sampling diffrent signals from diffrent moudles wit difrent sampling

[Waleed Ali]

I will be working on a project that would aquire 4 signals from 4 moudles in the compact DAQ with diffrent sampling rate for each signal.

I am looking for a hint to structure my code to do that and at the same time for all signals

[jgcode]

QUOTE (Waleed Ali @ Mar 5 2009, 03:26 AM)

I will be working on a project that would aquire 4 signals from 4 moudles in the compact DAQ with diffrent sampling rate for each signal.

I am looking for a hint to structure my code to do that and at the same time for all signals

You can share the cDAQ Timing Clock with all modules quite easily in DAQmx.

One way is to programmatically create the Task in LabVIEW and pass it to each Virtual Channel you create, then set the Timing for the Task.

Another way is to set the Task in MAX.

Timing can also depend on your module as some modules can override the Timing you set.

E.g. (Off the top of my head) 923x set sampling rate to set-intervals of 50k.

Also check out the http://zone.ni.com/devzone/cda/tut/p/id/5434' target="_blank">NI KB on DAQmx.

Cheers