This command is used to read the standard event register 
Query syntax:*ESE? 
Parameter: None 
Returned parameter:<NR1> 
 
*ESR? 
This command can read the value of standard event status register. After executing this 
command, standard event status register is reset. Bit definition of standard event status 
register is as the same as the standard event status enable register   
Query syntax:*ESR? 
Parameter: None 
Returned parameter:<NR1> 
 
*IDN? 
This command can read information about power supply. The returns parameter contains 4 
segments divided by comma.   
Query syntax:*IDN? 
Parameter: None 
Returned parameter:<AARD>    segment description 
ITECH Ltd Manufacturer 
6512   Product model   
XXXXXX   Product serial number   
VX.XX –VX.XX   Software version   
Example:ITECH,6512,00000000000004,V1.01-V1.00 
 
*OPC 
When all commands before this command are executed, bit OPC in standard event register 
will be set to 1. 
Command syntax:*OPC 
Parameter: None 
Query syntax:*OPC? 
Returned parameter:<NR1>