Structure Of Multicast Mode - Mitsubishi Electric MELSEC iQ-R Series User Manual

Structure of multicast mode

This mode indicates the availability of connection with a network configuration device when "Communication Mode" under
"Application Settings" is set to "Multicast".
When the communication speed for the master station is set to 1Gbps
This mode indicates the availability of connection with a network configuration device when "Communication Speed" of the
master station is set to "1Gbps".
: Connection available, : Connection available via a switching hub, : Connection not available
S: TSN hub available
H: General-purpose hub available
Device on the master station
side
(The side near the master
station)
Master station 1Gbps
(CC-Link IE TSN
Class B device)
Local station 1Gbps
(CC-Link IE TSN
100Mbps
Class B device)
Remote station 1Gbps
(CC-Link IE TSN
100Mbps
Class B device)
*1 For a slave station with a communication speed of 100Mbps, set "Communication Period Setting" to "Low-Speed" (16 times).
*2 When the device is connected on the end side via the switching hub as shown below, communication may not be possible depending on
the type of the device.
The communication will be enabled by configuring settings with the switching 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 ports specified below.
Connection structure that cannot be communicated
Slave stations with different communication speeds of 1Gbps and 100Mbps
coexist.
A local station and Ethernet device coexist.
The remote station and Ethernet device coexist.
*3 A connection cannot be established if the total cyclic data size of all slave stations on the 100Mbps device side exceeds 2K bytes for
devices that form a boundary between the communication speed of 1Gbps and 100Mbps. ( Page 56 Calculation of the total cyclic
data size)
*4 For a local station or remote station of a device on the master station side, use a device supporting the multicast filter. For more
information regarding support for the multicast filter, refer to the manual for each device to be used.
*5 If the device on the master station side is a CC-Link IE TSN Plus module, only P1 can be connected.
*6 If the device on the end side is a CC-Link IE TSN Plus module, only P1 can be connected.
*7 If the device on the master station side is a CC-Link IE TSN Plus module, P2 can be connected without passing through a switching hub.
*8 Connection is not possible if the device on the master station side is a CC-Link IE TSN Plus module.
*9 If the device on the master station side is a CC-Link IE TSN Plus module, only P2 can be connected.
■Precautions
When a TSN hub is used, check the TSN hub specifications on the CC-Link Partner Association website (www.cc-link.org).
Device on the end side (The side far from the master station)
Local station (CC-Link IE TSN
Class B device)
1Gbps 100Mbps
*2*5*6
S 
*2*6*8
S 
 
*2*6
S 
 
2.1 Structure of CC-Link IE TSN Class B Devices and Ethernet Devices
Remote station (CC-Link IE
TSN Class B device)
1Gbps 100Mbps
*2*5 *1*2*5
S S
*2*8 *1*2*3*4*8
S S
 
*2 *1*2*3*4
S S
*1*2*3
 S
Port that prohibits multicast frame transfer
Connection port of the slave station with 100Mbps
Connection port of the Ethernet device
2 CC-Link IE TSN SYSTEM CONFIGURATION
Ethernet device
1Gbps 100Mbps
*2 *2*7
SH SH
*2*4*9 *2*4*7*9
SH SH
 
*2*4 *2*4
SH SH
*2*4
 SH
2
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