Unable to digitally trigger a counter output task using the PXI-6602

[RaimonPousa]

Using the PXI-6602 I want to start a pulse generation with a digital trigger. I generate the digital signal with an M series card and connect this signal to the port0/line0 (which corresponds to PFI0) of the 6602 card. I use PFI0 as a digital start trigger, but I've tried with other PFI lines. I successfully can read port0/line0 to make sure is TRUE, but the pulse generation task does not start. It is like if PFI0 wasn't connected to port0/line0!

I attach this simple VI.

I'll appreciate any thoughts on this...

Raimon

[stilly32]

Hi,

Single point writes (like the digital write you use for the M series card) autostart by default, so you are writing high before your counter task is ready. if you go from low to high after your counter has started, you should see generation start on a tigger.

cheers,

Andrew S

[RaimonPousa]

Hi Andrew,

This makes sense. Thank you very much. I'll make sure I start the counter first.

Raimon