Mitsubishi Electric MELSEC iQ-R Series User Manual page 41

• 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 1Gbps and 100Mbps
coexist on the end side via the switching hub. The communication will be enabled by configuring settings with the TSN hub
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.
No.0 (1Gbps)
TSN HUB
No.1 (100Mbps)
No.0: Master station
No.1, No.2: Remote station
No.3: Local station
■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 (1Gbps) No.1 (1Gbps)
No.0: Master station
No.1: Local station
No.2, No.3: Remote station
• When the communication speed of the master station is 1Gbps, a connection cannot be established if the total cyclic data
size of all device stations on the 100Mbps device side exceeds 2K bytes. This includes the devices with a communication
speed of 100Mbps that form a boundary between the communication speed of 1Gbps and 100Mbps.
No.0 No.1
(1Gbps) (1Gbps)
No.2
(1Gbps)
TSN HUB
No.0: Master station
No.1, No.2: Local station
No.3, No.4, No.5, No.6, No.7, No.8, No.9, and No.10: Remote station
 Set the total cyclic data size within 2K bytes.
No.2 (100Mbps)
No.3 (1Gbps)
No.2 (100Mbps)
Low speed
TSN HUB
No.3 No.4
(1Gbps) (1Gbps)
Ò
No.5 No.6
(100Mbps) (100Mbps)
No.3 (100Mbps)
Low speed
Ò
TSN HUB
No.7
(100Mbps)
5 SYSTEM CONFIGURATION (RJ71GN11-T2)
5.1 Structure with CC-Link IE TSN Class B Devices Only
No.8
(100Mbps)
No.9
(100Mbps)
No.10
(100Mbps)
5
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