PCI 6259 - Trigger AI voltage measurment when P0.31 changes from low to high

[kphite]

I am writing a pattern using the digital outputs (P0.8-P0.31) and want to trigger a voltage reading on AI16 when P0.31 changes from low to high. Any ideas on how to accomplish this?

[mikerophone]

Have you looked at an example in the LabVIEW example finder?  You can export a digital signal to a PFI line on the DAQ board.  For an analog input task, you can place a DAQmx Start Trigger VI and choose the source as the PFI line where the digital signal was exported to.

[John_P1 · Accepted solution]

Almost what Michael said...

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@michael_lewis23 wrote:

Have you looked at an example in the LabVIEW example finder?  You can export a digital signal connect your signal from p0.31 using a wire to a PFI line on the DAQ board.  For an analog input task, you can place a DAQmx Start Trigger VI and choose the use an external sample clock source as the PFI line where the digital signal was exported to.

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Best Regards,

[kphite]

Thanks John. That makes more sense. It's not the best solution (all the PFI lines are on the other connector) but I can make it work.

kph