We are using data aquisition card 818HG for data aquisition using Labview.

[020 7491906]

We are acquiring high frequency data and are using drivers from Advantech for the same.we are using multichannelDMA for aquiring the data.My problem is that I can see the data being aquired whenI run the DMA.vi independantly but cannot see any data being aquired when I call this vi in the main program.What could be the possible reasons? Thank u Ancy

[Darren]

Ancy,

Your best bet in getting a solution to this problem would be to contact the manufacturer of the hardware, who I'm assuming provided you with the LabVIEW driver. They should be able to assist you with questions regarding the use of the driver. Also, if one of your colleagues is an experienced LabVIEW programmer, you could get them to review your program to make sure they don't see anything LabVIEW-related that might be causing the problem.

Good luck, and have a pleasant day.

Sincerely,
Darren N.
NI Applications Engineer