Hello all, I have different instruments connected trough GPIB, including a Lakeshore 335, and everything worked fine. The problem came when we recently bought an old model (330). The 'scan for instruments' does not find it, even when using all the same cables as the model that does work. The manual of this old model http://www.lakeshore.com/ObsoleteAndResearchDocs/330_Manual.pdf is quite outdated and I only find information on how to connect it to LabVIEW, which I don't use. I tried changing the MAX GPIB interface properties to match the ones specified for the old version in the manual, but I am not sure if the EOS byte 0AH correlates with number 10. I tried different numbers and nothing changes. Does anyone have any ideas on why it doesn't find it? Anything will be appreciated. Thank you, Laia

Instrument Control (GPIB, Serial, VISA, IVI)

Hi Laia,

The serial port is a good test. Also, if you haven’t already, try using the GPIB cable with other instruments just to make sure it’s good.

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