Mitsubishi Electric MELSEC-Q Series User Manual page 53

(2) Network configuration
(a)
Switching hub
Star topology
Star and line mixed
Switching hub
Ring topology
Network topology
The network can be wired into star topology or line topology.
A network can consist of a combination of star and line topologies. The Simple
Motion module does not support the ring topology.
Ring topology is not supported.
Item
The network is configured into a star using a switching hub and Ethernet
cables. Slave stations can be easily added to the network using this topology.
Star topology
Data link continues with the stations that are operating normally.
Use the recommended product for the switching hub.
The network is configured into a line by connecting the modules with Ethernet
cables, but without a switching hub. If an error occurs, stations after the faulty
station will be disconnected.
Line topology
(Note-1): Add slave stations one by one. If multiple slave stations are added at a time, all stations on the
network will be reconnected, and an error may momentarily occur in all the stations.
Chapter 5 SYSTEM CONFIGURATION
Line topology
Line topology
Master station (Station No.0)
5 - 3
Switching hub
Description
(Note-1)
Stations after the faulty station are disconnected.
Fault
(Note-1)