Allen-Bradley LOGIX 5000 Reference Manual page 446

Chapter 7 Equipment Phase Instructions
446
To take action The PFL instruction writes its value to the Failure member of the PHASE tag for the equipment phase.
when a failure
occurs, monitor
the Failure
member of the
PHASE tag.
Number
To clear the Use a PCLF instruction to clear the failure code of an equipment phase. Instructions such as a CLR or
failure code, use MOV will not change the failure code.
a PCLF
instruction.
Affects Math Status Flags
No.
Major/Minor Faults
A major fault will occur if:
Instruction is called from outside an Equipment Phase
program.
See Index Through Arrays below for array-index faults.
Rockwell Automation Publication 1756-RM006K-EN-P - November 2018
Description
When creating an equipment phase, the Logix Designer application
creates a tag for the status of the equipment phase.
controller scope
Name = phase_name
PHASE data type
The PFL instruction writes its value to the failure member for the
equipment phase.
Fault type Fault code
4 91