Mitsubishi QJ71MB91 User Manual

9
PROGRAMMING
9.3 Program Examples for Use in MELSECNET/H Remote I/O Network
9.3.1 Automatic communication parameters
9 - 26
9
PROGRAMMING
10
DEDICATED INSTRUCTIONS
11
TROUBLESHOOTINGAPPENDICESINDEX
(2) Communications
Data are exchanged between the QJ71MB91 and MODBUS slave devices (station
No. 1 and No. 2) using the automatic communication function.
The following shows communications performed when using and not using GX
Configurator-MB.
(a) Automatic communication parameter setting diagram
1) When using GX Configurator-MB
Communication data in the QJ71MB91 are transferred to the programmable
countroller CPU on the MELSECNET/H remote master station as shown
below.
Figure 9.26 Communications (When using GX Configurator-MB)
Device
*3
400001
Coil
400100
000001
015001
016024
065536
465536
QJ71MB91
Device
MELSECNET/H
*1
MELSECNET/H remote master station
Programmable
controller CPU
MELSECNET/H
remote master module
MELSECNET/H
link refresh*1
MELSECNET/H remote I/O station (setting target)
MELSECNET/H link scan*2
MELSECNET/H
remote I/O module
CH2 Automatic communication
function buffer input area
2000H
2100H
213FH
2FFFH
64 words
100 words
4000 H
4A00 H
4A63 H
4FFF H
CH2 Automatic
communication
function buffer
output area
R
MODBUS slave device
(station No.1)
R
MODBUS slave device
(station No.2)
Holding register
64 words
64 words
100 words
100 words
D1000
D1063
D1100
D1199
W1000 H
W103F H
W1100 H
W1163 H
64 words
100 words
W1000 H
W103F H
W1100 H
W1163 H
*4
*4

Mitsubishi QJ71MB91 Specifications

General

Brand	Mitsubishi
Model	QJ71MB91
Category	Controller
Language	English