174 Keysight Signal Generators Programming Guide
Programming the Status Register System 
Accessing Status Register Information 
*ESE, *ESE? (event status enable) sets and queries the bits in the Standard Event Enable Register 
which is part of the Standard Event Status Group.
*ESR? (event status register) queries and clears the Standard Event Status Register which is part 
of the Standard Event Status Group.
*OPC, *OPC? (operation complete) sets bit #0 in the Standard Event Status Register to 1 when all 
commands have completed. The query stops any new commands from being processed until the 
current processing is complete, then returns a 1.
*PSC, *PSC? (power- on state clear) sets the power- on state so that it clears the Service Request 
Enable Register, the Standard Event Status Enable Register, and device- specific event enable 
registers at power on. The query returns the flag setting from the *PSC command.
*SRE, *SRE? (service request enable) sets and queries the value of the Service Request Enable 
Register.
*STB? (status byte) queries the value of the status byte register without erasing its contents.
:STATus:PRESet presets all transition filters, non- IEEE 488.2 enable registers, and error/event 
queue enable registers. (Refer to Table 4-2.)