Keithley 2001 Operator's Manual page 164

IEEE-488 Reference
the input of the OR gate and thus, sets the ESB bit in the Sta-
tus Byte Register.
The individual bits of the Standard Event Status Enable Reg-
ister can be set or cleared by using the following common
command (see paragraph 4.10.2
*ESE <NRf>
The Standard Event Status Enable register can be read at any
time by using the following common query command (see
paragraph 4.10.3 for details):
*ESE?
Reading this register using the *ESE? command does not
clear the register. The following list summarizes all opera-
tions that will clear the Standard Event Status Enable Regis-
ter:
1. Cycling power.
2. *ESE 0
4-6
for details):
2001-900-01 Rev. K / August 2010