GPIB Connection Problem: First Post Please Help!

[bennyt]

Hi everybody, this is my first post so any help would be greatly appreciated.

I am using a potentionstat made by Princeton Applied Research, Model 273A, and a program called Research Electrochemistry Software that helps me do voltammetry. However, when I run the program, I encounter an error that says "gpib_error_check 49508," so I assume that there is a problem with the GPIB connection. I have checked multiple times to make sure all the cables are connected correctly, so I don't think that's the issue. When I open NI-488.2 and I select my instrument (Instrument0), the value says "Instrument did not respond," so I'm guessing this is the problem. Moreover, when I try to communicate with the instrument by querying "*IDN?", the output is iberr = EABO, which means that there is a timeout condition because the I/O operation has been cancelled. We have tried reconnecting cables and restarting the machines, everything short of reinstalling the program because doing so would be difficult. Any suggestions?

Thanks,

Ben

[Dennis_Knutson]

Did you actually verify that the instrument supports the *IDN? query by looking it up in the instrument's manual? Are you sure that GPIB communication is actually enabled for the instrument? Have you asked the vendor of the software what their error means?

[Dennis_Knutson]

The instrument does NOT support *IDN? so your query should fail and the message on MAX is expected. Since the instrument does appear in MAX, then there is nothing wrong with any NI hardware or software and you need to contact the software vendor.