EXFO FLS-2200 Broadband Source - Manual (Page 124)

IEEE 488.2 and Specific Command Reference
116 FLS-2200
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
LSB
OPC N.U. QYE N.U
MSB Standard Event Status Enable Register
DDE PON CME EXE N.U EXE DDE