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MELSEC-Q/QnA
5 SEQUENCE INSTRUCTIONS
POINTS
(1) The MEP and MEF instructions will occasionally not function properly when pulse
conversion is conducted for a contact that has been indexed by a sub-routine program or
by the FOR to NEXT instructions.
If pulse conversion is to be conducted for a contact that has been indexed by a sub-routine
program or by the FOR to NEXT instructions, use the EGP/EGF instructions.
(2) Because the MEP and MEF instructions operate with the operation results immediately
prior to the MEP and MEF instructions, the AND instruction should be used at the same
position.
The MEP and MEF instructions cannot be used at the LD or OR position.
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