Hi all, I am trying to read one sample per loop in LabView. I used the DAQ Assistant and USB-6009. However, I had a problem. In the "Acquisition Mode" after double-click on the DAQ Assistant, if I used N samples mode and set "Samples to read" to 1, this error occurred: Error -200077 occurred at DAQ AssistantPossible Reason(s):Requested value is not a supported value for this property. The property value may be invalid because it conflicts with another property.Property: SampQuant.SampPerChanRequested Value: 1Valid Values Begin with: 2Valid Values End with: 8589934590 And if I used the 1 sample (On demand), another error occurred when I started to run the program after successfully building vi: Possible reason(s):An attempt has been made to configure a trigger without configuring the appropriate sample clock properties or when Sample Timing Type was set to On Demand.Configure the sample clock type to something other than On Demand to use a trigger.Property: Start.TrigTypeCorresponding Value: Digital EdgeProperty: SampTimingTypeCorresponding Value: On DemandTask Name: _unnamedTask<2E06>

Sorry, wrong file. See the new one.

LabVIEW

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Thanks very much! I would learn how to use arrays in LabView. I would try what you said. Thanks

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