Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual page 116

■Redundant line
In redundant line configuration, two network lines are prepared and an intelligent device station (safety station) (8) is
connected to each network line. (The RJ71GF11-T2 of both systems operate as a master station of each network.)
When an error occurs in the control system network (1), the control is switched to the standby system network (2) to continue
safety communications.
Ensure that the configurations of the network of both systems are the same.
(1) (3) (4)
(3) SIL2 Process CPU
(4) SIL2 function module
(5) Redundant function module
(6) RJ71GF11-T2
(7) Tracking cable
(8) Remote head module
(9) Module set to the SIL2 mode
For intelligent device stations (safety stations), only redundant remote head modules can be used.
It is recommended that the network topology and Ethernet port for connecting an Ethernet cable be made the
same. Also, visually check the actual network configuration for the network configuration of both systems. The
CC-Link IE Field Network diagnostics may display a configuration different from the actual system
configuration.
• Setting method
When using the module in a redundant line configuration, select the following module names in the project of each station.
Project
Master station project
Intelligent device station project
1 FUNCTIONS
114
1.8 Safety Communication Function
(5) (6)
(9)
(8)
Setting items
"Add New Module" window
"Network Configuration Settings" in
"Basic Settings"
"New" window of the project
(7)
(2) (3)
(10)
Station Type
Master station
Intelligent device station
Intelligent device station
(4) (5) (6)
Module Name
RJ71GF11-T2(LR)
RJ72GF15-T2(LR)
RJ72GF15-T2(LR)