14 Error Messages
130 Keysight U2722A/U2723A Programmer’s Reference
Error Messages
Error messages are created once a command error or an erroneous condition has 
been detected. 
– Errors are retrieved in first-in, first-out (FIFO) order.
– Errors are cleared as you read them.
– No additional errors will be stored until you remove the errors from the queue. 
If no errors occur when you read the error queue, the instrument will respond 
with 0, “No error”.
– SYSTem:ERRor? will read and clear one error from the queue.
Error List
The table below contains the device-dependent errors.
Table 14-1 Device-dependent errors 
Error Device-dependent errors (these errors set the Standard Event Status register bit #3)
0 No error
This is the response to the SYSTem:ERRor? query when there are no errors.
+101 Calibration state is off
Calibration is not enabled. The instrument will not accept calibration commands.
+103 Calibration vol tage or current range is incorrect
Calibration voltage and current ranges are set incorrectly. Calibration cannot be executed.
+104 Bad sequence of calibration commands
Calibration commands have not been entered in the proper sequence.
+120 Configuration Multiple slave not allowed
Multiple slaves are not allowed in the configuration.
+121 Configuration master not allowed
Status master is not allowed in the configuration.
+246 Master Controller Busy
The channel is busy. All input commands will be ignored.