EXFO FLS-5800 CD/PMD Analyzer Source - Manual (Page 70)

Remote Control Commands
64 FLS-5834A
IEEE 488.2 Commands—Description
*ESR?
Description The *ESR? query allows the programmer to
determine the current contents of the Standard
Event Status Register. Reading the Standard
Event Status Register clears it. See the contents of
this register below.
Syntax *ESR?
Parameter(s) None
Response Syntax <RegisterValue>
PON CME EXE DDE QYE N.U. OPC
MSB LSB Standard Event Status Enable Register
N.U.