Sequence Instructions List; How To View The Instruction List Table - Mitsubishi Electric A800 Programming Manual

800 series, plc function
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Sequence instructions list

3.23

Sequence instructions list

3.23.1

How to view the instruction list table

Instruction
Classification
symbol
MOV
Transfer
MOVP
1)
2)
1): Instructions are classified according to application.
2): Indicates the instruction symbol used in the program.
Instruction symbols are based on 16-bit instructions.
• Change the instruction symbols for 32-bit instructions as shown below.
32-bit instructions: Add a D to the start of the instruction.
Example
16-bit command
• Change the instruction symbol so that the start execution command is output when the signal is ON, as shown below.
Add a P to the end of the instruction that is executed only at the leading edge of OFF to ON.
Example MOV
Instruction executed during ON
3): Indicates the symbol diagram on the ladder.
MOV
S
Indicates destination.
Indicates source.
Indicates instruction symbol.
Destination: Indicates the destination of the data after operation.
Source: Stores the data before operation.
108
Sequence program
Symbol
S
D
MOV
S
D
MOVP
3)
+
D+
32-bit command
MOVP
Instruction executed only at the leading edge of OFF to ON
D
Process
Execution
description
condition
(S)(D)
4)
5)
WAND
S1
S2
D
Indicates destination.
Indicates source.
Indicates instruction symbol.
Number of
steps
5
6)

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