B20
Explanation
The operator who is running the stand-alone version
of IOCP has started IOCP processing after the IOCP function has completed,
or IOCP was unable to read from the the selected function to perform.
Operator response
If IOCP completed the selected function, no
action is required. Otherwise, notify your system programmer.
Problem determination
If IOCP did not complete the selected function,
save all associated output. Contact the service representative.