Melsec Iq-R Series - Mitsubishi Electric GOT2000 Series Connection Manual

4. HOW TO MONITOR REDUNTANT SYSTEM
4.1

MELSEC iQ-R Series

This section explains the restrictions on the connection methods and other information applicable when the RCPU
redundant system is monitored by the GOT.
Ethernet
Control system
(system A)
Ethernet
Standby system
(system A)
In a redundant system, the monitoring can be performed with the monitoring target specified as the control system or the
standby system on the GOT. By specifying the monitoring target PLC CPU as the control system of the redundant system,
the monitoring target is automatically changed to the PLC CPU in the control system when system switching occurs.
To enable this automatic changing of the monitoring target at the GOT, settings are required in the GT Designer3.
➠
The following connection methods are available for the RCPU redundant system.
➠
➠
➠
➠
4 - 2
4.1 MELSEC iQ-R Series
The GOT monitors the control system PLC CPU.
GOT
4)
3)
1) 2)
CC-Link IE Filed Network
5)
When an error occurs in System A, System B switches from standby system to control system.
The GOT monitors the PLC CPU of the new control system after system switching.
GOT
4)
3)
1) 2)
CC-Link IE Filed Network
5)
4.3 MELSEC Redundant Setting
4.1.1 Connection to built-in Ethernet port CPU
4.1.2 Connection to Ethernet module
4.1.3 Connection to CC-Link IE Controller Network
4.1.4 Connection to CC-Link IE Field Network
(RCPU redundant system)
4)
Standby system
(system B)
1) 2)
1) Process CPU
2) Redundant function module
3) Tracking cable
4) CC-Link IE Filed Network Master/Local module
5) Remote head module
Remote I/O station
(RCPU redundant system)
4)
Control system
(system B)
1) 2)
1) Process CPU
2) Redundant function module
3) Tracking cable
4) CC-Link IE Filed Network Master/Local module
5) Remote head module
Remote I/O station