Accessing Pretrigger (using LabVIEW)

[mihamm]

Hello all,

I would like to do some triggered measurements in VeriStand. At the same time i want to access the pretrigger data. Where can I find them and is it possible to access them (for example via a LabVIEW Simulation Model) and if so, how?
I can't find anything suitable on the internet.

Thanks in advance

[joshe]

To do pre-triggering recording you need to set it up using a Data Logging Specification Ref.  This will then go into your Start Data Logging Session VI.  To set up pre-triggering you can add a value to the Set Start Trigger VI.  I didn't use it in my example, but you can find it in the help.  I hope this helps you get started.

[mihamm]

Thank you very much for your reply.
If I have understood correctly, with the procedure suggested by you, I trigger the recording in VeriStand?

Also, I would like to capture the pretrigger data without triggering the trigger, this is not possible with your suggestion if I understand it correctly?
For my application I would have to set the pretrigger time to infinity or? And where can i read out the data then?