Parallel test with USB-6009

[lvrichard]

Hi All,

I am testing a device using a USB-6009. I would like to test two deives in parallel, which flags up an error:

'The specified resource is reserved. The operation could not be completed as specified'

What is the best way of imlpementing parallel test within labivew (I currently do not have access to test stand!)

Thanks,

Richard.

[GerdW]

Hi richard,

implement a VI, which fully handles the USB6009. Then send the measurement data to both testing routines…

The USB6009 only has one ADC, so you cannot share this resource between several tasks!

[lvrichard]

Hi Gerd,

Thanks for the quick reply,

Please could you expand on this a little more for me ? I don't fully understand what you mean by creating a VI which 'fully handles' the USB6009...

Thanks again,

Richard.

[aputman · Accepted solution]

Look up Action Engines for writing a VI that fully handles the device.

As GerdW says, there is only one ADC (analog to digital converter) in this device and so you can only have one DAQmx task running at a time.  You can, however, have more than one channel in a task.  The channels are still polled one after the other so technically it's not a parallel test but it is as close as you'll get with this card. 

[lvrichard]

Perfect thanks. Thanks to GerdW too.