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About This Manual

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National Instruments Corporation

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SCXI-1104/C User Manual

•

Accessory installation guides or manuals—Consult these guides when
you are installing terminal blocks, cable assemblies, or other SCXI
accessories.

•

SCXI chassis manual—Read this manual to obtain chassis installation
instructions and maintenance information.

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Summary of Contents for SCXI-1104

Page 1: ...SCXI SCXI 1104 C User Manual 32 Channel Medium Voltage Input Module SCXI 1104 C User Manual February 2000 Edition Part Number 322147B 01...

Page 2: ...many 089 741 31 30 Greece 30 1 42 96 427 Hong Kong 2645 3186 India 91805275406 Israel 03 6120092 Italy 02 413091 Japan 03 5472 2970 Korea 02 596 7456 Mexico D F 5 280 7625 Mexico Monterrey 8 357 7695...

Page 3: ...ures 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 powe...

Page 4: ...XI 1104 C Module into the SCXI Chassis 2 2 Connecting the SCXI 1104 C to a DAQ Device for Multiplexed Scanning in an SCXI Chassis 2 3 Connecting the SCXI 1104 C to a DAQ Device for Multiplexed Scannin...

Page 5: ...ng 4 2 LabVIEW and the SCXI Channel String 4 2 LabVIEW and the Virtual Channel String 4 3 Multiplexed Scanning 4 4 C and Low Level DAQ Functions 4 4 Chapter 5 Theory of Operation Functional Overview 5...

Page 6: ...e 2 2 Connecting an SCXI Chassis to a DAQ Device 2 5 Figure 2 3 Removing the SCXI 1104 C 2 13 Figure 3 1 SCXI 1104 C Module Front Signal Connector Pin Assignments 3 2 Figure 3 2 SCXI 1104 C Module Rea...

Page 7: ...g conventions appear in this manual Angle brackets that contain numbers separated by an ellipsis represent a range of values associated with a bit or signal name for example DBIO 3 0 The symbol indica...

Page 8: ...cument describes how to quickly install and configure your SCXI module Getting Started with SCXI This is the first manual you should read It gives an overview of the SCXI system and contains the most...

Page 9: ...User Manual Accessory installation guides or manuals Consult these guides when you are installing terminal blocks cable assemblies or other SCXI accessories SCXI chassis manual Read this manual to obt...

Page 10: ...04 C has 32 differential analog input channels Each channel also has a divide by 10 attenuator stage before the amplifier You can multiplex the SCXI 1104 C inputs to a single module output that drives...

Page 11: ...vity devices SCXI 1300 BNC 2095 TBX 96 SCXI 1310 One of the following software packages and its documentation ComponentWorks LabVIEW for Macintosh LabVIEW for Windows LabWindows CVI for Windows Measur...

Page 12: ...or loose components or any other sign of damage Notify National Instruments if the module appears damaged in any way Do not install a damaged module into your SCXI chassis Never touch the exposed pins...

Page 13: ...ing instructions describe the order for installing the software for your SCXI 1104 C 1 Install your ADE if you have not already done so National Instruments ADEs have release notes containing software...

Page 14: ...C module into the SCXI chassis follow these steps while referring to Figure 2 1 1 Turn off the computer that contains the DAQ device or disconnect it from your SCXI chassis 2 Turn off the SCXI chassi...

Page 15: ...annels of the SCXI 1104 C into a single channel of your DAQ device You need the following items for this installation SCXI chassis with the SCXI modules installed SCXI cable assembly which consists of...

Page 16: ...g steps while referring to Figure 2 2 1 Turn off the SCXI chassis and the computer that contains the DAQ device 2 Insert the cable adapter into the back of the SCXI chassis aligned with the module tha...

Page 17: ...your DAQ device in a combination PXI chassis You need the following items for this installation PXI combination chassis with the SCXI modules installed National Instruments PXI MIO DAQ device installe...

Page 18: ...configuration process open the Measurement Automation Help file by selecting Help Topics from the Help menu Follow these steps to configure your SCXI system 1 Double click the Measurement Automation E...

Page 19: ...e Before auto detecting modules do the four steps of the Configuration and Self Test section To auto detect your SCXI module s follow these steps 1 Make sure the chassis power is turned on 2 Select Ye...

Page 20: ...Configure your module as follows a If the selected module is connected to a National Instruments DAQ device select that device by using the Connected to control If it is not select none If you want th...

Page 21: ...d select Properties Click on the General tab a If the module you are configuring is connected to a National Instruments DAQ device select that device by using the Connected to control If you want this...

Page 22: ...hooting Self Test Verification If the preceding test did not verify your chassis configuration take the following steps to successfully complete system configuration 1 If you get the warning message U...

Page 23: ...orrect slot turn off the chassis remove the module as specified in Removing the SCXI 1104 C from an SCXI Chassis and verify that no connector pins are bent on the rear signal connector Reinstall the m...

Page 24: ...e appropriate section that follows and in the associated terminal block installation guide before adding or removing any signals from the SCXI module or terminal block 2 Remove all signals from the te...

Page 25: ...ed devices and interfaces by clicking the next to the Devices and Interfaces icon 2 Locate the chassis in the list of installed devices Display the list of modules in the chassis by clicking the next...

Page 26: ...www ni com Note Deleting the SCXI chassis deletes all modules in the chassis All configuration information for these modules is also lost Your SCXI chassis and or SCXI module s should now be removed...

Page 27: ...age to the electrical components in the module use antistatic techniques whenever removing a module from the chassis or whenever touching a module The following accessories are available to connect si...

Page 28: ...3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 A CH31 CH30 CH29 CH28 CH27 CH26 CH25 CH24 CH23 CH22 CH21 CH20 CH19 CH18 CH17 CH16 CH15 CH14 CH13 CH12 CH11 CH10 CH9 C...

Page 29: ...tive channel input terminal is the maximum input voltage that results in a valid measurement Subject to the limits stated above you can connect either floating or ground referenced signal sources to t...

Page 30: ...slot cable extender with the SCXI 1104 C module read this section Figure 3 2 shows the SCXI 1104 C module rear signal connector pin assignments Figure 3 2 SCXI 1104 C Module Rear Signal Connector Pin...

Page 31: ...gital Ground These pins supply the reference for DAQ device digital signals and are tied to the module digital ground 25 SERDATIN Input Serial Data In The DAQ device uses this signal to program module...

Page 32: ...I 1104 C module National Instruments is not liable for any damage resulting from such signal connections Note The SCXI 1104 C module analog outputs are short circuit protected Digital I O Signal Conne...

Page 33: ...mbly If the module you are scanning is not directly cabled to the DAQ device the module routes its output signal through the SCXIbus to the cabled module The cabled module whose internal routing is co...

Page 34: ...Automation Explorer A discussion describing how to implement multiplexed scanning in the different ADEs follows See your ADE manual and the DAQ analog input examples that come with your application s...

Page 35: ...SCXI 1104 C these virtual channels are analog input channels you create that have custom names called tags in BridgeVIEW and perform scaling and linearization transparently without additional programm...

Page 36: ...C This is not a comprehensive discussion of SCXI scanning using LabVIEW BridgeVIEW Measure or ComponentWorks but should give you enough information to help you get started with the examples that are s...

Page 37: ...acquire the channel data with the DAQ device If you are using a multifunction DAQ device you can use SCAN_OP to perform the scanning operation After scanning convert the binary data to voltage data u...

Page 38: ...agram in Figure 5 1 illustrates the key functional components of the SCXI 1104 C module Figure 5 1 SCXI 1104 C Module Block Diagram Front Signal Connector CH 0 CH 0 CH 31 CH 31 Lowpass Filter Digital...

Page 39: ...al section for automatic control of channel scanning Rear Signal Connector SCXIbus Connector and SCXIbus Interface The SCXIbus controls the SCXI 1104 C module The SCXIbus interface connects the rear s...

Page 40: ...er For measurement accuracy of 0 012 of full scale the minimum scan interval is 3 s This is the smallest interval in which you can switch between analog channels on the module and still measure voltag...

Page 41: ...you operate the module outside of the 20 30 C temperature range To calibrate the SCXI 1104 C module you need to apply precision voltages to the channel inputs and or ground the channel inputs Calibrat...

Page 42: ...tive full scale and 42 V positive full scale as your two input voltages If you are only concerned with offset error short the input terminals and perform a one point calibration on the channel using t...

Page 43: ...nits as given by the following formula For other DAQ devices refer to your DAQ device user manual to determine the appropriate formula 6 You now have a new set of pairs referred to as voltage binary p...

Page 44: ...al ranges 30 VACrms 42 VACpeak 60 VDC Max working voltage signal common mode Each input should remain within 42 VACpeak 60 VDC of CGND Input damage level 42 VACpeak or 60 VDC Inputs protected CH 0 31...

Page 45: ...XI 1104 2 Hz SCXI 1104C 10 kHz Minimum sample interval 0 012 accuracy 3 s 0 0061 accuracy 10 s System noise referenced to input 500 Vrms Digital Signals Absolute max voltage input rating 5 5 V with re...

Page 46: ...ficient 50 V C Gain temperature coefficient 20 ppm C Note The offset and gain temperature coefficients apply outside the range of 35 C and 15 C Physical Dimensions 11 5 by 27 3 cm 4 54 by 10 75 in I O...

Page 47: ...Appendix A Specifications SCXI 1104 C User Manual A 4 www ni com Power Requirements 5 V supply 15 mA max 15 V supply regulated from 24 V supply 150 mA max...

Page 48: ...ared amplifier and filter architecture All 32 differential input channels are multiplexed to a single output channel and then routed to the DAQ device either directly or through the SCXIbus Both modul...

Page 49: ...chance that something is not operating correctly in your system or the combination of the components in your system is not operating correctly together You may have to call or e mail a technical suppo...

Page 50: ...try of the module No All channels share the same gain and cutoff frequency and you cannot modify them Some SCXI modules such as the SCXI 1112 and SCXI 1125 permit random scanning Does the SCXI 1104 C...

Page 51: ...e the SCXI 1300 front mounted terminal block BNC 2095 rack mounted BNC connector accessory TBX 96 DIN rail terminal block or the SCXI 1310 connector and shell kit I cannot find an installation guide f...

Page 52: ...s FAQs and their corresponding answers or solutions including special sections devoted to our newest products The database is updated daily in response to new customer experiences and feedback Trouble...

Page 53: ...ormation on local services You can access these Web sites from www ni com worldwide If you have trouble connecting to our Web site please contact your local National Instruments office or the source f...

Page 54: ...lli 10 3 k kilo 103 M mega 106 G giga 109 Numbers Symbols 5 V 5 volt signal degrees ohms percent plus or minus A A amperes AC alternating current ACH analog input channel signal A D analog to digital...

Page 55: ...ically a bus is the expansion vehicle to which I O or other devices are connected Examples of PC buses are the ISA bus and PCI bus C C Celsius CGND chassis ground potential CH channel channel pin or w...

Page 56: ...xpressing a logarithmic measure of the ratio of two signal levels dB 20log10 V1 V2 for signals in volts DC direct current device a plug in data acquisition board module card or pad that can contain mu...

Page 57: ...data accumulates in the FIFO for future retrieval With a larger FIFO longer latencies can be tolerated In the case of analog output a FIFO permits faster update rates because the waveform data can be...

Page 58: ...MIO device refers to the multifunction I O DAQ devices that have MIO or 60XX in their names MSB most significant bit mux multiplexer N NC not connected signal NI DAQ the driver software needed in ord...

Page 59: ...quality of a lowpass filter In general the more poles a lowpass filter has the better it attenuates frequencies beyond the cutoff frequency R RMA Return Material Authorization rms root mean square th...

Page 60: ...eferred to as the SCXIbus signal name line or signal The SCXIbus descriptor may be omitted when the meaning is clear Descriptions of many SCXIbus signals are in Chapter 3 Signal Connections SERCLK ser...

Page 61: ...m VIH volts input high VIL volts input low Vin volts in VOH volts output high VOL volts output low W working voltage the highest voltage that should be applied to a product in normal use normally well...

Page 62: ...tual channel string 4 3 to 4 4 Channel Register 5 3 channels onboard questions about B 2 common questions B 1 to B 4 configuration 2 6 to 2 11 auto detecting modules 2 7 configuration reconfiguration...

Page 63: ...04 C 2 11 to 2 14 from Measurement Automation Explorer 2 13 to 2 14 from SCXI chassis 2 11 to 2 13 into SCXI chassis 2 2 to 2 3 software installation 2 1 unpacking SCXI 1104 C 1 3 L LabVIEW SCXI chann...

Page 64: ...1104 C module rear signal connector to DAQ device pin equivalencies table 3 6 signal descriptions table 3 5 registers in digital control circuitry 5 2 to 5 3 removing SCXI 1104 C 2 11 to 2 14 from Me...

Page 65: ...electricity hazard caution 3 1 SLOT0SEL signal table 3 5 3 6 software installation 2 1 NI DAQ version required B 2 software related resources C 2 specifications amplifier characteristics A 2 digital s...

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