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Acquisition Problem

Hello Guys,
 
I've just started a new project for monitoring AC signals. My hardware system includes NI cDAQ-9172 Chassis which accommodates three modules (NI 9205, NI 9217, and NI 9211). The software is LabVIEW 8.2 works under WindowsXP. So far I could configure my hardware and Windows could recognise it (the NI logo is appearing on the lower toolbar). Also I could see my hard ware on Measurement & Automation Explorer. However, when I use the test panels to test my modules, they works only if i select the Acquisition Mode [on Demand], while if selecting the other Modes (finite or Continuous) it shows me the following Error:
 
Error -200361 occurred at Test Panel
Possible Reason(s):
Measurements: Onboard device memory overflow. Because of system and/or bus-bandwidth limitations, the driver could not read data from the device fast enough to keep up with the device throughput.
Reduce the sample rate, or reduce the number of programs your computer is executing concurrently.
 
Even though when I reduced the sampling rate and/or number of points to acquire to a very low for my application, (1000 Hz and 100 points), still I get  the same error.
 
Is there any suggestions on what to do to solve this problem.
 
Cheers
 
Mike
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Hello again Guys,

If any one has any idea on how to solve the problem, please rescue me

cheers

Mike

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check wheather your CPU and RAM memory are sufficient or recomended spec, sometimes it might be because of improper installation of your drivers, re install it,
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 Hello Mike,

 1. Which service pack is your Windows XP? Here is a KB article that discusses a potential problem with Windows XP SP1, a .sys file needed to be replaced.
 2. What version of the DAQmx driver do you have installed?
        This can be checked by expanding the Software tab in Measurement and Automation Explorer then finding the DAQmx entry.
 3. Could you try the USB connection on the rear of the computer (direct to the motherboard)?      
 4. Does the computer have USB 2.0?
 5. Is there a USB hub in the signal path?
 6. Does this behaviour happen with just one module installed in the 9172 chassis?
 7. Can you try this Compact DAQ system on another computer?

Thank you,

 MatthewW
 Applications Engineer
 National Instruments

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