Hello Everyone,
I have to control two equipment using a IEEE488 bus and GPIB-USB-HS conector. One is a Power supply Delta SM 15-400 and the other is Keithely 181 nanovoltimeter. I'm using NI LabVIEW 17 (64bit) and the NI-488.2 17.0.0 version for the GPIB communication. Using "Measurement & Automation Explorer" I can perfectly control the Power Supply but for some reason I can't communicate with the nanovoltimeter using he same tool. Strange is that the "Measurement & Automation Explorer" recognizes the equipment (see figure "MAE_overview.png") but when I try to query or send a commands an error occurs (see figure "Query fail"). More puzzling is that testing in another computer with LabIVEW 11 and 3.0 version NI-488.2 using the same query and commands the communication with the nanovoltimeter works fine. I've already checked all (that I know) the communications default settings from the 17 version and the 3 version to match them but still no success. I also tried a third computer with LabVIEW 13 plugging in every USB port possible and the same problem occurs.
Does anyone have a clue of what is happening ? Why it only works in the 3.0 version NI-488.2 ?
Thanks for the attention,