monitor the buffer of a DAQ Assistant

[hellolv]

Hi,

I am acquiring three analog inputs and have the Error -200279 popping up.

Can I monitor the buffer of a DAQ Assistant?

Any suggestion that can help me seeing what's happening and what's overflooding my analog input channel?


Thanks much in advance.


hellolv

[David L.]

Hellolv,

A great way to see what is causing your error is to use LabVIEW’s ‘Explain Error’ tool. This can be found under ‘Help >> Explain error’. Your error results in:

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Error -200279 occurred at an unidentified location

Possible reason(s):

Measurements: Attempted to read samples that are no longer available. The requested sample was previously available, but has since been overwritten.

Increasing the buffer size, reading the data more frequently, or specifying a fixed number of samples to read instead of reading all available samples might correct the problem.

If you are still having problems, please post what DAQ card you have.

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Basically, this means that the samples are getting overwritten before they are brought into LabVIEW. To fix this problem, you can decrease your sample rate or increase the number of samples you acquire each time (if you are doing continuous).

If you are still having problems, please attach a very small piece of code which reproduces your problem, along with what DAQ card you are using. Also, please post what LabVIEW version you are using and what version of the DAQmx driver you have. This can be found in Measurement and Automation Explorer >> expand the ‘Software’ Folder >> click on NI-DAQmx, and the version will appear on the right hand side.

[hellolv]

Thanks for your response.  I am using USB-6008 and I think my other loops are just taking way too much time to overload the buffer here.