PSU Series Programming Manual 
122 
:SYSTem:COMMunicate:RLSTate 
{LOCal|REMote|RWLock} 
:SYSTem:COMMunicate:RLSTate? 
Parameter/Return 
parameter 
All keys are valid. This instrument is 
controlled by the front panel controls. 
All keys are invalid, except for the [local] 
key and the ability to turn the output off. 
All keys are invalid. The instrument can 
only be controlled remotely. 
:SYST:COMM:RLST LOCAL 
Sets the operating mode to local. 
:SYSTem:COMMunicate:TCPip:CONTrol 
 
Queries the socket port number. 
:SYSTem:COMMunicate:TCPip:CONTrol? 
SYST:COMM:TCP:CONT? 
>2268 
Returns the socket port number. 
:SYSTem:COMMunicate:SERial:LANGuage 
[:SELect] 
 
Sets or queries the communication protocol for the 
serial port.  
:SYSTem:COMMunicate:SERial:LANGuage[:SELect] 
{“SCPI”|“LEGACY”} 
:SYSTem:COMMunicate:SERial:LANGuage[:SELect]?  
Parameter/Return 
parameter 
Sets the communication protocol to 
SCPI.