Is it possible to start a PCI4472 and a PCI-MIO-16E-1 simultaneously using an analog trigger (with pre-trigger)?

[Ian_Ren]

I would like to start several PCI 4472 and a PCI-MIO-16E-1 simultaneously. All boards are connected via a RTSI cable.

My program works fine if I use software trigger, or an analog trigger from a PCI4472 channel. However, the analog trigger works only when I set pre-trigger (or pre-scan) to 0.

Is it possible to start a PCI4472 and a PCI-MIO-16E-1 simultaneously using an analog trigger (with pre-trigger)?

Thanks.

Ian Ren

[Bill B]

Ian,

It is not possible to use the analog trigger with pre-trigger scans with PCI-4472. The analog input architecture of the 4472 is different than that of the E-series boards. You can acquire up to 38 pre-trigger scans if you use a digital trigger instead of an analog trigger. Please see this KnowledgeBase for more detailed information:

http://digital.ni.com/public.nsf/websearch/EA42429C0BF5510C86256DA9007876E3?OpenDocument

[Ian_Ren]

Hi, Bill

I think it is possible to set more than 38 pre-trigger scans on a single 4472 card. I've done this before. You can verify this by running the Labview example "Acquire N - Multi-Analog Hardware Trig.vi" which comes with LabView.

What I try to do but without success/luck so far is to start data acquisitions of several 4472 cards and a PCI-MIO-16E-1 card using an anlog trigger (with pre-trigger).

Thanks for your help.

Ian