System Commands 
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will be returned first. when you read all the error tips information in the error 
queue. The ERROR led will turn off.    When error occur the buzzer of the 
power supply will beep once. 
⚫  If more than 20 errors occurred, the last one stored in the queue will be 
replaced  by  “-350”,  Meaning  "too  many  mistakes.".  If  the  error 
messages in the error message    queue are not read out, the error 
following will not be saved to the queue. If there is no error message, 
when read error information, it will return “+0”, meaning “no error”. 
⚫  If  turn  off  the  power  supply  or  send  “CLS(clear  status)  order,  the  error 
messages in the error queue will be cleared. *RST order will not clear the 
error messages in the error queue. 
 
SYSTem:CLEar 
This command is used to clear the error information. 
Command syntax: 
SYSTem:CLEar 
Parameters 
  None 
Returns:   
None 
SYSTem:REMote 
This command is used to set the power to remote control mode. Only the Shift, 
Local, Select, and On / Off keys are available on the front panel, and all other 
keys  are  locked  for  use.  Failure  to  send  this  command  for  remote  control 
configuration  before  sending  control  commands  using  a  PC  may  cause 
communication errors. 
Command syntax 
SYST:REM   
Parameters 
None 
Query syntax 
None 
SYSTem:LOCal 
This  command  is  used  to  switch  the  instrument  to  local  control