can I select any PFI pin as the source for WFTRIG on a PCI-6711?

[Jeff_H]

I am trying to externally digitally trigger the output of a waveform on my 6711 board.

I am using Cont Generation - E-series D-Trig.vi.

In order to use that code on my non-E board (6711), I found document 1YBFBIQI. In it, it states that to use the code on my 6711, I should set trigger or gate source spec control to PFI #6.

But in my 6711 manual it states (p 4-11 WFTRIG Signal) that I can select any PFI pin as the source for WFTRIG.

I thought PFI6 had a fixed association with WFTRIG only when it is an output (as per p4-11 WFTRIG Signal). Could you please explain?

Thanks.

[Spencer S.]

Jeff,

You are correct. Any PFI pin on the PCI-6711 can be the source of the WFTRIG signal. The KnowledgeBase to which you are referring instructs the user to change the PFI pin number from 0 to 6 because PFI0 does not exist on the PCI-6711. I am sure that the author of this document chose PFI6 because, more often than not, a user will not want to both input and output the WFTRIG signal.

Good luck with your application.

Spencer S.

[Spencer S.]

I need to correct myself. PFI0 does indeed exist on the PCI-6711. However, the heart of the answer remains the same.

Spencer S.

[Jeff_H]

If PFI0 exists, why does the code need to be changed to use PFI6 instead of PFI0? Thanks.

[Spencer S.]

It doesn't need to be changed. The VI will execute correctly with PFI0.

Spencer S.