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MELSEC-Q
9 PROGRAMMING
(a) Automatic communication function
The setting target QJ71MT91 (192.1.0.1) and MODBUS
R
/TCP slave
device (192.1.0.2) communicate with each other using the automatic
communication function.
Set automatic communication parameters to the setting target QJ71MT91.
[Communication details]
Holding register
(Word register)
QJ71MT91
(192.1.0.1)
Master/Slave
Slave
3A00
H
(14848)
3000
H
(12288)
3A63
H
(14947)
3FFF
H
(16383)
Output data
100 words
0C28
H
(3112)
0C67
H
(3175)
113F
H
(4415)
1FFF
H
400001
400100
465536
000001
015001
016024
065536
MODBUS protocol
Output data
100 points
0C20
H
(3104)
0C23
H
(3107)
64 words
(1024 bits)
1000
H
(4096)
1100
H
(4352)
(8191)
MODBUS /TCP slave device
(192.1.0.2)
D5000
D5099
D4096
D4159
Programmable controller CPU
D4000
D4003
Input data
Input data
Output data
D4092
D4095
D4008
D4071
Auto refresh
(GX Configurator-MB)
Automatic communication
operation status storage area
Automatic communication
operation status storage area
Automatic communication
error code storage area
Automatic communication
error code storage area
Automatic communication
operation status storage area
Coil
(Bit register)
Input data
1024 points
(64 words)
Automatic communication
function buffer input area
Automatic communication
function buffer output area
(100 words)