I have NI 488.2 (driver 19.5) USB-GPIB control card connecting a Keysight 6654A power supply to a PC (win7 64bit).
Under the Keysight IO expert, the power supply is displayed as "Unknown GPIB0::5::INSTR", and cannot communicate to the PC with softweare of any kind. The NI VISA is set to the primary. I have other instruments on the same bench, like N9010, E8257D, E4419B, they are all working correctly.
Could anyone give any advices?
Hi,
GPIB-USB is not supported by driver version 19.5. You must use version 17.6 or earlier, this is documented on the NI website. I have a 6642A and I had the same problem, and I solved it using version 17.6. Here is the link for this download. Your 6654A should work fine after this fix.
ni-488-2 driver 17.6
Yves