Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual page 238

In the following cases, the network map that is different from the actual system configuration is displayed.
System configuration
Two stations are connected through a switching hub.
Engineering tool
Master station
(station No.0)
Switching hubs are in cascade connection.
Engineering tool Master station
(station No.0)
4 TROUBLESHOOTING
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4.3 Checking the Network Status
Switching hub
Switching hub
Intelligent device Intelligent device
station (station No.1) station (station No.2)
Intelligent device
station (station No.3)
Intelligent device station
(station No.1)
Switching hub
Intelligent device
station (station No.4)
Display of the network map
Branches are not displayed in the network map.
Only one branch is displayed.