Mitsubishi Electric MELSEC Q Series Reference Manual page 557

(2) Adding station to a network
(a) When a programming tool connected station is normally operating
Control
station Selected Normal station
No.1 station No.2
Added station
Normal station Normal station
No.3 No.3
(b) When a programming tool connected station is faulty
Control station Normal station
No.1 No.2
Added station
Normal Normal station
Selected
station station No.3
No.3
Select the own station.
Multiple stations with the station No.3 are displayed, indicating that the same
station No. is used for multiple stations. Change the station No.
Select the own station.
Stations equivalent to the maximum number of stations that can be connected
are displayed due to a parameter error.
An error has occurred in the station No.3.
Click the error details button.
The Error Factor field indicates that the station No.3 is already used.
Take corrective actions according to the troubleshooting.
CHAPTER 10 TROUBLESHOOTING
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