Hi dear Gurus,
I wonder if you could help me. I've been working on this programme for weeks now.
I need the instrument to do 2500 (maximum buffer of instruument) 4-point resistance measurements once every second and then give me the results in a file. Simple, right?
But I cannot get all the results out even though I do believe those 2500 measurements were performed. A :FETC? command gives the first 112 readings in full, and a truncated version of the 113th reading. I have played with and maximized the possible byte count for the VISA read command but cannot increase the number of readings further.
I suspect either that the VISA read command times out before the contents of the buffer can be read in full, or that the size of the buffer in LabView has limitations. I have tried using a separate programme to read the buffer after measurements are completed but also get a truncated result.
I hope someone could help or at least offer some suggestions as I am at my wits' end. Attached are the block diagram and the VI I have written. 150 measurements is enough to bring out the error. Thank you, everyone.