Mitsubishi Electric MELSEC iQ-F FX5 Series User Manual page 84

■Coexistence of line and star topologies
Line and star topologies can be mixed according to the availability of connection as described below.
• Configure the number of the CC-Link IE TSN Class B device stations and TSN switching hubs to eight or less in total on the
transmission path from the master station to the CC-Link IE TSN Class B device of the end.
• When connecting CC-Link IE TSN Class A devices, they must be connected to the end side of a CC-Link IE TSN Class B
device or to a TSN switching hub. In this case, a star topology is also possible by using a TSN switching hub or general-
purpose switching hub.
No.0
Class B
No.0: Master station
No.1: Remote station (1st station)
No.3, No.7: Remote station (8th station)
No.2, No.4, No.5, No.6: Remote station
Class A: CC-Link IE TSN Class A device
Class B: CC-Link IE TSN Class B device
• Connection cannot be made if the total cyclic data size of all device stations on the CC-Link IE TSN Class A device side
that form a boundary between CC-Link IE TSN Class B and CC-Link IE TSN Class A devices exceeds 2K bytes.
No.0
Class B
No.0: Master station
No.1, No.2, No.3, No.4, No.5, and No.6: 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.
4 SYSTEM CONFIGURATION
82
4.4 Structure of CC-Link IE TSN Class B/A Devices (CC-Link IE TSN Protocol version 1.0 Only) and Ethernet Devices
No.1
TSN
Class B
switching hub
No.2
No.1
Class B Class B
No.3
No.2
Class B
Class B
... ...
... ...
No.6
Class B
General-purpose
No.3
switching hub
Class B
General-purpose
switching hub
No.7
Class B
Ò
No.4
Class A
No.5
Class A
No.6
Class A Class A
No.4
Class A
No.5
Class A