Hi all,
I'm using Keithley 2000 DMM for resistance measurement using external trigger (0.5-1 Hz) and official LabVIEW driver. Software as in example "Keithley 2000 Read Single.vi", function: 4-wire resistance, external trigger, "Action Send Trigger" removed, with while loop over Data Read Single.
- when using RS232 software hangs after 30-70 triggers, reboot of system is required to establish communication with DMM.... It's strange because "Data Read Single" has internal timeout and it should execute with an error
- when using NI USB-GPIB cable software is stable, but reads result twice / trigger, it seems that first read does not clear internal flag in Keithley...
tested on LabVIEW 2017 32 and 64 bit, 2016 32 bit, on two Keithley 2000 DMM, two PCs and two RS232 cables...