S-Series software description, where to find ? Confused !

[rrrnj]

I'm trying to acquire multiple channels simultaneously on a PCI-6123 S-Series card, have previous experience with M-Series card.  I cannot find a software description of this card, what features are available etc.

There appears to be only one ai/StartTrigger, so I'm confused whether each channel should have its own task or not.  If there's just one task, how does it know which channels to acquire ? Can I get different acquisition rates on different (groups of) channels ?

I've seen a couple of posts suggesting I'm not the only one looking !

Btw, I'm working in C using the NI-DAQmx library.

Thanks for any help !
-rajeev-

[reddog]

I'm not sure if this is what you're looking for or not, but here is a link to the S Series Help and User Manual.  From a software stand point, programming is identical to M Series boards except there is no option to program the convert clock since S Series boards aren't multiplexed.  There is still only one timing and data transfer engine so there is still only one ai/StartTrigger and you can only acquire data from one AI task at a time.  This also means you can't acquire from multiple AI channels at the same time at different sampling rates.  Which channels are acquired is still controlled by which channels are created and added to a task through the create channel function (e.g. DAQmxCreateAIVoltageChan).  Only channels that have been created on the task will be acquired once the task is run.

[rrrnj]

Thanks !  The S series help manual appears to be exactly what I need at this point.  Btw for some reason the link you provided did not work for me, however I was able to find said manual elsewhere (in the NI-DAQmx v8.00 download)

-rajeev-

[Tom_W_[DE]]

Hi rrrnj-

In case you still need the S Series Help File for device-specific information.