SCXI-1161 User Manual
Contents
1. About This Manual subroutines device names functions variables filenames and extensions and for statements and comments taken from program code NB refers to the NuBus series computers PC refers to the IBM PC XT the IBM PC AT and compatible computers SCXIbus refers to the backplane in the chassis A signal on the backplane is referred to as the SCXIbus lt signal name gt line or signal The SCXIbus descriptor may be omitted when the meaning is clear Slot 0 refers to the power supply and control circuitry in the SCXI chassis The Glossary lists abbreviations acronyms metric prefixes mnemonics symbols and terms National Instruments Documentation The SCXI 1161 User Manual is one piece of the documentation set for your data acquisition DAQ and SCXI 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 e Getting Started with SCXI This is the first manual you should read It gives an overview of the SXCI system and contains the most commonly needed information for the modules chassis and software e You SCXI hardware user manuals Read these manuals next for detailed information about signal connections and module configuration They also explain in greater detail how the module works and contain application hints e Your DAQ hardware user manuals These manuals have detailed informatio2. Fax on Demand support C 2 flyback diode for DC inductive loads figure 3 2 SCXI 1161 User Manual Index flyback voltage See contact protection for inductive load connections FTP support C 1 H hardware installation 2 9 inductive load connections contact protection for See contact protection for inductive load connections installation hardware 2 9 unpacking the SCXI 1161 1 6 INTR signal SCXIbus to SCXI 1161 pin equivalencies table 3 8 J jumpers overview of use 2 5 parts locator diagram 2 2 jumpers W1 and W2 configuration table 2 7 overview of use 2 5 to 2 6 using the jumpers 2 6 to 2 7 jumpers W3 W4 and W5 configuration of DIO and MIO boards table 2 8 overview of use 2 5 using the jumpers 2 8 L LabVIEW software 1 2 LabWindows CVI software 1 2 SCXI 1161 User Manual 1 2 MIO boards jumper W3 W4 and W5 configuration table 2 8 MISO signal jumper W1 and W2 connections 2 5 to 2 7 SCXIbus to SCXI 1 161 pin equivalencies table 3 8 module configuration See configuration MOSI signal SCXIbus to SCXI 1161 pin equivalencies table 3 8 NI DAQ driver software 1 3 to 1 4 0 operating environment specifications A 2 operation of SCXI 1161 See theory of operation P parts locator diagram 2 2 physical specifications A 2 R rear signal connector 3 4 to 3 8 digital I O connections 3 7 pin assignments figure 3 5 SCXIbus to SCXI 1 161 pin equivalen
3. User Manual 8 Channel Power Relay Module SCXI 1161 r May 1997 Edition Part Number 320514B 01 Copyright 1993 1997 National Instruments Corporation All Rights Reserved Internet Support 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 BBS United Kingdom 01635 551422 BBS France 01 48 65 15 59 Ju Fax on Demand Support 512 418 1111 AN ZS COOK X Telephone Support U S Tel 512 795 8248 Fax 512 794 5678 Os 0 International Offices Australia 03 9879 5166 Austria 0662 45 79 90 0 Belgium 02 757 00 20 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 5734815 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 U K 01635 523545 National Instruments Corporate Headquarters 6504 Bridge Point Parkway Austin TX 78730 5039 Tel 512 794 0100 Important Information Warranty Copyright Trademarks The SCXI 1161 is warranted against defects in materials and workmanship for a period of one year from the date of shipment as evidenced by receipts o
4. Glossary SCXI 1161 User Manual A arc suppressor pad locations figure 3 3 arc suppressor placement COM to NC table 3 3 COM to NO table 3 2 bulletin board support C 1 C cables custom 1 5 channel rating specifications A 1 to A 2 ComponentWorks software 1 2 configuration 2 1 to 2 8 jumper configuration 2 5 jumper use 2 5 jumpers W1 and W2 2 5 to 2 7 jumpers W3 W4 and W5 2 8 parts locator diagram 2 2 safety cautions 2 3 to 2 4 contact protection for inductive load connections 3 1 to 3 4 arc suppressor pad locations figure 3 3 arc suppressor placement COM to NC table 3 3 COM to NO table 3 2 flyback diode for DC inductive loads figure 3 2 signal connection procedure 3 4 technical data sheet B 1 to B 6 National Instruments Corporation Index custom cables 1 5 customer communication xii C 1 to C 2 D D A signal SCXIbus to SCXI 1161 pin equivalencies table 3 8 DAQD A signal description table 3 6 SCXIbus to SCXI 1161 pin equivalencies table 3 8 DIG GND signal table 3 6 digital control circuitry 4 4 digital interface circuitry 4 3 to 4 4 digital I O signal connections 3 7 documentation conventions used in manual x xi National Instruments documentation xi xii organization of manual ix x related documentation xii E electronic support services C 1 to C 2 e mail support C 2 equipment optional 1 5 F fax and telephone numbers C 2
5. 2 Configuration and Installation Hardware Installation Q Note National Instruments Corporation You can install the SCXI 1161 in any available SCXI chassis After you have made any necessary changes and have verified and recorded the jumper settings on the form in Appendix C Customer Communication you are ready to install the SCXI 1161 The following are general installation instructions consult the user manual or technical reference manual of your SCXI chassis for specific instructions and warnings 1 Turn off the computer that contains the data acquisition board or disconnect the data acquisition board from your SCXI chassis Turn off the SCXI chassis Do not insert the SCXI 1161 into a chassis that is turned on After you have connected your signals to the screw terminals insert the SCXI 1161 into the board guides Gently guide the module into the back of the slot until the connectors make good contact If you have already installed a cable assembly in the rear of the chassis you must firmly engage the module and cable assembly however do not force the module into place Screw the front mounting panel of the SCXI 1161 to the top and bottom threaded strips of your SCXI chassis If you will connect this module to an MIO 16 or a DIO 24 data acquisition board attach the connector at the metal end of the SCXI 1340 cable assembly to the rear signal connector on the SCXI 1161 module Screw the rear panel to the rear
6. I O first in first out feet hexadecimal Hardscan Control Register hertz G 2 O National Instruments Corporation INTR out LSB MIO MISO MOSI MOV MSB NC NO input output input current leakage input current inches Interrupt output current least significant bit megabytes of memory meters multifunction I O Master In Slave Out Master Out Slave In metal oxide varistor most significant bit normally closed normally open National Instruments Corporation G 3 Glossary SCXI 1161 User Manual Glossary R RAM RESET RMA rms RTSI SCXI SDK sec SERCLK SERDATIN SERDATOUT SL SLOTOSEL SPDT SPI SPICLK SS U UL SCXI 1161 User Manual random access memory reset Return Material Authorization root mean square Real Time System Integration Signal Conditioning eXtensions for Instrumentation bus Software Developer s Kit seconds Serial Clock Serial Data In Serial Data Out Slot Slot 0 Select single pole double throw Serial Peripheral Interface Serial Peripheral Interface Clock Slot Select Underwriters Laboratory G 4 O National Instruments Corporation volts Positive Analog Supply Negative Analog Supply volts alternating current volts direct current volts input high volts input low volts in volts output high volts output low volts out volts root mean square watts O National Instruments Corporation G 5
7. five jumpers on the SCXI 1161 are for digital communication between the data acquisition board and the SCXI 1161 module Only one module per chassis is connected to the data acquisition board which allows communication with all other modules On the other modules the jumper settings are irrelevant The SCXI 1161 has two jumpers W1 and W2 for communication between the SCXI 1161 and the data acquisition board Jumpers W3 W4 and WS indicate to the module what type of data acquisition board will be connected to the module rear signal connector Jumper W1 Position 1 connects a 2 2 kQ pullup resistor to the SERDATOUT line This is the factory default setting Position 3 disconnects the pullup resistor from the SERDATOUT line Jumper W2 Position 1 connects the SCXIbus MISO line after buffering to the SERDATOUT pin of the rear signal connector This is the National Instruments Corporation 2 5 SCXI 1161 User Manual Chapter 2 Configuration and Installation factory default setting In this setting along with the proper setting of jumper W1 the data acquisition board can read the Module ID Register of the SCXI 1161 See the SCXI Register Level Programmers Manual for information on reading the Module ID Register See the cable installation guide of your cable for the pin equivalences of the SCXI 1161 rear signal connector and the data acquisition board I O connector Position 3 disconnects SERDATOUT from the SCXIbus MISO line
8. threaded strip Attach the loose end of the cable to the data acquisition board For installation procedures with other SCXI accessories and data acquisition boards consult the cable installation guide of your cable 2 6 S Check the installation Turn on the SCXI chassis Turn on the computer or reconnect the data acquisition board to your chassis The SCXI 1161 module is installed and ready for operation 2 9 SCXI 1161 User Manual Chapter Signal Connections This section describes the signal connections to the SCXI 1161 board via the SCXI 1161 screw terminals and rear signal connector and includes specifications and connection instructions for the SCXI 1161 connector signals Screw Terminal Connections The SCXI 1161 has 24 screw terminals for easy signal connection to the inputs Each input consists of a common COM position a normally closed NC position and a normally open NO position At power up and at reset the SCXI 1161 COM positions on all the channels connect to the NC positions All contacts have a working common mode voltage of 250 VAC or VDC The contact to contact breakdown voltage is 750 V The contact to coil breakdown voltage is 1 500 V Please refer to the module specifications listed in Appendix A Specifications for further details before connecting the signals to the relay contacts Contact Protection for Inductive Load Connections When inductive loads are connected to th
9. ui AE zo 9661 1HDIHAdOO O L 1911 1X98 _ be ry 7 5 158187 I3816z a bd o EN boss EE EE ets cea DEE cm 2 amp ENEE CHERCHE 3 0o o hl o js FRONT FRONT FRONT FRONT FRONT FRONT FRONT H L3 H I5 T SEE Tes SES SES SS Fees E ie el FEES 89 Sie 525 paia Ul Li 3 o Bi WR WR WM WD g SE Se Eg 2 2 hone 2 SE L DE Gaz NIYNIS OL OJI 38 ISAW ANNONA O Lis IN3S3MU SI JOVLTOA HOIH l E oD EG ER 9v c cen Oc Q Ss E o ow 3 ve Mos DO oA o GEO 5 o BoD 7 tc SE no E T S a 5 PA tc amp LL SCXI 1161 User Manual Figure 2 1 SCXI 1161 General Parts Locator Diagram National Instruments Corporation Chapter 2 Configuration and Installation j Caution DO NOT OPERATE THE DEVICE IN AN EXPLOSIVE ATMOSPHERE OR WHERE THERE MAY BE FLAMMABLE GASES OR FUMES KEEP AWAY FROM LIVE CIRCUITS Do not remove equipment covers or shields unless you are trained to do so If signal wires are connected to the device hazardous voltages may exist even when the equipment is turned off To avoid a shock hazard do not perform procedures involving cover or shield removal unless you are qualified to do so and disconnect all field power prior to removing covers or shields 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 DO NOT OPERATE DAMAGED EQUI
10. 00 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 timed D A conversion digital I O counter timer operations SCXI RTSI self calibration messaging and acquiring data to 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 DAQ devices because it lets multiple devices operate at their peak performance NI DAQ also internally addresses many of the complex issues between the computer and the DAQ hardware such as programming interrupts and DMA controllers NI DAQ maintains a consistent software interface among its different versions so that you can change platforms with minimal modifications to your code Whether you are using conventional programming languages LabVIEW LabWindows CVI or other application software your application uses the NI DAQ driver software as illustrated in Figure 1 1 National Instruments Corporation 1 8 SCXI 1161 User Manual C
11. 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 National Instruments Corporation C 1 SCXI 1161 User Manual B 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 U S 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 support Telephone Fax Australia 03 9879 5166 03 9879 6277 Austria 0662 45 79900 0662 45 79 90 19 Belgium 02 757 00 20 02 757 03 11 Canada Ontario 905 785 0085 905 785 0086 Canada Quebec 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
12. 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 5734815 03 5734816 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 UK 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 softwar
13. PMENT The safety protection features built into this device can become impaired if the device becomes damaged in any way If the device is damaged turn the device off and do not use until service trained personnel can check its safety If necessary return the device to National Instruments for service and repair to ensure that its safety is not compromised Do not operate this equipment in a manner that contradicts the information specified in this document Misuse of this equipment could result in a shock hazard Terminals are for use only with equipment that has no accessible live parts DO NOT SUBSTITUTE PARTS OR MODIFY EQUIPMENT Because of the danger of introducing additional hazards do not install unauthorized parts or modify the device Return the device to National Instruments for service and repair to ensure that its safety features are not compromised When using the device with high common mode voltages you MUST insulate your signal wires for the highest input voltage National Instruments is NOT liable for any damages or injuries resulting from inadequate signal wire insulation Use only 26 to 14 AWG wire with a voltage rating of 300 V and 60 C for measuring 250 to 300 V use only 600 V and 60 C for measuring 480 V Prepare your signal wire by stripping the insulation no more than 7 mm When connecting or disconnecting signal lines to the SCXI terminal block screw terminals make sure the lines are powered off Potential dif
14. SCXI 1161 rear signal connector is a 50 pin male ribbon cable header The manufacturer part number National Instruments uses for this header is as follows e AMP Inc part number 1 103310 0 The mating connector for the SCXI 1161 rear signal connector is a 50 position polarized ribbon socket connector with strain relief National Instruments uses a polarized or keyed connector to prevent inadvertent upside down connection to the SCXI 1161 Recommended manufacturer part numbers for this mating connector are as follows e Electronic Products Division 3M part number 3425 7650 e T amp B Ansley Corporation part number 609 5041CE Standard 50 conductor 28 AWG stranded ribbon cables that work with these connectors are as follows Hlectronic Products Division 3M part number 3365 50 e T amp B Ansley Corporation part number 171 50 National Instruments Corporation 1 5 SCXI 1161 User Manual Chapter 1 Introduction Unpacking Your SCXI 1161 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 SCXI chassis before removing the module from the package e Remove the module from the package and inspect the module for loo
15. Using Jumpers W1 and W2 If you do not connect a module to a data acquisition board the positions of jumpers W1 and W2 are irrelevant Jumpers W1 and W2 give the data acquisition board access to the MISO line on the backplane You can use the MISO line to read the Module ID Register of modules National Instruments software does not use this ability You must indicate to the software which module is in which slot An open collector driver drives the SERDATOUT line An open collector driver actively drives low or goes to a high impedance state relying on a pullup resistor to make the signal line go high When using a single chassis set both jumpers W1 and W2 to position on the SCXI 1161 that is connected to the data acquisition board In this setting the module drives MISO to SERDATOUT and connects the necessary pullup resistor to the SERDATOUT line When using multiple chassis set jumper W2 to position 1 on all of the SCXI 1161s that are cabled to the data acquisition board Set jumper W1 to position I on only one of the SCXI 1161s that are cabled to the data acquisition board It does not matter which of the SCXI 1161s that are cabled to the data acquisition board has the pullup connected Set jumper W1 to position 3 on all of the other SCXI 1161 modules that are cabled to the data acquisition board If too many pullup resistors are attached to the SERDATOUT line the drivers cannot drive the line low Tables 2 1 and 2 2 list the description a
16. al Instruments data acquisition board and cable assembly you do not need to read the remainder of this chapter If you will also use the SCXI 1180 feedthrough panel the SCXI 1343 rear screw terminal adapter or the SCXI 1351 one slot cable extender with the SCXI 1161 read this section 3 4 National Instruments Corporation Chapter 3 Signal Connections Figure 3 3 shows the pin assignments for the SCXI 1161 rear signal connector 23 24 DIG GND MIO SERDATIN 25 26 SERDATOUT MIO DAQD A 27 28 SLOTOSEL 29 30 DIO SERCLK 31 32 33 34 35 36 MIO SERCLK 37 38 39 40 41 42 43 44 45 46 DIO SERDATOUT 47 48 49 50 DIG GND DIO Figure 3 3 SCXI 1161 Rear Signal Connector Pin Assignment National Instruments Corporation 3 5 SCXI 1161 User Manual Chapter 3 Signal Connections Rear Signal Connector Signal Descriptions Table 3 3 shows the rear signal connector signal descriptions Table 3 3 Rear Signal Connector Signal Descriptions Pin Signal Name Description 24 or 50 DIG GND Digital Ground Supplies the reference for data acquisition board digital signals and is tied to the module digital ground Pin 50 is for DIO type boards Pin 24 is for MIO type boards Jumper W3 selects the pin 25 SERDATIN Serial Data In Taps into the SCXIbus MOSI line to prov
17. apter 2 Configuration and Installation describes the SCXI 1161 jumper configurations installation of the SCXI 1161 into the SCXI chassis signal connections to the SCXI 1161 and cable wiring Chapter 3 Signal Connections describes the signal connections to the SCXI 1161 board via the SCXI 1161 screw terminals and rear signal connector and includes specifications and connection instructions for the SCXI 1161 connector signals Chapter 4 Theory of Operation contains a functional overview of the SCXI 1161 module and explains the operation of each functional unit making up the SCXI 1161 Appendix A Specifications lists the specifications for the SCXI 1161 Appendix B Contact Protection contains technical data on contact protection when you are switching inductive loads ix SCXI 1161 User Manual About This Manual e Appendix C Customer Communication contains forms you can use to request help from National Instruments or to comment on our products e The Glossary contains an alphabetical list and description of terms used in this manual including abbreviations acronyms metric prefixes mnemonics and symbols e The Index contains an alphabetical list of key terms and topics in this manual including the page where you can find each one Conventions Used in This Manual DIO board DIO type board italic Lab board MC MIO board MIO type board monospace SCXI 1161 User Manual The following conventi
18. ays or all relays can change states at the same time However each time a relay changes its state the Data Register is rewritten to Refer to the SCXI 1161 Register Level Programmers Manual for further details The relays are break before make but only if you do not exceed the specified relay operation speed In addition each relay is fully isolated from the other relays and from earth ground with a working common mode voltage of 250 V KF Note It is important to notice that this module has no access to the analog backplane this protects the backplane from faults when high voltages are available on the relay contacts National Instruments Corporation 4 5 SCXI 1161 User Manual Specifications Channel Rating Appendix This appendix lists the specifications for the SCXI 1161 These are typical at 25 C and 50 humidity unless otherwise stated The operating temperature range is 0 to 50 C Maximum switching capacity resistive load Channel on resistance Contact material Life Mechanical at 180 cpm Electrical at 20 cpm Isolation Terminal to terminal and terminal to earth Maximum speed 8 A at 125 VAC 6 A at 250 VAC 5 A at 30 VDC 8 A maximum per channel 50 A maximum per module 10 operations minimum 10 at rated load 20 cpm at maximum load 180 cpm at no load ig you operate the mo
19. board and the Lab LC board respectively When you configure the SCXI 1161 for a DIO type board the digital I O signals of the SCXI 1161 match the digital I O lines of the DIO 24 and DIO 96 boards When you use the SCXI 1161 with an SCXI 1348 cable assembly the SCXI 1161 signals match the digital lines of the DIO 32F board National Instruments Corporation 3 7 SCXI 1161 User Manual Chapter 3 Signal Connections Table 3 4 lists the pin equivalences For more information consult the installation guide of your cable Table 3 4 SCXIbus to SCXI 1161 Rear Signal Connector to Data Acquisition Board Pin Equivalences SCXIbus SCXI 1161 MIO Lab NB PC LPM 16 PnP DIO 24 DIO 96 DIO 32F Line Rear Signal Boards Lab PC Connector Lab PC Lab LC MOSI SERDATIN ADIOO PB4 DOUT4 PB3 APB3 DIOB3 D A DAQD A ADIOI PB5 DOUTS PB2 APB2 DIOB2 INTR SLOTOSEL ADIO2 PB6 DOUT6 PBI APBI DIOBI SPICLK SERCLK EXTSTROBE PB7 DOUT7 PBO APBO DIOBO MISO SERDATOUT BDIOO PC1 DIN6 PAO APAO DIOAO SCXI 1161 User Manual 3 8 National Instruments Corporation Chapter Theory of Operation This chapter contains a functional overview of the SCXI 1161 module and explains the operation of each functional unit making up the SCXI 1161 Functional Overview The block diagram in Figure 4 1 shows the key functional components of the SCXI 1161 National Instruments Corporation 4 1 SCXI 1161 User Ma
20. ce Circuitry Block Diagram The digital interface circuitry is divided into a data acquisition section and an SCXIbus section The SCXI 1161 connects to the SCXIbus via a 4x24 metral receptacle and to the data acquisition board via a 50 pin ribbon cable header The digital interface circuitry buffers the digital National Instruments Corporation 4 3 SCXI 1161 User Manual Chapter 4 Theory of Operation signals from the data acquisition board and the SCXIbus and sends signals back and forth between the data acquisition board and the SCXIbus Digital Control Circuitry SCXI 1161 User Manual Serial Data Out lt _ Module ID Register K Figure 4 3 diagrams the SCXI 1161 digital control Buffered Serial Data In 4 Buffered Digital Control Signals Data Register V V NO NO lt 7 4 gt lt 3 0 gt Figure 4 3 SCXI 1161 Digital Control The digital control section consists of the Data Register and the Module ID Register The Data Register is a 2 byte serial in parallel out shift register with relay drive capabilities The Data Register controls the state of the SCXI 1161 relays The complete descriptions of the register bits are given in the SCXI Register Level Programmers Manual At reset or at power up the relays are set to the NC position The Module ID Register is an 8 bit parallel serial in serial out shift register The contents of the Module ID Register are writte
21. cies table 3 8 signal descriptions table 3 6 to 3 7 register level programming 1 4 relay channels 4 5 O National Instruments Corporation S safety cautions 2 3 to 2 4 screw terminal connections 3 1 SCXI 1161 block diagram 4 2 custom cables 1 5 optional equipment 1 5 overview 1 1 parts locator diagram 2 2 requirements for getting started 1 1 software programming choices 1 2 to 1 4 National Instruments application software 1 2 NI DAQ driver software 1 3 to 1 4 register level programming 1 4 unpacking 1 6 SCXIbus to SCXI 1161 rear signal connector to data acquisition board pin equivalencies table 3 8 SERCLK signal description table 3 7 SCXIbus to SCXI 1161 pin equivalencies table 3 8 SERDATIN signal description table 3 6 SCXIbus to SCXI 1161 pin equivalencies table 3 8 SERDATOUT signal description table 3 6 jumper W1 and W2 connections 2 5 to 2 7 SCXIbus to SCXI 1161 pin equivalencies table 3 8 signal connections 3 1 to 3 8 contact protection for inductive load connections 3 1 to 3 4 arc suppressor pad locations figure 3 3 O National Instruments Corporation Index arc suppressor placement COM to NC table 3 3 COM to NO table 3 2 flyback diode for DC inductive loads figure 3 2 signal connection procedure 3 4 rear signal connector 3 4 to 3 8 digital I O connections 3 7 pin assignments figure 3 5 SCXIbus to SCXI 1161 pin equivalencies table 3 8 signa
22. d WI 2 7 Table 2 2 Configuration of Jumpers W3 W4 and W5for DIOTypeand MIO Type Board sss usjenert die setet arista kes pekende 2 8 Table 3 1 Arc Suppressor Placement COM to NO 3 2 Table 3 2 Arc Suppressor Placement COM to NC 3 3 Table 3 3 Rear Signal Connector Signal Descriptions 3 6 Table 3 4 SCXIbus to SCXI 1161 Rear Signal Connector to Data Acquisition Board Pin Equivalences eee fiie iri titre tot rte tes 3 8 National Instruments Corporation Vii SCXI 1161 User Manual This manual describes the electrical and mechanical aspects of the SCXI 1161 and contains information concerning its operation and programming The SCXI 1161 is a member of the National Instruments Signal Conditioning eXtensions for Instrumentation SCXI Series modules for the National Instruments data acquisition plug in boards This module switches and controls power signals The SCXI 1161 operates as eight relay channels Each channel is isolated and independently configurable This manual describes the installation basic programming considerations and theory of operation for the SCXI 1161 Organization of This Manual The SCXI 1161 User Manual is organized as follows National Instruments Corporation Chapter 1 Introduction describes the SCXI 1161 lists the contents of your SCXI 1161 kit describes the optional software optional equipment and custom cables and explains how to unpack the SCXI 1161 kit Ch
23. ductive Load Connections esee 3 1 Signal Connection tette tie eter enr teet Nee 3 4 Rear Signal Connector en Sen e e ee E idee nte 3 4 Rear Signal Connector Signal Descriptions sss 3 6 Digital I O Signal Connections ss 3 7 Chapter 4 Theory of Operation Functional Overview tace erede Ep etuer ee tere pietre eerie eren 4 1 Digital Interface eee ret n there ete Geert 4 3 Digital Control Circuitry sisi 4 4 Relay Channels ee suas Sas EP omite te oett eee de 4 5 Appendix A Specifications Appendix B Contact Protection Appendix C Customer Communication Glossary Index Figures Figure 1 1 The Relationship between the Programming Environment NI DAQ and Your Hardware o ete eher ORDER heir Be 1 4 Figure 2 1 SCXI 1161 General Parts Locator Diagram sese 2 2 Figure 3 1 Contact Protection Using a Flyback Diode for DC Inductive Loads 3 2 Figure 3 2 Arc Suppressor Pad Locations esssesessseesesessterssteresreserrrserrrsrssesrsseet 3 3 SCXI 1161 User Manual vi National Instruments Corporation Table of Contents Figure 3 3 SCXI 1161 Rear Signal Connector Pin Assignment 3 5 Figure 4 1 SCXI 1161 Block Diagram seen 4 2 Figure 4 2 Digital Interface Circuitry Block Diagram sorronornvrrvvrnvrrvvnvrnvrrevreense 4 3 Figure 4 3 SCXI 1161 Digital Control 4 4 Tables Table 2 1 Configuration of Jumpers W1 an
24. dule at high currents later operation at low currents may not be possible 7 Relays are subject to normal wear based on the number of operations 3 Module tested following the UL 3111 and IEC 1010 standard for voltage installation category II for reinforced or double insulation National Instruments Corporation A 1 SCXI 1161 User Manual Appendix A Specifications Operate time Release time Physical Dimensions Connectors Operating Environment Temperature Relative humidity Storage Environment Temperature Relative humidity SCXI 1161 User Manual A 2 15 msec 15 msec 1 2 by 6 8 by 8 0 in 50 pin male ribbon cable rear connector 24 screw terminal adapter 0 to 50 C 5 to 90 at 35 C 55 to 150 C 5 to 90 noncondensing National Instruments Corporation Appendix Contact Protection This appendix contains technical data on contact protection when you are switching inductive loads Art not available in PDF version of this document Copyright Aromat Corporation 1991 Reprinted with permission of copyright owner All rights reserved Aromat Corporation 1991 Relay Technical Data Book National Instruments Corporation B 1 SCXI 1161 User Manual 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 comm
25. e product Version Configuration The problem is List any error messages The following steps reproduce the problem SCXI 1161 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 National Instruments Products DAQ hardware Interrupt level of hardware DMA channels of hardware Base I O address of hardware Programming choice HiQ NI DAQ LabVIEW or LabWindows CVI version Other boards in system Base I O 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 commen
26. e relays a large counter electromotive force can occur at relay switching time because of 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 these flyback voltages at your inductive load by installing across your inductive load a flyback diode for DC loads see Figure 3 1 or an MOV for AC loads Refer to Appendix B Contact Protection for further details National Instruments Corporation 3 1 SCXI 1161 User Manual Chapter 3 Signal Connections SCXI 1161 User Manual COM NC Inductive Load AX Flyback Diode VJJ Figure 3 1 Contact Protection Using a Flyback Diode for DC Inductive Loads In addition the module has pads on which you can place an arc suppressor protection circuit to limit the voltage spike generated during the switching of inductive loads These pads are between the COM position and the NO position and between the COM position and the NC position of the relays To determine where to place each arc suppressor refer to Tables 3 1 and 3 2 which indicate the channel and suppressor pad assignments Table 3 1 Arc Suppressor Placement COM to NO COM to NO Transient Voltage Suppressor Channel Number Reference Designator 0 VR1 1 VR3 2 VR5 3 VR7 4 VR9 5 VRI1 6 VR13 7 VRI5 3 2 National Instruments Corporati
27. ed 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 ix Conventions Used in This Manual D National Instruments Documentation esses eene xi Related Documentation xii Customer Communication xii Chapter 1 Introduction About the SCXT 1161 deet ANEREN 1 1 What Yo Need to Get Started eerie eet eot ecce eee eae 1 1 Software Programming Choices ss 1 2 National Instruments Application Software 1 2 NI DAQ Driver Software ss 1 3 Register Level Programming ss 1 4 Optional Equipment ss tenete eere ret eH VE e Ree Ite eret einer 1 5 Custom C bles 4 eer ette rer e Cede o EG OR eee tett 1 5 Unpacking bee Re IERI eiae 1 6 Chapter 2 Configuration and Installation Module Contig ratlOfi usi dni t ihe rere ep d Hee retra 2 1 Jumper Hee eebe EE 2 5 Jumper Configuration et eee e tee te di regna 2 5 Jumper WT sisse ee es AINA AA AA en ated 2 5 Jumper W2 uen Oen ORDRE REESEN 2 5 Using Jumpers Wl and WI 2 6 Jumpers W3 W4 and W i 2 8 Hardware Installation n cett rtt tte NEE 2 9 National Instruments Corporation V SCXI 1161 User Manual Table of Contents Chapter 3 Signal Connections Screw Terminal Connections ses 3 1 Contact Protection for In
28. ent 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 services 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
29. ew or LabWindows CVI is as easy as using the low level programming described in the register level programmer manual Refer to Software Programming Choices in Chapter 1 Introduction of this manual to learn more about your programming options If you are designing your own module the SCXIbus System Specification is available from National Instruments upon request The specification describes the physical electrical and timing requirements for the SCXIbus Customer Communication SCXI 1161 User Manual National Instruments wants to receive your comments on our products and manuals We are interested in the applications you develop with our products 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 Xii National Instruments Corporation Chapter Introduction This chapter describes the SCXI 1161 lists the contents of your SCXI 1161 kit describes the optional software optional equipment and custom cables and explains how to unpack the SCXI 1161 kit About the SCXI 1161 The SCXI 1161 consists of eight isolated single pole double throw SPDT or one form C relay channel With the SCXI 1161 the SCXI chassis can serve as a controller or switcher in laboratory testing production testing and industrial process mon
30. ferences National Instruments Corporation 2 3 SCXI 1161 User Manual Chapter 2 Configuration and Installation A N Caution SCXI 1161 User Manual between the lines and the SCXI ground create a shock hazard while you connect the lines Connect the signal wires to the screw terminals by inserting the stripped end of the wire full into the terminals Tighten the terminals to a torque of 5 to 7 in Ib Connections including power signals to ground and vice versa that exceed any of the maximum signal ratings on the SCXI device can create a shock or fire hazard or can damage any or all of the boards connected to the SCXI chassis the host computer and the SCXI device National Instruments is NOT LIABLE FOR ANY DAMAGES OR INJURIES resulting from incorrect signal connections If high voltages 230 V ms and 42 4 V peak or 60 VDC are present YOU MUST CONNECT A SAFETY EARTH GROUND WIRE TO THE TERMINAL BLOCK SAFETY GROUND SOLDER LUG This complies with safety agency requirements and protects against electric shock when the terminal block is not connected to the chassis To connect the safety earth ground to the safety ground solder lug run an earth ground wire in the cable from the signal source to the terminal block National Instruments is NOT liable for any damages or injuries resulting from inadequate safety earth ground connections Do not loosen or re orient the safety ground solder lug hardware when connecting the safety ground w
31. hapter 1 Introduction Conventional ComponentWorks Programming Environment LabVIEW LabWindows CVI or VirtualBench NI DAQ Driver Software Personal S rd r gt Computer or araware Workstation Figure 1 1 The Relationship between the Programming Environment NI DAQ and Your Hardware Register Level Programming The final option for programming any National Instruments DAQ hardware is to write register level software Writing register level programming software can be very time consuming and inefficient and is not recommended for most users Even if you are an experienced register level programmer consider using NI DAQ LabVIEW LabWindows CVI or other National Instruments application software to program your National Instruments DAQ hardware Using the National Instruments application software is easier than and as flexible as register level programming and can save weeks of development time SCXI 1161 User Manual 1 4 National Instruments Corporation Chapter 1 Introduction Optional Equipment National Instruments offers a variety of products to use with your SCXI 1611 including cables and other accessories as follows e Cables and cable assemblies e Multichassis adapter e One slot cable extender For more specific information about these products refer to your National Instruments catalogue or call the office nearest you Custom Cables The
32. ide serial input data to a module or Slot 0 26 or 47 SERDATOUT Serial Data Out Taps into the SCXIbus MISO line to accept serial output data from a module Pin 47 is for DIO type boards Pin 26 is for MIO type boards Jumper W5 selects the pin 27 DAQ A Data Acquisition Board Data Address Line Taps into the SCXIbus D A line to indicate to the module whether the incoming serial stream is data or address information SCXI 1161 User Manual 3 6 National Instruments Corporation Chapter 3 Signal Connections Table 3 3 Rear Signal Connector Signal Descriptions Continued Pin Signal Name Description 29 SLOTOSEL Slot 0 Select Taps into the SCXIbus INTR line to indicate whether the information on MOSI is sent to a module or to Slot 0 31 or 37 SERCLK Serial Clock Taps into the SCXIbus SPICLK line to clock the data on the MOSI and MISO lines Pin 31 is for DIO type boards Pin 37 is for MIO type boards Jumper W4 selects the pin Indicates active low All other pins are not connected Digital 1 0 Signal Connections When you configure the SCXI 1161 for an MIO type board the digital T O signals of the SCXI 1161 match the digital I O lines of the MIO type board When you use the SCXI 1161 with an SCXI 1341 SCXI 1342 or SCXI 1344 cable assembly the SCXI 1161 signals match the digital lines of the Lab NB Lab PC Lab PC boards the PC LPM 16 PnP
33. ire To do so reduces the safety isolation between the high voltage and safety ground Clean devices and terminal blocks by brushing off light dust with a soft nonmetallic brush Remove other contaminants with deionized water and a stiff nonmetallic brush The unit must be completely dry and free from contaminants before returning to service Use this module only with a UL listed SCXI chassis 2 4 National Instruments Corporation Chapter 2 Configuration and Installation Jumper Use Use the jumpers as follows e Jumper W1 connects a pullup resistor to the SERDATOUT signal on the rear signal connector e Jumper W2 carries the SCXIbus MISO line after buffering to the SERDATOUT signal on the rear signal connector e Jumpers W3 W4 and W5 select whether the SCXI 1161 is to be connected to a DIO type board or to an MIO type board DIO type boards are National Instruments boards that have only digital inputs and outputs These boards include the DIO 24 DIO 32F and DIO 96 MIO type boards are National Instruments boards that have at least analog and digital inputs and digital outputs These boards consist of MIO 16 boards Lab NB Lab PC Lab PC and Lab LC boards and PC LPM 16 PnP boards If nothing is cabled to the rear signal connector of the SCXI 1161 the positions of these jumpers is irrelevant Further configuration of the board is software controlled and is described later in this chapter Jumper Configuration All
34. itoring The SCXI 1161 operates with full functionality with National Instruments MIO boards Lab NB Lab PC Lab PC Lab LC and PC LPM 16 PnP boards and with the DIO 24 DIO 32F and DIO 96 boards You can control several SCXI 1161s in a single chassis with one data acquisition board and in combination with other SCXI module types The SCXI 1161 has on board screw terminals for easy signal attachment What You Need to Get Started To set up and use your SCXI 1161 you will need the following items Q SCXI 1161 module Q SCXI 1161 User Manual National Instruments Corporation 1 1 SCXI 1161 User Manual Chapter 1 Introduction Software Programming Choices There are several options to choose from when programming your National Instruments DAQ or SCXI hardware You can use LabVIEW LabWindows CVI ComponentWorks VirtualBench NI DAQ or register level programming National Instruments Application Software SCXI 1161 User Manual LabVIEW features interactive graphics a state of the art user interface and a powerful graphical programming language The LabVIEW Data Acquisition Virtual Instrument 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 progra
35. l descriptions table 3 6 to 3 7 screw terminal connections 3 1 SLOTOSEL signal description table 3 7 SCXIbus to SCXI 1 161 pin equivalencies table 3 8 software programming choices 1 2 to 1 4 National Instruments application software 1 2 NI DAQ driver software 1 3 to 1 4 register level programming 1 4 specifications channel rating A 1 to A 2 operating environment A 2 physical A 2 storage environment A 2 SPICLK signal SCXIbus to SCXI 1161 pin equivalencies table 3 8 storage environment specifications A 2 T technical support C 1 to C 2 telephone and fax numbers C 2 theory of operation 4 1 to 4 5 digital control circuitry 4 4 digital interface circuitry 4 3 to 4 4 SCXI 1161 User Manual Index functional overview 4 1 to 4 3 relay channels 4 5 SCXI 1161 block diagram 4 2 V VirtualBench software 1 2 SCXI 1161 User Manual I4 National Instruments Corporation
36. mming 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 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 VirtualBench features VIs that combine DAQ products software and your computer to create a stand alone instrument with the added benefit of the processing display and storage capabilities of your computer VirtualBench instruments load and save waveform data to disk in the same forms that can be used in popular spreadsheet programs and word processors Using LabVIEW LabWindows CVI ComponentWorks or VirtualBench software will greatly reduce the development time for your data acquisition and control application 1 2 National Instruments Corporation Chapter 1 Introduction 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 SCXI or accessory products except for the SCXI 12
37. n about DAQ hardware that plugs into or is connected to your computer Use these manuals for hardware installation and configuration instructions specification information about your DAQ hardware and application hints e Software documentation Examples of software documentation you may have are the LabVIEW and LabWindows CVI documentation sets and the NI DAQ documentation After you set up your hardware system use either the application software LabVIEW or LabWindows CVI or the NI DAQ documentation to help you write your application If you have a large complicated O National Instruments Corporation Xi SCXI 1161 User Manual About This Manual system it is worthwhile to look through the software documentation before you configure your hardware e Accessory installation guides or manuals If you are using accessory products read the terminal block and cable assembly installation guides or accessory board user manuals They explain how to physically connect the relevant pieces of the system Consult these guides when you are making your connections e SCXI Chassis User Manual Read this manual for maintenance information on the chassis and for installation instructions Related Documentation The following National Instruments manual contains detailed information for the register level programmer e SCXI Register Level Programmer Manual This manual is available from National Instruments by request Using NI DAQ LabVi
38. n onto MISO during the first four bytes of transfer after you select the module Zeros are written to MISO thereafter until you deselect the module The SCXI 1161 module ID is hex E 4 4 O National Instruments Corporation Chapter 4 Theory of Operation Relay Channels The SCXI 1161 has eight independent one form C single pole double throw relays Each relay has three connections at the front screw terminals the common COM the normally closed NC and the normally open NO positions Each relay has pads for arc suppressors to protect the relays from inductive loads Refer to the Contact Protection for Inductive Load Connections section of Chapter 3 Signal Connections for further details on contact protection All eight relays are single side stable relays When you energize the relay coil the COM connects to the NO position The Data Register controls the relays as follows The four LSBs of the least significant byte of the Data Register control the coils of relays 0 through 3 The four LSBs of the most significant byte of the Data Register control the coils of relays 4 through 7 When you do not energize the coils the COM connects to the NC position After a write to the Data Register the data is latched and the selected relay coils are continuously driven Each relay can be set the relay COM position connected to the NO position or reset the relay COM position connected to the NC position without affecting the other rel
39. nd configuration of the jumper settings SCXI 1161 User Manual 2 6 O National Instruments Corporation Chapter 2 Configuration and Installation Table 2 1 Configuration of Jumpers W1 and W2 Jumper Description Configuration WI Parking position 3 2 1 WI Factory setting Connects pullup to SERDATOUT 3 1 W2 Parking position 3 2 1 W2 Factory setting Connects MISO to SERDATOUT 3 1 O National Instruments Corporation 2 7 SCXI 1161 User Manual Chapter 2 Configuration and Installation Table 2 2 Configuration of Jumpers W3 W4 and W5 for DIO Type and MIO Type Boards Jumper Configuration for DIO Type Configuration for Board Factory Setting MIO Type Board W3 MIO MIO W3 DIO W3 DIO WA MIO MIO WA DIO WA DIO WS MIO MIO W5 DIO W5 DIO Jumpers W3 W4 and W5 You can use two types of data acquisition boards with the SCXI 1161 User Manual SCXI 1161 DIO type boards and MIO type boards All three jumpers have labels indicating the DIO and the MIO configurations If you want to use the SCXI 1161 with a DIO type board place all three jumpers in the DIO position the factory setting If you want to use the SCXI 1161 with an MIO type board place all three jumpers in the MIO position If nothing is cabled to the SCXI 1161 rear signal connector the positions of these jumpers are irrelevant 2 8 National Instruments Corporation Chapter
40. nual Chapter 4 Theory of Operation Arc Suppressor Relays 0 Pads through 7 NC 0 Q COM 0 Module ID Register NO 0 NC 1 e e Data e Register COM 1 Q e N Y NO 1 O Rear P M4 Signal Connector e e Digital e Interface NC 6 COM 6 io OG o eee ak NO 6 SCXIbus Connector NC 7 COM 7 NO 7 Q Q 9 A al t Figure 4 1 SCXI 1161 Block Diagram SCXI 1161 User Manual 4 2 National Instruments Corporation Chapter 4 Theory of Operation The major components of the SCXI 1161 are as follows e The digital interface e The digital control circuitry e The relay channels The SCXI 1161 module is dedicated to switching and controlling power signal sources The theory of operation of each of the SCXI 1161 components is explained in the rest of this chapter Digital Interface Buffered Serial Data Buffered Digital Signal Controls Figure 4 2 shows a diagram of the SCXI 1161 and SCXIbus digital interface circuitry SCXIbus e q SERDATIN 8 DAQD A 5 l O Digital Interface Le SLOTOSEL S D SERCLK Re een Le P oO ao SERDATOUT A Figure 4 2 Digital Interfa
41. on Chapter 3 Signal Connections Table 3 2 Arc Suppressor Placement COM to NG COM to NC Transient Voltage Suppressor Channel Number Reference Designator 0 VR2 1 VR4 2 VR6 3 VR8 4 VR10 3 VR12 6 VR14 7 VR16 Figure 3 2 shows how to connect a transient voltage suppressor for AC and DC inductive loads ee NC J VR2 Relay 2 3 COM i gt i OM e ip Arc Suppressor Pads brasse 1 NO Figure 3 2 Arc Suppressor Pad Locations National Instruments Corporation 3 3 SCXI 1161 User Manual Chapter 3 Signal Connections Signal Connection To connect the signal to the screw terminals use the following procedure 1 Remove the grounding screw of the top cover 2 Snap out the top cover of the shield by placing a screwdriver in the groove at the bottom of the module 3 Install contact protection preferably across your load as described in the previous section if your load is inductive 4 Slide the signal wires one at a time through the front panel strain relief You can use additional insulation or padding if necessary 5 Connect the wires to the screw terminals 6 Tighten the strain relief by tightening the larger screws 7 Snap the top cover back in place 8 Replace the grounding screw to ensure proper shielding Rear Signal Connector IF Note SCXI 1161 User Manual If you will use the SCXI 1161 with a Nation
42. ons are used in this manual DIO board refers to the National Instruments AT DIO 32F MC DIO 24 MC DIO 32F NB DIO 24 NB DIO 32F NB DIO 96 PC DIO 24 and PC DIO 96 PnP digital I O data acquisition boards unless otherwise noted DIO type board refers to National Instruments data acquisition boards that have only digital inputs and outputs These boards include the DIO 24 DIO 32F and DIO 96 boards unless otherwise noted Italic text denotes emphasis a cross reference or an introduction to a key concept Lab board refers to the National Instruments Lab LC Lab NB Lab PC and Lab PC boards unless otherwise noted MC refers to the Micro Channel series computers MIO board refers to the National Instruments AT MIO 16 AT MIO 16D AT MIO 16F 5 AT MIO 16X AT MIO 64F 5 MC MIO 16 NB MIO 16 and NB MIO 16X multichannel I O data acquisition boards unless otherwise noted MIO type board refers to National Instruments data acquisition boards that have at least analog and digital inputs and outputs These boards include the MIO boards the Lab boards and the PC LPM 16 PnP board unless otherwise noted Lowercase text in this font denotes text or characters that are to be literally input from the keyboard sections of code programming examples and syntax examples This font is also used for the proper names of disk drives paths directories programs subprograms X National Instruments Corporation NB PC SCXIbus Slot 0
43. r 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 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 suspec
44. rol 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 ComponentWorks CVI NI VISA NI VXI SCXITM 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 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 intend
45. se 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 SCXI chassis e Never touch the exposed pins of the connectors SCXI 1161 User Manual 1 6 O National Instruments Corporation Chapter Configuration and Installation This chapter describes the SCXI 1161 jumper configurations installation of the SCXI 1161 into the SCXI chassis signal connections to the SCXI 1161 and cable wiring Module Configuration The SCXI 1161 includes five jumpers shown in Figure 2 1 National Instruments Corporation 2 1 SCXI 1161 User Manual Chapter 2 Configuration and Installation Thumbscrew o ZE SEN ol x Gocoucocconccocouccoco0uo 20202A Fe 2000000000000000000000000 opoopo Co0000000000 lt UI 9 ENES EE EE 9 oc i T o D o Ge e D 2 2 gcc X c S E ooo 5 OG o 5 roo DO z 9 a FO E EE 2 o2 9 KE lt le v e 78 l des zd z Al alo eH 2 Mee 8 D N o a CH N S Soon ke as U 9 st CI ess a
46. t on the documentation supplied with our products This information helps us provide quality products to meet your needs Title SCXI 1161 User Manual Edition Date May 1997 Part Number 320514B 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 __ Fax ___ Mail to Technical Publications National Instruments Corporation 6504 Bridge Point Parkway Austin TX 78730 5039 Fax to Technical Publications National Instruments Corporation 512 794 5678 Glossary Prefix Meaning Value p pico 10 n nano 10 u micro 105 m milli 103 k kilo 103 M mega 106 Numbers Symbols 2 degrees Q ohms 5 V signal A A AC A D AWG 5 VDC Source amperes alternating current analog to digital American Wire Gauge National Instruments Corporation G 1 SCXI 1161 User Manual Glossary C C CHS CHSGND COM cpm D D A D A DAQD A DC DIG GND DIO FIFO ft hex HSCR SCXI 1161 User Manual Celsius Chassis Chassis Ground common cycles per minute digital to analog Data Address Data Acquisition Board Data Address Line direct current Digital Ground digital
47. ted 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 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 cont
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