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How to control two USB 6501 simultaneously

Hi,

I am trying to measure two signal by using two counters of different NI USB-6501 device. The problem is that they measure one after another so I loose half of the time. Can anyone please help me so that I can simultaneously measure them. I have attached the sub vi which I used in the main vi to control both USB-6501.

 

Thank you

 

Best regards,

Somnath

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Make that subVI reentrant.  Then you can have multiple calls of it that will run simultaneously.


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