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MELSEC-Q
7 PARAMETER SETTING
[Schematic image of MODBUS
R
device assignment parameter setting]
Programmable controller CPU device
MODBUS device
R
Internal relay (M)
Coil
000001
003500
004000
012191
065000
065004
065536
Holding register
400001
465536
3500
8192
2048
1000
401000
402000
404047
430000
6288
436287
M0
3500
M1201
M4700
M8191
Y0
8192
Y1FFF
Output (Y)
Latch relay (L)
L0
5
L4
L8191
SD0
2048
SD2047
Special register (SD)
Data register (D)
D0
1000
D999
D6000
6288
D12287
Coil assignment 1
Device code
M(0090
H
)
Head device number
1201
Head coil number
0
Assignment points
3500
Coil assignment 2
Device code
Y(009D
H
)
Head device number
0
Head coil number
3999
Assignment points
8192
Coil assignment 3
Device code
L(0092
H
)
Head device number
0
Head coil number
64999
Assignment points
5
Holding register assignment 1
Device code
SD(00A9
H
)
Head device number
0
1999
Assignment points
2048
Holding register assignment 2
Device code
D(00A8
H
)
Head device number
0
0
Assignment points
1000
Holding register assignment 3
Device code
D(00A8
H
)
Head device number
6000
29999
Assignment points
6288
5
MODBUS device assignment
parameter setting example
R
Head holding register
number
Head holding register
number
Head holding register
number