Keithley 6514

[lumberj84]

Hello. I am writing a simple program that gets current readings from Keithley 6514 electrometer. I am trying to read from the buffer. Problem is that I get errors 230, 420, and sometimes 800. Not sure what is causing this, but i tried to de-bug step by step and noticed that as soon as i add the "Buffer Read" block errors 230 and 420 arise. I have attached my program. Is there something that i am missing here? Any help will be appreciated! Thanks

[Mustanghipo65]

We had similar problems using this instrument over a GPIB bus. We ended up changing the setting on the instrument and used serial comm instead of GPIB. We also built our own driver for our needs (setting up instrument and reading voltage); we stuck to strictly SCPI commands via VISA.

[lumberj84]

Is there an example that I could look at? Thank you so much for your time!