Acquire single analog point on each pulse

[DavidT]

Hi,

I have a query on what i hope is a simple application. Im using a PCI-6220 card and what I would like to do is aquire a single data point which is to be triggered by a digital pulse. The pulse will come from an encoder, and what I would like to do is aquire a single analog data point each time the encoder channel pulse goes high (retriggerable daq?)

Which would be the best way to approach this?

Thanks,
David

[Norbert_B]

David,

this is easily done by importing your encoder-signal as external clock for your AI (which is either finite or continuous then!)

hope this helps,
Norbert

[EDIT]: This will work out directly if the encoder creates CMOS/TTL pulses. If it doesn't, you should consider some kind of signalconditioning for your encodersignal

Message Edited by Norbert B on 11-19-2007 03:41 AM