Trouble with a couple of CompaqDaq Modules

[UnderDog]

Both the NI-9229 and NI9239 will not allow for " 1 Sample (on demand) " Acquisition mode in LabView Signal Express 2009.

Any help will be greatly appreciated.

Thanks,

rkp

Edited January 7, 2011 by rkp

[SuperS_5]

Hi,

This is the error from Signal Express:

Error -200077 occurred at DAQ Assistant

Possible Reason(s):

Requested value is not a supported value for this property.

Property: SampTimingType

You Have Requested: On Demand

You Can Select: Sample Clock

Device: cDAQ12

You cannot use this device in this configuration. In LabVIEW you can use the "Set Clock" vi to use something like the "OnboardClock." Although I guess this is not true "Sample on demand", however, the "Get 1 Sample" function gets only the last value. (So it looks like on demand sampling)