NI 2565 User Manual
Contents
1. 1 4 NI SWITCH Driver Software 1 4 National Instruments Application Software 1 4 Third Party Software 1 5 Chapter 2 NI 2565 Operation Safety Instructions 2 1 Functional Overview 2 2 General Purpose Relays 2 4 Switch Control Circuitry 2 4 Random Scanning 2 4 PXI Interface 2 5 Triggers 2 5 External Trigger Input 2 5 Scanner Advanced2. 2 6 Modes 2 6 Initiating Scanning 2 6 Multicard Triggering 2 7 Appendix A Specifications Appendix B Customizing Your Card Contents NI 2565 User Manual viii National Instruments Corporation Appendix C Architecture Drawing Appendix D Common Questions Appendix E Customer Communication Glossary Index Figures Figure 1 1 Front Connector Pinout Assignments 1 3 Figure 2 1 NI 2565 Module Block Diagram 2 3 Figure B 1 NI 2565 Parts Locator Diagram B 2 Figure B 2 Replacing a Relay B 4 Figure C 1 NI 2565 Switch Architecture C 2 Table Table 1 1 Front Connector Signal Description 1 3 National Instruments Corporation 1 1 NI 2565 User Manual 1 Routing Signals with Your NI 2565 This manual describes the electrical and mechanical aspects of the NI 2
3. 2 000 m Safety Approved Usage UL listed PXI or Compact PCI Chassis Installation Category Category II Pollution Degree II Reinforced Insulation Rating Channel to Earth 250 V Basic Insulation Rating Channel to Channel 250 V Certifications and Compliances CE Mark Compliance This product meets applicable EU directives as follows Safety Isolation low voltage safety EN 61010 1 1993 EMC Directive Immunity EN 50082 1 1992 Emissions EN 55011 1991 Group 1 Class A at 10 m National Instruments Corporation B 1 NI 2565 User Manual B Customizing Your Card This appendix describes options for customizing your NI 2565 card Flyback Voltage Protection When inductive loads are connected to the relays a large counter electromotive force may occur at relay switching time due to the energy stored in the inductive load These flyback voltages can severely damage the relay contacts and greatly shorten the life of the relay You can limit flyback voltages at your inductive load by installing a flyback diode for DC loads or a varistor for AC loads The NI 2565 module has solder connections for a diode or varistor With this diode varistor installed you
4. What should I do if scanning does not work First ensure that you have configured the switch card and the instrument to match trigger lines The output trigger of the instrument should connect to the trigger input of the switch card In addition the scanner advanced trigger of the switch card should be connected to the input trigger of the instrument If the switch card is used to initiate the scan make sure the DMM is waiting for a trigger before enabling scanning on the switch card This is the recommended method for hardware scanning If the DMM is used to initiate the scan enable scanning on the switch card before configuring the DMM to start taking measurements Also be sure to check the return codes of the NI SWITCH operation to ensure that there are no errors negative value or warnings positive value You can also use the NI Spy utility to check for error codes Appendix D Common Questions NI 2565 User Manual D 2 National Instruments Corporation Finally verify that your code is correct For reference see the examples described in the NI SWITCH Software User Manual The NI SWITCH driver also ships with several examples in source code Compare your algorithm to the ones in the examples Do I need to program the switch card myself The NI 2565 comes with the NI SWITCH driver software which exports the full functionality of the card NI SWITCH handles the complex issues of direct memory
5. 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 __________________________________________________________________
6. The electrical life of the relay is approximately 105 operations when switching at the rated load You can order a relay replacement kit from National Instruments The replacement kit includes 16 new relays Follow these instructions to replace the failed relay Refer to Figure B 1 1 Ground yourself via a grounding strap or a ground connected to your PXI chassis Properly grounding yourself prevents damage to your PXI module from electrostatic discharge 2 Remove the four screws that fasten the NI 2565 relay module board to the switch carrier module and front panel 3 Lift up the card as shown in Figure B 1 4 Remove the relay by applying force in the direction shown in Figure B 2 5 Before inserting the new relay match the direction of the relay and the socket 6 Insert the relay making sure the relay is properly seated and the socket hooks the top of the relay 7 Reassemble the module Appendix B Customizing Your Card NI 2565 User Manual B 4 National Instruments Corporation Figure B 2 Replacing a Relay When removing the relay apply force in the direction as shown 1 Match the direction of relay and socket 2 Seat the relay securely so that the socket hooks on the top surface of the relay Correct Incorrect National Instruments Corporation C 1 NI 2565 User Manual C Architecture Drawing This appendix contains an architecture drawing for the NI 2565 switch card Relay names
7. _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ List any error messages ___________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ The following steps reproduce the problem ___________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ NI 2565 Hardware and Software Configuration Form Record the settings and revisions of your hardware and software on the line to the right of each item Complete a new copy of this form each time you revise your software or hardware configuration and use 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 Nat
8. access interrupts and operating system interfacing National Instruments Corporation E 1 NI 2565 User Manual E 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 through electronic fax and telephone systems to quickly provide the information you need Our electronic services include a bulletin board service an FTP site a fax on demand 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 servic
9. are based on the signal names For example the relay that connects CH9 to COM9 is named CH9 Appendix C Architecture Drawing NI 2565 User Manual C 2 National Instruments Corporation Figure C 1 NI 2565 Switch Architecture COM1 CH1 COM0 CH0 COM2 CH2 COM4 CH4 COM5 CH5 COM3 CH3 COM6 CH6 COM7 CH7 COM8 CH8 COM9 CH9 COM11 CH11 COM12 CH12 COM10 CH10 COM13 CH13 COM14 CH14 COM15 CH15 National Instruments Corporation D 1 NI 2565 User Manual D Common Questions This appendix addresses common questions you may have while using your NI 2565 switch card What should I do if the software detects the board but the switches do not switch Verify that the switches do not switch Close your application program and then launch the soft front panel as described in the Set up and Test document you received with your kit The soft front panel shows the state of each relay on the board Try closing and opening the switches Also be sure to check the return codes of the NI SWITCH operation to ensure that there are no errors negative value or warnings positive value You can also use the NI Spy utility to check for error codes Finally verify that your code is correct For reference see the examples described in the NI SWITCH Software User Manual The NI SWITCH driver also ships with several examples in source code Compare your algorithm to those in the examples
10. can limit flyback voltages when switching inductive loads Caution Before installing the diode or varistor in your module ensure that no signals are connected to your module front connector Before installing your module in the PXI chassis install the diode varistor by performing the following steps Refer to Figure B 1 Appendix B Customizing Your Card NI 2565 User Manual B 2 National Instruments Corporation 1 Ground yourself via a grounding strap or a ground connected to your PXI chassis Properly grounding yourself prevents damage to your PXI module from electrostatic discharge 2 Loosen the four screws that fasten the NI 2565 relay module board to the switch carrier module and front panel Figure B 1 NI 2565 Parts Locator Diagram 1 Carrier module 2 Solder location for flyback voltage protection device 3 Relay module 4 Screws 5 Insulator 6 Relay and socket 7 Ribbon cable 1 2 3 4 5 6 7 Appendix B Customizing Your Card National Instruments Corporation B 3 NI 2565 User Manual 3 Remove the plastic insulator cover 4 Lift up the card and disconnect the ribbon cable from the relay module 5 Insert the diode varistor into the appropriate location labeled RVx where x corresponds to the channel number 6 Solder and trim the leads 7 Reassemble the module Replacing Relays The NI 2565 uses socketed relays which are easy to replace when they fail
11. take to avoid injury data loss or a system crash This icon to the left of bold italicized text denotes a warning which advises you of precautions to take to avoid being electrically shocked bold italic Bold italic text denotes a note caution or warning italic Italic text denotes variables emphasis a cross reference or an introduction to a key concept This font also denotes text from which you supply the appropriate word or value as in CHx National Instruments Corporation vii NI 2565 User Manual Contents Chapter 1 Routing Signals with Your NI 2565 About the NI 2565 1 1 Triggers 1 1 High Voltage 1 2 Contact Protection 1 2 Connecting Signals 1 3 Front Connector 1 3 Screw Terminal Accessory 1 4 Software Choices
12. 1 Routing Signals with Your NI 2565 NI 2565 User Manual 1 2 National Instruments Corporation High Voltage The NI 2565 general purpose switch card is rated for reinforced insulation 250 V Cat II This classification provides safety insulation from any terminal to any other accessible part on the card The switch card is rated for basic insulation 250 V Cat II from any screw terminal connection to any other screw terminal connection Insulation coordination can be achieved only if transient overvoltages are controlled to specified levels Refer to the Glossary for more information about Categories I and II overvoltage specifications Caution For additional safety if you will be switching power lines or high voltage place an F7A 250 V in line fuse before the switch card Always disconnect the screw terminal plug from the front connector before removing the module from the PXI chassis Before applying high voltage to the module always tighten the four captive screws to provide a ground connection from the module to the chassis Warning Do not exceed 250 V channel to channel or channel to ground Any connections that exceed the maximum settings for the NI 2565 can result in an electrical shock hazard and damage to the switch card and any or all of the boards connected to the PXI backplane National Instruments is NOT liable for any damages or injuries resulting from exceeding maximum voltage ratings Refer to Appendix A Speci
13. 2 4 generated wattage A 2 H high voltage 1 2 I I O connector A 3 I O mating connector A 3 initiating scanning 2 6 input characteristics A 1 Index NI 2565 User Manual I 2 National Instruments Corporation installation of diode varistor B 1 of NI 2565 module B 1 insulation coordination of 1 2 rating A 3 reinforced 1 2 insulator in Parts Locator Diagram B 2 interrupt handling 1 4 IVI Interchangeable Virtual Instrument 1 4 definition of G 3 L LabVIEW 1 4 LabVIEW NI SWITCH VI Library 1 4 LabWindows CVI 1 4 LabWindows CVI NI SWITCH Library 1 5 M master switch card 2 7 maximum altitude environment A 3 maximum switching capacity per channel A 1 exceeding capability A 2 power per channel A 1 rate dynamic characteristics A 2 voltage A 1 modes 2 6 module block diagram 2 3 multicard triggering 2 7 N NI 2503 switch card using in conjunction 2 7 NI 2565 about 1 1 architecture drawing C 1 common questions D 1 customizing B 1 definition of 1 1 expected life A 2 front connector 1 3 functional overview 2 2 general purpose relays 2 4 module block diagram 2 3 operate and release times 2 4 operation 2 1 parts locator diagram B 2 routing signals 1 1 safety instructions 2 1 switch architecture C 2 technical support form E 3 E 5 NI Spy utility D 1 NI SWITCH driver software 1 4 D 2 features of 1 4 NI SWITCH Software User Manual 2 7 D 1 D 2 num
14. 565 general purpose 16 channel 1form A mechanical relay switch card and contains information concerning its installation and operation About the NI 2565 This section summarizes the features and operation of the NI 2565 switch card Refer to Chapter 2 NI 2565 Operation for more complete details In addition refer to Appendix A Specifications for detailed specifications of the switch card The NI 2565 is a 16 channel general purpose relay switch card The NI 2565 uses single pole single throw also known as 1form A relays The board can switch voltages up to 250 VAC and 125 VDC and currents up to 7 A AC and 5 A DC You can use the National Instruments NI SWITCH software included with your kit to configure and operate the NI 2565 switch card Triggers Two triggers are used to handshake the NI 2565 switch with other PXI instruments The Scanner Advanced trigger indicates when the card has closed all the necessary switches for the next scan and the switches have settled or debounced The External Trigger Input trigger is sourced by another instrument or by software and causes the NI 2565 to advance to the next entry in the scan list The triggers can be routed to any of the PXI TTL triggers or to the PXI star trigger If no external trigger input is available you can have the software trigger the NI 2565 to advance to the next entry in the scan list Refer to Chapter 2 NI 2565 Operation for more information on triggers Chapter
15. Computer Based Instruments NI 2565 User Manual 16 Channel Mechanical Relay Switch NI 2565 User Manual December 1998 Edition Part Number 322121A 01 Internet Support E mail support natinst com FTP Site ftp natinst com Web Address http www natinst com Bulletin Board Support BBS United States 512 794 5422 BBS United Kingdom 01635 551422 BBS France 01 48 65 15 59 Fax on Demand Support 512 418 1111 Telephone Support USA Tel 512 795 8248 Fax 512 794 5678 International Offices Australia 03 9879 5166 Austria 0662 45 79 90 0 Belgium 02 757 00 20 Brazil 011 288 3336 Canada Ontario 905 785 0085 Canada Qu bec 514 694 8521 Denmark 45 76 26 00 Finland 09 725 725 11 France 01 48 14 24 24 Germany 089 741 31 30 Hong Kong 2645 3186 Israel 03 6120092 Italy 02 413091 Japan 03 5472 2970 Korea 02 596 7456 Mexico 5 520 2635 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 United Kingdom 01635 523545 National Instruments Corporate Headquarters 6504 Bridge Point Parkway Austin Texas 78730 5039 USA Tel 512 794 0100 Copyright 1998 National Instruments Corporation All rights reserved Important Information Warranty The NI 2565 switch card and accessories are warranted against defects in materials and workmanship for a period of one year from the date of shipment as evidenced by receipts or other docume
16. ______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ Thank you for your help Name _________________________________________________________________________ Title __________________________________________________________________________ Company _______________________________________________________________________ Address ________________________________________________________________________ _______________________________________________________________________________ E Mail Address __________________________________________________________________ Phone ___ __________________________ Fax ___ _______________________________ Mail to Technical Publications Fax to Technical Publications National Instruments Corporation National Instruments Corporation 6504 Bridge Point Parkway 512 794 5678 Austin Texas 78730 5039 National Instruments Corporation G 1 NI 2565 User Manual Glossary Prefix Meanings Valu
17. ber of relays A 1 O onboard control logic capabilities 2 5 one time scanning 2 5 operate and release times 2 4 operating temperature A 3 operation 2 1 overvoltage specifications categories G 2 P parts locator diagram B 2 pin assignments front connector 1 3 power requirement A 2 programming 1 4 PXI interface 2 5 A 2 PXI star trigger 2 5 2 6 PXI trigger bus A 2 PXI TTL trigger 2 5 2 6 Index National Instruments Corporation I 3 NI 2565 User Manual R random scanning 2 4 reinforced insulation 1 2 relative humidity environment A 3 relay 1form A 1 1 electrical life of B 3 names C 1 operate time A 2 release time A 2 relay and socket in Parts Locator Diagram B 2 replacing relays B 3 B 4 ribbon cable B 2 routing signals 1 1 S safety 2 1 A 3 B 1 scan list clearing resetting 2 5 SCANADV trigger modes 2 6 scanner advanced trigger 1 1 2 6 definition of G 5 scanning common questions D 1 continuous 2 5 initiating 2 6 NI SWITCH driver software 1 4 one time 2 5 random 2 4 SCC switch control circuitry 2 4 screw terminal accessory 1 4 signals connections 1 3 single pole single throw relays 1 1 slave switch card 2 7 software choices 1 4 data acquisition 1 4 data analysis 1 4 graphical data presentation 1 4 instrument control 1 4 National Instruments application software 1 4 NI SWITCH driver software 1 4 third party software 1 5 solder locati
18. continuously loop through the scan list PXI Interface The NI 2565 switch card has a PXI interface through which you can use your driver software to configure and control the card The NI 2565 takes advantage of PXI features It uses the PXI TTL triggers to synchronize scanning with a measurement device such as a National Instruments NI 4060 PXI digital multimeter DMM Triggers External Trigger Input The NI 2565 can use an external trigger input to advance between scan setups in a scan list Using the driver software you can configure the switch card to route the external trigger from any of the PXI TTL trigger lines or the PXI star trigger Alternatively you can use a software command to trigger the switch card All external trigger lines are compatible with TTL voltage levels and are edge sensitive The minimum pulse width from the PXI TTL triggers and PXI star trigger is 70 ns Chapter 2 NI 2565 Operation NI 2565 User Manual 2 6 National Instruments Corporation Scanner Advanced The NI 2565 can generate a scanner advanced trigger to indicate when the switch card is set up and ready to take measurements Using the driver software you can configure the switch card to route the scanner advanced SCANADV trigger to any PXI TTL trigger line or to the PXI star trigger You can configure the switch card to generate the SCANADV trigger when a relay has settled or debounced Because the NI 2565 has open collector drives o
19. device uses a trigger to advance the multiplexer to the next channel in the scan scan list a list of channels supplied to NI SWITCH that indicates the order in which channels will be scanned Glossary National Instruments Corporation G 5 NI 2565 User Manual scanner advanced trigger the trigger generated by the switch card when scanning The trigger occurs after the switch card has closed a switch and the switch has settled sensor a device that responds to a physical stimulus heat light sound pressure motion flow and so on and produces a corresponding electrical signal settling time the amount of time required for a voltage to reach its final value within specified limits soft front panel a graphical program included with NI SWITCH that you can use to interactively control the switch T thermistor a semiconductor sensor that exhibits a repeatable change in electrical resistance as a function of temperature Most thermistors exhibit a negative temperature coefficient thermocouple a temperature sensor created by joining two dissimilar metals The junction produces a small voltage as a function of the temperature trigger any event that causes or starts some form of data capture TTL Transistor Transistor Logic V V volts varistor an electrical resistor whose resistance depends on the applied voltage VDC volts direct current VI virtual instrument 1 a combination of hardware and or softwar
20. e n nano 10 9 micro 10 6 m milli 10 3 k kilo 103 M mega 106 G giga 109 Numbers and Symbols degrees ohms percent plus or minus 1form A single pole single throw relay A A amperes AC alternating current ANSI American National Standards Institute B breakpoint a specified point in program code where the program pauses to perform some action a breakpoint interrupt can be added to a scan list for debugging or other special needs Glossary NI 2565 User Manual G 2 National Instruments Corporation bus 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 Examples of PC buses are the ISA and PCI bus C C Celsius Category I Category II CAT I CAT II These categories refer to different levels in impulse voltage Category I is at the signal level and refers to special equipment or parts of equipment telecommunication electronic and so on with smaller transient overvoltages than Category II Category II is local level and refers to such items as appliances and portable equipment The impulse withstand voltages for each category are as follows Voltage Phase to_Earth Category I Category II 150 V 800 V 1 500 V 300 V 1 500 V 2 500 V channel pin or wire lead on the multiplexer to which you apply or from which you read t
21. e 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 Glossary NI 2565 User Manual G 6 National Instruments Corporation W W watts wire data path between nodes National Instruments Corporation I 1 NI 2565 User Manual Index A antistatic cautions 1 3 architecture drawing C 1 B BBS tech support E 1 C C 1 5 carrier module B 2 Categories I and II overvoltage specifications G 2 certifications and compliances A 3 commands in scan list capabilities 2 4 common mode voltage A 1 common questions D 1 configuration NI SWITCH driver software 1 4 connecting signals 1 3 contact material A 1 on resistance A 1 protection 1 2 contact bounce definition of G 2 continuous scanning 2 5 current switching capabilities 1 1 customer communication E 1 customizing B 1 D debounced See also contact bounce definition of G 2 diagram parts locator B 2 dimensions A 3 diode varistor installation B 1 DMM and multicard triggering 2 7 dynamic characteristics A 2 E electronic services E 1 expected life A 2 external trigger 2 7 F flyback voltage B 1 definition of G 3 flyback voltage protection B 1 front connector 1 3 signal description of 1 3 functional overview 2 2 fuse safety 1 2 G general purpose relays
22. e the NI SWITCH readme file for version support information National Instruments Corporation 2 1 NI 2565 User Manual 2 NI 2565 Operation This chapter contains safety instructions and a functional overview of the NI 2565 switch card and explains the operation of each functional unit making up the switch card Safety Instructions Caution Do NOT OPERATE THIS INSTRUMENT IN AN EXPLOSIVE ATMOSPHERE OR WHERE THERE MAY BE FLAMMABLE GASES OR FUMES Equipment described in this document must be used in an Installation Category II environment per IEC 664 This category requires local level supply mains connected installation To prevent safety hazards the maximum voltage between any of the channel inputs and the ground of the computer should never exceed 250 VDC or 250 Vrms DO NOT OPERATE DAMAGED EQUIPMENT The safety protection features built into this instrument can become impaired if the instrument becomes damaged in any way If the instrument is damaged do not use it until service trained personnel can check its safety If necessary return the instrument to National Instruments for service and repair to ensure that its safety is not compromised Do not operate this instrument in a manner that contradicts the information specified in this document Misuse of this instrument could result in a shock hazard DO NOT SUBSTITUTE PARTS OR MODIFY EQUIPMENT beyond what is described in Appendix B Customizing Your Card Because of
23. ector Chapter 2 NI 2565 Operation NI 2565 User Manual 2 4 National Instruments Corporation General Purpose Relays The general purpose relay consists of 16 channels CH0 through CH15 Each channel has a corresponding common COM0 through COM15 Each channel connects to the corresponding common by closing its relay The relay name is based on the corresponding signal name For example the relay connecting CH9 to COM9 is CH9 You can have multiple channels connected to the corresponding commons simultaneously See Appendix C Architecture Drawing for an illustration of the NI 2565 architecture The NI 2565 relays are single side stable When power is removed from the relay coil the relay returns to its de energized state The de energized state opens all the relays disconnecting each channel signal from its corresponding common Switch Control Circuitry The switch control circuitry SCC is responsible for opening and closing relays on the NI 2565 You can load commands for the SCC into memory storage using the driver software you received with your kit Consult the online help or your software documentation for specific information on the appropriate commands There are two reasons for storing the commands in memory before the SCC can process them The operate and release times for the NI 2565 are 10 ms and 5 ms respectively Using memory storage the software can send multiple commands to the SCC without having to wa
24. er the FCC Rules This device complies with the FCC rules only if used with shielded interface cables of suitable quality and construction National Instruments used such cables to test this device and provides them for sale to the user The use of inferior or nonshielded interface cables could void the user s authority to operate the equipment under the FCC rules If necessary consult National Instruments or an experienced radio television technician for additional suggestions The following booklet prepared by the FCC may also be helpful Interference to Home Electronic Entertainment Equipment Handbook This booklet is available from the U S Government Printing Office Washington DC 20402 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 Conventions The following conventions are used in this manual lt gt Angle brackets containing numbers separated by an ellipsis represent a range of values associated with a port bit or signal name for example CH lt 0 15 gt stands for the signals CH0 through CH15 This icon to the left of bold italicized text denotes a note which alerts you to important information This icon to the left of bold italicized text denotes a caution which advises you of precautions to
25. er the copyright laws this publication may not be reproduced or transmitted in any form electronic or mechanical including photocopying recording storing in an information retrieval system or translating in whole or in part without the prior written consent of National Instruments Corporation Trademarks CVI LabVIEW and PXI are trademarks of National Instruments Corporation Product and company names mentioned herein 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 situation 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 proces
26. es and for BBS automated information call 512 795 6990 You can access these services at United States 512 794 5422 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 01 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 NI 2565 User Manual E 2 National Instruments Corporation Fax on Demand Support Fax on Demand is a 24 hour information retrieval system containing a library of documents on a wide range of technical information You can access Fax on Demand from a touch tone telephone at 512 418 1111 E Mail Support Currently USA Only You can submit technical support questions to the applications engineering team through e mail at the Internet address listed below Remember to include your name address and phone number so we can contact you with solutions and suggestions support natinst com Telephone and Fax 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
27. etween two instruments such as a switch and a DMM to synchronize their actions Hz hertz the number of scans read or updates written per second I in inches Interchangeable Virtual Instrument an advanced architecture for instrument drivers that includes features such as simulation and state caching I O input output the transfer of data to from a computer system involving communications channels operator interface devices and or data acquisition and control interfaces ISA Industry Standard Architecture IVI See Interchangeable Virtual Instrument Glossary NI 2565 User Manual G 4 National Instruments Corporation M MB megabytes of memory N NI SWITCH an IVI based instrument driver that supports the National Instruments line of switch cards P PXI PCI with extensions for instrumentation R random scanning scanning the channels in a mux in any order relay a switch that connects or disconnects the signal to a common through the physical movement of a metal arm RMA Return Material Authorization rms root mean square the square root of the average value of the square of the instantaneous signal amplitude a measure of signal amplitude RTD resistance temperature detector a metallic probe that measures temperature based upon its coefficient of resistivity S s seconds scan the data acquisition of signals connected to multiple channels of a multiplexer Typically the measurement
28. fications for information Contact Protection Caution When inductive loads are connected to the relays a large counter electromotive force may occur at relay switching time due to the energy stored in the inductive load These flyback voltages can severely damage the relay contacts and greatly shorten the life of the relay It is best to limit flyback voltages at your inductive load by installing a flyback diode for DC loads or a varistor for AC loads Refer to Appendix B Customizing Your Card for more information on flyback voltage protection Chapter 1 Routing Signals with Your NI 2565 National Instruments Corporation 1 3 NI 2565 User Manual Connecting Signals This section describes the signal connections to the NI 2565 module via the module front connector This section also includes specifications and connection instructions for the signals on the NI 2565 module connectors Caution Static electricity is a major cause of component failure To prevent damage to the electrical components in the module observe antistatic precautions whenever removing a module from the chassis or whenever working on a module Front Connector The following diagram shows the pin assignments for the NI 2565 front connector Table 1 1 describes the connector signals Figure 1 1 Front Connector Pinout Assignments Table 1 1 Front Connector Signal Description Signal Name Type Description CH lt 0 15 gt Input Output Chan
29. g in the Microsoft operating systems and frees you to focus on creating your test system National Instruments Application Software LabVIEW and LabWindows CVI are innovative program development software packages for data acquisition and control applications LabVIEW uses graphical programming whereas LabWindows CVI enhances traditional programming languages Both packages include extensive libraries for data acquisition instrument control data analysis and graphical data presentation Using LabVIEW or LabWindows CVI can significantly reduce the development time for your data acquisition and control application LabVIEW features interactive graphics a state of the art user interface and a powerful graphical programming language The LabVIEW NI SWITCH VI Library a series of virtual instruments VIs for using LabVIEW with National Instruments switch hardware is included with the NI SWITCH driver Chapter 1 Routing Signals with Your NI 2565 National Instruments Corporation 1 5 NI 2565 User Manual LabWindows CVI features interactive graphics a state of the art user interface and uses the ANSI standard C programming language The LabWindows CVI NI SWITCH Library a series of functions for using LabWindows CVI with National Instruments switch hardware is included with the NI SWITCH driver Third Party Software The NI SWITCH instrument driver also includes support files for Microsoft Visual C and Microsoft Visual Basic Se
30. he analog or digital signal Signals can be single ended or differential contact bounce the intermittent switching that occurs when the movable metal parts of a relay make or break contact D DC direct current debounced indicates when the contact bounce has ended See contact bounce device a plug in board card or pad that can contain multiple channels and conversion devices Some examples of devices are computers multimeters multiplexers oscillators operator interfaces and counters digital multimeter a multifunction meter used to make measurements such as voltage current resistance frequency temperature and so on DIN Deutsche Industrie Norme diode an electronic component that acts primarily as a one way valve Glossary National Instruments Corporation G 3 NI 2565 User Manual DMA direct memory access a method by which data can be transferred to from computer memory from to a device or memory on the bus while the processor does something else DMA is the fastest method of transferring data to from computer memory DMM See digital multimeter drivers driver software software that controls a specific hardware device such as a switch card E external trigger a voltage pulse from an external source that triggers an event such as A D conversion F flyback voltage the voltage spike generated the instant current stops flowing through an inductor H handshaking the use of two trigger lines b
31. ies________________________________________________________________ _______________________________________________________________________________ Instruments connected to switch _____________________________________________________ _______________________________________________________________________________ List All Boards in PXI Mainframe PXI Slot Manufacturer Description and Function 1 2 3 4 5 6 7 8 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 NI 2565 User Manual Edition Date December 1998 Part Number 322121A 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 _
32. ine This is also possible when you reset the switch card Chapter 2 NI 2565 Operation National Instruments Corporation 2 7 NI 2565 User Manual Multicard Triggering You can use multiple NI 2565 switch cards or multiple other National Instruments switch cards such as the NI 2503 together in conjunction with an instrument such as a DMM In multiple switch card systems be sure to identify one switch card as the master switch card All other switch cards for the system are identified as slave switch cards The master switch card can route an external trigger from the front connector to a PXI backplane trigger In addition the master switch card can route the SCANADV trigger from the PXI backplane to either the front connector or another backplane trigger This functionality makes it possible to wire external triggers from to only one switch card in the system which simplifies the wiring scheme Note The NI 2565 does not support triggers on the front panel connector If the measurement instrument is external to the chassis you must use a different National Instruments switch card such as the NI 2503 as the master switch card For more information refer to the NI SWITCH Software User Manual National Instruments Corporation A 1 NI 2565 User Manual A Specifications This appendix lists the specifications for the NI 2565 switch card These specifications are typical at 25 C unless otherwise noted Input Character
33. ional Instruments Products Hardware revision ________________________________________________________________ Switching mode__________________________________________________________________ List National Instruments Software Installed and Version NI SWITCH version _______________________________________________________________ LabVIEW version _________________________________________________________________ LabWindows CVI version___________________________________________________________ Other National Instruments software version ____________________________________________ ________________________________________________________________________________ Programming choice _______________________________________________________________ Other Products PXI chassis make and model________________________________________________________ Microprocessor __________________________________________________________________ Clock frequency or speed __________________________________________________________ Type of video board installed _______________________________________________________ Operating system version __________________________________________________________ Operating system mode____________________________________________________________ Programming language ____________________________________________________________ Programming language version______________________________________________________ Switch accessor
34. istics Number of Relays 16 Common Mode Voltage Channel to Channel 250 Vrms 250 VDC Channel to Earth 250 Vrms 250 VDC Maximum Switching Voltage AC 250 Vrms DC 125 VDC Maximum Switching Capacity per Channel DC 5 A 30 VDC resistive load DC 3 A 30 VDC inductive load AC 7 A 250 VAC resistive load AC 5 A 250 VAC inductive load Maximum Switching Power per Channel 1750 VA 150 W Contact On Resistance Initial 30 m Contact Material Gold flash over silver alloy Appendix A Specifications NI 2565 User Manual A 2 National Instruments Corporation Dynamic Characteristics Maximum Switching Rate 5 cycles s at rated load Relay Operate Time 20 C Typical 5 ms Maximum 10 ms Relay Release Time 20 C Typical 4 ms Maximum 5 ms Expec
35. it for a relay action to complete The memory is used to store a scan list necessary for hardware random scanning Random Scanning The NI 2565 can perform random scanning In random scanning the switch card can open or close relays in any order The scan list is downloaded to onboard memory Commands in the scan list can Open or close relays Wait for an external trigger Chapter 2 NI 2565 Operation National Instruments Corporation 2 5 NI 2565 User Manual Generate a scanner advanced trigger Generate a breakpoint interrupt You can use the driver software to configure the switch card for continuous or one time scanning In continuous scanning the switch card cycles through the scan list until you disable scanning For one time scanning the switch card runs through the scan list only once You can also use software commands to clear the scan list or reset it to the beginning at any time The onboard control logic for the NI 2565 switch card gives you direct access to open and close the relays and also the capability to download up to 1024 random scanning instructions The software included with the card automatically configures the NI 2565 and downloads the scan list to hardware for you The scan list itself downloads directly into the memory of the card to deliver the fastest scan possible with no controller intervention You can configure the switch card to process the scan list once or to
36. ll 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 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 Und
37. n the PXI TTL trigger lines you can have multiple switch cards using the same trigger line in the multicard SCANADV mode Modes SCANADV has two modes of operation In its default mode the SCANADV trigger asserts for 1 s after the relay has debounced You can also configure the switch card for handshaking mode in which the SCANADV trigger goes high after a relay settles and the SCANADV trigger goes low after the external trigger input asserts You can use this handshaking mode for multicard scanning Note The NI 2565 ignores external triggers when it is not in a wait for trigger state while scanning Initiating Scanning When you use the NI 2565 to initiate a scan make sure the measurement device is armed waiting for trigger before enabling scanning on the switch card Enabling scanning causes the first switch es in the scan list to close and generates a scanner advanced trigger after the relay switches have settled or debounced When you use the measurement device to initiate a scan make sure scanning is enabled on the NI 2565 before the measurement device starts to take measurements This ensures that the switch card has the correct signal routed and that the switch card is waiting for an external trigger from the measurement device Always configure the triggers in a system before configuring the measurement device or the NI 2565 for scanning When triggers are configured a state change or pulse could occur on the trigger l
38. nels Where signals are connected to the switch card COM lt 0 15 gt Input Output Common The common for the respective channel COM7 CH7 COM6 CH6 COM5 CH5 COM4 CH4 COM3 CH3 COM2 CH2 COM1 CH1 COM0 CH0 16 16 15 15 14 14 13 13 12 12 11 11 10 10 9 9 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 COM15 CH15 COM14 CH14 COM13 CH13 COM12 CH12 COM11 CH11 COM10 CH10 COM9 CH9 COM8 CH8 A B Chapter 1 Routing Signals with Your NI 2565 NI 2565 User Manual 1 4 National Instruments Corporation Screw Terminal Accessory Your kit includes a screw terminal mini combicon connector with protective housing and strain relief Software Choices You have several options to choose from when programming your National Instruments switch card You can use the NI SWITCH driver software or National Instruments application software NI SWITCH Driver Software The NI SWITCH instrument driver is an Interchangeable Virtual Instrument IVI compliant instrument driver that is bundled with NI SWITCH cards at no cost NI SWITCH features a set of operations and attributes that exercise all the functionality of the switching hardware including configuration opening closing and scanning In addition NI SWITCH comes with an interactive soft front panel and online documentation NI SWITCH eliminates the need to understand complex register programming and interrupt handlin
39. ntation 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 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 sha
40. on for flyback voltage protection B 2 specifications A 1 overvoltage specifications categories G 2 storage temperature A 3 storing commands in memory reasons for 2 4 switch architecture C 2 switch card common questions D 1 master 2 7 programming D 2 slave 2 7 switch control circuitry SCC 2 4 T technical support bulletin board support E 1 configuration form E 3 customer communication E 1 documentation comment form E 7 e mail support E 2 fax on demand support E 2 FTP support E 1 hardware and software configuration E 5 telephone and fax support E 2 transient overvoltages 1 2 triggers external trigger input 1 1 2 5 2 7 minimum pulse width from 2 5 multicard 2 7 on front panel connector 2 7 PXI star trigger 2 5 2 6 PXI TTL 2 5 2 6 Index NI 2565 User Manual I 4 National Instruments Corporation SCANADV trigger modes 2 6 2 7 scanner advanced trigger 1 1 2 6 definition of G 5 types used 1 1 wait for trigger state 2 6 U user interface 1 5 V Visual Basic 1 5 voltage switching capabilities 1 1 W wait for trigger state 2 6 weight A 3
41. s procedure or equipment used to monitor or safeguard human health and safety in medical or clinical treatment Compliance FCC DOC Radio Frequency Interference Class A Compliance This equipment generates and uses radio frequency energy and if not installed and used in strict accordance with the instructions in this manual 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 This equipment has been tested and found to comply with the following two regulatory agencies Federal Communications Commission This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Notices to User Changes or modifications not expressly approved by National Instruments could void the user s authority to operate the equipment und
42. support Country Telephone Fax Australia 03 9879 5166 03 9879 6277 Austria 0662 45 79 90 0 0662 45 79 90 19 Belgium 02 757 00 20 02 757 03 11 Brazil 011 288 3336 011 288 8528 Canada Ontario 905 785 0085 905 785 0086 Canada Qu bec 514 694 8521 514 694 4399 Denmark 45 76 26 00 45 76 26 02 Finland 09 725 725 11 09 725 725 55 France 01 48 14 24 24 01 48 14 24 14 Germany 089 741 31 30 089 714 60 35 Hong Kong 2645 3186 2686 8505 Israel 03 6120092 03 6120095 Italy 02 413091 02 41309215 Japan 03 5472 2970 03 5472 2977 Korea 02 596 7456 02 596 7455 Mexico 5 520 2635 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 United Kingdom 01635 523545 01635 523154 United States 512 795 8248 512 794 5678 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
43. ted Life Mechanical 180 cpm 5 107 operations Electrical at Maximum Switching Capacity 105 operations Caution Exceeding the maximum switching capability will decrease the expected life of the NI 2565 PXI Bus Interface Slave PXI Trigger Bus Trigger Lines 8 Star Trigger 1 Power Requirement 5 VDC Minimum All Relays Opened 350 mA Maximum All Relays Closed 1 4 A Generated Wattage All Relays Opened 1 75 W All Relays Closed 0 0 A per Channel 7 0 W All Relays Closed 5 0 A per Channel 21 5 W All Relays Closed 7 0 A per Channel 35 0 W Appendix A Specifications National Instruments Corporation A 3 NI 2565 User Manual Physical Dimensions 10 by 16 by 4 cm 3 9 by 6 3 by 1 6 in Weight 0 41 kg 0 9 lb I O Connector 16 x 2 mini combicon header I O Mating Connector Two 1 x 16 mini combicon connectors Environment Operating Temperature 0 to 50 C Storage Temperature 20 to 70 C Relative Humidity 5 to 85 non condensing Maximum Altitude
44. the danger of introducing additional hazards do not install unauthorized parts or modify the instrument Return the instrument to National Instruments for service and repair to ensure that its safety is not compromised Connections that exceed any of the maximum signal ratings on the NI 2565 can create a shock or fire hazard or can damage any or all of the devices connected to Chapter 2 NI 2565 Operation NI 2565 User Manual 2 2 National Instruments Corporation the NI 2565 National Instruments is NOT LIABLE FOR ANY DAMAGES OR INJURIES resulting from incorrect signal connections Clean instrument and accessories by brushing off light dust with a soft nonmetallic brush Remove other contaminants with a stiff nonmetallic brush The unit must be completely dry and free from contaminants before returning to service Functional Overview The following block diagram illustrates the key functional components of the NI 2565 switch card module The major components of the NI 2565 module are as follows General purpose relays Relay switch control circuitry Random scanning PXIbus interface Triggers Chapter 2 NI 2565 Operation National Instruments Corporation 2 3 NI 2565 User Manual Figure 2 1 NI 2565 Module Block Diagram COM1 CH1 COM2 CH2 COM14 CH14 COM0 CH0 COM15 CH15 Front Connector Relay Control Triggers PXI Interface Scan Memory PXIbus Conn
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