Running multiple VI's on same NIDAQ CARD, It only seems to allow me to run one instance on Analog Input per card.

I need to run 20 copies of a top level VI simultaneously. The first VI runs fine, however, when I start the second one, it runs without errors it just doesn't take any Analog Voltage readings. The first one continues to run smoothly. LabVIEW 8.2, Windows XP, Daq card in question is NI-PXI 6225.
It seems to me that if that card is basically "locked" by running one analog measurement, the functionality is SEVERELY limited. like 1/80th usable unless I pile all of my code into a single VI.
Please advise. Is there a way for multiple VI's to "share" this card?
One should welcome adversity as an opportunity to excel.

You don't have to 'pile' all of your code into one VI but you can't have multiple analog in tasks running at the same time. You have a single A/D converter and a single scan clock. Because of this, the DAQmx driver prevents you from starting more than one task. You could have a single VI that does nothing but scan all of the channels and publishes the results to either a shared variable or uses DataSocket. Or, a single VI could respond to requests from other VIs to add channels on a dynamic basis. In order to do this however, the running task has to be first stopped. You would also have to deal with any possible conflicts with different scan rates.

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