Trigger using DAQ 6015

[dave.sch]

Hello everyone,

I'm relativley new to LabView and am not entirely sure if I'm using it correctly.

I want to use the NI-DAQ 6015's digital output as a triggering source for another device. However what I thought would be the right way only returns error 200452 which I don't qute understand.

I attached pictures of the labview routine (parts in the ovals were added by me) and the error message.

I would appreciate any help by you.

Kind Regards

David

[mikeporter]

The basic issue is that all hardware devices don't support all functionality.

Mike...

[dave.sch]

Hey Mike,

Thanks for your response! I know that not all hardware can support all functionality, but isn't the entire trigger sequence I used software based? All the parts outside the oval work and am I not using the same sequence there as well?

David

[dave.sch]

What I mean is, there must be a way to synchronize the digital output and the analog output on the same device? Or is that assumption wrong?

[GerdW]

Hi Dave,

as said in the German LabVIEWForum: Please mark your messages as Crosslink (atleast for the German reading audience)!

There already was some discussion about your problems and you should make the people in this forum aware of the full story…

[Christoph_D]

Hi David,

no the trigger sequence is HW-based, since the trigger normally a piece of hardware set to start your task on a certain condition. It is configured from SW, but done from HW.

"Triggering" by SW would involve a fast polling of the signal, a SW analysis and a SW based start of the task. That would be non-deterministic and would take many ms, instead of a few ns/us.

Sorry that your HW doesnt support that.

Best regards

Christoph