How to trigger PXIe-6363 Ai with PXI-4142

[HenkkaK]

Hi,

PXIe-1082

PXIe-6363

PXIe-4142

LabVIEW 2012 SP1

Hi,

I'm trying to trigger analog input measurements (PXIe-6363) with my SMU (PXIe-4142). The NI-DCPower API has a VI called Export Signal VI which I could use for exporting the trigger signal into a specific line when "Source Complete Event" happens on my SMU.

The problem is now that I'v tried several lines for transferring the signal for the PXIe-6363, but unfortunately I have got always an error from DAQmx. Have anybody tried same kind of synchronization before? What internal lines I must use to get this work? I'm just only generating one voltage point at time with the SMU (Single Point). After SMU has set the level it should send trigger for PXIe-6363 which would then measure external signals continuously.

Many Thanks in Advance!
-henkka

[HenkkaK · Accepted solution]

Hi,

I solved the issue by routing SMU's Measure Trigger with Export Signal.vi into PXIe-6363's PFI0 line (SMU's channel 3). Then I triggered all other SMU's channels (0:2) with this trigger signal by using Configure Digital Edge Measure Trigger.vi (the VI's input terminal is PFI0).

I configured the DAQ's sample clock to use the PFI0 as a clock source. With this method I am able to measure 2 kHz sine generated with four SMU channels individually with my DAQ without any phase shift (0.1 degrees) between SMU's own measurement and DAQ measurement.

Hope this helps someone with same kind of problem.

Best Regards,

-Henry