Panasonic FP-E Programming Manual page 1085

4.9 Processing During Forced Input and Output
Operation during operation
For small−sized PLCs FP0R, FP0, FPΣ and FP−X
Forced relay R and output Y are rewritten according to the results of operation.
For medium−sized PLCs FP2 and FP2SH
For the relay and output Y specified by OT or KP instruction, the value of the forced
processing has a priority. When rewritten by a high−level instruction, the result of the
instruction has a priority.
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