4 - 70
4.2 MELSEC Q Series
4.2.7
Ethernet Connection
This section explains the Ethernet connection that connects the GOT to the Ethernet network system.
The following shows an example of connecting the GOT to the Ethernet network.
■1.
Connection method
Connect the Ethernet network system to the GOT.
Set the Ethernet modules of System A and System B (including NW No., station No, and IP address) to the Ethernet
setting of the GOT side.
For details, refer to the following.
➠
■2.
GT Designer3 setting
Set GT Designer3 as follows.
To specify the station number which was set in the MELSEC redundant setting in the device setting, set the station
number as the other station.
■3.
Monitoring target change when system switching occurs in a redundant system
When system switching occurs, Ethernet module station No. 2 takes over the control of the Ethernet network system as
the control system.
Since the GOT monitors the control system, he monitoring target is automatically changed to the Ethernet module
station No. 2.
POINT
POINT
POINT
When monitoring control system without MELSEC redundant setting
When system switching occurs, Ethernet module station No. 2 takes over the control of the
Ethernet network system as the control system.
Since the GOT monitors the station of the specified station number, the monitoring target cannot
be changed to the station No. 2 in response to the system switching.
As a countermeasure, create a screen to monitor the PLC CPU of the control system by
switching the station numbers between System A and System B using the script function.
➠
4.2.9Switch the Monitor Target to the Control System Using the Script Function
Setting item
Settings
Model
Controller Type
MELSEC-QnA, MELDAS C6*
Device setting (Network setting)
Host
Host (The control system is monitored.)
Other
NW No.: Network No. of Ethernet
Station No.: Station number of the control system
MELSEC Redundant Setting
➠
Monitor target
MELSECNET/H remote I/O network
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GOT
Network No. 1, Station No. 1
Control
system
(System A)
Em
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Q25PRHCPU
QJ71LP21-25
QJ71BR1
1
QJ71E71-100
QJ61BT1
1N
Em
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Standby
system
(System B)
Q25PRHCPU
QJ71LP21-25
QJ71BR1
1
QJ71E71-100
QJ61BT1
1N
QJ72LP25-25
QJ71C24N
Network No. 1, Station No. 3
Network No. 1,
Station No. 2
Ethernet
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Summary of Contents for GOT2000 Series
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Page 84: ......
Page 432: ...6 58 6 6 Precautions ...
Page 578: ...9 54 9 6 Precautions ...
Page 726: ...12 84 12 5 Precautions ...
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Page 822: ...14 66 14 4 Device Range that Can Be Set ...
Page 918: ...15 96 15 7 Precautions ...
Page 930: ...16 12 16 6 Precautions ...
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Page 1002: ...19 38 19 7 Precautions ...
Page 1022: ...20 20 20 5 Precautions ...
Page 1023: ...MULTI CHANNEL FUNCTION 21 MULTI CHANNEL FUNCTION 21 1 ...
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Page 1054: ...21 30 21 5 Multi channel Function Check Sheet ...
Page 1055: ...FA TRANSPARENT FUNCTION 22 FA TRANSPARENT FUNCTION 22 1 ...
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