Howdy everyone,
I have been using a GPIB-USB-HS to send SPCI command from my PC to the test instrument, which is Keysight device analyzer, and it had been working properly until today. When I tried to send SPCI commands to the instrument today, the errors occurred on the test instrument. It appears that the instrument is not reading my command correctly, for example, when I send '*IDN?' command to the instrument and the instrument reads '*HDN?' which gives me the error message 'not valid command'. I found that the instrument does not read the command correctly for some letters, I tried input 'I' 'X' 'D' 'H' and the instrument reads 'H' 'Y' 'D' 'H'. I have no clue of what's is going on here, has anyone seen this issue before and how do you fix it? Thanks!
