Operation Results Push, Read, Pop: Mps, Mrd, Mpp - Mitsubishi Electric MELSEC Q Series Programming Manual

5 SEQUENCE INSTRUCTIONS FOR MOTION CPU

5.3.10 Operation results push, read, pop: MPS, MRD, MPP

Setting
data
X Y M
―
[Function]
Bit device
SM F T C D
In the ladder display, MPS, MRD and MPP are not displayed.
[Instruction]
Command
MPS
MRD
MPP
(1) Operation result push (MPS)
• Stores the memory of the operation result (ON or OFF) immediately prior to the
MPS instruction.
• Up to 4 MPS instructions can be used successively.
If the MPP instruction is used during this process, the number of uses
calculated for the MPS instruction will be decremented by one.
(2) Operation result read (MRD)
• Reads the operation result stored for the MPS instruction, and uses that result
to perform the operation in the next step.
(3) Operation result pop (MPP)
• Reads the operation result stored for the MPS instruction, and uses that result
to perform the operation in the next step.
• Clears the operation results stored by the MPS instruction.
• Subtracts 1 from the number of MPS instruction times of use.
Usable device
Word device
W T C SD Z
Command
MPS
Command
MRD
Command
MPP
5 - 27
Constant Pointer Level
K H P N
Digit
desig- Index
nation
: Usable