Keysight B2961A/B2962A SCPI Command Reference, Edition 6 5- 9
Error Messages
Execution Error
Error -233 Invalid version
The version of the data format is incorrect to the instrument.
Error -240 Hardware error
A hardware problem in B2961A/B2962A. This error message is reported if
B2961A/B2962A cannot detect the more specific error -241.
Error -241 Hardware missing; To recover channel, execute *TST?
A program command or query could not be executed because of missing hardware;
for example, an option was not installed. Execute the *TST? command to recover
or unlock channel.