Mitsubishi QJ71MB91 User Manual page 267

9
PROGRAMMING
(2) Communications
In the program example shown in this section, the following MODBUS device
assignment parameters are set for the setting target , QJ71MB91.
(a) MODBUS device assignment parameter assignment diagram
MELSECNET/H remote I/O
Y0
Y100
Y2FF
Y1FFF
D0
D3500
D8999
D12287
QJ71MB91 buffer memory
5000
H
5500
H
58FF
H
5FFF
H
station device
Output (Y)
512 points
Data register (D)
5500 points
User free area
1024 points
Figure 9.41 MODBUS device assignment parameter settings
9.3 Program Examples for Use in MELSECNET/H Remote I/O Network
9.3.2 MODBUS(R) device assignment parameters
R
MODBUS device
Coil
000001
512 points
000512
065536
Input register
300001
303500
5500 points
308999
365536
Holding register
400001
1024 points
401024
465536
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