COMMAND OVERVIEW 
139 
IEEE 488.2 Common Commands 
 
*CLS 
Clears the Event Status register (Output Queue, Operation Event 
Status, Questionable Event Status, Standard Event Status) 
*ESE? 
Returns the ESER (Event Status Enable Register) contents. 
Example: *ESE?  
            >130 
Returns 130. ESER=10000010 
*ESE 
Sets the ESER contents. 
Parameter: <NR1> (0~255) 
Example: *ESE 65 
Sets the ESER to 01000001 
*ESR? 
Returns SESR (Standard Event Status Register) contents. 
Example: *ESR?  
          >198 
Returns 198. SESR=11000110 
*IDN? 
Returns the manufacturer, model No., serial number and system 
version number. 
Example: *IDN? 
          >GWInstek,GDM8342,00000000,1.0 
*OPC? 
“1” is placed in the output queue when all the pending 
operations are completed. 
www.GlobalTestSupply.com
Find Quality Products Online at: sales@GlobalTestSupply.com