How could I route 20 channals via a PXI-2501 to ch0 on a PXI-4472

[Ali Ghaderi]

I would like to use a PXI-4472 card to scan 20 signals. For this purpose I have a PXI-2501 which can be used to multiplex the 20 signals to, say, ch0 on the PXI-4472. I would like to know how can I scan each channel with a sampling freq of 1000S/s? Is it possible to synchronize the sampling and the switching?

[cld]

Ali,
It will not be possible to hardware time the two boards due to the oversampling of the 4472. There are no hardware passed signals present that would correctly align the switch with the individual sampling of the 4472. As a result, it would be necessary to do this in software...Switch, take readings from the 4472, Switch, etc.

Regards,
Chris D
NI Applications Engineer

[Ali Ghaderi]

Thank you Chris,
Please correct me if I'm wrong, I think that it is not possible to achiev such a high scan rate (50 scans pr. input pr. second) by any software code in LabVIEW. Is there any other cheap way to do this?

Regards
Ali