Explanation Of Commands; Command List; Basic Commands - Mitsubishi Electric MELDAS 60 Series Programming Manual

6. Explanation of Commands

6.1 Command List

6.1.1 Basic Commands

Process Command
Class
unit
Basic
command Bit
(Note) With the MELSEC PLC development tool (GX Developer), the "ANDP" command is alternatively
used.
Symbol
sign
LD
LDI
AND
ANI
OR
ORI
ANB
ORB
OUT
SET SET
RST
RST
MC M n
MCR
MCR
PLS
PLS
PLF
PLF
SFT
SFT
MPS
MPS
MRD
MRD
MPP
MPP
DEFR
(ANDP)
Process details
Start of logic operation
(A contact operation start)
Start of logic denial operation
(B contact operation start)
Logical AND
(A contact serial connection)
Logical AND denial
(B contact serial connection)
Logical OR
(A contact parallel connection)
Logical OR denial
(B contact parallel connection)
AND between logical blocks (Serial
connection between blocks)
OR between logical blocks
(Parallel connection between blocks)
Device output
D
Device set
D
Device reset
D
Master control start
n
Master control release
Generate one cycle worth of pulses at rising
D
edge of input signal
Generate one cycle worth of pulses at falling
D
edge of input signal
D
Device 1-bit shift
Registration of logical operation result
Read of operation results registered in MPS
Reading and resetting of operation results
registered in MPS
Generate one cycle worth of pulses to
oper-ation results at rising edge of input
signal (Note)
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6. Explanation of Commands
No.
of
steps
1
1
1
1
1
1
1
1
1~3
1
1~2
2
1
2
2
4
1
1
1
1
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