5 SYSTEM CONFIGURATION
5.1 Structure of CC-Link IE TSN Class B Devices and Ethernet Devices
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• When "Communication Mode" is set to "Multicast" and "Communication Speed" of the master station is set to "1Gbps",
communication may not be possible depending on the type of the device if device stations with different communication
speeds of 1Gbps and 100Mbps coexist on the end side via the industrial switch. The communication will be enabled by
configuring settings with the industrial switch (for CC-Link IE TSN Class B) so that the multicast frame (with multicast MAC
address 09:00:70:00:10:02 and 09:00:70:00:10:05) will not be transferred to the device station with 100Mbps.
Coexistence of line and star topologies
Line and star topologies can be mixed in the same network configuration.
• When the master station with a communication speed of 1Gbps and a remote station with a communication speed of
100Mbps exist in the structure, set "Communication Period Setting" to "Low-Speed" for the remote station with a
communication speed of 100Mbps.
No.0: Master station
No.1, No.2: Remote station
No.3: Local station
No.0: Master station
No.1: Local station
No.2, No.3: Remote station
No.0 (1Gbps)
No.1
(100Mbps)
No.2 (100Mbps)
No.3
(1Gbps)
Industrial switch
(for CC-Link IE
TSN Class B)
No.0 (1Gbps) No.1 (1Gbps) No.2 (100Mbps) No.3 (100Mbps)
No.0 (1Gbps) No.1 (1Gbps) No.2 (100Mbps) No.3 (100Mbps)
Low speed Low speed
Low speed Basic cycle
Industrial switch
(for CC-Link IE
TSN Class B)
Industrial switch
(for CC-Link IE
TSN Class B)
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