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
H: General-purpose hub available
Device on the master
station side
(A device near the
master station)
Master station 1Gbps
(Authentication
Class B device)
Local station 1Gbps
(Authentication
100Mbps
Class B device)
Remote station 1Gbps
(Authentication
100Mbps
Class B device)
Local station 1Gbps
(Authentication
100Mbps
Class A device)
Remote station 1Gbps
(Authentication
100Mbps
Class A device)
*1 For a slave station with a communication speed of 100Mbps, set "Communication Period Setting" to "Low-Speed".
*2 Slave stations with different communication speeds of 1Gbps and 100Mbps cannot be connected on the end side via the switching hub.
*3 A connection cannot be established if the total cyclic data size of all slave stations on the authentication Class A device side that form a
boundary between authentication Class B and authentication Class A exceeds 2K bytes. ( Page 55 Calculation of the total cyclic
data size)
*4 Since cyclic data is sent to an Ethernet device when a local station is used with an Ethernet device on the end side via a switching hub,
communication may not be possible depending on the type of an Ethernet device.
*5 Since cyclic data is sent to an authentication Class A remote station when a local station is used with an authentication Class A remote
station on the end side via a switching hub, communication may not be possible depending on the type of the authentication Class A
remote station.
*6 Since cyclic data is sent to the Ethernet device when the Ethernet device is connected to the master station, communication may not be
possible depending on the type of the Ethernet device.
*7 Since cyclic data is sent to an authentication Class A remote station when the master station is connected to an authentication Class A
remote station, communication may not be possible depending on the type of the authentication Class A remote station.
*8 Only one of P1 and P2 of the master station can be used. (To use both P1 and P2 of the master station, connect a multicast filter
supported local station or remote station as a device on the master station side.)
*9 For a local station or remote station of a device on the master station side, use a multicast filter supported device. ( Manual for the
device used)
Precautions
When a TSN hub is used, check the TSN hub specifications on the CC-Link Partner Association website (www.cc-link.org).
5 SYSTEM CONFIGURATION
42
5.2 Structure of Authentication Class B/A Devices and Ethernet Devices
Device on the end side (A device far from the master station)
Local station Remote station
(Authentication (Authentication
Class B device) Class B device)
1Gbps 100Mbps 1Gbps
  
  
  
  
  
  
  
  
  
Local station
(Authentication
Class A device)
100Mbps 1Gbps 100Mbps
*2*3
 H 
*2*3
 H 
  
*2*3
 H 
  
*2*3
 H 
  
  
  
Remote station Ethernet device
(Authentication Class
A device)
1Gbps 100Mbps 1Gbps
*2*5*7 *1*2*5*7*8
H H H
*2*3*5*9 *1*2*3*5*9
H H H
  
*2*3*5*9 *1*2*3*5*9
H H H
  
*2*3*5*9 *1*2*3*5*9
H H H
  
*2*3*5 *1*2*3*5
H H H
*1*2*3*5
 H 
100Mbps
*4*6 *4*6*8
H
*4*9 *4*9
H

*4*9 *4*9
H

*4*9 *4*9
H

*4 *4
H
*4
H