11-26-2014 11:29 AM
Hi,
I have a question about adding channels of multi DAQs to 1 task
Let's say I have 3 DAQs on my chassis. Dev1,Dev2,Dev3
Can I add all the AI channels of 3 DAQs to 1 task so I can configure all 3 at the same time and and aquire data concurrently from all 3 from the same task.
If it is possible then what DAQmx Write setting I should use? N channel N sample?
Thanks
11-28-2014 04:49 AM
I think it depends on the specific DAQ device you are using, I think the higher end devices allow you to acquire from multiple devices in one task (I might be wrong) but on the lower-end devices you must start one task per device (or measurement type).
If you think about it, the timing/acquisition rates possible might be different on each device and the DAQmx driver would need to be able to collate all the results together from different devices.
11-30-2014 09:40 PM
Hi Sam
Thank you for your response
The DAQs I am using are all the same and they are PXI 6259. Do you know if I can group all teh channels to one task?
12-11-2014 11:59 AM
Any help is really appreciated
12-11-2014 08:24 PM
If you type the names of each device into a control, what error does it give you?
12-12-2014 07:01 AM
Nope, that board will not let you put all three cards into a single task. I've had to use multiple tasks, one for each card, on a similar card (same family). X Series cards will allow multiple cards to be in a single task. M Series does not.