NI-Scope Use Express Assistant in parallel activity

[Simone Galigani]

Hello, I'm probabily a simple problem but I don't know to solve it,

someone can help me ??

I've to acquire with a NI Scope a signal produced by a DC supply that I've powered on in my VI.

I don't know how I can do these activities in parallel mode (first power on DC supply and then start the NI scope

acquisition with a VI express), because if I use the express VI for the scope acquisition i've time out error...

Is a tipical problem of I send a comand and only then I want to start scope acquisition...

Sorry for my english...

Thanks, Simone

[AlessioD]

Simone,

I guess you are not so familiar with the way LabVIEW works.

Using dataflow, you are able to specify the order of execution for VIs and SubVIs. In the attached picture, you can see how using the error cluster you define execution order for DC Start and then get into a While loop that reads from the scope continuously until the user presses the Stop button.

AlessioD