PSW Series Programming Manual 
88 
Parameter/ 
Return parameter 
SYST:COMM:USB:REAR:MODE 1 
Sets the rear panel USB-B port mode to GPIB-USB 
adapter. 
 
Queries the error queue. The last error message is 
returned. A maximum of 32 errors are stored in the 
error queue. 
Returns an error code followed by 
an error message as a string. The 
string is returned as “string”. 
SYSTem:ERRor? 
-100, “Command error” 
 
Sets or queries the key lock mode. This setting is 
the equivalent of the F-19 function setting.  
SYSTem:KEYLock:MODE  {0|1} 
SYSTem:KEYLock:MODE? 
Parameter / 
Return parameter 
Panel lock: allow output off. 
Panel lock: allow output on/off. 
 
Enables or disables the front panel key lock.  
SYSTem:KLOCk { OFF | ON | 0 | 1} 
SYSTem:KLOCk?