Mitsubishi Electric GOT2000 Series Connection Manual page 234

■2. When using two GOTs
Connect a GOT to each PLC CPU to respond to the system switching.
Monitor
target
Control system
(System A)
Network No. 1, Station No. 2
(remote I/O station)
(1) Connection method
Connect GOTs to the RS-232 interface of the control system and standby system CPU modules (Q12PRHCPU,
Q25PRHCPU) of the redundant system.
For details, refer to the following.
➠
(2) GT Designer3 setting
Set GT Designer3 as follows.
Setting item
Controller Type
Device setting (Network setting)
MELSEC Redundant Setting
(3) Monitoring target change when system switching occurs in a redundant system
When the system switching occurs, the GOT cannot change the monitor target automatically in response to the
system switching.
The GOT that is connected to the control system CPU module after system switching continues the monitoring.
Different from the case using one GOT, no cable reconnection is required.
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4.2 MELSEC Q Series
CPU direct connection
GOT1
Network No. 1, Station No. 0
(Multiplexed remote master station)
MELSECNET/H remote I/O network
6. DIRECT CONNECTION TO CPU
MELSEC-Q/QS, Q17nD/M/NC/DR, CRnD-700
Host
➠
4.3 MELSEC Redundant Setting
POINT POINT POINT
To automatically change the monitoring target after system switching using one GOT, make the
MELSEC redundant settings.
➠
4.3 MELSEC Redundant Setting
CPU direct connection
GOT2
Network No. 1, Station No. 1
(Multiplexed remote sub master station)
Settings
Standby system
(System B)
Model