DAQmx module Error -200227

[niNickC]

So I was playing around withe the provided DAQmx module and kept getting error -200227.

I tracked it down to runtim.lvclass:Configure AI Task.vi

The offset is set to '-1'. Setting it to '0' fixes the problem.

I don't quite know how this could be missed...?

[BeCeGa]

Hi Nick, that change was made in this pull request:

https://github.com/LabVIEW-DCAF/DAQModule/pull/57

And was aiming to solve this issue: https://github.com/LabVIEW-DCAF/DAQModule/issues/53, the issue is still open but we haven't fix it yet. 

What hardware are you using?

[niNickC]

Ah I see.

This is on a 9133 RT cDAQ.

Hmm.

Rather than a for loop as suggested by agomez08, could just add a wait between the start and setting that property?

[niNickC]

I attempted a wait with no success. I don't think this is the problem anyway as read will report -200277 on every iteration. No amount of waiting will let DAQmx read without error. Its more like for this device an offset of '-1' is simply not supported.

A keep it simple solution might be to just read all available samples and only use the latest one:

[BeCeGa]

That looks like a good approach, we just need to check that we don't get the delay or the error when doing that.