Mitsubishi QJ71MB91 User Manual

6
PRE-OPERATIONAL PROCEDURES AND SETTINGS
6.5 Connection to a Target Device
6.5.2 How to connect the RS-422/485 interface
6 - 16
1
OVERVIEW
2
SYSTEM CONFIGURATION
3
SPECIFICATIONS
4
MODBUS(R) STANDARD FUNCTIONS
5
FUNCTION
6
PRE-OPERATIONAL PROCEDURES AND SETTINGS
7
PARAMETER SETTING
8
UTILITY PACKAGE (GX Configurator-MB)
(2) Connection examples
(a) Connection for 1:1 communication
(b) Connection for 1:n communication when host is master
1) For 4-wire communications
2) For 2-wire communications
Figure 6.13 Connection for 1:1 communication
Figure 6.14 Connection (for 1:n communication, 4 wire) when host is master
Figure 6.15 Connection (for 1:n communication, 2 wires) when host is master
Terminating
resistor
R
RDA
SG
FG
SDA
Signal name
RDA
SG
FG
Target device
Slave or
Master
SDA
Terminating
resistor
R
QJ71MB91 (CH2)
Master or Slave
Signal name
SDB
RDB
RDB
SDB
Terminating
resistor
R
RDA
SG
FG
SDA
Terminating
resistor
R
Terminating
resistor
R
RDA
SG
FG
QJ71MB91
SDA
Terminating
resistor
R
SDB
RDB
RDB
SDB
RDA
SG
FG
SDA
RDB
SDB
Third party
slave
Third party
slave
RDA
SG
FG
SDA
R R
SDB
RDB
RDA
SG
FG
SDA
SDB
RDB
RDA
SG
FG
SDA
SDB
RDB
QJ71MB91
Terminating
resistor
Third party
slave
Third party
slave

Mitsubishi QJ71MB91 Specifications

General

Brand	Mitsubishi
Model	QJ71MB91
Category	Controller
Language	English