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4. HOW TO MONITOR REDUNTANT SYSTEM
4.
HOW TO MONITOR REDUNTANT SYSTEM
This section explains the restrictions on the connection methods and other information applicable when the QCPU
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.
Monitor
target
MELSECNET/H remote I/O network
CPU direct
connection
GOT
Station No. 0
(Multiplexed remote master station)
Q25PRHCPU
QJ71LP21-25
QJ71BR1
1
QJ71E71-100
QJ61BT1
1N
Station No. 1
(Multiplexed remote sub master station)
Standby
system
(System B)
Q25PRHCPU
QJ71LP21-25
QJ71BR1
1
QJ71E71-100
QJ61BT1
1N
Station No. 2
(remote I/O station)
Tracking cable
QJ72LP25-25
QJ71C24N
The GOT monitors
the control system
PLC CPU.
When an error occurs in System A, System B switches from standby system to control system.
Monitor target
MELSECNET/H remote I/O network
CPU direct
connection
GOT
Station No. 0
(Multiplexed remote master station)
Standby
system
(System A)
Q25PRHCPU
QJ71LP21-25
QJ71BR1
1
QJ71E71-100
QJ61BT1
1N
Station No. 1
(Multiplexed remote sub master station)
Q25PRHCPU
QJ71LP21-25
QJ71BR1
1
QJ71E71-100
QJ61BT1
1N
Station No. 2
(remote I/O station)
Tracking cable
QJ72LP25-25
QJ71C24N
The GOT monitors the PLC CPU
of the new control system after
system switching.
Empty
Empty
Power supply
module
Power supply
module
Empty
Empty
Power supply
module
Power supply
module
Empty
Empty
Power supply
module
Empty
Empty
Power supply
module
Control
system
(System A)
Control
system
(System B)
Summary of Contents for GT15
Page 2: ......
Page 34: ...A 32 ...
Page 92: ......
Page 110: ...2 18 2 DEVICE RANGE THAT CAN BE SET 2 9 MELSEC WS ...
Page 186: ...5 10 5 BUS CONNECTION 5 2 System Configuration ...
Page 218: ...5 42 5 BUS CONNECTION 5 4 Precautions ...
Page 254: ...6 36 6 DIRECT CONNECTION TO CPU 6 6 Precautions ...
Page 286: ...7 32 7 COMPUTER LINK CONNECTION 7 6 Precautions ...
Page 350: ...8 64 8 ETHERNET CONNECTION 8 5 Precautions ...
Page 368: ...9 18 9 MELSECNET H CONNECTION PLC TO PLC NETWORK 9 5 Precautions ...
Page 420: ...11 26 11 CC Link IE CONTROLLER NETWORK CONNECTION 11 5 Precautions ...
Page 440: ...12 20 12 CC Link IE FIELD NETWORK CONNECTION 12 5 Precautions ...
Page 490: ...13 50 13 CC Link CONNECTION INTELLIGENT DEVICE STATION 13 5 Precautions ...
Page 510: ......
Page 564: ...15 54 15 INVERTER CONNECTION 15 7 Precautions ...
Page 668: ......
Page 712: ...21 12 21 MULTIPLE GT14 GT12 GT11 GT10 CONNECTION FUNCTION 21 5 Precautions ...
Page 713: ...MULTI CHANNEL FUNCTION 22 MULTI CHANNEL FUNCTION 22 1 ...
Page 714: ......
Page 760: ...22 46 22 MULTI CHANNEL FUNCTION 22 5 Multi channel Function Check Sheet ...
Page 761: ...FA TRANSPARENT FUNCTION 23 FA TRANSPARENT FUNCTION 23 1 ...
Page 762: ......
Page 860: ...REVISIONS 4 ...
Page 863: ......