DAQSCB-68 68-Pin ShieldedConnector Block User ManualSCB-68 Shielded Connector Block User ManualDecember 2002 EditionPart Number 320745B-01
About This ManualSCB-68 Shielded Connector Block User Manual xii ni.comNI DocumentationFor more information about using the SCB-68 with DAQ devices, r
IndexSCB-68 Shielded Connector Block User Manual I-4 ni.comselecting resistor, 5-17theory of operation, 5-16 to 5-17DDAC0OUT signalcomponent location
Index© National Instruments Corporation I-5 SCB-68 Shielded Connector Block User ManualIinput modes. See analog input signal connectionsinstallation68
IndexSCB-68 Shielded Connector Block User Manual I-6 ni.comnonreferenced or floating signal sourcesbias resistors, 3-7description, 3-3description (fig
Index© National Instruments Corporation I-7 SCB-68 Shielded Connector Block User Manualsafety information, 1-11 to 1-13specifications, A-1 to A-3SCB-6
IndexSCB-68 Shielded Connector Block User Manual I-8 ni.comspecial considerationsanalog input, 5-22 to 5-23analog output, 5-23digital inputs, 5-24theo
© National Instruments Corporation 1-1 SCB-68 Shielded Connector Block User Manual1IntroductionThe SCB-68 is a shielded I/O connector block with 68 sc
Chapter 1 IntroductionSCB-68 Shielded Connector Block User Manual 1-2 ni.com❑ The following items, if you are adding components (optional):– Soldering
Chapter 1 Introduction© National Instruments Corporation 1-3 SCB-68 Shielded Connector Block User ManualNI 6024E for PCMCIA(DAQCard-6024E),NI 6036E fo
Chapter 1 IntroductionSCB-68 Shielded Connector Block User Manual 1-4 ni.comS Series DevicesNI 6110/6111 for PCI SH68-68-EPSH68-68R1-EP,R6868Direct fe
Chapter 1 Introduction© National Instruments Corporation 1-5 SCB-68 Shielded Connector Block User Manual Figure 1-1. SCB-68 Parts Locator DiagramInst
Chapter 1 IntroductionSCB-68 Shielded Connector Block User Manual 1-6 ni.comFigure 1-2 shows how to use a 68-pin cable to connect the SCB-68 to a 68-p
Chapter 1 Introduction© National Instruments Corporation 1-7 SCB-68 Shielded Connector Block User Manual Figure 1-3. Connecting a 100-Pin DAQ Device
Chapter 1 IntroductionSCB-68 Shielded Connector Block User Manual 1-8 ni.com Figure 1-4. SCB-68 E Series I/O Connector Pinout (Full)FREQ_OUTGPCTR0_OU
Chapter 1 Introduction© National Instruments Corporation 1-9 SCB-68 Shielded Connector Block User ManualFigure 1-5 shows the pin assignments for the e
SupportWorldwide Technical Support and Product Informationni.comNational Instruments Corporate Headquarters11500 North Mopac Expressway Austin, Texas
Chapter 1 IntroductionSCB-68 Shielded Connector Block User Manual 1-10 ni.comFigure 1-6 shows the pin assignments for the extended digital connector.
Chapter 1 Introduction© National Instruments Corporation 1-11 SCB-68 Shielded Connector Block User ManualConfiguring the SCB-68For instructions about
Chapter 1 IntroductionSCB-68 Shielded Connector Block User Manual 1-12 ni.com• Pollution Degree 3 means that conductive pollution occurs, or dry, nonc
Chapter 1 Introduction© National Instruments Corporation 1-13 SCB-68 Shielded Connector Block User Manualinstallation, and equipment for industrial us
© National Instruments Corporation 2-1 SCB-68 Shielded Connector Block User Manual2Parts Locator and Wiring GuideThis chapter explains how to connect
Chapter 2 Parts Locator and Wiring GuideSCB-68 Shielded Connector Block User Manual 2-2 ni.comFigure 2-1. SCB-68 Printed Circuit Diagram1 Pads R20 an
Chapter 2 Parts Locator and Wiring Guide© National Instruments Corporation 2-3 SCB-68 Shielded Connector Block User ManualTo connect signals to the SC
Chapter 2 Parts Locator and Wiring GuideSCB-68 Shielded Connector Block User Manual 2-4 ni.comTable 2-1. Switch Configurations and Affected SignalsSw
Chapter 2 Parts Locator and Wiring Guide© National Instruments Corporation 2-5 SCB-68 Shielded Connector Block User Manual Single-ended temperature se
© National Instruments Corporation 3-1 SCB-68 Shielded Connector Block User Manual3Connecting SignalsThis chapter describes the types of signal source
Important InformationWarrantyThe SCB-68 is warranted against defects in materials and workmanship for a period of one year from the date of shipment,
Chapter 3 Connecting SignalsSCB-68 Shielded Connector Block User Manual 3-2 ni.com Figure 3-1. Summary of AI Connections+–+–+–V1ACHAISENSEAIGND+–+–V1
Chapter 3 Connecting Signals© National Instruments Corporation 3-3 SCB-68 Shielded Connector Block User ManualNonreferenced or Floating Signal Sources
Chapter 3 Connecting SignalsSCB-68 Shielded Connector Block User Manual 3-4 ni.comGround-Referenced Signal SourcesA grounded signal source is connecte
Chapter 3 Connecting Signals© National Instruments Corporation 3-5 SCB-68 Shielded Connector Block User ManualAnalog Input Channel Configuration Diagr
Chapter 3 Connecting SignalsSCB-68 Shielded Connector Block User Manual 3-6 ni.comDifferential Connections for Ground-Referenced Signal SourcesFigure
Chapter 3 Connecting Signals© National Instruments Corporation 3-7 SCB-68 Shielded Connector Block User ManualDifferential Connections for Nonreferenc
Chapter 3 Connecting SignalsSCB-68 Shielded Connector Block User Manual 3-8 ni.comCommon-mode rejection might be improved by using another bias resist
Chapter 3 Connecting Signals© National Instruments Corporation 3-9 SCB-68 Shielded Connector Block User ManualSingle-Ended Connections for Floating Si
Chapter 3 Connecting SignalsSCB-68 Shielded Connector Block User Manual 3-10 ni.comFigure 3-5 shows how to connect a grounded signal source to a chann
Chapter 3 Connecting Signals© National Instruments Corporation 3-11 SCB-68 Shielded Connector Block User ManualFigure 3-6 shows how to make AO connect
ComplianceFFCC/Canada Radio Frequency Interference ComplianceDetermining FCC ClassThe Federal Communications Commission (FCC) has rules to protect wi
Chapter 3 Connecting SignalsSCB-68 Shielded Connector Block User Manual 3-12 ni.com Figure 3-7. Digital I/O ConnectionsConnecting Timing SignalsIf yo
Chapter 3 Connecting Signals© National Instruments Corporation 3-13 SCB-68 Shielded Connector Block User ManualAll digital timing connections are refe
Chapter 3 Connecting SignalsSCB-68 Shielded Connector Block User Manual 3-14 ni.comACH+ and ACH– inputs are twisted together and then covered with a s
© National Instruments Corporation 4-1 SCB-68 Shielded Connector Block User Manual4Using ThermocouplesThis chapter describes how to take thermocouple
Chapter 4 Using ThermocouplesSCB-68 Shielded Connector Block User Manual 4-2 ni.comThe maximum voltage level thermocouples generate is typically only
Chapter 4 Using Thermocouples© National Instruments Corporation 4-3 SCB-68 Shielded Connector Block User Manual Figure 4-1. Single-Ended Switch Confi
© National Instruments Corporation 5-1 SCB-68 Shielded Connector Block User Manual5Adding Components for Special FunctionsThis chapter describes how t
Chapter 5 Adding Components for Special FunctionsSCB-68 Shielded Connector Block User Manual 5-2 ni.comYou can create virtual channels in MAX to map y
Chapter 5 Adding Components for Special Functions© National Instruments Corporation 5-3 SCB-68 Shielded Connector Block User ManualConditioning Analog
Chapter 5 Adding Components for Special FunctionsSCB-68 Shielded Connector Block User Manual 5-4 ni.com Figure 5-3. Analog Output Channel Configurati
Canadian Department of CommunicationsThis Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Chapter 5 Adding Components for Special Functions© National Instruments Corporation 5-5 SCB-68 Shielded Connector Block User ManualAccuracy and Resolu
Chapter 5 Adding Components for Special FunctionsSCB-68 Shielded Connector Block User Manual 5-6 ni.comDifferential Open Thermocouple Detection Use po
Chapter 5 Adding Components for Special Functions© National Instruments Corporation 5-7 SCB-68 Shielded Connector Block User ManualThermocouple wire e
Chapter 5 Adding Components for Special FunctionsSCB-68 Shielded Connector Block User Manual 5-8 ni.comFigure 5-6. Transfer Function Attenuation for
Chapter 5 Adding Components for Special Functions© National Instruments Corporation 5-9 SCB-68 Shielded Connector Block User Manualringing in the sign
Chapter 5 Adding Components for Special FunctionsSCB-68 Shielded Connector Block User Manual 5-10 ni.com Figure 5-10. Response of a Real Filter to a
Chapter 5 Adding Components for Special Functions© National Instruments Corporation 5-11 SCB-68 Shielded Connector Block User ManualUse Equation 5-3 t
Chapter 5 Adding Components for Special FunctionsSCB-68 Shielded Connector Block User Manual 5-12 ni.comFor any type of lowpass filter, use Equation 5
Chapter 5 Adding Components for Special Functions© National Instruments Corporation 5-13 SCB-68 Shielded Connector Block User ManualLowpass Filtering
Chapter 5 Adding Components for Special FunctionsSCB-68 Shielded Connector Block User Manual 5-14 ni.comTo prevent aliasing, remove all signal compone
© National Instruments Corporation vii SCB-68 Shielded Connector Block User ManualContentsAbout This ManualConventions ...
Chapter 5 Adding Components for Special Functions© National Instruments Corporation 5-15 SCB-68 Shielded Connector Block User Manual Figure 5-15. Low
Chapter 5 Adding Components for Special FunctionsSCB-68 Shielded Connector Block User Manual 5-16 ni.comApply a lowpass filter to the signal to remove
Chapter 5 Adding Components for Special Functions© National Instruments Corporation 5-17 SCB-68 Shielded Connector Block User ManualFigure 5-18. Curr
Chapter 5 Adding Components for Special FunctionsSCB-68 Shielded Connector Block User Manual 5-18 ni.comAdding ComponentsCaution Do not exceed ±10 V a
Chapter 5 Adding Components for Special Functions© National Instruments Corporation 5-19 SCB-68 Shielded Connector Block User Manual Figure 5-19. Att
Chapter 5 Adding Components for Special FunctionsSCB-68 Shielded Connector Block User Manual 5-20 ni.comSelecting ComponentsTo set up the resistors, c
Chapter 5 Adding Components for Special Functions© National Instruments Corporation 5-21 SCB-68 Shielded Connector Block User Manual Figure 5-20. SCB
Chapter 5 Adding Components for Special FunctionsSCB-68 Shielded Connector Block User Manual 5-22 ni.comAnalog Output and Digital Input AttenuatorsTo
Chapter 5 Adding Components for Special Functions© National Instruments Corporation 5-23 SCB-68 Shielded Connector Block User Manual Figure 5-23. Inp
Chapter 5 Adding Components for Special FunctionsSCB-68 Shielded Connector Block User Manual 5-24 ni.comSpecial Considerations for Digital InputsIf yo
ContentsSCB-68 Shielded Connector Block User Manual viii ni.comSingle-Ended Connection Considerations ...
© National Instruments Corporation A-1 SCB-68 Shielded Connector Block User ManualASpecificationsThis appendix lists the SCB-68 specifications. These
Chapter A SpecificationsSCB-68 Shielded Connector Block User Manual A-2 ni.comVoltage rating ...250 VNominal res
Chapter A Specifications© National Instruments Corporation A-3 SCB-68 Shielded Connector Block User ManualSafetyThe SCB-68 meets the requirements of t
© National Instruments Corporation B-1 SCB-68 Shielded Connector Block User ManualBQuick Reference LabelsThis appendix shows the pinouts that appear o
Chapter B Quick Reference LabelsSCB-68 Shielded Connector Block User Manual B-2 ni.com Figure B-1. E Series DevicesDAC1 OUTDAC0 OUTSCANCLKEXTREFAOGND
Chapter B Quick Reference Labels© National Instruments Corporation B-3 SCB-68 Shielded Connector Block User Manual Figure B-2. NI 670X DevicesS4* 68
Chapter B Quick Reference LabelsSCB-68 Shielded Connector Block User Manual B-4 ni.com Figure B-3. NI 671X/673X DevicesDAC1 OUTDAC0 OUTNCCEXTREFAOGND
Chapter B Quick Reference Labels© National Instruments Corporation B-5 SCB-68 Shielded Connector Block User Manual Figure B-4. S Series DevicesDAC1OU
Chapter B Quick Reference LabelsSCB-68 Shielded Connector Block User Manual B-6 ni.com Figure B-5. NI 660X DevicesS1S2S3S4SET SWITCHES ASFOLLOWS FORN
Chapter B Quick Reference Labels© National Instruments Corporation B-7 SCB-68 Shielded Connector Block User Manual Figure B-6. NI 653X DevicesS1S2S3S
Contents© National Instruments Corporation ix SCB-68 Shielded Connector Block User ManualSelecting a Resistor ...
Chapter B Quick Reference LabelsSCB-68 Shielded Connector Block User Manual B-8 ni.comFigure B-7. NI 7811R/7831R DevicesS1NC = No Connect1 THE MIO CO
© National Instruments Corporation C-1 SCB-68 Shielded Connector Block User ManualCFuse and PowerOne of the +5 V lines from the DAQ device (pin 8) is
© National Instruments Corporation D-1 SCB-68 Shielded Connector Block User ManualDSCB-68 Circuit DiagramsThis appendix contains illustrations of circ
Chapter D SCB-68 Circuit DiagramsSCB-68 Shielded Connector Block User Manual D-2 ni.com Figure D-2. Cold-Junction Compensation Circuitry Figure D-3.
Chapter D SCB-68 Circuit Diagrams© National Instruments Corporation D-3 SCB-68 Shielded Connector Block User Manual Figure D-4. Analog Output Circuit
© National Instruments Corporation E-1 SCB-68 Shielded Connector Block User ManualESoldering and Desoldering on the SCB-68Some applications discussed
Chapter E Soldering and Desoldering on the SCB-68SCB-68 Shielded Connector Block User Manual E-2 ni.com1. Disconnect the 68-pin cable from the SCB-68
© National Instruments Corporation F-1 SCB-68 Shielded Connector Block User ManualFTechnical Support and Professional ServicesVisit the following sect
Chapter F Technical Support and Professional ServicesSCB-68 Shielded Connector Block User Manual F-2 ni.com• Calibration Certificate—If your product s
© National Instruments Corporation G-1 SCB-68 Shielded Connector Block User ManualGlossaryPrefix Meanings Valuep- pico 10–12n- nano- 10–9µ-micro-10– 6
© National Instruments Corporation xi SCB-68 Shielded Connector Block User ManualAbout This ManualThis manual describes the SCB-68 and explains how to
GlossarySCB-68 Shielded Connector Block User Manual G-2 ni.comsquare root of+5V +5 VDC source signalAA amperesA/D analog-to-digitalAC alternating curr
Glossary© National Instruments Corporation G-3 SCB-68 Shielded Connector Block User Manualcm centimetercold-junction compensationCJC—an artificial ref
GlossarySCB-68 Shielded Connector Block User Manual G-4 ni.comEEXTREF external reference signalEXTSTROBE external strobe signalEXTTRIG external trigge
Glossary© National Instruments Corporation G-5 SCB-68 Shielded Connector Block User ManualII/O input/output—the transfer of data to/from a computer sy
GlossarySCB-68 Shielded Connector Block User Manual G-6 ni.comNyquist frequency a frequency that is half of the sampling frequencyOOUT output pin—a co
Glossary© National Instruments Corporation G-7 SCB-68 Shielded Connector Block User ManualPXI PCI eXtensions for Instrumentation—an open specification
GlossarySCB-68 Shielded Connector Block User Manual G-8 ni.comTthermocouple a temperature sensor created by joining two dissimilar metals; the junctio
© National Instruments Corporation I-1 SCB-68 Shielded Connector Block User ManualIndexNumbers+5 V signalfuse and power considerations, C-1power suppl
IndexSCB-68 Shielded Connector Block User Manual I-2 ni.comDAC0OUT configuration diagram (figure), 5-4input attenuators, 5-22, 5-23lowpass filter cons
Index© National Instruments Corporation I-3 SCB-68 Shielded Connector Block User Manualselecting components, 5-20accuracy considerations, 5-20special
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