NI PXI/PCI-1409 User Manual
Contents
1. Glossary U UV plane V V value VCO VI video line VSYNC W white reference level YUV NI PXI PCI 1409 User Manual See YUV Volts The grayscale intensity of a color pixel computed as the average of the maximum and minimum red green and blue values of that pixel Voltage controlled oscillator An oscillator that changes frequency depending on a control signal Use VCO in a phase locked loop to generate a stable pixel clock 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 A video line consists of a horizontal synchronization signal back porch active pixel region and a front porch Vertical synchronization signal The synchronization pulse generated at the beginning of each video field that tells the video monitor when to start a new field The level that defines what is white for a particular video system See also black reference level A representation of a color image used for the coding of NTSC or PAL video signals The luma information is called Y while the chroma information is represented by two components U and V representing the coordinates in a color plane G 10 ni com Index Numerics 10 bit ADC 2 2 10 bit LUT 2 3 A acquisition and region of2. and external signals To access these connections you can build your own custom cable or use one of the optional National Instruments cables 3 Note Ifyou are using the VIDEOO connection on the 68 pin VHDCI connector you must unplug the BNC cable National Instruments Corporation 3 3 NI PXI PCI 1409 User Manual Chapter 3 Signal Connections NI PXI PCI 1409 User Manual Figure 3 3 shows the pinout of the 68 pin VHDCI connector VIDEO 0 VIDEO 0 VIDEO 1 VIDEO 1 RESERVED RESERVED RESERVED RESERVED DGND RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED HSYNCIN VSYNCIN CSYNCIN CSYNCOUT CTRL 0 CTRL 1 CTRL 2 CTRL 3 DGND DGND DGND DGND CHASSISGND PCLKIN DGND PCLKOUT w w wje eS N wo wo fo N o we N Sg MIN ajo N A N N N N ye fo k i N O oa A wo M r oj o P AIAN VIDEO 2 VIDEO 2 VIDEO 3 VIDEO 3 RESERVED RESERVED RESERVED RESERVED DGND RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED RESERVED HSYNCIN VSYNCIN CSYNCIN CSYNCOUT CTRL 0 CTRL 1 CTRL 2 CTRL 3 TRIG 0 TRIG 1 TRIG 2 TRIG 3 CHASSISGND PCLKIN DGND PCLKOUT Figure 3 3 1 0 Conne
3. Figure 1 1 for the location of the NI 1409 W1 jumper and the connectors discussed in this manual F f L oo oo oa oo oo oo oo oOo oo oo oa oo ao ao oo oo 0o NATIONAL INSTRUMENTS O o umu m ojojojoo o o olojo Mae PCI 1409 COPYRIGHT 2000 1 68 Pin VHDCI Connector 2 BNC Connector 3 W1 Jumper 4 RTSI Bus Connector Figure 1 1 NI PCI 1409 Parts Locator Diagram Using PXI with CompactPCI NI PXI PCI 1409 User Manual Using PXI compatible products with standard CompactPCI products is an important feature provided by the PXI Specification Revision 1 0 If you use a PXI compatible plug in device in a standard CompactPCI chassis you cannot use PXI specific functions but you can still use the basic plug in device functions For example the RTSI bus on the NI PXI 1409 is available in a PXI chassis but not in a CompactPCI chassis The CompactPCI specification enables vendors to develop sub buses that coexist with the basic PCI interface on the CompactPCI bus Compatible operation is not guaranteed be
4. Instruments timing bus that connects image and data acquisition boards directly by means of connectors on top of the boards for precise synchronization of functions The amount of white added to a pure color Saturation relates to the richness of a color A saturation of zero corresponds to a pure color with no white added Pink is a red with low saturation Circuitry that scales down the resolution of a video signal A type of DMA that allows the DMA controller to reconfigure on the fly Static RAM A post processing algorithm that allows the acquisition of high quality color images generated either by an RGB or composite NTSC or PAL camera using a monochrome video acquisition board Tells the display where to put a video picture The horizontal sync indicates the picture s left to right placement and the vertical sync indicates top to bottom placement RAM installed on a personal computer and used by the operating system as contrasted with onboard RAM 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 NI PXI PCI 1409 User Manual
5. 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 National Instruments respects the intellectual property of others and we ask our users to do the same NI software is protected by copyright and other intellectual property laws Where NI software may be used to reproduce software or other materials belonging to others you may use NI software only to reproduce materials that you may reproduce in accordance with the terms of any applicable license or other legal restriction Trademarks National Instruments NI ni com and LabVIEW are trademarks of National Instruments Corporation Refer to the Terms of Use section on ni com legal for more information about National Instruments trademarks Other 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 Instrume
6. PXI PCI 1409 User Manual 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 Al registered users receive free Basic Service which includes access to hundreds of Application Engineers worldwide in the NI Discussion Forums at ni com forums National 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 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 Al
7. data in the lookup table LUT after gain correction and any digital filtering has occurred National Instruments Corporation 2 5 NI PXI PCI 1409 User Manual Chapter 2 Hardware Overview Clamping The NTSC camera file sets the default values of Clamp Start and Clamp Stop to 106 and 116 respectively These settings place the clamp pulse which restores the DC level of the video signal between the color burst signal and the beginning of active video Because some cameras deviate from the exact timing required by the NTSC standard the clamping pulse may intersect either the color burst or the active video portions of the signal If this occurs an acquired image may appear to have dark and light bands as in the following image To prevent this problem open Measurement amp Automation Explorer MAX and navigate to the Advanced page of the camera file property page Use the following guidelines to adjust the Clamp Start and Clamp Stop values until the image is corrected e Minimum Clamp Start is 100 e Maximum Clamp Stop is 120 e Difference between Clamp Start and Clamp Stop is at least 10 NI PXI PCI 1409 User Manual 2 6 ni com Signal Connections This chapter describes cable connections for the NI 1409 devices BNC Connector The BNC external connector supplies an immediate connection RSE mode only to the 1409 device VIDEOO input To use the VIDEOO connection on the 68 pin VHDCI I O connector you must connect VIDEO0
8. feedback 2000 2007 National Instruments Corporation All rights reserved Important Information Warranty The NI PXI PCI 1409 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 this document is accurate The document has been carefully reviewed for technical ac
9. front porch ft function G gamma genlock NI PXI PCI 1409 User Manual Electrically erasable programmable read only memory ROM that can be erased with an electrical signal and reprogrammed 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 image acquisition devices to temporarily store incoming data until that data can be retrieved An ADC whose output code is determined in a single step by a bank of comparators and encoding logic A complete image In interlaced formats a frame is composed of two fields The area of a video signal between the start of the horizontal blank and the start of the horizontal synchronization signal HS YNC Feet A set of software instructions executed by a single line of code that may have input and or output parameters and returns a value when executed The nonlinear change in the difference between the video signal s brightness level and the voltage level needed to produce that brightness The process of synchronizing a video source to the signal from a separate video source The circuitry aligns
10. interest control 2 4 ADC 10 bit 2 2 analog bandwidth control circuitry 2 2 analog front end considerations 2 5 antichrominance filter 2 3 BNC connector avoiding VIDEOO connection with 68 pin VHDCI connector note 3 3 pin assignments figure 3 2 signal connections 3 1 C cables custom cable specifications A 1 calibration certificate NI resources B 2 CHASSIS_GND signal table 3 6 CompactPCI specifications 1 2 composite synchronization See CSYNC configuration parts locator diagram 1 2 3 2 conventions used in the manual v CSYNC CSYNC mux 2 3 external acquisition mode 2 4 genlock and synchronization circuitry 2 3 CSYNCIN signal table 3 5 CSYNCOUT signal table 3 5 National Instruments Corporation l 1 CTRL lt 3 0 gt signal table 3 6 custom cable specifications A 1 D Declaration of Conformity NI resources B 1 DGND signal table 3 6 diagnostic tools NI resources B 1 DMA controllers 2 3 documentation conventions used in the manual v NI resources B 1 drivers NI resources B 1 E examples NI resources B 1 external lock mode description 2 4 F front end considerations 2 5 functional overview 2 1 G gain and offset circuitry programmable 2 2 H hardware overview 10 bit LUT 2 3 acquisition and region of interest control 2 4 acquisition modes 2 4 block diagram 2 2 NI PXI PCI 1409 User Manual Index CSYNC mux 2 3 digital antichromina
11. the data transfer The 16 MB of SDRAM also allows you to acquire entire images into onboard memory when necessary The NI 1409 includes four external triggers four camera control signals seven RTSI bus triggers and six video synchronization signals National Instruments Corporation 2 1 NI PXI PCI 1409 User Manual Chapter 2 Hardware Overview The block diagram in Figure 2 1 illustrates the key functional units of the NI 1409 lt RTSI Bus gt 4 Camera Control Lines 4 External Triggers External Clock Generation Circuitry Digital Input Output External PCLK HSYNC VSYNC Aspect Ratio Correction Genlock Circuit HSYNC VSYNC External CSYNC and SYNC Mux PCLK Acquisition and Region of Interest gt Control 68 pin VHDIC Connector PCI Bus Programmable Gain and Offset Analog Digital Bandwidth Filter Control and Circuitry LUT PCI Interface and Scatter Gather DMA Controller Onboard Memory and Control Circuitry Figure 2 1 NI 1409 Block Diagram Video Multiplexer The video multiplexer routes one of the four AC coupled video inputs to the 10 bit ADC circuitry The input impedance at the input to the board is 75 Q Programmable Gain and Offset The NI 1409 uses programmable gain and offset circuitry to optimize the input signal range Analog Bandwidth Control Circuitry You can
12. to the generated VI Integration with DAQ and Motion Control Platforms that support NI IMAQ also support NI DAQ and a variety of National Instruments DAQ devices This allows for integration between image acquisition devices and DAQ devices 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 National Instruments Corporation 1 5 NI PXI PCI 1409 User Manual Hardware Overview This chapter describes the features of the NI 409 device and includes information about acquisition modes analog front end considerations and clamping Functional Overview The NI 1409 features a high speed data path optimized for the acquisition and formatting of video data from analog cameras The NI 1409 can acquire from RS 170 NTSC CCIR PAL VGA and progressive scan cameras as well as from non standard cameras such as line scan cameras The NI 1409 digitizes analog video signals to 8 or 10 bits of resolution at sampling frequencies up to 40 MHz The NI 1409 has a factory calibrated gain circuit to improve measurement accuracy and board to board consistency It uses a PCI interface for high speed data transfer 16 MB of SDRAM for data buffering and region of interest control circuitry for optimizing
13. C 1 The number of rows and columns of pixels An image composed of m rows and n columns has a resolution of m x n This image has n pixels along its horizontal axis and m pixels along its vertical axis 2 The smallest signal increment that can be detected by a measurement system Resolution can be expressed in bits proportions or a percentage of full scale For example a system has 12 bit resolution one part in 4 096 resolution and 0 0244 percent of full scale Color encoding scheme using red green and blue RGB color information where each pixel in the color image is encoded using 32 bits 8 bits for red 8 bits for green 8 bits for blue and 8 bits for the alpha value unused A flat cable in which the conductors are side by side Region of interest 1 An area of the image that is graphically selected from a window displaying the image This area can be used focus further processing 2 A hardware programmable rectangular portion of the acquisition window Referenced single ended All measurements are made with respect to a common reference measurement system or a ground Also called a grounded measurement system G 8 ni com RTSI bus S saturation scaling down circuitry scatter gather DMA SRAM StillColor sync system RAM T transfer rate trigger trigger control and mapping circuitry TTL National Instruments Corporation G 9 Glossary Real Time System Integration Bus The National
14. NCLUDING 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 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 t
15. NI Vision NI PXI PCI 1409 User Manual High Quality Monochrome Image Acquisition Device February 2007 lt 7 NATIONAL 372811C 01 IE 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 800 433 3488 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 41190000 Israel 972 0 3 6393737 Italy 39 02 413091 Japan 81 3 5472 2970 Korea 82 02 3451 3400 Lebanon 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 7 495 783 68 51 Singapore 1800 226 5886 Slovenia 386 3 425 42 00 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 02 2377 2222 Thailand 662 278 6777 Turkey 90 212 279 3031 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 to the National Instruments Web site at ni com info and enter the info code
16. a a a ee anos a a aa ee 1 3 NI IMAQ Driver Software ccccccsccecesscceesneeessneeeseeeessseeesseeesseeeessneeeseaeees 1 3 National Instruments Application Software ssseseesseessereresrsrrsresesresrsrrsresre 1 4 Vision Builder for Automated Inspection ecceeeeeceeeneeeseeeeeeeeaee 1 4 Vision Development Module uu eee eseeseeseceseeseeseeeseseeeeseesees 1 5 Integration with DAQ and Motion Control eee ec eeeeseeeeceeeeeeeseseeeeaee 1 5 Chapter 2 Hardware Overview Functional Qvervie Winris gir ueue e e e iie a a i cass iestesduede cvtepaveny 2 1 Video Multiplexer rninn a a hich eae A a RR de 2 2 Programmable Gain and Offset ee sseseeeessseessseeesesrerestsresresrnesrnsrsrrsresestse 2 2 Analog Bandwidth Control Circuitry eessseseseeeseessseereresrrersresrrsrsrrsrsresrereseee 2 2 TOSBit ADC oriei ne ae saaara aaa a tale ad pe Eaa EEDA Ene EEEa deat 2 2 Digital Filter and LU Darsini ee E AR E EA EAR E 2 3 Onboard Memory setanin aaa aA EEE E A vege eased A A 2 3 Scatter Gather DMA Controllers ssssesesseeeeseereesesreseeresresesrrsrrsrsreereresreersreet 2 3 POD INterlace a oraaa aena ich vedas heats EIRE Eana E ae in 2 3 Genlock Circuit and SYNC Mux ssssesessessseesssrsssrsresresreresrsresresensenresesresresente 2 3 Acquisition and Region of Interest ROD Control eee eee eeeeee enero 2 4 RST BUs E E EEE E A eee aad Dabs ids eee ee 2 4 Digital Input Output Circuitry 2 eee eeeceeceecee
17. code from a high level language such as Basic C or Pascal by reading one line at a time and executing the specified operation A computer signal indicating that the CPU should suspend its current task to service a designated activity The relative priority at which a device can interrupt Interrupt request See interrupt NI PXI PCI 1409 User Manual Glossary L line count LSB luma luminance LUT MB Mbytes s memory buffer memory window MSB NI PXI PCI 1409 User Manual Kilo The standard metric prefix for 1 000 or 103 used with units of measure such as volts hertz and meters Kilo The prefix for 1 024 or 2 used with B in quantifying data or computer memory The total number of horizontal lines in the picture Least significant bit The brightness information in the video picture The luma signal amplitude varies in proportion to the brightness of the video signal and corresponds exactly to the monochrome picture See luma Lookup 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 lookup table Meters 1 Mega the standard metric prefix for 1 million or 10 when used with units of measure such as volts and hertz 2 Mega the prefix for 1 048 576 or 220 when used with B to quantify data or computer memory Megabyte of memory A unit for data transfer that mean
18. control circuitry 2 4 RTSI bus 2 4 ni com S scatter gather DMA controllers 2 3 signal connections BNC connector 3 1 I O connector 3 3 pin assignments figure 3 4 signal descriptions table 3 5 software NI resources B 1 NI IMAQ driver software 1 3 Vision Builder for Automated Inspection 1 4 Vision Development Module 1 5 software programming choices National Instruments NI Vision 1 4 NI IMAQ driver software 1 3 standard acquisition mode 2 4 support technical B 1 SYNC mux 2 3 synchronization circuitry 2 3 T technical support B 1 training and certification NI resources B 1 TRIG lt 3 0 gt signal table 3 6 troubleshooting NI resources B 1 National Instruments Corporation l 3 Index V vertical synchronization See VSYNC VHDCI connector See I O connector video mux 2 2 VIDEO lt 3 1 gt signal table 3 5 VIDEO signal avoiding 68 pin VHDCI connector with BNC connection note 3 3 VIDEO0z signal table 3 5 VSYNC genlock and synchronization circuitry 2 3 PCLK HSYNC VSYNC mux 2 3 VSYNCING signal table 3 5 W Web resources B 1 NI PXI PCI 1409 User Manual
19. ctor Pin Assignments 3 4 ni com Chapter 3 Signal Connections Digital 1 0 Connector Signal Connection Descriptions Table 3 1 describes each signal connection on the 68 pin VHDCI connector Table 3 1 1 0 Connector Signals Signal Name Description VIDEOO VIDEOO supports RSE connection only To operate in RSE mode you must connect VIDEO0 to DGND When you use VIDEO0 or VIDEOO you must disconnect the BNC connector VIDEO lt 3 1 gt VIDEO lt 3 1 gt allows for a DIFF or RSE connection to video channels 1 2 and 3 To operate in RSE mode connect VIDEO lt 3 1 gt to DGND PCLKIN Use PCLKIN when the NI 1409 is in external lock mode In this mode PCLKIN represents the A D sampling clock You can select PCLKIN to be either TTL or RS 422 mode and program its polarity through software In RS 422 mode both PCLKIN and PCLKIN receive the PCLK signal PCLKOUT Use PCLKOUT when your camera requires an external pixel clock source The NI 1409 can generate variable pixel clock frequencies between 11 MHz and 40 MHz You can set PCLKOUTS through your software in TTL and RS 422 modes HSYNCIN Use HSYNCIN when the NI 1409 is in external lock mode HSYNC is a synchronization pulse produced at the beginning of each video scan line that keeps the video monitor horizontal scan rate in step with the transmission of each new line You can set HSYNCIN for either TTL or RS 422 mode and program its polarity thro
20. curacy 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 defects malfunctions or service failures caused by owner s failure to follow the
21. d which is similar in function to a digital I O line or to contain specific pulse widths or internal status signals by using the onboard events CTRL lt 3 0 gt Use the control lines on the NI PCI 1409 to control camera features and timing information such as generating integration or shutter pulses You can generate either static or dynamic signals and either TTL or differential signals on these lines DGND DGND is a direct connection to a digital ground on the NI 1409 CHASSIS_GND CHASSIS_GND is a direct connection to the computer s chassis which is grounded through the power cord NI PXI PCI 1409 User Manual 3 6 ni com Custom Cables This appendix lists specifications for building custom cables to use with the NI 1409 device Cable Specification National Instruments offers cables and accessories for you to connect to video sources trigger sources or synchronization sources Use the following guidelines when developing your own cables e For the video inputs use a 75 Q shielded coaxial cable e For the digital triggers and synchronization signals use twisted pairs for each signal For information about connector pin assignments refer to the Digital I O Connector section of Chapter 3 Signal Connections Connector Specifications e Video and sync signals 75 Q impedance e Trigger signalsk TTL e Type 75 Q BNC or 68 pin VHDCI receptacle National Instruments Corporation A 1 NI
22. d with a bit or signal name for example AO lt 3 0 gt 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 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 akey concept Italic text 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 NI 1409 refers to the NI PXI PCI 1409 image acquisition device Contents Chapter 1 Introduction About the NI 1409 errre nse dea era a a aee e ceadecsteg dase este stuns 1 1 Using PXI with CompactPCI suresnnnirim eii a ibs dace th ladies A a 1 2 Software Oyeme W ranan a a a E
23. dge You also can map onboard signals such as HSYNC VSYNC ACQUISTION_IN_PROGRESS and ACQUISITION_DONE to these lines The camera control lines provide a means to generate deterministic signals for triggering cameras strobe lights or other timing critical applications This module also contains an external clock generation circuit you can use as the source clock for a line scan camera 3 Note The NI 1409 does not support pixel clock output on the trigger lines Acquisition Modes NI PXI PCI 1409 User Manual The NI 1409 supports the following five video acquisition modes e Standard Mode In standard mode the NI 1409 receives an incoming composite video signal from the external BNC or 68 pin VHDCI connector and generates CSYNC HSYNC VSYNC and PCLK signals The VHDCI connector outputs the generated CSYNC signal to synchronize other image acquisition devices or cameras e CSYNC External Mode In CYSNC external mode the NI 1409 receives an incoming video signal composite or luminance and an external CSYNC signal from the external connector and generates HSYNC VSYNC and PCLK signals External Lock Mode In external lock mode the NI 1409 receives HSYNC VSYNC and PCLK signals from the camera and uses these 2 4 ni com Chapter 2 Hardware Overview signals to acquire the video signals directly You can use this mode to acquire from a line scan camera e External HSYNC VSYNC Mode In external HS YNC VSYNC mode th
24. e NI 1409 receives the external HSYNC and VSYNC from the connector and internally generates the PCLK signal The NI 1409 genlock circuitry locks to the external HSYNC and VSYNC signals You can use this mode to acquire from VGA monitors 640 x 480 resolution External HSYNC VSYNC HLOCK only Mode In external HSYNC VSYNC HLOCK only mode the NI 1409 receives the external HSYNC and VSYNC signals and internally generates the PCLK signal In this mode the NI 1409 genlock circuitry uses only the HSYNC signal for locking You can use this mode to acquire from asynchronously reset cameras that output a continuous HSYNC Analog Front End Considerations The analog front end of the NI 1409 features a calibrated gain circuit programmable DC restore circuit and 10 bit ADC as shown in Figure 2 2 Analog Video xk Digital Gain 10 or 8 bit DC restore ADC Mm Correction L Filtering and LUT 10 Bit 8 Bit Mode Figure 2 2 NI 1409 Analog Front End The NI 1409 always digitizes the incoming video signal to 10 bits of resolution In 10 bit mode the NI 1409 has four fixed full scale ranges for calibrating the gain for each range Because the nominal full scale ranges are 0 20 0 35 0 70 and 1 40 V the gain is not continuously variable in this mode To maintain compatibility with other analog image acquisition devices the NI 1409 has an 8 bit mode that converts the 10 bit data from the ADC to 8 bit
25. e of the horizontal synchronization signal HSYNC and the active video information The level that represents the darkest an image can get See also white reference level Temporary storage for acquired data 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 Celsius High speed processor memory that buffers commonly used instructions or data to increase processing throughput Comite Consultatif International des Radiocommunications A committee that developed standards for video signals Also used to describe signals boards and cameras that adhere to the CCIR standards The color information in a video signal See chroma Complementary metal oxide semiconductor Refers to the core specification defined by the PCI Industrial Computer Manufacturer s Group PICMG Device that transforms a signal from one form to another For example analog to digital converters ADCs for analog input and digital to analog converters DACs for analog output G 2 ni com CPU CSYNC D A DAC DAQ dB DC default setting DMA DRAM driver dynamic range National Instruments Corporation G 3 Glossary Central processing unit Composite synchronization signal Signals in a color video system that multiplex all picture information into a single signal such as NTSC PAL or SECAM Dig
26. eplace ISA and EISA PCI offers a theoretical maximum transfer rate of 132 Mbytes s Pixel clock signal Times the sampling of pixels on a video line The ratio of the active pixel region to the active line region For standard video signals like RS 170 or CCIR the full size picture aspect ratio normally is 4 3 1 33 The ratio between the physical horizontal size and the vertical size of the region covered by the pixel An acquired pixel should optimally be square thus the optimal value is 1 0 but typically it falls between 0 95 and 1 05 depending on camera quality NI PXI PCI 1409 User Manual Glossary pixel clock pixel count PLL PXI R relative accuracy resolution RGB ribbon cable ROI RSE NI PXI PCI 1409 User Manual Divides the incoming horizontal video line into pixels The total number of pixels between two horizontal synchronization signals HSYNCs The pixel count determines the frequency of the pixel clock Phase locked loop Circuitry that provides a very stable pixel clock that is referenced to another signal such as an incoming horizontal synchronization signal HSYNC PCI eXtensions for Instrumentation An open specification that builds on the CompactPCI specification by adding instrumentation specific features A measure in LSB of the accuracy of an ADC it includes all nonlinearity and quantization errors but does not include offset and gain errors of the circuitry feeding the AD
27. ercial 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 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 lt gt bold italic monospace NI 1409 The following conventions are used in this manual Angle brackets that contain numbers separated by an ellipsis represent a range of values associate
28. esseeseceseeaeenseeaseneesseenees 2 4 ACQUISITION Mod s serei ea Ea a ER E AE AEEA ea T EEE iS 2 4 Analog Front End Considerations sseesseeseeesseerssesrereerestsrestsestesrsrenteresresrsrenreseneeses 2 5 10 Bit 8 Bit Mode craon hia aig A Paden a ies 2 5 Clampin B22 ses ies ove Saale ees ee a ae dvea neces ede cvseh sues scogsberckscvente eee e a cvtevevesy 2 6 Chapter 3 Signal Connections BING Comme ctor aces anen cup sdind e on odlat eit cae Deetetebi pete E A EEE E EE 3 1 Digital VO Comme ctor sis sevsestsssievoseesbeshieaedessnstennadhivates cons E E a dtu 3 3 Digital I O Connector Signal Connection Descriptions 0 0 0 0 eens 3 5 National Instruments Corporation vij NI PXI PCI 1409 User Manual Contents Appendix A Custom Cables Appendix B Technical Support and Professional Services Glossary Index NI PXI PCI 1409 User Manual viii ni com Introduction This chapter describes the NI PXI PCI 1409 NI 1409 device and your software programming choices About the NI 1409 The NI 1409 is a high accuracy monochrome image acquisition device for PXI PCI or CompactPCI chassis that support RS 170 CCIR NTSC and PAL video standards as well as some nonstandard cameras from any of four input sources The NI 1409 features a 10 bit analog to digital converter ADC that converts video signals to digital formats The NI 1409 device acquires images in real time and stores them in onboard frame memory or t
29. essing and analysis library of more than 270 functions for common machine vision tasks such as e Pattern matching e Particle analysis e Gauging e Taking measurements e Grayscale color and binary image display You can use the Vision Development Module functions individually or in combination With the Vision Development Module you can acquire display and store images as well as perform image analysis and processing 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 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 applications in any ADE 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 block diagrams that perform the prototype you created in Vision Assistant You can then use LabVIEW to add functionality
30. his 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 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 comm
31. ital to analog Digital to analog converter An electronic device often an integrated circuit that converts a digital number into a corresponding analog voltage or current Data acquisition 1 Collecting and measuring electrical signals from sensors transducers and test probes or fixtures and inputting them to a computer for processing 2 Collecting and measuring the same kinds of electrical signals with A D or DIO boards plugged into a computer and possibly generating control signals with D A and or DIO boards in the same computer Decibel The unit for expressing a logarithmic measure of the ratio of two signal levels dB 20log V1 V2 for signals in volts Direct current A default parameter value recorded in the driver In many cases the default input of a control is a certain value often 0 Direct memory access A method by which data can be transferred between computer memory and 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 Dynamic RAM Software that controls a specific hardware device such as an image or data acquisition device The ratio of the largest signal level a circuit can handle to the smallest signal level it can handle usually taken to be the noise level normally expressed in decibels NI PXI PCI 1409 User Manual Glossary E EEPROM external trigger field FIFO flash ADC frame
32. 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 which requires advanced understanding of the image acquisition device and image acquisition National Instruments Application Software NI PXI PCI 1409 User Manual This section describes the National Instruments application software packages you can use to analyze and process the images you acquire with the NI 1409 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 for use in LabVIEW LabWindows CVI and Measurement Studio Vision Builder AI does not require programming but it 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 tasks With Vision Builder AI you can migrate the configured inspection to LabVIEW extending the capabilities of your applications if necessary 1 4 ni com Chapter 1 Introduction Vision Development Module The Vision Development Module is an image acquisition proc
33. liance 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 NI PXI PCI 1409 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 visit 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 NI PXI PCI 1409 User Manual B 2 ni com Glossary A D AC acquisition window active line region active pixel region ADC address ANSI antichrominance filter API area array ASIC aspect ratio National Instruments Corporation G 1 Amperes Analog to digital Alternating current The image size specific to a video standard or camera res
34. nce filter 2 3 functional overview 2 1 genlock and synchronization circuitry 2 3 PCI Interface 2 3 PCLK HSYNC VSYNC mux 2 3 programmable gain and offset 2 2 RTSI bus 2 4 scatter gather DMA controllers 2 3 video mux 2 2 help technical support B 1 HSYNC genlock and synchronization circuitry 2 3 PCLK HSYNC VSYNC mux 2 3 HSYNCINz signal table 3 5 instrument drivers NI resources B 1 integration with DAQ and motion control 1 5 T O connector avoiding VIDEOO connection with BNC connector 3 3 custom cable specifications A 1 pin assignments figure 3 4 signal descriptions table 3 5 K KnowledgeBase B 1 L LabVIEW Vision Builder AI 1 4 lock mode external 2 4 lookup table 10 bit LUT 2 3 NI PXI PCI 1409 User Manual l 2 National Instruments support and services B 1 NI 1405 software programming choices 1 3 NI support and services B 1 P parts locator diagram 1 2 3 2 PCI interface 2 3 PCLK genlock and synchronization circuitry 2 3 PCLK HSYNC VSYNC mux 2 3 PCLKIN signal table 3 5 PCLKOUT signal table 3 5 pin assignments BNC connector figure 3 2 T O connector figure 3 4 pixel clock See PCLK programmable gain and offset circuitry 2 2 programming examples NI resources B 1 PXI PCI 1409 devices See also hardware overview features and overview 1 1 PXI 1409 device See also PXI PCI 1409 devices using with CompactPCI 1 2 R region of interest
35. nts 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 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 I
36. olution The region of lines actively being stored Defined by a line start relative to the vertical synchronization signal VSYNC and a line count The region of pixels actively being stored Defined by a pixel start relative to the horizontal synchronization signal HSYNC and a pixel count Analog to digital converter An electronic device often an integrated circuit that converts an analog voltage to a digital value Value that identifies a specific location or series of locations in memory American National Standards Institute Removes the color information from the video signal Application programming interface A rectangular portion of an acquisition window or frame that is controlled and defined by software Ordered indexed set of data elements of the same type Application Specific Integrated Circuit A proprietary semiconductor component designed and manufactured to perform a set of specific functions for specific customer needs The ratio of a picture or image s width to its height NI PXI PCI 1409 User Manual Glossary back porch black reference level buffer bus cache CCIR chroma chrominance CMOS CompactPCI conversion device NI PXI PCI 1409 User Manual Bit One binary digit either 0 or 1 Byte Eight related bits of data an 8 bit binary number Also denotes the amount of memory required to store one byte of data The area of the video signal between the rising edg
37. omized control over hardware and algorithms The following sections provide an overview of the driver software and application software For detailed information about individual software packages refer to the documentation specific to the package NI IMAQ Driver Software The NI 1409 ships with NI Vision Acquisition Software which includes the NI IMAQ driver software NI IMAQ has an extensive library of functions such as routines for video configuration continuous and single shot image acquisition memory buffer allocation trigger control National Instruments Corporation 1 3 NI PXI PCI 1409 User Manual Chapter 1 Introduction and device configuration you can call from your application development environment ADE NI IMAQ handles many of the complex issues between the computer and the image acquisition device such as programming interrupts and camera control 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 interface path between the NI 1409 and LabVIEW LabWindows CVI or a text based programming environment The NI IMAQ software kit includes a series of image acquisition libraries for LabVIEW LabWindows CVI and Measurement Studio which contains libraries for Microsoft Visual Basic NI IMAQ features both high level and low
38. ransfers them directly to system memory The NI 1409 is easy to install and configure The NI 1409 ships with NI Vision Acquisition Software which includes NI IMAQ the National Instruments driver software you can use to directly control the NI 1409 and other National Instruments image acquisition devices With NI IMAQ you can quickly and easily start your applications without having to program the device at the register level As a standalone device the NI 1409 supports four general purpose control lines that are configurable to generate precise timing signals for controlling camera acquisition The NI 1409 also supports four video sources and four external I O lines to use as triggers or digital I O lines Easily synchronizing several functions to a common trigger or timing event is acommon challenge with image acquisition devices The NI 1409 uses its Real Time System Integration RTST bus to solve this problem The RTSI bus uses the National Instruments RTSI bus interface and ribbon cable to route additional timing and trigger signals between the NI 1409 and up to four National Instruments data acquisition DAQ Motion Control or image acquisition devices The RTSI bus can even synchronize multiple image acquisition device hardware captures For detailed NI 1409 specifications refer to Getting Started with the NI PXI PCI 1409 National Instruments Corporation 1 1 NI PXI PCI 1409 User Manual Chapter 1 Introduction Refer to
39. rated circuit ASIC the PCI MITE The PCI interface can transfer data at a maximum rate of 132 MB s in bus master mode Genlock Circuit and SYNC Mux The genlock circuit receives the incoming video signal and generates PCLK HSYNC and VSYNC signals for use by the acquisition and control circuitry The NI 1409 device can lock to the standard RS 170 NTSC and CCIR PAL video signals as well as progressive scan and VGA 640 x 480 resolution signals The genlock circuit on the NI 1409 can also lock to external HSYNC and VSYNC or CSYNC signals National Instruments Corporation 2 3 NI PXI PCI 1409 User Manual Chapter 2 Hardware Overview Acquisition and Region of Interest ROI Control RTSI Bus The acquisition and region of interest control circuitry routes the active pixels from the 10 bit ADC to the onboard memory The NI 1409 can perform ROI and scaling on all video lines Pixel and line scaling transfers certain multiples two four or eight of pixels and lines to onboard memory The seven trigger lines on the RTSI bus provide a flexible interconnection scheme between multiple image acquisition devices as well as between National Instruments DAQ or Motion Control devices Digital Input Output Circuitry The digital input output I O circuitry routes monitors and drives the external trigger lines RTSI bus lines and camera control lines You can use the trigger lines to start or stop an acquisition on a rising or falling e
40. s 1 million or 10 bytes s See buffer Continuous blocks of memory that can be accessed quickly by changing addresses on the local processor Most significant bit G 6 ni com MTBF mux N NI IMAQ noninterlaced NTSC number of planes in an image NVRAM PAL PCI PCLK picture aspect ratio pixel aspect ratio National Instruments Corporation G 7 Glossary Mean time between failure Multiplexer A switching device with multiple inputs that selectively connects one of its inputs to its output Driver software for National Instruments image acquisition hardware A video frame where all the lines are scanned sequentially instead of divided into two frames as in an interlaced video frame National Television Standards Committee The committee that developed the color video standard used primarily in North America which uses 525 lines per frame See also PAL The number of arrays of pixels that compose the image A gray level or pseudo color image is composed of one plane while an RGB image is composed of three planes one for the red component one for the blue and one for the green Nonvolatile RAM RAM that is not erased when a device loses power or is turned off Phase Alternation Line One of the European video color standards PAL uses 625 lines per frame See also NTSC Peripheral Component Interconnect A high performance expansion bus architecture originally developed by Intel to r
41. select either the full bandwidth of 30 MHz or a reduced bandwidth of 9 MHz The 9 MHz bandwidth setting is available using a 5th order Butterworth lowpass filter 10 Bit ADC The 10 bit ADC digitizes the conditioned video signal NI PXI PCI 1409 User Manual 2 2 ni com Chapter 2 Hardware Overview Digital Filter and LUT Onboard Memory The digital filter removes chrominance from a composite color video signal that conforms to either PAL or NTSC The output of the digital filter passes through the 1 024 x 10 bit lookup table LUT You can configure the LUT to implement simple imaging operations such as contrast enhancement data inversion gamma correction or other user defined transfer functions The NI 1409 has 16 MB of SDRAM for temporarily storing image data being transferred to the system memory through the PCI bus The memory can store multiple image buffers Scatter Gather DMA Controllers PCI Interface The NI 1409 uses three independent onboard direct memory access DMA controllers The DMA controllers transfer data between the onboard SDRAM memory buffer and the PCI bus Each of these controllers supports scatter gather DMA which allows the controllers to reconfigure on the fly This functionality enables the NI 1409 to perform continuous image transfers directly to either contiguous or fragmented memory buffers The NI PCI 1409 implements the PCI interface with a National Instruments custom application specific integ
42. the video timing signals by locking together the horizontal vertical and color subcarrier frequencies and phases and generates a pixel clock that clocks pixel data into memory for display or into another circuit for processing G 4 ni com HSYNC hue IC in INL instrument driver interlaced interpreter interrupt interrupt level IRQ National Instruments Corporation G 5 Glossary Horizontal synchronization signal The synchronization pulse signal produced at the beginning of each video scan line that keeps a video monitor s horizontal scan rate in step with the transmission of each new line Represents the dominant color of a pixel The hue function is a continuous function that covers all the possible colors generated using the R G and B primaries See also RGB Hertz Frequency in units of 1 second Integrated circuit Inches Integral nonlinearity A measure of LSB of the worst case deviation from the ideal A D or D A transfer characteristic of the analog I O circuitry A set of high level software functions such as NI IMAQ that control specific plug in computer boards Instrument drivers are available in several forms ranging from a function callable from a programming language to a virtual instrument VI in LabVIEW 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 A software utility that executes source
43. to the signal and VIDEOO to ground To connect a camera to VIDEOO first verify that the W1 jumper is intact Next use the 2 m BNC cable shipped with the NI 409 to connect to the BNC connector National Instruments Corporation 3 1 NI PXI PCI 1409 User Manual Chapter 3 Signal Connections Refer to Figure 3 1 for the location of the NI 1409 W1 jumper and the connectors discussed in this chapter Oo i z al F gt 4 N O 099000990009009000 NATIONAL INSTRUMENTS O i i ojojojoo o o olojo Mae PCI 1409 COPYRIGHT 2000 IAL 1 68 Pin VHDCI Connector 3 W1 Jumper 2 BNC Connector 4 RTSI Bus Connector Figure 3 1 NI PCI 1409 Parts Locator Diagram Figure 3 2 shows the BNC connector pin assignments lt GND VIDEOO Figure 3 2 BNC Connector Pin Assignment NI PXI PCI 1409 User Manual 3 2 ni com Chapter 3 Signal Connections Digital 1 0 Connector The 68 pin VHDCI connector connects to all video signals VIDEOO VIDEO1 VIDEO2 and VIDEO3 the external digital I O lines triggers
44. tween CompactPCI devices with different sub buses or between CompactPCI devices with sub buses and PXI The standard implementation for CompactPCI does not include these 1 2 ni com A Chapter 1 Introduction sub buses The NI PXI 1409 works in any standard CompactPCI chassis adhering to the PICMG 2 0 R2 1 CompactPCI core specification using the 64 bit definition for J2 PXI specific features are implemented on the J2 connector of the CompactPCI bus Table 1 1 lists the J2 pins the NI PXI 1409 uses The NI PXI 1409 is compatible with any CompactPCI chassis with a sub bus that does not drive these lines Caution Even if the sub bus is capable of driving these lines the NI PXI 1409 is still compatible as long as those pins on the sub bus are disabled by default and are never enabled Damage may result if these lines are driven by the sub bus Table 1 1 Pins Used by the NI PXI 1409 PXI 1409 Signal PXI Pin Name PXI J2 Pin Number RTSI Trigger lt 0 6 gt PXI Trigger lt 0 6 gt B16 A16 A17 A18 B18 C18 E18 Software Overview Programming the NI 1409 requires the NI IMAQ driver software for controlling the hardware National Instruments also offers the following application software packages for analyzing and processing your acquired images e Vision Builder for Automated Inspection AI Allows you to configure solutions for common inspection tasks e Vision Development Module Provides cust
45. ugh software In RS 422 mode both HSYNCIN and HSYNCIN receive the HSYNC signal VSYNCIN Use VSYNCIN when the NI 1409 is in external lock mode VSYNC is a synchronization pulse generated at the beginning of each video frame that tells the video monitor when to start a new field You can set VSYNCIN to be either TTL or RS 422 mode and program its polarity through software In RS 422 mode both VSYNCIN and VSYNCIN receive the VSYNC signal CSYNCIN Use CSYNCIN when the NI 1409 is in CSYNC external mode CSYNC is a signal consisting of horizontal sync pulses vertical sync pulses and equalizing pulses only You can set CSYNCIN to be either TTL or RS 422 mode and program its polarity through software In RS 422 mode both CSYNCIN and CSYNCIN receive the CSYNC signal CSYNCOUT CSYNCOUT is a TTL output of the internal CSYNC signal In CSYNC external mode CSYNCOUT maps directly to CSYNCIN In standard mode the synchronization circuitry of the NI 1409 generates CSYNCOUT National Instruments Corporation 3 5 NI PXI PCI 1409 User Manual Chapter 3 Signal Connections Table 3 1 1 0 Connector Signals Continued Signal Name Description TRIG lt 3 0 gt Triggers lt 3 0 gt are TTL I O lines used to start or stop an acquisition or output an acquisition status You can program the triggers to be rising or falling edge sensitive You can also program the triggers to be programmatically asserted or unasserte
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