Mitsubishi Electric Q80BD-J61BT11N, User Manual

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MELSEC
4 FUNCTIONS
4.4.2 Powering off a station in operation without detecting an error (error invalid station
setting function)
By setting network parameter, this function prevents any of the remote stations, local
stations, intelligent device stations and standby master station that is powered off in
the system configuration from being treated as a "data link faulty station" by the master
and local stations.
Note that if a station is set as an error invalid station, problems occurring in that station
can no longer be detected.
In addition, the error invalid station settings cannot be changed while online because
they are set with network parameters.
Master
station
Remote station
(occupies
2 stations)
Remote station
(occupies
1 station)
Local station
(occupies
1 station)
Remote station
(occupies
2 stations)
Local station
(occupies
4 stations)
Station number 1 Station number 3 Station number 5
Station number 4 Station number 7
Master
station
Remote station
(occupies
2 stations)
Remote station
(occupies
1 station)
Local station
(occupies
1 station)
Remote station
(occupies
2 stations)
Local station
(occupies
4 stations)
Station number 1 Station number 3 Station number 5
Station number 4 Station number 7
This station does not become data link faulty.
Stations to be set as error invalid stations
POINT
If any of the remote stations, local stations, intelligent device stations or standby
master station that has been specified as an error invalid station is also "specified
as a reserved station," the reserved station function overrides the error invalid
station setting function.
[Setting method]
The setting is performed at <<Parameter settings>> in the CC-Link Ver.2 utility.
Refer to Section 8.2.5 for setting details.