Capturing .csv files from a R&S Spectrum Analyzer

[cstorey · Accepted solution]

Here's pictures!Querry "MMEM:DATA?" and read it all back.

Parse header for data block size

 Hope that helps.

[johnjoe]

Thanks a lot for the pictures.  Unfortunately I've never used LabVIEW before, so I'm not sure what I'm looking at.  The version of NI-VISA that I am using does not have a query function, is this similar to a Write and Read?

[cstorey]

Yeah, a querry is a command sent to the instrument that will returna response.  In this case you write "MMEM;DATA?" and then you read it back.

To loosely translate the LabVIEW code..

1) they send query for the data.

2) they set the instrument termination char if need be

3) they parse header for the block size (that's the second image)

4) then read the data block-by-block in a while loop building up the file.until; no chars read, fewer chars than a full block, the termination character or file size is reached.

I'd look at their C# examples to see how they do similar.