Chapter 6 System Configuration (Rj71Gn11-Sx) - Mitsubishi Electric MELSEC iQ-R Series User Manual

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SYSTEM CONFIGURATION (RJ71GN11-SX)
The RJ71GN11-SX uses an optical fiber cable for ring topology. (Page 69 Optical Fiber Cables)
No.0
No.0: Master station
No.1, No.2: Local station
Unicast mode and multicast mode
Cyclic transmission differs depending on the communication mode set by the module parameter of the master station. The
communication modes are as follows:
• Unicast mode
• Multicast mode
For details, refer to the following.
 MELSEC iQ-R CC-Link IE TSN User's Manual (Application)
Ring topology limitations
"Network Topology" in "Basic Settings" is fixed to "Ring". The following table lists the operations when the setting and the
actual connection status are different.
Actual connection status
Line topology
Star topology
Coexistence of line and star
topologies
Ring topology
Devices connected to the same network
Do not connect the devices as described below. All stations in the network may be disconnected.
• Connection of devices with different network types (such as CC-Link IE Controller Network) to the same network
• Connection using a switching hub
No.1 No.2
Communication speed
Mixture of different
communication speeds
Same communication speed
used by all stations


Mixture of different
communication speeds
Same communication speed
used by all stations
Operation
A data link is not performed.
A data link is performed in a state in which a loopback station is available.
A data link is not performed.
Normal operation
6 SYSTEM CONFIGURATION (RJ71GN11-SX)
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