Read more often.

[kdm7]

Will reading more often avoid buffer overflow error?

Does the attached code solve the problem?

Anyone please help.

[P@Anand]

What do you "Read more often"? Do not use build array like this, it may lead to memory leak. Try to initialize the array and use the "Replace array" primitive. 

[GerdW]

Hi kdm,

you get a buffer overflow when you don't fetch new data fast enough…

- Calling DAQmxRead 10 times in a row is just a cumbersome workaround - and a RubeGoldbergish one too: use a FOR loop for repeated tasks!

- It's not important to call DAQmxRead 10 times in a row, but to call this code snippet on a regular basis.

- You might try to read data blocks of defined size, it is recommended to fetch blocks of 1/10 of the samplerate…

[kdm7]

Hi GerdW,

I also need to get data column wise.

PS. I am actually documenting this code, so can you tell me what this code does?

[GerdW]

Hi kdm,

you can get data "columnwise" even when you would use a loop…

I already told you what the code does: it calls DAQmxRead 10 times in a row, trying to read 25 samples with each call. I don't know why this should be better than just reading 250 samples with one call…

[crossrulz]

Please don't start a new thread for the same problem

http://forums.ni.com/t5/LabVIEW/Read-from-channels/m-p/2902140#U2902140