error -200294: Not enough samples were written to satisfy the initial data transfer request condition

[nh.]

Hi,

I get this 'error -200294' on startup of the program which is made of LabVIEW.

The error message is below. (Also, you can see it in the attached file)

Possible reason(s):

Measurements: Not enough samples were written to satisfy the initial data transfer request condition.

To successfully start a generation, increase the number of samples initially written to the buffer before starting.  Alternatively, decrease the number of samples required to start by changing the data transfer request condition.

End of Data Sample Number: 100
Minimum Value: 512

Task Name: _unnamedTask<0>

I am using LabVIEW 8.6, want to generate sine wave through 'NI 9263', and collect voltage value through 'NI 9234'.

The system is composed like this:

My computer -> NI 9263 -> PA7F -> F3/Z602WA -> P703B -> NI9234 -> My computer
(PA7F: Shaker system power amplifier,
 F3/Z602WA: Electromagnetic shaker system,
 P703B: Three channel power unit of 'Wilcoxon Research' company.)

Do you have any idea which can fix it?

Thank you.

Message Edited by nh. on 08-10-2009 05:33 PM

[Brian_T]

Hello,

Depending on how you have the VI setup, you may need to call a DAQmx Write function before you call the DAQmx Start Task.  In some situations you need to have some samples in the buffer to be outputted as soon as the task starts.  This could be one thing. Can you post your code, or at least a simplified version that produces the error?  

Thanks,

Brian T

Applications Engineer

[nh.]

I attached the code.

Would you please look at it?

Thanks for your help.

[nh.]

I also attached jpg file.

[nh.]

I heard that this program worked well in ComopactNIO environment.

I think this error starts happen when I tried to use it with CompactDAQ.

I am new in LabVIEW program.

I would really appreciate if you can help me.

Thank you.

[mgh94]

Hi nh,

How did you fix that error?