTER HARDWARE MALFUNCTIONS COMPUTER OPERATING SYSTEM SOFTWARE FITNESS FITNESS OF COMPILERS 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 MECHANIS
7. NVRAM s essessssesssesesrsresrerrsresreresrsresresrnsenresesresresestee 3 4 Start Conditions iiini niania easa iS na oaao iiine 3 4 Acquisition Window Control s s sssessssssesesesssesststsesesssessssrsesesennesesrsrsenenenene 3 5 National Instruments Corporation vij IMAQ PCI 1424 User Manual Contents Chapter 4 Signal Connections VO CORT ECION ness ceien certo pas etiss RAEE OER UAE Signal DEScriptOn iisas eth Gases eset E hese be E TEREE Appendix A Specifications Appendix B Technical Support and Professional Services Glossary Index IMAQ PCI 1424 User Manual viii ni com Introduction This chapter describes the IMAQ PCI 1424 device and describes your software programming choices About the IMAQ PCI 1424 The PCI 1424 is a highly flexible monochrome and color PCI based image acquisition IMAQ device that supports a diverse range of digital cameras from many camera companies The PCI 1424 acquires digital images in real time and can store these images in onboard frame memory or transfer these images directly to system memory The device can capture up to 32 bits of data at a time at clock speeds up to 50 MHz The PCI 1424 is simple to configure so that you can easily install the device and begin acquiring images The PCI 1424 ships with NI IMAQ the National Instruments complete IMAQ driver software you can use to directly control the PCI 1424 and other National Instruments IMAQ hardware produc
8. T O connector overview 4 1 pin assignments figure 4 2 signal description table 4 3 IMAQ PCI 1424 block diagram 3 2 devices safety information 2 3 optional equipment 2 2 overview and features 1 1 requirements for getting started 2 1 installation procedure 2 5 unpacking the PCI 1424 2 2 instrument drivers NI resources B 1 integration with DAQ and motion control 1 4 interlaced video 3 5 K KnowledgeBase B 1 L LabVIEW Vision Builder AI 1 3 LUTs lookup tables 3 2 M mapping circuitry 3 3 memory board configuration NVRAM 3 4 SDRAM 3 3 motion control integrating with 1 4 multiple tap data formatter 3 3 National Instruments support and services B 1 IMAQ PCI 1424 User Manual NI IMAQ driver software 1 2 NVRAM 3 4 0 optional equipment 2 2 P PCI interface specifications A 3 PCI 1424 devices software programming choices 1 2 National Instruments IMAQ Vision 1 3 NI IMAQ driver software 1 2 unpacking 2 2 physical specifications A 3 Pixel Clock signal table 4 3 power requirements A 3 programming examples NI resources B 1 R RAM board configuration NVRAM 3 4 SDRAM 3 3 region of interest in acquisition window control 3 5 region of interest ROI circuitry 3 4 requirements for getting started 2 1 RI signal table 4 3 RS 232 serial interface 3 3 RTS signal table 4 3 S safety information 2 3 specifications A 4 scatter gather
9. as generating integration or shutter pulses to the digital cameras Enable lt D A gt The PCI 1424 can receive any combination of up to four enable signals These signals can be either TTL or differential Examples of camera signals which might be connected to these pins are frame enable line enable even enable and odd enable If your camera has a separate field signal that line should be connected to Enable C Trigger lt 3 0 gt SOUT Serial Data Out is used for RS 232 connections SIN Serial Data In is used for RS 232 connections RI Ring Indicator is used for RS 232 connections DTR Data Terminal Ready is used for RS 232 connections DSR Data Set Ready is used for RS 232 connections RTS Request to Send is used for RS 232 connections CTS Clear to Send is used for RS 232 connections DCD Data Carrier Detect is used for RS 232 connections External External Trigger lt 3 0 gt are TTL I O lines used to start an acquisition or output to control external events You can program the triggers to be rising or falling edge sensitive You can also program the triggers to be programmatically asserted or unasserted similar to the function of a digital I O line or to contain internal status signals by using the onboard events or specific pulse widths Pixel Clock The PCI 1424 uses the Pixel Clock input as a reference clock to latch the incoming video data in either TTL or differential format
10. during operation of the module Do not operate the module in an explosive atmosphere or where there may be flammable gases or fumes If you must operate the module in such an environment it must be in a suitably rated enclosure If you need to clean the module use a soft nonmetallic brush Make sure that the module is completely dry and free from contaminants before returning it to service Operate the module only at or below Pollution Degree 2 Pollution is foreign matter in a solid liquid or gaseous state that can reduce dielectric strength or surface resistivity The following is a description of pollution degrees e Pollution Degree 1 means no pollution or only dry nonconductive pollution occurs The pollution has no influence e Pollution Degree 2 means that only nonconductive pollution occurs in most cases Occasionally however a temporary conductivity caused by condensation must be expected e Pollution Degree 3 means that conductive pollution occurs or dry nonconductive pollution occurs that becomes conductive due to condensation You must insulate signal connections for the maximum voltage for which the module is rated Do not exceed the maximum ratings for the module Do not install wiring while the module is live with electrical signals Do not remove or add connector blocks when power is connected to the system National Instruments Corporation 2 3 IMAQ PCI 1424 User Manual Chapter 2 Configuration and Inst
11. how to unpack configure and install your IMAQ device What You Need to Get Started To set up and use your PCI 1424 you will need the following Q Q 0D ODD National Instruments Corporation PCI 1424 device NI IMAQ for Windows 2000 NT XP Optional software packages and documentation NI Vision Builder for Automated Inspection NI Vision Assistant LabVIEW LabWindows CVI Measurement Studio IMAQ D100 series camera cables depending on your camera IMAQ D2504 video cable optional for access to trigger lines A video camera or other video source Pentium based PCI computer running Windows 2000 NT XP 2 1 IMAQ PCI 1424 User Manual Chapter 2 Configuration and Installation Optional Equipment National Instruments offers a variety of products for use with your PCI 1424 including the following cables and other National Instruments products e Cables to connect your digital camera to the PCI 1424 e A four pod BNC cable which routes trigger signals to a BNC connector block IMAQ D2504 e IMAQ memory modules to increase PCI 1424 onboard memory e RTSI bus cables for connecting the PCI 1424 to other IMAQ DAQ or motion control hardware e Other National Instruments DAQ devices for enhanced triggering timing or input output For specific information about these products refer to the National Instruments catalog visit ni com or call the office nearest you Unpacking The PCI 142
12. similar modules Installation Category III is for measurements performed in the building installation at the distribution level This category refers to measurements on hard wired equipment such as equipment in fixed installations distribution boards and circuit breakers Other examples are wiring including cables bus bars junction boxes switches socket outlets in the fixed installation and stationary motors with permanent connections to fixed installations Installation Category IV is for measurements performed at the primary electrical supply installation lt 1 000 V Examples include electricity meters and measurements on primary overcurrent protection devices and on ripple control units 1 Installation categories also referred to as measurement categories are defined in electrical safety standard IEC 61010 1 2 Working voltage is the highest rms value of an AC or DC voltage that can occur across any particular insulation 3 MAINS is defined as a hazardous live electrical supply system that powers equipment Suitably rated measuring circuits may be connected to the MAINS for measuring purposes IMAQ PCI 1424 User Manual 2 4 ni com Chapter 2 Configuration and Installation Installation Install the PCI 1424 in any available PCI expansion slot in your computer To achieve the best noise performance leave as much room as possible between the PCI 1424 and other devices and hardware Complete the following steps to
13. tasks With Vision Builder AI you can migrate your configured inspection to LabVIEW extending the capabilities of your applications if necessary Vision Builder AI is available for LabVIEW LabWindows CVI and Measurement Studio which includes support for Visual Basic Vision Development Module The Vision Development Module is an image acquisition processing and analysis library of more than 270 functions for grayscale color and binary image display image processing pattern matching particle analysis gauging and measurement For unique image processing you can use the Vision Development Module functions individually or in combination With the Vision Development Module you can acquire display manipulate and store images as well as perform image analysis processing and interpretation Using the Vision Development Module imaging novices and experts can program the most basic or complicated image applications without knowledge of particular algorithm implementations NI Vision Assistant is included with the Vision Development Module Vision Assistant is an interactive prototyping tool for machine vision and scientific imaging developers With Vision Assistant you can prototype vision applications quickly and test how various vision image processing functions work National Instruments Corporation 1 3 IMAQ PCI 1424 User Manual Chapter 1 Introduction Vision Assistant generates a builder file which is a text descript
14. to the National Instruments Web site at ni com info and enter the info code feedback 1999 2004 National Instruments Corporation All rights reserved Important Information Warranty The IMAQ PCI 1424 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 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 thi
15. 4 device ships in an antistatic package to prevent electrostatic discharge from damaging device components To avoid such damage in handling the device take the following precautions e Ground yourself using a grounding strap or by holding a grounded object such as your computer chassis e Touch the antistatic package to a metal part of your computer chassis before removing the device from the package UN Caution Never touch the exposed pins of connectors e Remove the device from the package and inspect it for loose components or any other signs of damage Notify National Instruments if the device appears damaged in any way Do not install a damaged device in your computer IMAQ PCI 1424 User Manual 2 2 ni com Chapter 2 Configuration and Installation Safety Information Caution The following paragraphs contain important safety information you must follow when installing and operating the device Do not operate the module in a manner not specified in this document Misuse of the module can result in a hazard You can compromise the safety protection built into the module if the module is damaged in any way If the module is damaged return it to National Instruments NI for repair Do not substitute parts or modify the module except as described in this document Use the module only with the chassis modules accessories and cables specified in the installation instructions You must have all covers and filler panels installed
16. A controllers transfer data between the onboard SDRAM memory buffers and the PCI bus Each of these controllers supports scatter gather DMA which allows the DMA controller to reconfigure on the fly Thus the PCI 1424 can perform continuous image transfers directly to either contiguous or fragmented memory buffers Device Configuration NVRAM The PCI 1424 contains onboard nonvolatile RAM NVRAM that configures all registers on power up Start Conditions The PCI 1424 can start acquisitions in a variety of conditions e Software control The PCI 1424 supports software control of acquisition start You can configure the PCI 1424 to capture a fixed number of fields or frames This configuration is useful for capturing a single frame or a sequence of frames e Trigger control You can start an acquisition by enabling external or RTSI bus trigger lines Each of these inputs can start a video acquisition on a rising or falling edge IMAQ PCI 1424 User Manual 3 4 ni com Chapter 3 Hardware Overview Delayed acquisition You can use either software or triggers to start acquisitions instantaneously or after skipping a specific period of time You can use delayed acquisition for posttrigger applications Frame field selection With an interlaced camera and the PCI 1424 in frame mode you can program the PCI 1424 to start an acquisition on any odd or even field Acquisition Window Control You can configure numerous parameters on the P
17. AQ PCI 1424 device meets the essential requirements of applicable European Directives as amended for CE marking as follows Low Voltage Directive safety 73 23 EEC Electromagnetic Compatibility Directive EMC oo eee ee eeeeeeeeereeees 89 336 EEC nye 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 IMAQ PCI 1424 User Manual A 4 ni com Technical Support and Professional Services Visit the following sections of the National Instruments Web site at ni com for technical support and professional services National Instruments Corporation Support Online technical support resources at ni com support include the following Self Help Resources For answers and solutions visit the award winning National Instruments Web site for 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 Free Technical Support All registered users receive free Basic Service which includes access to hundreds of Application Engineers worldwide in the NI Developer Exchange at ni com exchange National Instruments Application Engineers make
18. CI 1424 to control the video acquisition window A brief description of each parameter follows National Instruments Corporation Acquisition window The PCI 1424 allows the user to specify a particular region of active pixels and active lines within the incoming video data The active pixel region selects the starting pixel and number of pixels to be acquired relative to the assertion edge of the horizontal or line enable signal from the camera The active line region selects the starting line and number of lines to be acquired relative to the assertion edge of the vertical or frame enable signal Region of interest The PCI 1424 uses a second level of active pixel and active line regions for selecting a region of interest When you disable the region of interest circuitry the device stores the entire acquisition window in onboard or system memory However when you enable the region of interest circuitry the device acquires only a selected subset of the image frame Interlaced video The PCI 1424 supports both interlaced and non interlaced or progressive scan digital video signals In interlaced mode the PCI 1424 combines the odd and even fields into one contiguous frame for analysis In non interlaced mode each field is treated as an independent frame 3 5 IMAQ PCI 1424 User Manual Signal Connections This chapter describes cable connections for the IMAQ PCI 1424 device 1 0 Connector The PCI 1424 100 pin SC
19. Development Module 1 3 block diagram of IMAQ PCI 1424 3 2 C calibration certificate NI resources B 2 clock signals Pixel Clock signal table 4 3 clocks specifications A 2 Control lt 3 0 gt signal table 4 3 conventions used in the manual v CTS signal table 4 3 D data formatter multiple tap 3 3 Data lt 31 0 gt signal table 4 3 DCD signal table 4 3 Declaration of Conformity NI resources B 1 delayed acquisition start conditions 3 5 diagnostic tools NI resources B 1 DMA controllers 3 4 documentation conventions used in the manual v NI resources B 1 National Instruments Corporation drivers NI resources B 1 DSR signal table 4 3 DTR signal table 4 3 E Enable lt D A gt signal table 4 3 environment specifications A 3 equipment optional 2 2 examples NI resources B 1 external connection specifications A 1 External Trigger lt 3 0 gt signal table 4 3 F frame field selection 3 5 G GND signal table 4 3 H hardware overview acquisition and ROI 3 4 acquisition window control 3 5 block diagram 3 2 board configuration NVRAM 3 4 high speed timing 3 4 LUTs 3 2 multiple tap data formatter 3 3 RS 232 serial interface 3 3 scatter gather DMA controllers 3 4 SDRAM 3 3 start conditions 3 4 trigger control and mapping circuitry 3 3 help technical support B 1 high speed timing circuitry 3 4 IMAQ PCI 1424 User Manual Index
20. I 1424 features a flexible high speed data path optimized for the reception and formatting of video data from digital monochrome and color cameras The block diagram in Figure 3 1 illustrates the key functional components of the PCI 1424 National Instruments Corporation 3 1 IMAQ PCI 1424 User Manual Chapter 3 Hardware Overview lt _ UART Synchronous Dynamic RAM o Memory fe oS n 2 aia Data LUT Data IMAQ SDRAM Data 5 Memory m i Interface F PCI Interface A_ 2 Pixel Clock and Camera Enables and s E Enables 1 terant g Scatter Gather V a Differential DMA Controllers O a TTL o S Converter Q Pixel lt gt S Clock Advanced section Triggerin uisition lt _ ggering and Timing ROI and Control Camera Control lt External Triggers a X 1gg DSi T Sar Figure 3 1 PCI 1424 Block Diagram Signaling The PCI 1424 is available in two different versions The RS 422 TTL version can drive and receive RS 422 and TTL level signals NI IMAQ can control these signals independently for data control and enable lines on the 100 pin connector The LVDS TTL version also known as EIA 644 can drive and receive LVDS and TTL level signals Benefits of LVDS include less power consumption longer cable lengths less noise and higher clock rates LUTs You can configure the PCI 1424 to use either fo
21. IMAQ IMAQ PCI 1424 User Manual High Quality Digital Image Acquisition Device for PCI August 2004 7 NATIONAL 371869C 01 N INSTRUMENTS 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 3262 3599 Canada Calgary 403 274 9391 Canada Ottawa 613 233 5949 Canada Qu bec 450 510 3055 Canada Toronto 905 785 0085 Canada Vancouver 604 685 7530 China 86 21 6555 7838 Czech Republic 420 224 235 774 Denmark 45 45 76 26 00 Finland 385 0 9 725 725 11 France 33 0 1 48 14 24 24 Germany 49 0 89 741 31 30 India 91 80 51190000 Israel 972 0 3 6393737 Italy 39 02 413091 Japan 81 3 5472 2970 Korea 82 02 3451 3400 Malaysia 603 9131 0918 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 7 095 783 68 51 Singapore 65 6226 5886 Slovenia 386 3 425 4200 South Africa 27 0 11 805 8197 Spain 34 91 640 0085 Sweden 46 0 8 587 895 00 Switzerland 41 56 200 51 51 Taiwan 886 2 2528 7227 Thailand 662 992 7519 United Kingdom 44 0 1635 523545 For further support information refer to the Technical Support and Professional Services appendix To comment on National Instruments documentation refer
22. MS BECAUSE EACH END USER SYSTEM IS CUSTOMIZED AND DIFFERS FROM NATIONAL INSTRUMENTS TESTING PLATFORMS AND BECAUSE A USER OR APPLICATION DESIGNER MAY USE NATIONAL INSTRUMENTS PRODUCTS IN COMBINATION WITH OTHER PRODUCTS IN A MANNER NOT EVALUATED OR CONTEMPLATED BY NATIONAL INSTRUMENTS THE USER OR APPLICATION DESIGNER IS ULTIMATELY RESPONSIBLE FOR VERIFYING AND VALIDATING THE SUITABILITY OF NATIONAL INSTRUMENTS PRODUCTS WHENEVER NATIONAL INSTRUMENTS PRODUCTS ARE INCORPORATED IN A SYSTEM OR APPLICATION INCLUDING WITHOUT 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 prod
23. SI type connector connects to all digital video data inputs digital enable inputs camera control outputs RS 232 serial interface and the external trigger signals To access these connections you can build your own custom cable or use one of the optional cables from National Instruments 3 Note Refer to the National Instruments Web site ni com imaq for the latest information on optional cables and the cameras they support Figure 4 1 shows the pinout of the 100 pin SCSI type connector National Instruments Corporation 4 1 IMAQ PCI 1424 User Manual Chapter 4 Signal Connections IMAQ PCI 1424 User Manual Data0 Dai Da Da Da Da Da Da Da Da Da Da Da Con Con Con Con Con Con Con Con Data0 Data1 Data1 Data2 Data2 Data3 Data3 Data4 Data4 Data5 Data5 Data6 Data6 Data7 Data7 Data8 Data8 Data9 Datag a10 a10 aii a11 a12 a12 a13 a13 a14 a14 a15 a15 rol0 rolo rolt roli rol2 rol2 rol3 rol3 EnableA EnableA EnableB EnableB EnableC EnableC EnableD EnableD Pixel Clock Pixel Clock 1 51 2 52 3 53 4 54 5 55 6 56 7 57 8 58 9 59 10 60 11 61 12 62 13 63 14 64 15 65 16 66 17 67 18 68 19 69
24. ace path between LabVIEW LabWindows CVI or a text based programming environment and the IMAQ device The NI IMAQ software kit includes a series of libraries for image acquisition for LabVIEW LabWindows CVI and Measurement Studio which contains libraries for Visual Basic For maximum flexibility and performance NI IMAQ features both high level and low level functions Examples of high level functions include the sequences to acquire images in multi buffer single shot or continuous mode An example of a low level function is configuring an image sequence since it requires advanced understanding of the IMAQ device and image acquisition 1 2 ni com Chapter 1 Introduction NI IMAQ handles many of the complex issues between the computer and the IMAQ device such as programming interrupts and camera control National Instruments Application Software Vision Builder for Automated Inspection NI Vision Builder for Automated Inspection AI is configurable machine vision software that you can use to prototype benchmark and deploy applications Vision Builder AI does not require programming but is scalable to powerful programming environments 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
25. allation Avoid contact between your body and the connector block signal when hot swapping modules Remove power from signal lines before connecting them to or disconnecting them from the module Operate the module at or below installation category marked on the hardware label Measurement circuits are subjected to working voltages and transient stresses overvoltage from the circuit to which they are connected during measurement or test Installation categories establish standard impulse withstand voltage levels that commonly occur in electrical distribution systems The following is a description of installation categories Installation Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage This category is for measurements of voltages from specially protected secondary circuits Such voltage measurements include signal levels special equipment limited energy parts of equipment circuits powered by regulated low voltage sources and electronics Installation Category II is for measurements performed on circuits directly connected to the electrical distribution system This category refers to local level electrical distribution such as that provided by a standard wall outlet for example 115 AC voltage for U S or 230 AC voltage for Europe Examples of Installation Category I are measurements performed on household appliances portable tools and
26. cts malfunctions or service failures caused by owner s failure to follow the National Instruments installation operation or maintenance instructions owner s modification of the product owner s abuse misuse or negligent acts and power failure or surges fire flood accident actions of third parties or other events outside reasonable control Copyright Under the copyright laws this publication may not be reproduced or transmitted in any form electronic or mechanical including photocopying recording storing in an information retrieval system or translating in whole or in part without the prior written consent of National Instruments Corporation Trademarks CVI IMAQ LabVIEW Measurement Studio National Instruments National Instruments Alliance Partner NI ni com NI DAQ NI IMAQ and RTSI are trademarks of National Instruments Corporation Product and company names mentioned herein are trademarks or trade names of their respective companies Members of the National Instruments Alliance Partner Program are business entities independent from National Instruments and have no agency partnership or joint venture relationship with National Instruments Patents For patents covering National Instruments products refer to the appropriate location Help Patents in your software the patents txt file on your CD or ni com patents WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS 1
27. d up to four National Instruments DAQ or IMAQ devices in your computer The RTSI bus can even synchronize multiple IMAQ hardware captures Detailed specifications of the PCI 1424 are in Appendix A Specifications Software Overview Programming the PCI 1424 device requires the NI IMAQ driver software for controlling the hardware and one of the following application software packages for image processing e Vision Builder for Automated Inspection AI for configuring solutions to common inspection tasks e National Instruments Vision Development Module for more customized control over hardware and algorithms The following sections provide an overview of the driver software and the application software For detailed information about individual software packages refer to the documentation specific to the package NI IMAQ Driver Software IMAQ PCI 1424 User Manual The NI IMAQ driver software ships with the PCI 1424 device NI IMAQ has an extensive library of functions you can call from your application programming environment such as routines for video configuration image acquisition continuous and single shot memory buffer allocation trigger control and device configuration NI IMAQ performs all functions required for acquiring and saving images but does not perform image analysis For image analysis functionality refer to the National Instruments Application Software section of this chapter NI IMAQ is also the interf
28. e that brightness A video frame composed of two interleaved fields The number of lines in a field are half the number of lines in an interlaced frame G 2 ni com LUT memory buffer N NI IMAQ NVRAM PCI pixel pixel clock R real time ribbon cable ROI National Instruments Corporation G 3 Glossary Look up table Table containing values used to transform the gray level values of an image For each gray level value in the image the corresponding new value is obtained from the look up table See buffer Driver software for National Instruments IMAQ hardware Nonvolatile RAM RAM that is not erased when a device loses power or is turned off Peripheral Component Interconnect A high performance expansion bus architecture originally developed by Intel to replace ISA and EISA PCI offers a theoretical maximum transfer rate of 133 Mbytes s Picture element The smallest division that makes up the video scan line for display on a computer monitor a pixel s optimum dimension is square aspect ratio of 1 1 or the width equal to the height Divides the incoming horizontal video line into pixels A property of an event or system in which data is processed as it is acquired instead of being accumulated and processed at a later time A flat cable in which the conductors are side by side Region of interest An area of the image from a window displaying the image IMAQ PCI 1424 User Manual Glos
29. g 2 Collecting and measuring the same kinds of electrical signals with A D or DIO devices plugged into a computer and possibly generating control signals with D A and or DIO devices in the same computer National Instruments Corporation G 1 IMAQ PCI 1424 User Manual Glossary DMA driver E external trigger field FIFO frame gamma interlaced IMAQ PCI 1424 User Manual Direct memory access A method by which data can be transferred to and from computer memory from and to a device or memory on the bus while the processor does something else DMA is the fastest method of transferring data to from computer memory Software that controls a specific hardware device such as an image acquisition device A voltage pulse from an external source that triggers an event such as A D conversion For an interlaced video signal a field is half the number of horizontal lines needed to represent a frame of video The first field of a frame contains all the odd numbered lines the second field contains all of the even numbered lines First in first out memory buffer The first data stored is the first data sent to the acceptor FIFOs are used on IMAQ devices to temporarily store incoming data until that data can be retrieved A complete image In interlaced formats a frame is composed of two fields The nonlinear change in the difference between the video signal s brightness level and the voltage level needed to produc
30. install the PCI 1424 1 Verify that the NI IMAQ driver software is installed on your computer 2 Power off and unplug your computer Caution To protect both yourself and the computer from electrical hazards the computer should remain off and unplugged until you finish installing the PCI 1424 device 3 Remove the computer cover Make sure there are no lit LEDs on the motherboard If any are lit wait until they go out before continuing installation 4 Touch the metal part of the power supply case inside the computer to discharge any static electricity that might be on your clothes or body 5 Locate the metal bracket that covers the cut out in the back panel of the chassis for the slot you have selected Remove and save the bracket retaining screw and the bracket cover 6 Line up the PCI 1424 card edge connector with the expansion slot receptacle Using slow evenly distributed pressure press the PCI 1424 straight down until it seats in the expansion slot 7 Reinstall the bracket retaining screw to secure the PCI 1424 to the back panel rail 8 Visually verify the installation 9 Replace the computer cover and plug the computer in National Instruments Corporation 2 5 IMAQ PCI 1424 User Manual Hardware Overview This chapter presents an overview of the hardware functions on your IMAQ PCI 1424 device device and explains the operation of each functional unit making up the PCI 1424 Functional Overview The PC
31. ion containing a recipe of the machine vision and image processing functions This builder file provides a guide you can use for developing applications into any development environment such as LabWindows CVI or Visual Basic using the Vision Assistant machine vision and image processing libraries Using the LabVIEW VI creation wizard Vision Assistant can create LabVIEW VI diagrams that perform the prototype you created in Vision Assistant Using LabVIEW you can add functionality to this generated VI Integration with DAQ Vision and Motion IMAQ PCI 1424 User Manual Platforms that support NI IMAQ also support NI DAQ and a variety of National Instruments DAQ devices This allows integration between IMAQ devices and National Instruments DAQ products With National Instruments IMAQ hardware and Vision Assistant pattern matching software you can quickly and accurately locate objects that vary in size orientation focus and illumination Use National Instruments high performance stepper and servo motion control products with pattern matching software in inspection and guidance applications such as locating alignment markers on semiconductor wafers guiding robotic arms inspecting the quality of manufactured parts and locating cells 1 4 ni com Configuration and Installation This chapter lists what you need to get started acquiring images with your IMAQ PCI 1424 device describes optional equipment and custom cables and explains
32. isit the Worldwide Offices section of ni com niglobal to access the branch office Web sites which provide up to date contact information support phone numbers email addresses and current events IMAQ PCI 1424 User Manual B 2 ni com Glossary A acquisition window The image size specific to a video standard or camera resolution active line region The region of lines actively being stored Defined by a line start relative to the vertical synchronization signal and a line count active pixel region The region of pixels actively being stored Defined by a pixel start relative to the horizontal synchronization signal and a pixel count address Value that identifies a specific location or series of locations in memory API Application programming interface area A rectangular portion of an acquisition window or frame that is controlled and defined by software ASIC Application Specific Integrated Circuit A proprietary semiconductor component designed and manufactured to perform a set of specific functions for specific customer needs buffer Temporary storage for acquired data bus A group of conductors that interconnect individual circuitry in a computer such as the PCI bus typically the expansion vehicle to which I O or other devices are connected DAQ Data acquisition 1 Collecting and measuring electrical signals from sensors transducers and test probes or fixtures and inputting them to a computer for processin
33. red 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 num rique de la classe A respecte toutes les exigences du R glement sur le mat riel 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 Conventions 3 A A A bold italic monospace 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 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 i
34. rrerseeee 1 3 Vision Development Module s ssseseseseresseessrrsreresresessesrrsesresrsseerse 1 3 Intesration With DA Q raro netro oieri e i E NE EAEE T EAA 1 4 Vision and Moun ea E RR AS 1 4 Chapter 2 Configuration and Installation What You Need to Get Started 0 0 eeesccseeescesseesecereveccenseeccessesasonseesevseeseesserenesnees 2 1 Optional Equipment yi osc i ie aaie rE EE E EEA E 2 2 Unpack dipen aai E a E E A E E E RA 2 2 Safety Informations snese tees ekebpaicceied etads cobb seteucanssdateces EE dsives Aeulvhua aevsoatiees 2 3 TrnStallatron sis cetevscessadics sects gatevsies iad saveccestsdecevescitusas sates E OTA 2 5 Chapter 3 Hardware Overview Functional Overviews civ cesdesciee minira ien e EE seed ee E EE 3 1 Signaling nanna E E E R RE T caeasoeds 3 2 LUTS eeren a ARE sud add NEEE RER A EE E E RTAS 3 2 Multiple Tap Data Formatter ccc ccceesseescseeseesessessessessessenseeesesseeeeeaes 3 3 SDRAM i225 tis rr E E Ail aah Meh Ay anda ai Minima wiles 3 3 RS 232 Serial Intertace vijs sstascosess scskigcessccistacaesseisecovdeadesuecastoesuansdistasieteees tas 3 3 Trigger Control and Mapping Circuitry 0 ec ceeeseeseceeeeeeseeeseseeenseesees 3 3 High Speed Timing isis csisssecssacascosastecssessssandaves canes asso o EES a aE Es 3 4 Acquisitiom and ROD iasi ie n a EE aE E EREE ESER 3 4 Scatter Gather DMA Controllers ssssesessseeeseeresesesresresesrrsesresrerrsrenrsresreeeseeet 3 4 Device Configuration
35. s 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 Instruments be liable for any damages arising out of or related to this document or the information contained in it EXCEPT AS SPECIFIED HEREIN NATIONAL INSTRUMENTS MAKES NO WARRANTIES EXPRESS OR IMPLIED AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE CUSTOMER S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF NATIONAL INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA PROFITS USE OF PRODUCTS OR INCIDENTAL OR CONSEQUENTIAL DAMAGES EVEN IF ADVISED OF THE POSSIBILITY THEREOF This limitation of the liability of National Instruments will apply regardless of the form of action whether in contract or tort including negligence Any action against National Instruments must be brought within one year after the cause of action accrues National Instruments shall not be liable for any delay in performance due to causes beyond its reasonable control The warranty provided herein does not cover damages defe
36. s marked on a product refer to the Safety Information secion of Chapter 2 Configuration and Installation 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 When symbol is marked on a product it denotes a component that may be hot Touching this component may result in bodily injury 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 text denotes variables emphasis a cross reference or an introduction to a key concept This font also denotes text that is a placeholder for a word or value that you must supply 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 Contents Chapter 1 Introduction About the IMAQ PCL 1424 areena radeire Heevnitets hee vate ii ret at 1 1 Software OVELvie ws sees cecetes keel E a epee ea 1 2 NI IMAQ Driver Software ienris eiras ie s 1 2 National Instruments Application Software s sseessseesseeeresrsresesrsrrsrsresresree 1 3 Vision Builder for Automated Inspection seseseeeeseereererrsre
37. sary S scatter gather DMA SDRAM SO DIMM T tap transfer rate trigger trigger control and mapping circuitry TTL V VI IMAQ PCI 1424 User Manual A type of DMA that allows the DMA controller to reconfigure on the fly Synchronous dynamic RAM Small outline dual inline memory module A stream of pixels from a camera Some cameras send multiple streams or taps of data over a cable simultaneously to increase transfer rate The rate measured in bytes s at which data is moved from source to destination after software initialization and set up operations The maximum rate at which the hardware can operate Any event that causes or starts some form of data capture Circuitry that routes monitors and drives external and RTSI bus trigger lines You can configure each of these lines to start or stop acquisition on a rising or falling edge Transistor transistor logic Virtual Instrument 1 A combination of hardware and or software elements typically used with a PC that has the functionality of a classic stand alone instrument 2 A LabVIEW software module VI which consists of a front panel user interface and a block diagram program G 4 ni com Index A acquisition and region of interest ROD circuitry 3 4 acquisition start conditions 3 4 acquisition window control active pixel region acquisition window 3 5 interlaced video 3 5 region of interest 3 5 application software Vision
38. sure every question receives an answer For information about other technical support options in your area go to ni com services or contact your local branch at ni com contact Training and Certification Visit ni com training for 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 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 electronic compatibility EMC and product safety You can obtain the DoC for your product by visiting ni com certification B 1 IMAQ PCI 1424 User Manual Appendix B Technical Support and Professional Services e 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 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 v
39. tive high or active low Volat iaisindniad intact 5 V 2 135 A 12 V 250 mA 12 V 100 mA Dimension Sss e etan daveees 106 68 cm x 312 cm 4 2 in x 12 283 in WW eID Hit ce pha eos actupatagrateaasa toga 1 1 kg 0 5 1b The PCI 1424 device is intended for indoor use only Operating temperature 0 to 55 C Storage temperature 00 eee 20 to 70 C Maximum altitude ccccccccceeesseees 2 000 m National Instruments Corporation A 3 IMAQ PCI 1424 User Manual Appendix A Specifications Safety Pollution Degree 0 0 eeeeeeeeseeeseeeeeeeee 2 Relative humidity oer 5 to 90 noncondensing The IMAQ 1428 meets the requirements of the following standards of safety for electrical equipment for measurement control and laboratory use e IEC 61010 1 EN 61010 1 e UL61010 1 e CAN CSA C22 2 No 61010 1 3 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 EMiSSI0OMS ccccecesessesssssssssssseceseesesens EN 55011 Class A at 10 m FCC Part 15A above 1 GHz TMU ds ceseeeeayeees disse haat EN 61326 1997 A2 2001 Table 1 EMC EM1 cccececcceecesesesesessrsrteeeeeens CE C Tick and FCC Part 15 Class A Compliant 3 Note For EMC compliance operate this device with shielded cabling CE Compliance The IM
40. ts Using NI IMAQ you can quickly and easily start your applications without having to program the device at the register level Featuring a high speed data flow path the PCI 1424 is ideal for both industrial and scientific environments As a standalone device the PCI 1424 supports up to 32 bits of differential or TTL level video data four general purpose control lines that can be configured to generate precise timing signals to control digital camera acquisition and four external input output I O lines that you can use as triggers or as high speed digital T O lines If you require more advanced triggering or digital I O lines either digital or analog you can use the PCI 1424 and NI IMAQ with the National Instruments data acquisition DAQ product line A common problem with image acquisition devices is that you cannot easily synchronize several functions to a common trigger or timing event The PCI 1424 uses its Real Time System Integration RTSI bus to solve this problem The RTSI bus consists of the National Instruments RTSI bus interface and ribbon cable to route additional timing and trigger signals 1 Early versions of the PCI 1424 may not support acquisitions at 50 MHz For the exact maximum acquisition clock rate of your PCI 1424 refer to the Maximum Clock Rate indicator in Measurement amp Automation Explorer National Instruments Corporation 1 1 IMAQ PCI 1424 User Manual Chapter 1 Introduction between the PCI 1424 an
41. ucts 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 gov for 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 requi
42. ur 8 bit or two 10 bit to 16 bit lookup tables LUTs to perform LUT operations such as contrast enhancement data inversion gamma manipulation or other nonlinear transfer functions IMAQ PCI 1424 User Manual 3 2 ni com Chapter 3 Hardware Overview Multiple Tap Data Formatter SDRAM Many of the digital cameras on the market send multiple channels or taps of data over the cable simultaneously to increase the frame rate of the camera However the data in each tap may not be transferred in the traditional top left to bottom right direction Also the taps may not transfer data in similar directions The multiple tap data formatting circuitry on the PCI 1424 can reorder the data from up to four 8 bit taps The data from each tap can be independently scanned either from left to right or right to left and top to bottom or bottom to top The PCI 1424 comes with 16 MB of onboard high speed synchronous dynamic RAM SDRAM You can purchase additional SO DIMM memory upgrades from National Instruments SO DIMM upgrades are available in 64 MB and 128 MB densities The PCI 1424 can also use the onboard RAM as a first in first out FIFO buffer so that in some instances the PCI 1424 can capture images larger than the amount of RAM on the device RS 232 Serial Interface You can use the RS 232 serial interface on the 100 pin SCSI type connector to control digital cameras that also have a serial interface for camera control and configuration
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