Mitsubishi FX2N-16CCL-M, User Manual

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FX2N-16CCL-M CC-Link System Master Block Functions 5
5-21
5.11.3 Station number overlap check function
This function checks the status of actually connected stations when the write request for data
link start is given (when BFM#A
H
b6/b8 is set to ON), and checks whether the assigned station
numbers overlap.
Example:
Remote device station (station No. 1 occupying 4 stations)
Remote device station (station No. 4 occupying 2 stations)
However, if the starting head number overlaps, it is not
regarded as an overlap check target.
Example:
Remote device station (station No. 1 occupying 4 stations)
Remote device station (station No. 1 occupying 2 stations)
1) When there is an overlap, the M/S LED flashes and the overlap status is stored in SW0098.
2) Even if overlap exists, data link can be continued with other normally functioning stations.
3) When the switch setting is corrected to the normal status and the write request for data link
startup is given again (BFM#A
H
b6/b8 is set to ON), the M/S LED turns off and the data
stored in SW0098 is cleared.
Station
No. 1
Station
No. 2
Station
No. 3
Station
No. 4
Station
No. 4
Station
No. 5
Overlap
Station
No. 1
Station
No. 2
Station
No. 3
Station
No. 4
Overlap
at head
Station
No. 1
Station
No. 2