EXFO FTB-1v2 Guia Del Usuario página 273

Using Your Unit and Modules in an Automated Test Environment
The following table presents a summary of the possible operations on ESR
and ESE registers.
Register
ESR
ESE
STB and SRE
The status byte register and service request enable register information is
presented in the following table.
FTB-1v2 and FTB-1v2 Pro
Read
Use *ESR?. Impossible
to write.
Use *ESE?. Use *ESE.
Bits
7 Not Used (N.U.)
6 Master Summary Status (MSS)/ Service
Request (RQS)
5 Event Summary Bit (ESB)
4 Message Available (MAV)
3 Not Used (N.U.)
2 Error Available (EAV)
1 Not Used (N.U.)
0 Not Used (N.U.)
Write
Use *CLS.

Read the register.

Use *ESE with a value equal to 0.
Mnemonics
Standard Status Data Structure
Clear
Bit Value
0
64
32
16
0
4
0
0
261