3 Remote Interface Reference 
Status Reporting Commands
120 E3632A User’s Guide
*SRE?
This command queries the Status Byte Enable register. The 
power supply returns a decimal value which corresponds to 
the binary- weighted sum of all bits set in the enable 
register.
*STB?
This command queries the Status Byte summary register. 
The  *STB? command is similar to a serial poll but it is 
processed like any other instrument command. The *STB? 
command returns the same result as a serial poll but the 
Request Service bit (bit 6) is not cleared if a serial poll has 
occurred.
*WAI
This command instructs the power supply to wait for all 
pending operations to complete before executing any 
additional commands over the interface. Used only in the 
triggered mode.