Mitsubishi Electric GOT2000 Series, Connection Manual

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4.1 MELSEC iQ-R Series
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.
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.
➠
4.3 MELSEC Redundant Setting
The following connection methods are available for the RCPU redundant system.
➠
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
1) Process CPU
2) Redundant function module
3) Tracking cable
4) CC-Link IE Filed Network Master/Local module
5) Remote head module
3)
4)
4)
Remote I/O station
GOT
5)
Standby system
(system B)
Control system
(system A)
CC-Link IE Filed Network
When an error occurs in System A, System B switches from standby system to control system.
1) Process CPU
2) Redundant function module
3) Tracking cable
4) CC-Link IE Filed Network Master/Local module
5) Remote head module
2) 1) 2) 1)
2) 1) 2) 1)
3)
4)
4)
Remote I/O station
5)
Control system
(system B)
Standby system
(system A)
CC-Link IE Filed Network
GOT
The GOT monitors the control system PLC CPU.
The GOT monitors the PLC CPU of the new control system after system switching.
Ethernet
Ethernet
(RCPU redundant system)
(RCPU redundant system)