Mitsubishi QJ71MB91 User Manual

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9.3 Program Examples for Use in MELSECNET/H Remote I/O Network
9.3.2 MODBUS(R) device assignment parameters
9
PROGRAMMING
9.3.2 MODBUS(R) device assignment parameters
(1) System configuration
The following system configuration is used for the program example in which
MODBUS device assignment parameters are set to the QJ71MB91 on a
MELSECNET/H remote I/O station.
Figure 9.40 System configuration example for the MODBUS device assignment parameter setting
* 1 The MELSECNET/H remote master station is installed in slot 0 of the base unit with the Start I/O
No. set as "00
H".
* 2 The QJ71MB91 is to be mounted in slot 0 of the base unit with the head I/O number set to “00
H”.
Remark
For details on construction and parameter setting of the MELSECNET/H remote I/
O network, refer to the following manual.
Q Corresponding MELSECNET/H Network System Reference Manual
(Remote I/O network)
4
2
5
3
1
6
7
(FG)
(FG)
RS-232
/485
RS-422
CH2
RDB
RDA
SDB
SG
SDA
CH1
QJ71MB91
RUN
RD
NEU.
SD
NEU.
RD
SD
CH1 CH2
ERR.
GX Developer
MELSECNET/H remote master station
*1
MELSECNET/H (remote I/O network)
Setting target
MELSECNET/H
remote I/O station
(Station No.1)
CH2
QJ71MB91 (Slave function)
(Station No.1)
*2
RS-422/485
MODBUS master device

Mitsubishi QJ71MB91 Specifications

General

Brand	Mitsubishi
Model	QJ71MB91
Category	Controller
Language	English