Chapter 13 Warning Codes|MH300
ID No.
Display Warning Name Description
55
Function defect
(PLFF)
Function code error during PLC operation
Action and Reset
Action condition
The program detects incorrect command (unsupported command) during
PLC operation, then PLFF warning shows.
Action time Immediately displays when the fault is detected
Warning setting parameter NA
Reset method
Check if the program is correct and re-download the program. If the
does not exist, the warning automatically clears.
Reset condition N/A
Record N/A
Cause Corrective Actions
The PLC runs an incorrect
command during operation
When starting the PLC function and there is no program in th
PLFF warning shows. T
his is a normal warning, please download the
program.
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