Strangely, it was working, talking to my PNA, without any interface loaded in AUTOST until I restarted my PC.
Once I restarted it, then it said Interface Not Present.
Now, I’ve tried it your way and I get this error.
ERROR 150 in 351 Bad select code or device spec
Line 351; LOAD BIN “HPIBS;DEV gpib0 ISC 7”
While I don’t have any problem talking to it from Command Expert with my E8364C at GPIB0::16::INSTR.
And these interface settings;
VISA Interface ID: GPIB0
GPIB Address: 21
SICL Interface ID gpib0
Logical Unit: 7
And this is the same setup I had before the restart.