labview not showing connected gpib instruments

[bharathkumarchowdary]

I've connected two GPIB instruments Keithley 2000 dmm, and Agilent E363X Power Source, via KUSB-488A (USB-GPIB) connector. The USB-GPIB Connector is being shown in the NI-MAX. And all the Instruments' GPIB addresses are shown up in NI-VISA Interactive Control. But when I develop a small VI to control them, those addresses are not shown up in the drop-down of "VISA Resource Name" List. Please help me with troubleshooting this problem

[Blokk]

I am not totally sure what is the actual problem, but I have found the following discussion seems similar to your case (non-NI GPIB driver/interface):

http://forums.ni.com/t5/Instrument-Control-GPIB-Serial/kusb-488-and-LABVIEW/td-p/555644

[ben64]

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bharathkumarchowdary a écrit :
I've connected two GPIB instruments Keithley 2000 dmm, and Agilent E363X Power Source, via KUSB-488A (USB-GPIB) connector. The USB-GPIB Connector is being shown in the NI-MAX. And all the Instruments' GPIB addresses are shown up in NI-VISA Interactive Control. But when I develop a small VI to control them, those addresses are not shown up in the drop-down of "VISA Resource Name" List. Please help me with troubleshooting this problem

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Have you tried "talking" to your instruments in MAX? Since it is not NI hardware it probably use a different VISA library and you will have to enable a passport. Search the MAX help for "passport", it will show you where to go to enable/disable them.

Ben64