System Commands 
  Copyright © Itech Electronic Co., Ltd.  13 
mode(control from panel). In this mode ,all of keys on front panel is valid. 
Command syntax 
SYST:LOC 
Parameters 
None 
Query syntax 
None 
SYSTem:RWLock 
This  command  is  transmit  through  interface,  the  same  function  as 
SYST:REM, but the difference is: this command can lock “LOCAL” button 
as well. When this command is executed, the “Local” button can’t switch 
to local control mode. 
Command syntax 
SYST:RWL 
SYSTem:BEEPer 
This command is used to turn on/turn off the beeper, when the arguments is set 
to 1/ON, the beeper is enabled and press keyboard will beeper, otherwise, it is 
mute. 
Command syntax 
SYSTem:BEEPer 
Parameters 
OFF|ON|0|1 
Example 
SYST:BEEP 1 
SYSTem:COMMunicate:GPIB:RDEVice:ADDRess 
This command is used to set the address of GPIB interface. 
IT7321 instrument has no GPIB interface, so the command is only applicable to 
other models. 
Command syntax 
SYSTem:COMMunicate:GPIB:RDEVice:ADDRess <NR1>