NI9219 Force and Resistance Simultaneous Acquisition

[LevonSynvue]

Hello everyone,

I have system where I am using NI 9171 populated with NI 9219.

I plan to acquire force (full bridge) sensor with channel 0, torque (full bridge) sensor with channel 1 and resistance (4 wire) with channel 2 and 3 simultaneously.

There are many examples for each function of the module. I have tried to configure each channel separately and it works fine. 

The module should be capable to read 4 channels simultaneously as there are an ADC per channel.

But I couldn't find any example  for simultaneous acquisition of few channels for different measurements (e.g. Force and resistance).

Does anyone tried to do so? Is it possible for 9219? If yes, could you share a simple example?

Thanks in advance.

[ZYOng · Accepted solution]

If you are using cDAQ or cRIO with NI-DAQmx, the easiest way is to use channel expansion. Simply include multiple DAQmx Create Virtual Channel instances into one DAQmx task.