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NI PXIe-6341 Floating Increasing/Decreasing Voltage Reading

Hi,

 

I am having difficulty getting a proper voltage reading on my 6341 Analog inputs.  The inputs seem to show values that don't correspond with that I expect, and the DAQ also seems to force the external voltages low, even when the inputs are all set to tri-state.

 

When reading with the RSE configuration (because that is how our hardware is set up), I only see an increasing voltage that increases to a random asymptote.  On other configurations, the voltage may be decreasing, or stuck at a single level (that doesn't correspond with the measured value)

 

Are there any solutions I could try in this situation?


Thanks,
Billy Maier

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I am having a similar issue with a 6210. Voltage readings that shouldn't be and read values shifting towards an asymptote (-10.6V for me). I am also using RSE mode. Not helpful I know, but at least you are not alone.

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What sort of signal are you trying to measure? How is it physically connected? Do you see this in the MAX test panel? It sounds like a connection problem.
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