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4. HOW TO MONITOR REDUNTANT SYSTEM
4.8 Connection to the Redundant Type Extension Base Unit
4.8.2 Ethernet connection (Connection to the Ethernet module mounted on
redundant type extension base unit)
This section explains the Ethernet connection for connecting the GOT to the Ethernet module mounted on the redundant
type extension base unit.
The following shows an example of connecting the GOT to the Ethernet module mounted on the redundant type
extension base unit.
(1) Connection method
Connect the GOT to the Ethernet module (QJ71E71-100, QJ71E71-B5, QJ71E71-B2) mounted on the
redundant type extension base unit.
For details, refer to the following.
8. ETHERNET CONNECTION
(2) GT Designer3 setting
Set GT Designer3 as follows.
(3) Monitoring target change when system switching occurs in a redundant system
When the system switching occurs, the GOT automatically changes the monitoring target to the PLC CPU
switched to the control system.
Setting item Settings Model
Controller Type
MELSEC-QnA/Q/QS, MELDAS C6*
MELSEC-QnA/Q, MELDAS C6*
Device setting
(Network setting)
Host Host
Q Redundant Setting Do not set the item.
Monitor target
Control system
(System A)
GOT
Standby system
(System B)
Power supply
module
Power supply
module
Power supply
module
Q25PRHCPU
QJ71E71-100
Q25PRHCPU
QJ71BR11
QJ71BR11
Empty
Empty
Empty
Empty
Empty
Empty
Empty
Ethernet connection
Redundant type extension base unit
Network No.2, Station No.1
(Ethernet module)
Network No. 2, Station No. 2