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Multi Channel Data Acquisition using PXI-6143

 

Dear All

 

I want to multi-channel DAQ with analog triggering.

I could acquire one channel data, trigger to one channel data and acquire two channel data at the same time.

(http://forums.ni.com/t5/LabVIEW/Multi-Channel-Data-Acquisition-using-PXI-6143/td-p/2649239/page/2)

 

As the next step, I tried multi-channel DAQ with analog triggering by combining one-channel triggering VI and two-channel DAQ VI(as the attached).

Input Physical Channel is ai0:1 and I want to trigger data from ai0 by the value in "Trigger level0" and to trigger data from ai1 by the value in "Trigger level1".

But this code triggers two data by same level.

 

I think this code input the data of only one channel to analog triggering VI 

after the data of one channel is separated from the data output from DAQmx Read VI.

 

Why the triggering is at same level?

How can I do that?

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