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VXI-DIO-128 User Manual

1. DAQ VXI DIO 128 User Manual Digital O Module for VXIbus July 1996 Edition Part Number 321247A 01 Copyright 1996 National Instruments Corporation All Rights Reserved Internet Support GPIB gpib support natinst com DAQ daq support natinst com VXI vxi support natinst com LabVIEW lv support natinst com LabWindows lw support natinst com HiQ bio support natinst com VISA visa support natinst com E mail info natinst com FTP Site ftp natinst com Web Address http www natinst com Bulletin Board Support BBS United States 512 794 5422 or 800 327 3077 BBS United Kingdom 01635 551422 BBS France 1 48 65 15 59 FaxBack Support 512 418 1111 SO XD Telephone Support U S Tel 512 795 8248 Fax 512 794 5678 lt gt International Offices Australia 03 9 879 9422 Austria 0662 45 79 90 0 Belgium 02 757 00 20 Canada Ontario 519 622 9310 Canada Qu bec 514 694 8521 Denmark 45 76 26 00 Finland 90 527 2321 France 1 48 14 24 24 Germany 089 741 31 30 Hong Kong 2645 3186 Italy 02 413091 Japan 03 5472 2970 Korea 02 596 7456 Mexico 95 800 010 0793 Netherlands 0348 433466 Norway 32 84 84 00 Singapore 2265886 Spain 91 640 0085 Sweden 08 730 49 70 Switzerland 056 200 51 51 Taiwan 02 377 1200 U K 01635 523545 National Instruments Corporate Headquarters 6504 Bridge Point Parkway Austin TX 78730 5039 Tel 512 794 0100 Important Information Warranty Cop
2. digital output circuitry 4 3 to 4 4 output connector signal connection descriptions table 3 5 pin assignments figure 3 3 power on states of DIO lines on I O connector B 2 specifications A 1 documentation conventions used in manual viii National Instruments documentation ix organization of manual vii viii E electronic support services C 1 to C 2 e mail support C 2 environment specifications A 2 EPROM serial number 4 5 equipment optional 1 5 F fax and telephone support C 2 FaxBack support C 2 FTP support C 1 H hardware installation 2 5 input circuitry See also digital input illustration 4 5 theory of operation 4 4 VXI DIO 128 User Manual Index input connector signal connection descriptions table 3 4 installation See also configuration common questions B 1 to B 2 hardware installation 2 5 software installation 2 6 unpacking VXI DIO 128 1 6 T O connector See digital I O connector L LabView software 1 3 LabWindows CVI software 1 3 logical address V XIbus 2 3 to 2 4 configuration 2 3 switch settings 2 4 M manual See documentation module configuration See configuration N NI DAQ driver software 1 3 to 1 4 0 operation of VXI DIO 128 See theory of operation output circuitry See also digital output illustration 4 4 theory of operation 4 3 output connector signal connection descriptions table 3 5 P physical specifications
3. LL 20 BA NI LLL 20 VA NI LLL c0 gx NI LL 2 0 Wx NI 8 pue v ssoze pue 0 suog Indul ILL 2 0 VM NI Zpue 9 pod 91971 PIOUSOIIL S PUE p HO 949 BEST DEES T pue 0 WOd TOAST PIRSA jeu Anen sema Anen sena Anen sama Anen sena Anen sena Anen ena Anen sena Anen WH oix induropwd t Joyng indui pue apaid fein Dum Jeng indu pue tapwa 35240A AND 10 Sure MANO e lenen son ieduo5 z 91x indui paid L Jay ng ynduy d Pue opa oben oix ndur opa t ng indu pue apaid abeioN DIER wunne Let uod wunne 2 0 pi uod unn 2 0 1 uod wunne 2 0 21 uod wunne 2 0 11 uod wunne 2 0 01 uod wunne 2 0 6 uod wunne 2 0 8 uod H 20 9 104 j 2 0 S Wod J 120 uod 20 0 1104 1 O Connector 4 1 VXI DIO 128 Block Diagram Figure National Instruments Corporation 4 2 VXI DIO 128 User Manual Chapter 4 Theory of Operation The V XIbus I O channel consists of an address bus a data bus interrupt lines and several control and support signals Data Transceivers The data transceivers control the sending and receiving of data to and from the V XIbus VXIbus Interface Circuitry An onboard switch setting determines the VXI DIO 128 logical address The address decoder which is part of the interface circuitry monitors the address on the VXIbus If the address on t
4. A 2 power connections connecting directly to ground warning 3 7 description 3 7 specifications A 2 VXI DIO 128 User Manual power requirement specifications A 2 Q questions about VXI DIO 128 general information B 1 installation and configuration B 1 to B 2 timing and digital I O B 2 S serial number EPROM 4 5 signal connections exceeding maximum ratings warning 3 1 input connector descriptions table 3 4 I O connector pin description digital input pin assignments figure 3 2 digital output pin assignments figure 3 3 output connector descriptions table 3 5 power connections 3 7 typical digital I O applications figure 3 6 software installation 2 6 software programming choices 1 2 to 1 4 National Instruments application software 1 2 to1 3 NI DAQ driver software 1 3 to 1 4 VXIplug amp play instrument driver 1 4 specifications digital input A 1 digital output A 1 environment A 2 operating A 2 storage A 2 physical A 2 power connections A 2 power requirements A 2 National Instruments Corporation T technical support C 1 to C 2 temperature sensor 4 5 theory of operation 82C55A Programmable Peripheral Interface 4 3 block diagram 4 2 data transceivers 4 3 digital I O connector 4 5 input circuitry 4 4 to 4 5 output circuitry 4 3 to 4 4 serial number EPROM 4 5 temperature sensor 4 5 VXIbus interface circuitry 4 3 timing and digital I O B 2 U unpacking V
5. A National Instruments custom ASIC megabytes of memory A memory storage device that has configuration registers A National Instruments custom ASIC A sophisticated dual channel DMA controller that incorporates the Synchronous MXI and VME64 protocols to achieve high performance block transfer rates Typically a board assembly and its associated mechanical parts front panel optional shields and so on A module contains everything required to occupy one or more slots in a mainframe most significant bit A property of an operating system in which several processes can be run simultaneously Normally closed or not connected National Instruments driver software for DAQ hardware Execution elements of a block diagram consisting of functions structures and subVIs G 8 O National Instruments Corporation noise non slot 0 device 0 operating system optical isolation output limits output settling time PC port PPI RAM RESMAN O National Instruments Corporation Glossary An undesirable electrical signal Noise comes from external sources such as the AC power line motors generators transformers fluorescent lights soldering irons CRT displays computers electrical storms welders radio transmitters and internal sources such as semiconductors resistors and capacitors Noise corrupts signals you are trying to send or receive A device configured for installation in any slot in a VXIbus m
6. Digital I O Connections VXI DIO 128 User Manual 3 6 National Instruments Corporation Chapter 3 Signal Connections Power Connections Pins B30 B22 B14 and B6 of the I O connectors are connected to the 5 12 and 24 V supplies from the V XIbus power supply These pins are referenced to GND and can supply power to external circuitry The 5 V supply has a total of 2 A available and the 12 and 24 V supplies have a total of 1 A available However the current through each connector pin must be limited to 0 5 A Each power supply has a self resetting protection circuit breaker in series If the circuit breaker protection is activated simply remove the circuit causing the heavy current load and the circuit breaker will reset itself For more information on these output pins see the Digital Output and Power Connections sections in Appendix A Specifications Power rating 0 5 A per pin at 5 12 and 24 V 10 Warning Under no circumstances should you connect these 5 12 or 24 V power pins directly to ground or to any other voltage source on the VXI DIO 128 or any other device Doing so can damage the VXI DIO 128 and your VXIbus system National Instruments is NOT liable for damage resulting from such a connection O National Instruments Corporation 3 7 VXI DIO 128 User Manual Chapter Theory of Operation This chapter contains a functional overview of the VXI DIO 128 and explains the operation of each func
7. Figure 2 2 shows switch settings for logical addresses hex 4 and CO Logical Address Switch Push up for logic 1 Push down for logic 0 P1 Connector U51 VXI DIO 128 Board a Switch Set to Logical Address Hex 4 Default Logical Address Switch Push up for logic 1 Push down for logic 0 12345678 LSB MSB P1 Connector U51 VXI DIO 128 Board b Switch Set to Logical Address Hex CO Figure 2 2 Logical Address Selection VXI DIO 128 User Manual 2 4 O National Instruments Corporation Chapter 2 Configuration and Installation Hardware Installation This section contains general installation instructions for the VXI DIO 128 Consult your VXIbus mainframe user manual or technical reference manual for specific instructions and warnings 1 Plugin your mainframe before installing the VXI DIO 128 The power cord grounds the mainframe and protects it from electrical damage while you are installing the module Do not turn on the mainframe Warning To protect both yourself and the mainframe from electrical hazards DO NOT turn on the mainframe until you are finished installing the VXI DIO 128 module 2 Remove or open any doors or covers blocking access to the mainframe slots 3 If you are installing the VXI DIO 128 into a D size mainframe first install an appropriate support for C s
8. MSB and Line 0 is the LSB Output Data Lines for Port 12 Line 7 is the MSB and Line 0 is the LSB Output Data Lines for Port 13 Line 7 is the MSB and Line 0 is the LSB Output Data Lines for Port 14 Line 7 is the MSB and Line 0 is the LSB Output Data Lines for Port 15 Line 7 is the MSB and Line 0 is the LSB 12 Volts This pin is connected to the VXIbus system 12 VDC supply through a self resetting circuit breaker 24 Volts This pin is connected to the VXIbus system 24 VDC supply through a self resetting circuit breaker 5 Volts These pins are connected to the VXIbus system 5 VDC supply through a self resetting circuit breaker Ground These pins are connected to the VXIbus system ground signal Refer to Appendix A Specifications for detailed information O National Instruments Corporation 3 5 VXI DIO 128 User Manual Chapter 3 Signal Connections Figure 3 3 shows signal connections for three typical digital I O applications Output Connector Pin C27 Pin A28 Pin B28 Pin C28 Port8 Line7 Port8 Line6 Port8 Line5 Port8 Line4 Pin C27 Pin A28 Port Line7 Port Line6 TTL Signal Pin B28 Port Line5 45V lt 4 ANN Pin C28 Porto Line4 Switch EZ gt Input Connector VXI DIO 128 Complex switch circuitry is not shown in order to simplify the figure Figure 3 3
9. NI DAQ release notes and follow the instructions given there for your operating system and LabVIEW If you are using LabWindows CVI refer to your LabWindows CVI release notes to install your application software After you have installed LabWindows CVI refer to the NI DAQ release notes and follow the instructions given there for your operating system and LabWindows CVI If you are using ComponentWorks Measure or VirtualBench application software refer to your documentation for installation instructions 2 6 O National Instruments Corporation Chapter Signal Connections This chapter provides connection instructions for the signals on the VXI DIO 128 I O connector Warning Connections that exceed any of the maximum ratings of input or output signals on the VXI DIO 128 can damage the VXI DIO 128 module and the VXIbus system Maximum input ratings for each signal are given in this chapter under the discussion of that signal National Instruments is NOT liable for any damages resulting from any incorrect signal connections I O Connector Pin Description Figures 3 1 and 3 2 show the pin assignments for the VXI DIO 128 digital I O connectors O National Instruments Corporation 3 1 VXI DIO 128 User Manual Chapter 3 Signal Connections GND GND PORTO LINEO PORTO LINES PORTO LINE6 PORT UNE PORT1_LINE4 PORT1_LINE7 GND GND PORT2_LINEO PORT2_LINE3 PORT2_LINE6 PORTS LINE1 PORTS LINE4 PORTS LINE7 GND
10. gt 7 and C6 are connected to ground See Chapter 2 Configuration and Installation and Chapter 3 Signal Connections for additional information Serial Number EPROM The serial number EPROM is a nonvolatile memory used to hold the serial number of the module as well as some other identification information used by the driver software Temperature Sensor The onboard temperature sensor can measure the air temperature flowing over the module This sensor is positioned near the input threshold circuitry which can be affected by extreme temperatures This sensor has a serial digital interface O National Instruments Corporation 4 5 VXI DIO 128 User Manual Specifications Appendix This appendix lists the VXI DIO 128 specifications These specifications are typical at 25 C unless otherwise stated Digital Input Number of channels Compatibility Voltage range reee Input logic threshold Input logic threshold resolution Input logic threshold accuracy Input impedance Power on state Data transfers Digital Output Number of channels Configuration Max sink current per channel Max sink current total per 8 bit pont Drain source voltage Max allowed voltage range National Instruments Corporation TTL CMOS programmable 42 V 32 to 431 75 V 250 mV 250 mV 5 of setting 160 kQ Inputs Programmed I O 64 Open drain with pullups to 4 V 25
11. lt B A gt 27 C19 lt C A gt 20 lt C A gt 21 A22 lt C A gt 17 lt C A gt 18 lt B A gt 19 C11 lt C A gt 12 lt C A gt 13 A14 lt C A gt 9 lt C A gt 10 lt B A gt 11 C3 lt C A gt 4 lt C A gt 5 A6 lt C A gt 1 C A22 lt B A gt 3 B14 B22 B30 B6 lt C A gt 32 lt C A gt 31 C30 lt C A gt 24 lt C A gt 23 C22 lt C A gt 16 lt C A gt 15 C14 lt C A gt 8 lt C A gt 7 C6 VXI DIO 128 User Manual Port0_Line lt 7 0 gt Port1_Line lt 7 0 gt Port2_Line lt 7 0 gt Port3_Line lt 7 0 gt Port4_Line lt 7 0 gt Port5_Line lt 7 0 gt Port6_Line lt 7 0 gt Port7_Line lt 7 0 gt 12 V 24 V 5 V GND 3 4 Input Data Lines for Port 0 Line 7 is the MSB and Line 0 is the LSB Input Data Lines for Port 1 Line 7 is the MSB and Line 0 is the LSB Input Data Lines for Port 2 Line 7 is the MSB and Line 0 is the LSB Input Data Lines for Port 3 Line 7 is the MSB and Line 0 is the LSB Input Data Lines for Port 4 Line 7 is the MSB and Line 0 is the LSB Input Data Lines for Port 5 Line 7 is the MSB and Line 0 is the LSB Input Data Lines for Port 6 Line 7 is the MSB and Line 0 is the LSB Input Data Lines for Port 7 Line 7 is the MSB and Line 0 is the LSB 12 Volts This pin is connected to the VXIbus system 12 VDC supply through a self resetting circuit breaker 24 Volts This pin is connected to the VXIbus system 2
12. plug in boards chassis enclosures peripherals cables and so on A form of triggering where you set the start time of an acquisition and gather data at a known position in time relative to a trigger signal hexadecimal hertz A unit of frequency equal to one cycle per second G 6 National Instruments Corporation IC in INL input range instrument driver interrupt interrupt level interval scanning I O KB kS L latched digital I O O National Instruments Corporation Glossary integrated circuit inches Integral Nonlinearity A measure in LSB of the worst case deviation from the ideal A D or D A transfer characteristic of the analog I O circuitry The difference between the maximum and minimum voltages an analog input channel can measure at a gain of 1 The input range is a scalar value not a pair of numbers By itself the input range does not uniquely determine the upper and lower voltage limits An input range of 10 V could mean an upper limit of 10 V and a lower of 0 V or an upper limit of 5 V and a lower limit of 5 V The combination of input range polarity and gain determines the input limits of an analog input channel For some boards jumpers set the input range and polarity while you can program them for other boards Most boards have programmable gains A set of high level software functions that controls a specific VXI or RS 232 programmable instrument or a specific plug in DAQ
13. signals you group channels to form ports Ports usually consist of either four or eight digital channels complementary metal oxide semiconductor Any communication from a Commander to a Message Based Servant that consists of a write to the Servants Data Low register possibly preceded by a write to the Data High or Data High and Data Extended registers A message based device that is also a bus master and can control one or more servants An application that contains one or more component objects that can freely interact with other component software Examples include OLE enabled applications such as Microsoft Visual Basic and OLE Controls for virtual instrumentation in ComponentWorks 1 A set of registers through which the system can identify a module device type model manufacturer address space and memory requirements In order to support automatic system and memory configuration the V XIbus specification requires that all V XIbus devices have a set of such registers 2 The A16 registers of a device that are required for the system configuration process An unwanted signal on one channel due to an input on a different channel digital to analog 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 and or DIO boards plugged into
14. with its own clock rates handshaking modes buffer configurations and so on A port cannot belong to more than one group A collection of digital output ports You can associate each group with its own clock rates handshaking modes buffer configurations and so on A port cannot belong to more than one group A TTL level signal having two discrete levels high and low Deutsche Industrie Norme digital input output dual inline package The addition of Gaussian noise to an analog input signal Dynamic Link Library A software module in Microsoft Windows containing executable code and data that can be called or used by Windows applications or by other DLLs Functions and data in a DLL are loaded and linked at run time when they are referenced by a Windows application or other DLLs direct memory access Dynamic RAM Software that controls a specific hardware device such as a DAQ board G 4 National Instruments Corporation DTB dual access memory dual ported memory dynamic configuration dynamic range dynamically configured device E embedded controller EPROM event external controller external trigger O National Instruments Corporation Glossary Data Transfer Bus One of four buses on the VMEbus backplane The DTB is used by a bus master to transfer binary data between itself and a slave device Memory that can be sequentially but not simultaneously accessed by more than one controller o
15. 0 mA 2 0 A at 25 C 1 4 A at 55 C 0 5 V IC 250 mA at 55 C 0 to 42 V VXI DIO 128 User Manual Appendix A Specifications Power Connections Total per module T3 Vase nes 2A FIVE SE he 1A TIANG eire 1A Max per pm 0 5 A Environment Operating Temperature 0 to 55 C ambient Relative humidity 10 to 9096 noncondensing Storage Temperature eet 40 to 85 C ambient Relative humidity 096 to 9596 noncondensing Physical Dimensions sasasi san TA aana sabane VXI C size single slot I O connector nee 96 pin Power Requirement Max power PI Ve ttes isse e eren 450 mA up to 2 450 A with accessories DV iod ostio tie Less atti test mA EI M n 25 mA up to 1 025 A with accessories DN nang a na baa nb pani an aaa kan ah 10 mA ADA EE 10 mA up to 1 010 A with accessories Note These power usage figures do not include the power used by external devices that are connected to the fused supply present on the I O connector VXI DIO 128 User Manual A 2 National Instruments Corporation Common Questions Appendix This appendix contains commonly asked questions and their answers relating to usage and special features of your VXI DIO 128 module General Information 1 What if I short circuit the power supply on the VXI DIO 128 connector Pins B30 B22 B14 and B6 of the I O connectors are connected to the 5 1
16. 2 and 24 V supplies from the VXIbus power supply These pins are referenced to GND and can be used to power external circuitry The 5 V supply has a total of 2 A available and the 12 and 24 V supplies have a total of 1 A available However the current through each connector pin must be limited to 0 5 A Each power supply has a self resetting protection fuse in series If the fuse protection is activated simply remove the circuit causing the heavy current load and the fuse will reset itself For more information on these output pins see the Digital Output and Power Connections sections in Appendix A Specifications Installation and Configuration 2 National Instruments Corporation What jumpers switches should I be aware of when configuring my VXI DIO 128 module The only switch you must configure is the logical address switch Refer to the VXIbus Logical Address section of Chapter 2 Configuration and Installation for this information Which National Instruments manual should I read first to get started using DAQ software The release notes document for your application or driver software is always the best starting place B 1 VXI DIO 128 User Manual Appendix B Common Questions Timing and Digital UO 7 VXI DIO 128 User Manual What version of NI DAQ must I have to program my VXI DIO 128 module You must have NI DAQ for PC compatibles version 4 9 0 or higher for your VXI DIO 128 module Whatis the best wa
17. 4 VDC supply through a self resetting circuit breaker 5 Volts These pins are connected to the VXIbus system 5 VDC supply through a self resetting circuit breaker Ground These pins are connected to the VXIbus system ground signal O National Instruments Corporation Chapter 3 Signal Connections Output Connector Signal Connection Descriptions Pin Signal Name Description C27 lt C A gt 28 lt C A gt 29 A30 lt C A gt 25 lt C A gt 26 lt B A gt 27 C19 lt C A gt 20 lt C A gt 21 A22 lt C A gt 17 lt C A gt 18 lt B A gt 19 C11 lt C A gt 12 lt C A gt 13 A14 lt C A gt 9 lt C A gt 10 lt B A gt 11 C3 lt C A gt 4 lt C A gt 5 A6 lt C A gt 1 lt C A gt 2 lt B A gt 3 B14 B22 B30 B6 lt C A gt 32 lt C A gt 31 C30 lt C A gt 24 lt C A gt 23 C22 lt C A gt 16 lt C A gt 15 C14 lt C A gt 8 lt C A gt 7 C6 Port8_Line lt 7 0 gt Port9_Line lt 7 0 gt Port10_ Line lt 7 0 gt Portll Line lt 7 0 gt Port12_ Line lt 7 0 gt Port13_ Line lt 7 0 gt Port14_ Line lt 7 0 gt Port15_ Line lt 7 0 gt 12 V 24 V 5 V GND Output Data Lines for Port 8 Line 7 is the MSB and Line 0 is the LSB Output Data Lines for Port 9 Line 7 is the MSB and Line 0 is the LSB Output Data Lines for Port 10 Line 7 is the MSB and Line 0 is the LSB Output Data Lines for Port 11 Line 7 is the
18. E1 PORT6_LINE4 PORT6_LINE7 PORT7_LINE2 PORT7_LINE5 O oe m wo A CO o N o N m N o N al N gt N oo N N N A N eo _ o oo pare N o al gt e 99 m o o M G l BR oO oa IN Figure 3 1 Digital Input Connector Pin Assignments 3 2 National Instruments Corporation GND GND PORT8_LINEO PORT8_LINE3 PORT8_LINE6 PORT9_LINE1 PORT9_LINE4 PORT9_LINE7 GND GND PORT10_LINEO PORT10 LINES PORT10_LINE6 PORT11_LINE1 PORT11_LINE4 PORT11 UNE GND GND PORT12 LINEO PORT12 LINES PORT12 LINE6 PORT13 LINE1 PORT13 LINE4 PORT13 LINE7 GND GND PORT14 LINEO PORT14 LINES PORT14 LINE6 PORT15 LINE1 PORT15 LINE4 PORT15 LINE7 O National Instruments Corporation gt CA m wo A C2 o N o N m N o m al N gt N oo N N m A mm eo o oo N o al _ gt ae Co m a dek o o P oO BR oO OD NO GND GND 5 V PORTS LINE2 PORT8_LINE5 PORT9_LINEO PORT9_LINE3 PORTO LINE6 GND GND 24 V PORT10_LINE2 PORT10_LINE5 PORT11_LINEO PORT11_LINE3 PORT11_LINE6 GND GND 12 V PORT12_LINE2 P
19. GND PORTA LINEO PORTA LINES PORTA LINE6 PORTS UNE PORTS LINE4 PORTS LINE7 GND GND PORT6 LINEO PORT6 LINES PORT6 LINE6 PORT UNE PORT LINE4 PORT LINE7 VXI DIO 128 User Manual gt C2 m oo erg Co o N o D m Y D o Nm al N ES N wo N N m A D o ae o N _ o E al er gt wo m _ er o o P Gol lol DM N Oo GND GND 5 V PORTO_LINE2 PORTO LINE5 PORT1 LINEO PORT1 LINES3 PORT1_LINE6 GND GND 24 V PORT2_LINE2 PORT2 LINE5 PORT3_LINEO PORT3_LINE3 PORT3_LINE6 GND GND 12 V PORT4_LINE2 PORTA LINE5 PORTS LINEO PORTS LINES3 PORTS LINE6 GND GND 5 V PORT6_LINE2 PORT6_LINE5 PORT7 LINEO PORT7 LINES3 PORT7 LINE6 UJ wo N A oe o n co M co m D o n al N Ka N wo N N m N o E co ak us N o c al A wm at N _ a A o o MP Gol A OH D NG GND GND GND PORTO_LINE1 PORTO_LINE4 PORTO LINE7 PORT1 LINE2 PORT1_LINE5 GND GND GND PORT2_LINE1 PORT2_LINE4 PORT2_LINE7 PORT3_LINE2 PORT3_LINE5 GND GND GND PORT4_LINE1 PORT4_LINE4 PORT4_LINE7 PORT5_LINE2 PORT5_LINE5 GND GND GND PORT6_LIN
20. National Instruments Corporation C 1 VXI DIO 128 User Manual FaxBack Support FaxBack is a 24 hour information retrieval system containing a library of documents on a wide range of technical information You can access FaxBack from a touch tone telephone at the following number 512 418 1111 E Mail Support currently U S only You can submit technical support questions to the appropriate applications engineering team through e mail at the Internet addresses listed below Remember to include your name address and phone number so we can contact you with solutions and suggestions LabVIEW lv support natinst com HiQ hiq support natinst com VISA visa support natinst com GPIB gpib support natinst com DAQ daq support natinst com VXI vxi support natinst com LabWindows lw support natinst com Fax and Telephone Support National Instruments has branch offices all over the world Use the list below to find the technical support number for your country If there is no National Instruments office in your country contact the source from which you purchased your software to obtain support Telephone Fax Australia 03 9 879 9422 03 9 879 9179 Austria 0662 45 79 90 0 0662 45 79 90 19 Belgium 02 757 00 20 02 757 03 11 Canada Ontario 519 622 9310 Canada Quebec 514 694 8521 514 694 4399 Denmark 45 76 26 00 45 76 26 02 Finland 90 527 2321 90 502 2930 France 1 48 14 24 24 1 48 14 24 14 Germany 089 741 31 30 089 714 60 35 Hong Kon
21. O 128 User Manual ComponentWorks contains tools for data acquisition and instrument control built on NI DAQ driver software ComponentWorks provides a higher level programming interface for building virtual instruments through standard OLE controls and DLLs With ComponentWorks you can use all of the configuration tools resource management utilities and interactive control utilities included with NI DAQ 1 2 National Instruments Corporation Chapter 1 Introduction LabVIEW features interactive graphics a state of the art user interface and a powerful graphical programming language The LabVIEW Data Acquisition VI Library a series of VIs for using LabVIEW with National Instruments DAQ hardware is included with LabVIEW The LabVIEW Data Acquisition VI Library is functionally equivalent to the NI DAQ software LabWindows CVI features interactive graphics a state of the art user interface and uses the ANSI standard C programming language The LabWindows CVI Data Acquisition Library a series of functions for using LabWindows CVI with National Instruments DAQ hardware is included with the NI DAQ software kit The LabWindows CVI Data Acquisition Library is functionally equivalent to the NI DAQ software VirtualBench features VIs that combine DAQ products software and your computer to create a standalone instrument with the added benefit of the processing display and storage capabilities of your computer VirtualBench instruments lo
22. O Connectonsg eese eere 3 6 Figure 4 1 VXI DIO 128 Block Diagram eene 4 2 Figure 4 2 Output Circuitry eeseessersrsnersnesnnsnnennnennennnnnnennonnnennnnnnnnnnennonsnonnensnesnnn nme 4 4 Figure 4 3 Input Car Cutty soe eden pte em it eg 4 5 VXI DIO 128 User Manual vi O National Instruments Corporation This manual describes the mechanical and electrical aspects of the VXI DIO 128 and contains information concerning its configuration installation and operation The VXI DIO 128 is designed to drive relays read switch closures and provide general purpose digital I O This module is designed for control applications in laboratory testing production testing and industrial process monitoring and control Organization of This Manual The VXI DIO 128 User Manual is organized as follows O National Instruments Corporation Chapter 1 Introduction describes the VXI DIO 128 lists what you need to get started describes software programming choices optional equipment and custom cables and explains how to unpack the VXI DIO 128 Chapter 2 Configuration and Installation describes how to configure and install your VXI DIO 128 module Chapter 3 Signal Connections provides connection instructions for the signals on the VXI DIO 128 I O connector Chapter 4 Theory of Operation contains a functional overview of the VXI DIO 128 and explains the operation of each functional unit making up the module Appendix A Specifica
23. ORT12 LINE5 PORT13 LINEO PORT13 LINES3 PORT13_LINE6 GND GND 45 V PORT14 LINE2 PORT14 LINE5 PORT15 LINEO PORT15 LINES3 PORT15 LINE6 UJ C2 m oo wo o N O D co m Y N o N al N ES N 99 N N N N o ET c co EP N E o al gt EN wo E m gt _ o o N BR JONG Chapter 3 GND GND GND PORT8_LINE1 PORT8_LINE4 PORT8_LINE7 PORT9_LINE2 PORT9_LINE5 GND GND GND PORT10_LINE1 PORT10_LINE4 PORT10 LINE7 PORT11 LINE2 PORT11 LINES GND GND GND PORT12 LINE1 PORT12 LINE4 PORT12 LINE7 PORT13 LINE2 PORT13 LINES GND GND GND PORT14 LINE1 PORT14 LINEA PORT14 LINE7 PORT15 LINE2 PORT15 LINES Signal Connections CH CA N wo A Cc o n O D co m D o n al N Ka N 99 N N m N o E o co a N ar o al v A wo E N _ _ o o mM EJIM DINI Figure 3 2 Digital Output Connector Pin Assignments 3 3 VXI DIO 128 User Manual Chapter 3 Signal Connections Input Connector Signal Connection Descriptions Pin Signal Name Description C27 C A228 lt C A gt 29 A30 lt C A gt 25 lt C A gt 26
24. VXI DIO 128 with a logical address of 0 The factory default logical address for the VXI DIO 128 is 4 Some VXIbus modules have dynamically configurable logical addresses These modules have an initial logical address of hex FF or decimal 255 which indicates that they can be dynamically configured The VXI DIO 128 supports dynamic configuration of its logical address However adding or removing modules can cause a different logical address to be assigned to the VXI DIO 128 Tracking these changes in your application software can be troublesome In many cases static configuration of the logical address is easier Ensure that no other statically configurable VXIbus modules have a logical address of 4 If they do change the logical address setting of either the VXI DIO 128 or the other module so that every module in the system has a different logical address Change the VXI DIO 128 logical address by modifying the setting of the 8 bit DIP switch labeled Logical Address Switch see Figure 2 1 for the switch location The down position of the DIP switch corresponds to a logic value of 0 and the up position corresponds to a logic value of 1 Verify that the VXI DIO 128 does not have the same logical address as any other statically configured V XIbus module in your system Uz Note Logical address 0 is NOT allowed for the VXI DIO 128 O National Instruments Corporation 2 3 VXI DIO 128 User Manual Chapter 2 Configuration and Installation
25. XI DIO 128 1 6 V VirtualBench software 1 3 VXlIbus interface circuitry 4 3 VXIbus logical address 2 3 to 2 4 configuration 2 3 switch settings figure 2 4 VXI DIO 128 block diagram 4 2 custom cabling 1 5 features 1 1 optional equipment 1 5 overview 1 1 requirements for getting started 1 2 software programming choices 1 2 to 1 4 National Instruments application software 1 2 tol 3 NI DAQ driver software 1 3 to 1 4 VXIplug amp play instrument driver 1 4 unpacking 1 6 VXIplug play instrument driver 1 4 O National Instruments Corporation 1 3 Index VXI DIO 128 User Manual
26. a computer and possibly generating control signals with D A and or DIO boards in the same computer G 3 VXI DIO 128 User Manual Glossary default setting device digital input group digital output group digital trigger DIN DIO DIP dithering DLL DMA DRAM drivers driver software VXI DIO 128 User Manual A default parameter value recorded in the driver In many cases the default input of a control is a certain value often 0 that means use the current default setting For example the default input for a parameter may be do not change current setting and the default setting may be no AMUX 64T boards If you do change the value of such a parameter the new value becomes the new setting You can set default settings for some parameters in the configuration utility or by manually using switches located on the device 1 A plug in data acquisition board card or pad that can contain multiple channels and conversion devices Plug in boards PCMCIA cards and devices such as the DAQPad 1200 which connects to your computer parallel port are all examples of DAQ devices 2 A component of a VXIbus system normally one VXIbus board However multiple slot devices and multiple device modules can operate on a VXIbus system as a single device Some examples of devices are computers multimeters multiplexers oscillators operator interfaces and counters A collection of digital input ports You can associate each group
27. a system has 12 bit resolution one part in 4 096 resolution and 0 0244 percent of full scale A message based Commander located at logical address 0 which provides configuration management services such as address map configuration Commander and Servant mappings and self test and diagnostics management Signals or interrupts generated by a device to notify another device of an asynchronous event Responses contain the information in the Response register of a sender Real Time System Integration seconds sample The amount of time required for a voltage to reach its final value within specified limits Any communication between message based devices consisting of a write to a Signal register Single In line Memory Module A position where a module can be inserted into a VXIbus backplane Each slot provides the 96 pin J connectors to interface with the board P connectors A slot can have one two or three connectors A VXIbus device that provides basic resources to VXI Slots 1 through 12 For B and C size systems the resources provided are CLK10 and MODID For a D size system the Slot O device also provides CLK100 Samples per Second Used to express the rate at which a DAQ board samples an analog signal A device whose logical address cannot be set through software that is it is not dynamically configurable A system consists of one or more mainframes that are connected all sharing a common Resource Manager Ea
28. ad and save waveform data to disk in the same forms that can be used in popular spreadsheet programs and word processors ComponentWorks features report generation and printing capabilities Using ComponentWorks LabVIEW LabWindows CVI or VirtualBench software will greatly reduce the development time for your data acquisition and control application NI DAQ Driver Software The NI DAQ driver software is included at no charge with all National Instruments DAQ hardware NI DAQ is not packaged with accessory products NI DAQ has an extensive library of functions that you can call from your application programming environment These functions include routines for analog input A D conversion buffered data acquisition high speed A D conversion analog output D A conversion waveform generation digital I O counter timer operations SCXI RTSI self calibration messaging and acquiring data to extended memory NI DAQ has both high level DAQ I O functions for maximum ease of use and low level DAQ I O functions for maximum flexibility and performance Examples of high level functions are streaming data to disk or acquiring a certain number of data points An example of a low level function is writing directly to registers on the DAQ device NI DAQ does not sacrifice the performance of National Instruments O National Instruments Corporation 1 3 VXI DIO 128 User Manual Chapter 1 Introduction DAQ devices because it lets multiple devices o
29. ainframe other than Slot 0 Installing such a device into Slot 0 can damage the device the V XIbus backplane or both Base level software that controls a computer runs programs interacts with users and communicates with installed hardware or peripheral devices The technique of using an optoelectric transmitter and receiver to transfer data without electrical continuity to eliminate high potential differences and transients The upper and lower voltage or current outputs for an analog output channel The output limits determine the polarity and voltage reference settings for a board The amount of time required for the analog output voltage to reach its final value within specified limits personal computer 1 A communications connection on a computer or a remote controller 2 A digital port consisting of four or eight lines of digital input and or output programmable peripheral interface random access memory The name of the National Instruments Resource Manager in NI VXI bus interface software See Resource Manager G 9 VXI DIO 128 User Manual Glossary resolution Resource Manager responses RTSI S S S settling time signal SIMM slot slot O device S s statically configured device system VXI DIO 128 User Manual The smallest signal increment that can be detected by a measurement system Resolution can be expressed in bits in proportions or in percent of full scale For example
30. anical relays LEDs e Centronics compatible printers and plotters e Panel meters nstruments and test equipment with BCD readouts and or controls e Optically isolated solid state relays and I O module mounting racks With the VXI DIO 128 your VXIbus system can serve as a digital I O system controller for laboratory testing production testing and industrial process monitoring and control Detailed specifications for the VXI DIO 128 are in Appendix A Specifications O National Instruments Corporation 1 1 VXI DIO 128 User Manual Chapter 1 Introduction What You Need to Get Started To set up and use your VXI DIO 128 you will need the following CL VXI DIO 128 module Q VXI DIO 128 User Manual C One of the following software packages and documentation ComponentWorks LabVIEW for Windows LabWindows CVI for Windows Measure NI DAQ for PC compatibles VirtualBench VXIplug amp play instrument driver D Your VXIbus system Software Programming Choices There are several options to choose from when programming your National Instruments VXI DAQ hardware You can use LabVIEW LabWindows CVI Measure ComponentWorks VirtualBench or other application development environments with either NI DAQ or the VXIplug amp play instrument driver Both NI DAQ and the VXIplug amp play instrument driver access the VXI DAQ hardware through the VISA driver software National Instruments Application Software VXI DI
31. as es tax pesta pesan erento pesto pe m X M p 3 M pec porsa por E porsa forse E porsas R porsa E posa Se of 8o off go og de 03 Bo 08 3 Bo 08 00 pasara o foa Rosa Gees of fo of m of go goa Insel mer ane massa A MTS kaose fon Fuera dono 3 95 8 8 g n x E O Wt nla Sai rns an Ko Sex alfil EI I EMT E BOON 2 PEON Osos onvoun g N HESSN ALIN aononendad sen O 4 go c Pp 1 Input Connector 2 Status LED 3 Access LED VXI DIO 128 User Manual 4 Output Connector 5 Product Name 6 Assembly Number 7 Serial Number 9 P1 Connector 8 Logical Address Switch 10 P2 Connector Figure 2 1 VXI DIO 128 Parts Locator Diagram 2 2 National Instruments Corporation Chapter 2 Configuration and Installation VXIbus Logical Address Each module in a V XIbus system is assigned a unique number between 0 and 254 This 8 bit number called the logical address defines the base address for the V XIbus configuration registers located on the module With unique logical addresses each V XIbus module in the system is assigned 64 bytes of configuration space in the upper 16 KB of the A16 address space Logical address 0 is reserved for the Resource Manager in the VXIbus system Because the VXI DIO 128 cannot act as a Resource Manager do not configure the
32. board 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 Scanning method where there is a longer interval between scans than there is between individual channels comprising a scan Input output The transfer of data to from a computer system involving communications channels operator interface devices and or data acquisition and control interfaces kilobytes 1 024 bytes when referring to memory 1 000 samples A type of digital acquisition generation where a device or module accepts or transfers data after a digital pulse has been received Also called handshaked digital I O G 7 VXI DIO 128 User Manual Glossary LED logical address LSB M m mainframe MANTIS MB memory device MITE module MSB multitasking NC NI DAQ node VXI DIO 128 User Manual light emitting diode An 8 bit number that uniquely identifies each VXIbus device in a system It defines the A16 register addresses of a device and indicates Commander and Servant relationships least significant bit meters The chassis of a VXI system that mechanically contains VXI modules inserted into the backplane ensuring that connectors fit properly and that adjacent modules do not contact each other It also provides cooling airflow and ensures that modules do not disengage from the backplane due to vibration or shock
33. ch device in a system has a unique logical address G 10 National Instruments Corporation system RAM T transfer rate TTL update update rate V V VDC VI VISA VXIbus VXIplug amp play Systems Alliance O National Instruments Corporation Glossary 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 Transistor transistor logic The output equivalent of a scan One or more analog or digital output samples Typically the number of output samples in an update is equal to the number of channels in the output group For example one pulse from the update clock produces one update which sends one new sample to every analog output channel in the group The number of output updates per second volts volts direct current 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 new driver software architecture developed by National Instruments to unify instrumentation software GPIB DAQ and VXI It has been accepted as a standard for VXI by the VXIplu
34. d user manuals They explain how to physically connect the relevant pieces of the system Consult these guides when you are making your connections Customer Communication National Instruments wants to receive your comments on our products and manuals We are interested in the applications you develop with our produets and we want to help if you have problems with them To make it easy for you to contact us this manual contains comment and configuration forms for you to complete These forms are in Appendix C Customer Communication at the end of this manual O National Instruments Corporation ix VXI DIO 128 User Manual Chapter Introduction This chapter describes the VXI DIO 128 lists what you need to get started describes software programming choices optional equipment and custom cables and explains how to unpack the VXI DIO 128 About the VXI DIO 128 Thank you for purchasing the National Instruments VXI DIO 128 The VXI DIO 128 is a 128 channel parallel digital I O module for the VXIbus The module uses eight 16 bit programmable peripheral interfaces PPIs that can be further divided into 16 8 bit ports Four 82C55A PPI chips control 64 open drain output channels Four 82C55A PPI chips control 64 input channels with programmable threshold You can use the VXI DIO 128 in a wide range of digital I O applications With the VXI DIO 128 a VXIbus system can be interfaced to any of the following e Hlectromech
35. e July 1996 Part Number 321247A 01 Please comment on the completeness clarity and organization of the manual If you find errors in the manual please record the page numbers and describe the errors Thank you for your help Name Title Company Address Phone Mail to Technical Publications Fax to Technical Publications National Instruments Corporation National Instruments Corporation 6504 Bridge Point Parkway 512 794 5678 Austin TX 78730 5039 Glossary Prefix Meaning Value n nano 10 9 u micro 10 6 m milli 10 3 k kilo 103 M mega 106 Symbols approximately National Instruments Corporation degrees negative of or minus ohms per percent plus or minus positive of or plus G 1 VXI DIO 128 User Manual Glossary A A A16 space A D address space address window ANSI backplane base address BCD bit bus byte VXI DIO 128 User Manual amperes VXIbus address space equivalent to the VME 64 KB short address space In VXI the upper 16 KB of A16 space is allocated for use by VXI module s configuration registers This 16 KB region is referred to as VXI configuration space analog to digital A set of 2n memory locations differentiated from other such sets in VXI VMEbus systems by six addressing lines known as address modifiers n is the number of address lines requi
36. em operations A voltage pulse from an external source that triggers an event such as A D conversion G 5 VXI DIO 128 User Manual Glossary F floating signal sources ft function GND group H hardware hardware triggering hex VXI DIO 128 User Manual Signal sources with voltage signals that are not connected to an absolute reference or system ground Also called nonreferenced signal sources Some common example of floating signal sources are batteries transformers or thermocouples 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 ground signal or bit A collection of digital ports combined to form a larger entity for digital input and or output Groups can contain analog input analog output digital input digital output or counter timer channels A group can contain only one type of channel however You use a task ID number to refer to a group after you create it You can define up to 16 groups at one time To erase a group you pass an empty channel array and the group number to the group configuration VI You do not need to erase a group to change its membership If you reconfigure a group whose task is active LabVIEW clears the task and returns a warning LabVIEW does not restart the task after you reconfigure the group The physical components of a computer system such as the circuit boards
37. er 4 Theory of Operation e Pin on Output Connector Figure 4 2 Output Circuitry Input Circuitry For digital input you can set an input threshold voltage between 32 and 431 75 V in 250 mV steps You can program the threshold voltage for each input port independently By comparing the input digital signal to the threshold values the module can translate input voltage levels above the threshold to active high readings and input voltage levels below the threshold to active low readings The VXI DIO 128 can accept input voltage levels ranging from 42 V By using either the NI DAQ driver software or the VXIplug amp play instrument driver you can easily interface the VXI DIO 128 to external devices such as VXI switches to read the current state See Figure 4 3 for a diagram of the input circuitry O National Instruments Corporation 4 4 VXI DIO 128 User Manual Chapter 4 Theory of Operation Pin on Input Connector s 150 KQ WH to 82C55A Comparator Threshold Figure 4 3 Input Circuitry Digital UO Connector All digital I O is transmitted through two standard 96 pin header connectors Pins B30 and B6 are connected to 5 V through a protection circuit breaker F1 This 5 V supply is often required to operate I O module mounting racks Pins lt C A gt 32 lt C A gt 31 C30 lt C A gt 24 lt C A gt 23 C22 lt C A gt 16 lt C A gt 15 C14 lt C A gt 8 lt C A
38. essages The following steps reproduce the problem VXI DIO 128 Hardware and Software Configuration Form Record the settings and revisions of your hardware and software on the line to the right of each item Also fill out the hardware and software configuration forms for all modules in the chassis all relevant DAQ boards and all other chassis in the application By completing these forms accurately our applications engineers will be able to answer your questions efficiently National Instruments Products DAQ hardware Logical address of hardware Programming choice NI DAQ LabVIEW LabWindows CVI or ComponentWorks version Other National Instruments boards in system Logical address of other boards DMA channels of other boards Interrupt level of other boards Other Products Computer make and model Microprocessor Clock frequency or speed Type of video board installed Operating system version Operating system mode Programming language Programming language version Other boards in system Base I O address of other boards DMA channels of other boards Interrupt level of other boards Documentation Comment Form National Instruments encourages you to comment on the documentation supplied with our products This information helps us provide quality products to meet your needs Title VXI DIO 128 User Manual Edition Dat
39. g 2645 3186 2686 8505 Italy 02 413091 02 41309215 Japan 03 5472 2970 03 5472 2977 Korea 02 596 7456 02 596 7455 Mexico 95 800 010 0793 5 520 3282 Netherlands 0348 433466 0348 430673 Norway 32 84 84 00 32 84 86 00 Singapore 2265886 2265887 Spain 91 640 0085 91 640 0533 Sweden 08 730 49 70 08 730 43 70 Switzerland 056 200 51 51 056 200 51 55 Taiwan 02 377 1200 02 737 4644 U K 01635 523545 01635 523154 Technical Support Form Photocopy this form and update it each time you make changes to your software or hardware and use the completed copy of this form as a reference for your current configuration Completing this form accurately before contacting National Instruments for technical support helps our applications engineers answer your questions more efficiently If you are using any National Instruments hardware or software products related to this problem include the configuration forms from their user manuals Include additional pages if necessary Name Company Address Fax Phone Computer brand Model Processor Operating system include version number Clock speed MHz RAM MB Display adapter Mouse yes no Other adapters installed Hard disk capacity MB Brand Instruments used National Instruments hardware product model Revision Configuration National Instruments software product Version Configuration The problem is List any error m
40. g amp play Systems Alliance VMEbus eXtensions for Instrumentation A group of VXI developers dedicated to making VXI devices as easy to use as possible primarily by simplifying software development G 11 VXI DIO 128 User Manual Glossary W waveform Multiple voltage readings taken at a specific sampling rate wire Data path between nodes word serial The simplest required communication protocol used by message based devices in the VXIbus system It uses the A16 communication registers to transfer data with a simple polling handshake method VXI DIO 128 User Manual G 12 National Instruments Corporation bulletin board support C 1 C cabling custom 1 5 circuit breaker 3 4 to 3 5 3 7 4 5 common questions See questions about VXI DIO 128 ComponentWorks application software 1 2 configuration See also installation common questions B 1 to B 2 parts locator diagram 2 2 VXIbus logical address 2 3 to 2 4 customer communication ix C 1 to C 2 D data transceivers 4 3 digital input circuitry 4 4 to 4 5 input connector signal connection descriptions table 3 4 pin assignments figure 3 2 power on states of DIO lines on I O connector B 2 specifications A 1 digital I O connector digital I O connector operation 4 5 pin description digital input pin assignments figure 3 2 digital output pin assignments figure 3 3 power on states of DIO lines B 2 O National Instruments Corporation 1 1 Index
41. ght 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 National Instruments installation operation or maintenance instructions owner s modification of the pr
42. he VXIbus matches the module s selected I O logical address the module is enabled and the corresponding register on the VXI DIO 128 is accessed In addition the VXIbus interface circuitry monitors and transmits the VXIbus interface circuitry signals 82C55A Programmable Peripheral Interface The eight 82C55A PPI chips are the heart of the VXI DIO 128 Each of these chips has 24 programmable I O pins that represent three 8 bit ports A B and C However the VXI DIO 128 uses only ports A and B of each PPI Although the 82C55A has three modes of operation the VXI DIO 128 uses only one of them the simple I O mode mode 0 Output Circuitry The VXI DIO 128 has 64 open drain output drivers using the Texas Instruments TPIC6273DW chip Each of the 64 output drivers can sink up to 250 mA at up to 42 V Each output has built in transient suppression diodes which protect against the voltage spikes that are generated when relays turn off and on It is possible to concurrently switch a total of 12 A 250 mA on 64 channels Writing a to a given line turns the relay driver on which will ground the output pin When using a line as a general purpose output an inversion occurs You can independently program the eight 8 bit digital output banks using the NI DAQ driver software or the VXIplug play instrument driver See Figure 4 2 for a diagram of the output circuitry O National Instruments Corporation 4 8 VXI DIO 128 User Manual Chapt
43. hielded screw terminals For more specific information about these products refer to your National Instruments catalogue or call the office nearest you National Instruments offers cables and accessories for you to prototype your application or to use if you frequently change module interconnections You can interface the VXI DIO 128 to a wide range of test instruments I O racks and modules screw terminal panels and almost any device with a parallel interface The VXI DIO 128 digital I O connector is a standard 96 pin DIN header connector Adapters for this header connector expand the interface to four 50 pin ribbon cables The pin assignments of the expansion cables are compatible with standard 24 channel I O module mounting racks such as those manufactured by Opto 22 and Gordos Refer to your National Instruments catalogue for specific information O National Instruments Corporation 1 5 VXI DIO 128 User Manual Chapter 1 Introduction Unpacking Your VXI DIO 128 module is shipped in an antistatic package to prevent electrostatic damage to the module Electrostatic discharge can damage several components on the module To avoid such damage in handling the module take the following precautions e Ground yourself via a grounding strap or by holding a grounded object e Touch the antistatic package to a metal part of your V XIbus chassis before removing the module from the package e Remove the module from the package and i
44. ize modules in D size mainframes 4 Insert the VXI DIO 128 in the slot you have selected a Align the top and bottom of the module with the card edge guides inside the mainframe b Slowly push the VXI DIO 128 straight into the slot until its plug connectors are resting on the backplane receptacle connectors c Using evenly distributed pressure slowly press the VXI DIO 128 straight in until it seats in the expansion slot d Make sure the front panel of the VXI DIO 128 is even with the front panel of the mainframe 5 Tighten the retaining screws on the top and bottom edges of the front panel 6 Replace or close any doors or covers to the mainframe O National Instruments Corporation 2 5 VXI DIO 128 User Manual Chapter 2 Configuration and Installation Software Installation VXI DIO 128 User Manual If you are using a VXIplug amp play instrument driver follow the instructions in the Setup Utility on the diskettes that were included with your VXI DAQ hardware This user manual assumes that the VISA software is installed If VISA is not installed you must get the VISA software from the supplier of your V XIbus controller If you are using NI DAQ refer to your release notes Find the installation section for your operating system and follow the instructions given there If you are using LabVIEW refer to your LabVIEW release notes to install your application software After you have installed LabVIEW refer to the
45. mbols are listed in the Glossary Viii National Instruments Corporation About This Manual National Instruments Documentation The VXI DIO 128 User Manual is one piece of the documentation set for your VXI data acquisition V XI DAQ system You could have any of several types of manuals depending on the hardware and software in your system Use the different types of manuals you have as follows Your VXI DAQ hardware user manuals These manuals have detailed information about the VXI DAQ hardware that plugs into or is connected to your computer Use these manuals for hardware installation and configuration instructions specification information about your VXI DAQ hardware and application hints Software documentation Y ou may have both application software and driver software documentation National Instruments application software includes ComponentWorks LabVIEW LabWindows CVI Measure and VirtualBench National Instruments driver software includes NI DAQ and VXIplug amp play instrument drivers After you set up your hardware system use either your application or driver software documentation to help you write your application If you have a large complicated system it is worthwhile to look through the software documentation before you configure your hardware Accessory installation guides or manuals If you are using accessory products read the terminal block and cable assembly installation guides or accessory boar
46. nspect the module for loose components or any other sign of damage Notify National Instruments if the module appears damaged in any way Do not install a damaged module into your V XIbus backplane Never touch the exposed pins of connectors VXI DIO 128 User Manual 1 6 National Instruments Corporation Chapter Configuration and Installation This chapter describes how to configure and install your VXI DIO 128 module Module Configuration This section describes how to configure the V XIbus logical address on your VXI DIO 128 Figure 2 1 shows the VXI DIO 128 as it appears with the component side facing you The drawing shows the location of various module components including the logical address switch O National Instruments Corporation 2 1 VXI DIO 128 User Manual Chapter 2 Configuration and Installation au a Wl Ge E o 2 D sooo Real ces nm EE L H ment Fe fr i ap B map fado g dan co i us d cies D eo n cue in ONAL NATI INSVRUMENTS x VXI DIU 188 ncmo Pn Lh Cort is Gei 3 3 e f Bgonoooono 8 Gre Sen O I a a E T o r4 gt a D s o 208 a peior M0 08 pozo lt RP32S Ugp33 RP34 RP3S ipao ne Bess Ses v
47. oduct 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 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 LabVIEW NI DAQ RTSI ComponentWorks Measure MITE SCXI and VirtualBench are trademarks of National Instruments Corporation Product and company names listed are trademarks or trade names of their respective companies WARNING REGARDING MEDICAL AND CLINICAL USE OF NATIONAL INSTRUMENTS PRODUCTS National Instruments products are not designed with components and testing intended to ensure a level of reliability suitable for use in treatment and diagnosis of humans Applications of National Instruments products involving medical or clinical treatment can create a potential for accidental injury caused by product failure or by errors on the part of the user or application designer Any use or application of National Instruments products for or involving medical or clinical treatment must be performed by properly trained and qualified medical personnel and all traditional medical safeguards equipment and procedures that are appropriate in the particular situati
48. on to prevent serious injury or death should always continue to be used when National Instruments products are being used National Instruments products are NOT intended to be a substitute for any form of established process procedure or equipment used to monitor or safeguard human health and safety in medical or clinical treatment Table of Contents About This Manual Organization of This Manual essere ener nennen nennen vii Conventions Used in This Manual esses eene eene nnne nn vili National Instruments Documentation eese eene eene tenerent nnne enn ix Customer Communication cccccccesscccccesssseecececesssaeccecsessaececcsensaececeeesesseeecesenssaeeeeees ix Chapter 1 Introduction About the V XIE DIO 128 Massai nes 1 1 What You Need to Get Started A 1 2 Software Programming Choices eese nennen nter ennt 1 2 National Instruments Application Software ooooonnccccnionconcnancononnonnccnnonaconocnnos 1 2 NI DAQ Driver Software sess enne nnne 1 3 VXIplug play Instrument Driver eese 1 4 Optional Equiprent iii rette bed tei e ore e use 1 5 Custom Cabling ica RA eolit E 1 5 V npackinp to E Her ph E OR Ped e bas 1 6 Chapter 2 Configuration and Installation Module Configuration minis isses 2 1 VXlIbus Logical Address reete rettet epit 2 3 Hardware Installation deett e ore et Going sees et eere eie e een die ee 2 5 Software Installa
49. perate at their peak performance NI DAQ maintains a consistent software interface among its different versions so that you can change platforms with minimal modifications to your code VXIplug play Instrument Driver National Instruments distributes VXIplug play instrument drivers free of charge VXIplug amp play instrument drivers are one level above the NI DAQ device driver and contain high level software functions whose architecture is specified by the VXIplug amp play Systems Alliance The VXIplug amp play standards increase interoperability with other vendors and ensure that drivers are designed and presented in a consistent fashion that facilitates ease of use Refer to Figure 1 1 to see the relationship between your software components LabVIEW or Other Application LabWindows CVI Development Environments VXIplug amp play Instrument Driver NI DAQ Driver Software VISA VXI DAQ Hardware Figure 1 1 The Relationship between the Programming Environment Your Instrument Driver and Your Hardware VXI DIO 128 User Manual 1 4 National Instruments Corporation Chapter 1 Introduction Optional Equipment Custom Cabling National Instruments offers a variety of products to use with your VXI DIO 128 module including cables connector blocks and other accessories as follows Cables and cable assemblies shielded and ribbon e Connector blocks shielded and uns
50. r processor Also known as shared memory Memory that can be simultaneously accessed by more than one controller or processor A method of automatically assigning logical addresses to V XIbus devices at system startup or other configuration times Each slot can contain one or more devices Different devices within a slot can share address decoding hardware 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 dB A device that has its logical address assigned by the Resource Manager A VXI device initially responds at Logical Address 255 when its MODID line is asserted The Resource Manager subsequently assigns it a new logical address which the device responds to until powered down An intelligent CPU controller interface plugged directly into the VXI backplane giving it direct access to the VXIbus It must have all of its required VXI interface capabilities built in Erasable Programmable Read Only Memory ROM that can be erased usually by ultraviolet light exposure and reprogrammed Signals or interrupts generated by a device to notify another device of an asynchronous event The contents of events are device dependent In this configuration a plug in interface board in a computer is connected to the VXI mainframe via one or more VXIbus extended controllers The computer then exerts overall control over VXIbus syst
51. red to uniquely specify a byte location in a given space Valid numbers for n are 16 24 and 32 In VME V XL because there are six address modifiers there are 64 possible address spaces A portion of address space that can be accessed from the application program American National Standards Institute An assembly typically a printed circuit board with 96 pin connectors and signal paths that bus the connector pins V XIbus systems will have two sets of bused connectors called the J1 and J2 backplanes or have three sets of bused connectors called the J1 J2 and J3 backplane A memory address that serves as the starting address for programmable registers All other addresses are located by adding to the base address binary coded decimal One binary digit either O or 1 The group of conductors that interconnect individual circuitry in a computer Typically a bus is the expansion vehicle to which I O or other devices are connected Eight related bits of data an eight bit binary number Also used to denote the amount of memory required to store one byte of data G 2 National Instruments Corporation channel CMOS command commander component software Configuration Registers crosstalk D A DAQ O National Instruments Corporation Glossary Celsius Pin or wire lead to which you apply or from which you read the analog or digital signal Analog signals can be single ended or differential For digital
52. rough electronic fax and telephone systems to quickly provide the information you need Our electronic services include a bulletin board service an FTP site a FaxBack system and e mail support If you have a hardware or software problem first try the electronic support systems If the information available on these systems does not answer your questions we offer fax and telephone support through our technical support centers which are staffed by applications engineers Electronic Services Bulletin Board Support National Instruments has BBS and FTP sites dedicated for 24 hour support with a collection of files and documents to answer most common customer questions From these sites you can also download the latest instrument drivers updates and example programs For recorded instructions on how to use the bulletin board and FTP services and for BBS automated information call 512 795 6990 You can access these services at United States 512 794 5422 or 800 327 3077 Up to 14 400 baud 8 data bits 1 stop bit no parity United Kingdom 01635 551422 Up to 9 600 baud 8 data bits 1 stop bit no parity France 1 48 65 15 59 Up to 9 600 baud 8 data bits 1 stop bit no parity FTP Support To access our FTP site log on to our Internet host ftp natinst com as anonymous and use your Internet address such as joesmith anywhere com as your password The support files and documents are located in the support directories O
53. tion ss sasaka E EEE E Aa na E a a aka a na a A ag aa aana ena Dan 2 6 Chapter 3 Signal Connections T O Connector Pin Description seeseeasenn nean aenanaena anana amanna nanam nennen naen nenen 3 1 Input Connector Signal Connection Descriptions eee 3 4 Output Connector Signal Connection Descriptions eene 3 5 Power Connections ee eR oerte pup 3 7 O National Instruments Corporation V VXI DIO 128 User Manual Table of Contents Chapter 4 Theory of Operation Data Transceivers nes pep ed Gabo ee epe 4 3 V XIbus Interface CCU i sie ce ecce e t ee t erect ertet 4 3 82C55A Programmable Peripheral Interface A 4 3 Output Circuitry ci sa saa paga tette te ica 4 3 Input Creu re EE 4 4 Digital VO Connector 7 iore mre m mne ee Ee 4 5 Serial Number EPROM 2 u 22 222282 22 Een 4 5 Temperature Sensor E 4 5 Appendix A Specifications Appendix B Common Questions Appendix C Customer Communication Glossary Index Figures Figure 1 1 The Relationship between the Programming Environment Your Instrument Driver and Your Hardware eene 1 4 Figure 2 1 VXI DIO 128 Parts Locator Diagram sese 2 2 Figure 2 2 Logical Address Selection sse 2 4 Figure 3 1 Digital Input Connector Pin Assignments sese 3 2 Figure 3 2 Digital Output Connector Pin Assignments sese 3 3 Figure 3 3 Digital V
54. tional unit making up the module The block diagram in Figure 4 1 illustrates the key functional components of the VXI DIO 128 module O National Instruments Corporation 4 1 VXI DIO 128 User Manual Theory of Operation Chapter 4 8 o o c c o o o Ave IXA ASTA Silo SSSIPPY IKA g1 seur7 sseippy IKA Sour onu09 IKA eze pue MOV SLIM ATOSAS LSUSAS Joy 4948 91 PIRO IKA JONGOSURIL WEA IKA 102U09 pueog pue eoeyelul IKA v904Wd3 yous sdwy 1948918 Weu Ate sdwy Jay Weu AZL sduy zz 1948918 INDIO AS pubis JONUOO 5628 INO Ave Ino ner SIEUBIS 0000 SSB 2 0 eea qug co eea qua SIUBS JONUOO Sze co eea qua 1801507 sexni JSsienjeosuva eq jejsibo 20 seg snoauejjeos n jeisibo mue snoauejleosn 20 era aua Josua mereda nono lanan PIoysexyL 2 0 eea aug zo eea aug SIEUDLS 0 1009 6628 2 0 eea aug Sieubis 01002 5628 2 0 ea qug a pue y ssoze SI pue p spod indino g pue v ssoze i puezi suod ndino g pue v ssoze HL pue OL suog indino 8 pue v ssoze Gpueg Suog 1ndino g pue v ssoze Lpueg suog indu a pue v ssoze Spuer suog Indul a pue v ssoze puez suog Indul 20 am ino 0 YM LNO 20 am ino 20 vM NO 20 am ino 20 vM NO 0 am LNO 20 vM NO ULL 2 0 8Z NI andi 111 2 0 WZ NI
55. tions lists the VXI DIO 128 specifications Appendix B Common Questions contains commonly asked questions and their answers relating to usage and special features of your VXI DIO 128 module Appendix C Customer Communication contains forms you can use to request help from National Instruments or to comment on our products The Glossary contains an alphabetical list and description of terms used in this manual including abbreviations acronyms metric prefixes mnemonics symbols and terms vii VXI DIO 128 User Manual About This Manual e The Index alphabetically lists the topics in this manual including the page where you can find each one Conventions Used in This Manual bold bold italic italic NI DAQ PPI VXI DIO 128 User Manual The following conventions are used in this manual Angle brackets containing numbers separated by an ellipses represent a range of values associated with a bit or signal name For example PortO_Line lt 7 0 gt Bold text denotes the names of menus menu items or dialog box buttons or options Bold italic text denotes a note caution or warning Italic text denotes emphasis a cross reference or an introduction to a key concept NI DAQ is used throughout this manual to refer to the NI DAQ software device driver PPI refers to one of the eight programmable peripheral interface chips on the VXI DIO 128 Abbreviations acronyms metric prefixes mnemonics and sy
56. y to test my module without having to program the module The NI DAQ Configuration Utility formerly WDAOCONF has a Test menu with some excellent tools for doing simple functional tests of the module such as testing the digital I O lines Also the Test Configuration option will verify that the logical address for the module is current How can I select a VXI DIO 128 module as my device type in the NI DAQ Configuration Utility Refer to your Release Notes Using Your NI DAQ 4 9 0 Software with Your VXI Data Acquisition Module document for specific instructions What are the power on states of the DIO lines on the I O connector At system power on and reset the output lines are off high impedance and are pulled up to 4 V The input lines are always configured as inputs Refer to the Output Circuitry section and Input Circuitry section in Chapter 4 Theory of Operation for more information B 2 National Instruments Corporation Appendix Customer Communication For your convenience this appendix contains forms to help you gather the information necessary to help us solve your technical problems and a form you can use to comment on the product documentation When you contact us we need the information on the Technical Support Form and the configuration form if your manual contains one about your system configuration to answer your questions as quickly as possible National Instruments has technical assistance th
57. yright Trademarks The VXI DIO 128 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 manual is accurate The document has been carefully reviewed for technical accuracy In the event that technical or typographical errors exist National Instruments reserves the ri

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