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APP - 31 APP - 31
MELSOFT
A
PPENDICES
(b) Connection to MELSECNET/H, Ethernet or CC-Link IE
Controller Network
Access to the control system after system switching is continued as shown
below, depending on whether a communication error occurs or not.
The following shows an example of Ethernet connection.
<When communication is normal>
Control system
MX Component
Tracking cable
Ethernet
Standby system
Standby system
MX Component
Tracking cable
Control system
Connection to control system via standby system
Connection to control system
Connection to control system
<When communication error occurs>
Control system
MX Component
Tracking cable
Ethernet
Standby system
Standby system
MX Component
Tracking cable
Control system
Communication
error
Connection to control system via network
Connection to control system
Connection to control system
POINT
In the case of Ethernet connection, it may take time from when a communication
error occurs until communication starts after connection to the control system.