Why did Start Analog Edge stop working?

[jasonhill]

I have been using the Start Analog Edge DAQmx function to initiate my data read (similar to the Multi-Devices Synch-Analog Input-Finite Acq-Analog Start.vi example). It has worked fine for several days, but recently stopped working. I can see the signal at the hardware test panel, I can see the trigger signal on the waveform if I route around the start trigger function. I cannot actually get the function to recognize the start trigger.

Not sure what other sort of debugging I can do. Hopefully, someone has encountered this before and can clue me in to what I am missing.

=Jason Hill
New Product Engineer
Groth Corp.

[George M.]

Hi,

I have a couple questions for you to help narrow down the issue:

1) What device are you using?
2) What driver are you using?
3) What has changed in the setup (hardware and software) from when it was working to when it stopped working?
4) You are using a multiple device VI. Is that because you have multiple devices you are trying to trigger. Please explain in more detail what you are trying to do and how you are trying to do it.

You could use the ContACq&Graph Voltage-Int Clk-Analog Start.vi to do the same thing with just one board. This may be better suited for your needs. This example can be found in the LabVIEW example finder.

I hope this helps. Have a Great Day!

George