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Issues with output to second BNC

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I have a PCIe-6353, X Series DAQ (32 AI, 48 DIO, 4 AO). I have been using a BNC-2090A for two analogue outputs, but now I need 4 AOs, so I connected a second BNC-2090A. NI MAX shows the ports as available to output, but when I do output my motors do not move. I have tested this is not a motor issue by connecting them to two AOs in the first BNC. Is there a solution to this?

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Solution
Accepted by topic author ar138

You have two pieces of BNC-2090A, let us call them BNC-A and BNC-B to keep it simple

Try these to narrow down the root cause,

  • Connect Connector 0 -> BNC-A
    • Generate known voltages on AO0 and AO1 - let us say 1V and 2V
    • Check the voltages on the BNC connector using a multimeter
  • Connect Connector 0 -> BNC-B
    • Perform same steps as previous
  • Connect Connector 1 -> BNC-A
    • Generate known voltages on AO2 and AO3 - let us say 3V and 4V
    • Check the voltages on the BNC connector using a multimeter
  • Connect Connector 0 -> BNC-B
    • Perform same steps as previous

 

Now with these 4 combination of data, you'll be able to narrow down if the issue is with the 6353 card or your BNC accesory.

Santhosh
Soliton Technologies

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Thanks Santhosh! As I was doing as you suggested, everything was suspiciously working. After plugging in both BNCs again now everything works fine!

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