GPD-X303S Series User Manual 
Response time 
Minimum 10ms 
ERR? 
 
Description 
Checks the error status of the instrument and 
returns the last error message. 
Response time 
Minimum 10ms 
Contents 
See page 46 for the list of error messages. 
HELP? 
 
Description 
Shows the command list. 
Response time 
Minimum 50ms 
Return 
parameters 
ISET<x>:<NR2> Sets the value of current. 
VSET<x>:<NR2> Sets the value of voltage.    
  
ISET<x>? Return the value of current. 
VSET<x>? Return the value of voltage. 
IOUT<x>? Returns actual output current, 
VOUT<x>? Returns actual output voltage. 
TRACK<NR1> Sets the output of the power supply working 
on independent or tracking mode.  
BAUD< NR1 >Set the value of baud rate. 
RCL<NR1> Recall the setting data from the memory which 
previous saved. 
SAV<NR1> Saves the setting data to memory. 
BEEP<Boolean> Sets the BEEP state on or off. 
OUT<Boolean> Sets the output state on or off. 
LOCAL  Return to local mode  
*IDN? Returns instrument identification. 
ERR? Returns instrument error messages. 
STATUS? Returns the power supply state.
 
 Note 
All response time estimates are based on a baud rate of 
115200bps. Expect longer response times with a baud rate of 
57600bps or 9600bps. 
52