Instrument Control (GPIB, Serial, VISA, IVI)

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Duplicate GPIB address


It seems that all 0~30 addresses are used, but actually there is only one device.

I don't know why.

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Message 1 of 7

What GPIB card do you use?

Worth resetting the NI MAX database.

Soliton Technologies

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Message 2 of 7

Looks like your device uses Secondary Addresses.  While uncommon, it is a valid GPIB setup.  Can you supply more information on the device you are trying to communicate with?

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Message 3 of 7

Thank you for your reply.

The GPIB card is Keysight-82357B, and the device is Keithley 2410.

I've encountered the same situation twice in the past ten years. The last time is NI-PCI GPIB cards + Kepco power supplies.Keysight-82357B.jpg

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Message 4 of 7

Thank you for your reply.

I never know the trigger condition of the secondary address. Actually, only GPIB0::24::10 INSTR is valid.

The equipment combination is keysight-823578 + Keithey 2410.

It seems that GPIB card is constantly looking for device address...


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Message 5 of 7

You should just send and receive commands from "GPIB0::24::Instr" in your case. Ignore the secondary addresses with all Keithley instruments.

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Message 6 of 7

Thank you.

I think you are right.

The problem is that the list of device addresses is too long to find a right one if there are more instruments, so I want to clear it.

Do you have any suggestions?

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Message 7 of 7