Unfortunately, writing the serial number via GPIB does not work.
I have already tried all possible combinations, but nothing has helped.
This command is in the user manual: SERIAL [space] [space] B028948
to write this serial number. But it doesn't work :-(
Please do not forget to send the password -> PASS "ATG"
Serial number readout: 0x01 = SOH / 0x19 = ^Y / 0x80=PAD
Or in other words -> garbage
Such strange numbers are also set in the memory of my device., but not the same.