2
SYSTEM CONFIGURATION
2.2 Network Configuration
2 - 6
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) Using the QJ71MB91 as a slave station
(a) Connecting to a master station (1:1) with a RS-232 line
(b) Connecting to a master station (1:1) with a RS-422/485 line
(c) Connecting to master stations (1:1) with RS-232 and RS-422/485 lines
* 1 The same station number is used for both RS-232 and RS-422/485 interfaces.
(d) Connecting to a master station (1:n)
Figure 2.5 Connecting to a master station (1:1) with a RS-232 line
Figure 2.6 Connecting to a master station (1:1) with a RS-422/485 line
Figure 2.7 Connecting to master stations with RS-232 and RS-422/485 lines
Figure 2.8 Connecting to a master station (1:n)
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.
R
RS-232
QJ71MB91 (Slave function)
MODBUS master device
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.
R
RS-422/485
QJ71MB91 (Slave function)
MODBUS master device
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.
R
RS-232
MODBUS master device
R
MODBUS master device
RS-422/485
QJ71MB91 (Slave function) *
1
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.
R
R
RS-485
MODBUS master device
MODBUS
slave device
R
MODBUS slave
device
QJ71MB91 (Slave function)
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