NI 6251.docx
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NI 6251.docx
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NI6251
ThefollowingsectionscontaininformationabouttheNIPCI/PCIe/PXI/PXIe-6251,USB-6251ScrewTerminal,
USB-6251BNC,andUSB-6251MassTerminationdevices.NIPCI/PCIe/PXI/PXIe-6251NIPCI/PCIe/PXI/PXIe-6251PinoutFigureA-28showsthepinoutoftheNIPCI/PCIe/PXI/PXIe-6251.Foradetaileddescriptionofeachsignal,refertotheI/OConnectorSignalDescriptionssectionofChapter3,ConnectorandLEDInformation.NoteMSeriesdevicesmaybeusedwithmostESeriesaccessories.However,someESeriesaccessoriesusedifferentterminalnames.RefertotheMSeriesandESeries
PinoutComparisonsectionofChapter3,ConnectorandLEDInformation,formoreinformation.
Counter/TimerSignal计数器/定时器信号DefaultPinNumber(Name)默认的PIN号码(名字)
*:
NoteFormoreinformationaboutdefaultNI-DAQmxcounterinputs,refertoConnectingCounterSignalsintheNI-DAQmxHelportheLabVIEWHelpinversion8.0orlater.
有关默认NI-DAQmx计数器输入更多的信息,请注意,是指连接在NI-DAQmx帮助或在8或更高版本的LabVIEW帮助计数器信号。
NIPCI/PCIe/PXI/PXIe-6251Specifications
NIPCI或PCIe模块功能说明
RefertotheNI625xSpecificationsformoredetailedinformationaboutthe
指酒店在Ni基625x更多详细的信息关于我们
NIPCI/PCIe/PXI/PXIe-6251device.
基于PXI总线的PCI /镍/镍/ PCIe设备的功能。
NIPCI/PCIe/PXI/PXIe-6251AccessoryandCablingOptions
基于PXI总线的PCI/ PCIe /镍/镍和cabling附件功能期权
Thissectiondescribessomecableandaccessoryoptionsfor
本节描述了一些电缆和附件选项
MSeriesdeviceswithone68-pinconnector,suchasthe
M系列设备有一个68针连接器,如
NIPCI/PCIe/PXI/PXIe-6251.Refertoforotheraccessory
镍/镍/PCI或PCIe模块功能。
问题其他配件
SCXIAccessories
SCXIisaprogrammablesignalconditioningsystemdesignedformeasurementandautomationapplications.ToconnectyourMSeriesdevicetoanSCXIchassis,usetheSCXI-1349adapterandanSHC68-68-EPMcable.YoualsocanuseanMSeriesdevicetocontroltheSCXIsectionofaPXI/SCXIcombinationchassis,suchasthePXI-1010orPXI-1011.The
MSeriesdeviceintherightmostPXIslotcontrolstheSCXIdevices.Nocablesoradaptersarenecessary.RefertotheSCXIAdvisor,availablebygoingtoandenteringtheinfocoderdscad,formoreinformation.
SCCAccessories
SCCprovidesportable,modularsignalconditioningtoyourDAQsystem.ToconnectyourMSeriesdevicetoanSCCmodulecarrier,suchastheSC-2345,SC-2350,orSCC-68,useanSHC68-68-EPMshieldedcable.NotePCIExpressusersshouldconsiderthepowerlimitsoncertainSCCmoduleswithoutanexternalpowersupply.RefertotheNI625xSpecifications,andthePCIExpressDeviceDiskDrivePowerConnectorsectionofChapter3,ConnectorandLEDInformation,forinformationaboutpowerlimitsandincreasingthecurrentthedevicecansupplyonthe+5Vterminal.RefertotheSCCAdvisor,availablebygoingtoandenteringtheinfocoderdscav,formoreinformation.
BNCAccessories
YoucanusetheSHC68-68-EPMshieldedcable,toconnectyourDAQdevicetoBNCaccessories,suchasthefollowing:
•BNC-2110—ProvidesBNCconnectivitytoallanalogsignals,somedigitalsignals,andspringterminalsforotherdigitalsignals
•BNC-2111—ProvidesBNCconnectivityto16single-endedanaloginputsignals,twoanalogoutputsignals,fiveDIO/PFIsignals,andtheexternalreferencevoltageforanalogoutput
•BNC-2120—SimilartotheBNC-2110,andalsohasabuilt-infunctiongenerator,quadratureencoder,temperaturereference,andthermocoupleconnector
•BNC-2090A—Desktop/rack-mountabledevicewith22BNCsforconnectinganalog,digital,andtimingsignals
ScrewTerminalAccessories
NationalInstrumentsoffersseveralstylesofscrewterminalconnectorblocks.UseanSHC68-68-EPMshieldedcabletoconnectanMSeriesdevicetoaconnectorblock,suchasthefollowing:
•CB-68LPandCB-68LPRunshieldedconnectorblocks•SCC-68I/Oconnectorblockwithscrewterminals,generalbreadboard
area,busterminals,andfourexpansionslotsforSCCsignalconditioningmodules
•SCB-68shieldedconnectorblockwithtemperaturesensor
•TBX-68DINrail-mountableconnectorblock
•TB-2706frontpanelmountedterminalblockforPXIMSeriesdevices
RTSICables
UseRTSIbuscablestoconnecttimingandsynchronizationsignalsamongPCI/PCIExpressdevices,suchasMSeries,ESeries,CAN,andothermeasurement,vision,andmotiondevices.SincePXIdevicesusePXIbackplanesignalsfortimingandsynchronization,nocablesarerequired.
Cables
Inmostapplications,youcanusethefollowingcables:
•SHC68-68-EPM1—High-performancecabledesignedspecificallyfor
MSeriesdevices.Ithasindividualbundlesseparatinganaloganddigitalsignals.Eachdifferentialanaloginputchannelisroutedonanindividuallyshieldedtwistedpairofwires.Analogoutputsarealsoindividuallyshielded
•SHC68-68—Lower-costshieldedcablewith34twistedpairsofwire
•RC68-68—Highly-flexibleunshieldedribboncable
CustomCablingandConnectivity
TheCA-1000isaconfigurableenclosurethatgivesuser-definedconnectivityandflexibilitythroughcustomizedpanelettes.VisitformoreinformationabouttheCA-1000.
USB-6251ScrewTerminalPinout
FigureA-29showsthepinoutoftheUSB-6251ScrewTerminal.Foradetaileddescriptionofeachsignal,refertotheI/OConnectorSignalDescriptionssectionofChapter3,ConnectorandLEDInformation.
NoteFormoreinformationaboutdefaultNI-DAQmxcounterinputs,refertoConnectingCounterSignalsintheNI-DAQmxHelportheLabVIEWHelpinversion8.0orlater.
USB-6251ScrewTerminalSpecifications
RefertotheNI625xSpecificationsformoredetailedinformationabouttheUSB-6251ScrewTerminaldevice.
USB-6251ScrewTerminalLEDPatterns
RefertotheLEDPatternssectionofChapter3,ConnectorandLEDInformation,forinformationabouttheUSB-6251ScrewTerminalLEDs.
USB-6251ScrewTerminalFuseReplacement
RefertotheUSBDeviceFuseReplacementsectionofChapter3,ConnectorandLEDInformation,forinformationaboutreplacingthefuseontheUSB-6251ScrewTerminal.
USB-6251BNCPinout
FigureA-30showsthepinoutoftheUSB-6251BNC.Foradetaileddescriptionofeachsignal,refertotheI/OConnectorSignal
DescriptionssectionofChapter3,ConnectorandLEDInformation.
Tomeasureafloatingsignalsource,movetheswitchtotheFSposition.Tomeasureaground-referencedsignalsource,movetheswitchtotheGSposition.FigureA-31showstheAI0BNCandcorrespondingFS/GSswitchonthetoppaneloftheUSB-6251BNC.
FigureA-32showstheanaloginputcircuitryontheUSB-6251BNC.WhentheswitchissettotheFSposition,AIx–isgroundedthrougha0.1⎧Fcapacitorinparallelwitha5k∧resistor.
Single-EndedMode—ForeachBNCconnectorthatyouusefortwosingle-endedchannels,setthesourcetypeswitchtotheGSposition.Thissettingdisconnectsthebuilt-ingroundreferenceresistorfromthenegativeterminaloftheBNCconnector,allowingtheconnectortobeusedasasingle-endedchannel,asshowninFigureA-33.
WhenyousetthesourcetypetotheGSpositionandconfigurethedeviceforsingle-endedinputinsoftware,eachBNCconnectorprovidesaccesstotwosingle-endedchannels,AIxandAIx+8.Forexample,theBNCconnectorlabeledAI0providesaccesstosingle-endedchannelsAI0andAI8,theBNCconnectorlabeledAI1providesaccesstosingle-endedchannelsAI1andAI9,andsoon.Upto16single-endedchannelsareavailableinsingle-endedmeasurementmodes.
Forinformationonhowtoconnectyoursignalsinsingle-endedmode,AIGND,and/orAISENSE,refertotheConnectingAnalogInputSignalssectionofChapter4,AnalogInput.Foradetaileddescriptionofeachsignal,refertotheI/OConnectorSignalDescriptionssectionofChapter3,ConnectorandLEDInformation.
AnalogOutput
YoucanaccessanalogoutputsignalsontheBNCconnectorslabeledAO0andAO1.FigureA-34showstheanalogoutputcircuitryontheUSB-6251
USER1andUSER2
TheUSER1andUSER2BNCconnectorsallowyoutouseaBNCconnectorforadigitalortimingI/Osignalofyourchoice.TheUSER1andUSER2BNCconnectorsarerouted(internaltotheUSB-6251BNC)totheUSER1andUSER2screwterminals,asshowninFigureA-37.
FigureA-38showsanexampleofhowtousetheUSER1andUSER2BNCs.ToaccessthePFI8signalfromaBNC,connectUSER1onthescrewterminalblocktoPFI8withawire.
ThedesignatedspacebeloweachUSER<1..2>BNCisformarkingor
labelingsignalnames.
USB-6251BNCSpecifications
RefertotheNI625xSpecificationsformoredetailedinformationabouttheUSB-6251BNCdevice.
USB-6251BNCLEDPatterns
RefertotheLEDPatternssectionofChapter3,ConnectorandLEDInformation,forinformationabouttheUSB-6251BNCLEDs
USB-6251BNCFuseReplacement
RefertotheUSBDeviceFuseReplacementsectionofChapter3,ConnectorandLEDInformation,forinformationaboutreplacingthefuseontheUSB-6251BNC.
USB-6251MassTermination
USB-6251MassTerminationPinout
FigureA-39showsthepinoutoftheUSB-6251MassTerminationdevice.Foradetaileddescriptionofeachsignal,refertotheI/OConnectorSignalDescriptionssectionofChapter3,ConnectorandLEDInformation.
NoteMSeriesdevicesmaybeusedwithmostESeriesaccessories.However,someESeriesaccessoriesusedifferentterminalnames.RefertotheMSeriesandESeriesPinoutComparisonsectionofChapter3,ConnectorandLEDInformation,formoreinformation.
NoteFormoreinformationaboutdefaultNI-DAQmxcounterinputs,refertoConnectingCounterSignalsintheNI-DAQmxHelportheLabVIEWHelpinversion8.0orlater.
USB-6251MassTerminationSpecifications
RefertotheNI625xSpecificationsformoredetailedinformationabouttheUSB-6251MassTerminationdevice.
USB-6251MassTerminationAccessoryandCabling
Options
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