"exception ocurred". Vi stopped at node 0x4d8 of subVI "DAQmx write (Analog DBL 1Chan 1 samp)

[Esther.Lopez]

I get this message when running a VI that contains this subVI for a long time (2 hours). How can I solve and locate it?

[jasonv]

Are you using the auto-start feature of the DAQmx write VI ? If you wired "true" to the auto-start input or left it unwired, then the auto-start feature is being utilized. If you disable auto-start and explicitly start the task, does the problem persist?

[Esther.Lopez]

Thanks, the problem was solved just as you said...