Mitsubishi Electric MELSEC iQ-R Series User Manual page 59

■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 local or remote station with a communication speed
of 100Mbps exist in the structure, set "Communication Period Setting" to "Low-Speed" for the local or remote station with a
communication speed of 100Mbps.
No.0 No.1
Class B (1Gbps) Class B (1Gbps)
No.0: Master station
No.1: Local station
No.2, No.3, and No.4: Remote station
Class A: CC-Link IE TSN Class A device
Class B: CC-Link IE TSN Class B device
• When the communication speed of the master station is 1Gbps, a connection cannot be established if the total cyclic data
size of 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
Class B (1Gbps) Class B (1Gbps)
No.2
Class B (1Gbps)
TSN HUB
No.0: Master station
No.1, No.2: Local station
No.3 to No.10: Remote station
Class A: CC-Link IE TSN Class A device
Class B: CC-Link IE TSN Class B device
 Set the total cyclic data size within 2K bytes.
■Ring topology
Ring topology is not possible with "Mixture of CC-Link IE TSN Class B/A or CC-Link IE TSN Class A Only" system
configuration.
No.2
Class A (100Mbps)
Low speed
No.3 No.4
Class B (1Gbps) Class B (1Gbps)
No.5 No.6 No.7
Class A Class A Class A
(100Mbps) (100Mbps) (100Mbps)
5.2 Structure with CC-Link IE TSN Class B/A Devices
No.3
Class A (100Mbps)
No.4
Class A (100Mbps)
Low speed
Ò
No.8
Class B
(100Mbps)
TSN HUB
No.9
Class B
(100Mbps)
No.10
Class B
(100Mbps)
5 SYSTEM CONFIGURATION (RJ71GN11-T2)
Low speed
5
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