Storing/Reading/Clearing The Operation Result - Mitsubishi Electric MELSEC iQ-F FX5 Programming Manual

Storing/reading/clearing the operation result

MPS, MRD, MPP
• MPS: This instruction stores the preceding operation result (ON/OFF) to memory.
• MRD, MPP: These instructions read the operation result stored by the MPS instruction, and executes operations from the
next step using that operation result.
Ladder diagram
MPS
MRD
MPP
FBD/LD
EN ENO
Processing details
■MPS
• This instruction stores the preceding operation result (ON/OFF) to memory.
• This instruction can be used up to 16 times consecutively. When MPP instruction is used in between, the number of uses of
MPS instruction is decremented by 1.
■MRD
• This instruction reads the operation result stored by the MPS instruction to memory, and executes operations from the next
step using that operation result.
■MPP
• This instruction reads the operation result stored by the MPS instruction to memory, and executes operations from the next
step using that operation result.
• This instruction clears the operation result stored by the MPS instruction from memory.
• The number of uses of MPS instruction is decremented by 1.
Operation error
There is no operation error.
Structured text
ENO:=MPS(EN);
ENO:=MRD(EN);
ENO:=MPP(EN);
6 SEQUENCE INSTRUCTIONS
111
6.2 Association Instruction
6