4.1.3Ethernet connection (Connection to Ethernet module mounted on remote I/O station)
This section explains the Ethernet connection for connecting the GOT to the Ethernet module mounted on the remote I/ O station of the MELSECNET/H network system.
The following shows an example of connecting the GOT to the Ethernet module mounted on the I/O station of the MELESCNET/H network system.
Monitor target
| module | supplyPower | |
Control system | |||
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(System A) |
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Network No. 1, Station No. 0 (Multiplexed remote master station)
Q25PRHCPU | QJ71BR11 | QJ61BT11N | Empty | supply Power module | Q25PRHCPU |
Network No. 1, Station No. 1 (Multiplexed remote sub master station)
QJ71BR11 | QJ61BT11N | Empty |
Standby system (System B)
MELSECNET/H remote I/O network
supplyPower module | Empty | Empty |
Network No. 1, Station No. 2 (remote I/O station)
Network No. 2, Station No. 2
Ethernet
Network No. 2, Station No. 3
GOT
(1)Connection method
Connect the GOT to the Ethernet module
For details, refer to the following.
(2)GT Designer3 setting
Set GT Designer3 as follows.
Setting item | Settings | Model | |
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Controller Type |
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Device setting | Other station | Other (NW No. 1 (network No. of remote I/O network), |
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(Network setting) | Station No. 0 (master station)) |
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Q Redundant Setting |
| Do not set the item. |
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Routing Information Setting |
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(3)Monitoring target change when system switching occurs in a redundant system
When the system switching occurs, the multiplexed remote sub master station switched to the control system takes over the master operation of MELSECNET/H.
Since the GOT monitors the master station, the monitoring target is automatically changed to the PLC CPU that is operating as the master.
4 - 10 | 4. HOW TO MONITOR REDUNTANT SYSTEM |
| 4.1 Connection to Remote I/O Station in MELSECNET/H Network System |