Storage file with DAQ-LVIEW PnP in Labview...

[bbel91]

Hi,
I am using an PLV AI Acquire waveforms and I store the data in a VI for storage on disk.
The problem is that the first row is filled with the number of the line in the buffer (number of samples/channel). My buffer is 512 samples wide so the first row is 1,2,3...512,1,2,3...512.... But what I want is the time in second in this row.
Somebody knows how to do ?

Regards,
Bruno.

[Kerouac]

High level VIs you are using are user-friendly but poor in functionnality. You should have a look to the examples provided in LabVIEW.

Open a new VI and select the Help Menu >> Find examples...

Browse to Fundamentals >> I/O File and then to Hardware I/O >> DAQ Traditionnal >> Stream to disk

For high acquisition rate, the spreadsheet file is not reliable. You have to store data in a binary file and store the acquisition rate and T0 in the header of the file.

Greetings from Paris.

Matthieu G.