Output Different Voltage on Each Analog Output Channel in DAQmx

Updated Mar 15, 2018

Reported In

Driver

  • NI-DAQmx

Issue Details

  • Can I output a different voltage on each analog output channel in one DAQmx task? 
  • The documentation for the number of concurrent DAQmx tasks on a CompactDAQ (cDAQ) chassis states that you can only have one analog output task per chassis. Does this mean I have to have a separate, software-time task for each different analog output voltage?

Solution

You can write different voltages to each analog output channel in the same DAQmx task. In a DAQmx task, you must ensure that each channel is the same frequency, number of samples, and type (e.g. all analog output). However, you do not have to write the same values to the analog output channel. 

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