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7 DATA LINK PROCEDURE
MELSEC-QnA
(2) Do not skip station numbers.
The skipped station number is treated as a "data-link faulty station (link special
register SW0080 to 0083: can be checked with buffer memory address 680
H to
683
H)".
However, by setting as a reserved station, the station number will not be treated
as a data-link faulty station.
[Setting example] When a station number is skipped:
Remote station
1
Remote station
2
Local station
3
Local station
4
Station No.1
Station No.2
Station No.3
Station No.4
Station No.5 Station No.6
Station No.7
Station No.8 Station No.9
Data link faulty station (When set as a reserved,
the station number will not be treated as a faulty station.)
1
Remote station
(occupies 1 station)
2
Remote station
(occupies 2 stations)
Master station
Station
number "0"
Station
number "1"
Station
number "2"
Station
number "5"
Station
number "9"
3
Local station
(occupies 4
stations)
4
Local station
(occupies 1
station)