error -200279 DAQmx

[Haunya]

Hi,

I'm currently using the NI USB-6009 Data Acquisition hardware to take voltage readings across a Plant Microbial Fuel Cell that I have set up. When taking readings I get this error message "Error 200279" attached below.

Can someone please help me sort out this problem? 

I've attached a pictureof my Labview code as well.

Thanks.

-Haunya

[GerdW]

Hi Haunya,

the message is quite clear: your software is too slow to keep up with your DAQ hardware!

You need to read your data more often (aka "faster") - or decrease the sample rate of your DAQ device.

It also often helps to use a producer-consumer-scheme (as offered in the LabVIEW example projects!) to decouple DAQ from data analysis/logging.

The most easy part is to get rid of ExpressVIs as they aren't made for speed/effiency…