HP 8920B Programmer's Manual page 320

Chapter 5, Advanced Operations
HP-IB Service Requests
320
1700 ! appropriate action.
1710 ! NOTE: Read the Event Register to clear it. If the Event Register is
1720 ! not cleared it will NOT latch another event from the Condition
1730 ! Register, thereby preventing the Test Set from generating another SRQ.
1740 !
1750 OUTPUT Inst_address;"STAT:HARD1:EVEN?"
1760 ENTER Inst_address;Event_reg
1770 RETURN
1780 !
1790 SUBEND