DIO ports

[pdupre]

Hello,

I am not sure of doing right.
I Have a PCI6251 DAQ card and I am wondering how to best use the DIO ports, I may need a kind of tutorial,
I am not sure to understand the difference between PO PFI/P1 PFI/P2 RTSI, etc ...
Now my ail is to generate a 10 Hz signal like an edge with a good precision (is the best 50 ppm of 100 ms then, or can it be better ?) and be able to interrupt it.

Thank for your help

[EdDickens]

If you are trying to generate a square wave, you would be much better off using the Counters on the DAQ card rather than the DIO lines.

Look in the Examples that ship with LabVIEW, (Help Menu>Find Examples) and search for Counter. You should several examples to help you get started.

Post back here if you need anything else.

Ed