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8.5 Error Invalid Station and Temporary Error Invalid Station
Setting Function
When a slave station is set as an error invalid station, even if it is disconnected from the network during data link, the
master station will not detect it as faulty station.
Furthermore, by the temporary error invalid station setting function, a slave station can be temporarily set as an error
invalid station without changing the GX Developer setting each time.
(1) Error invalid station setting
A slave station can be set as an error invalid station in Network Configuration Setting.
( Page 81, Section 7.3)
(2) Temporary error invalid station
This function is useful for various operations such as replacing a slave station during data link by temporarily
setting it as an error invalid station. For details, refer to Page 146, Section 9.7.
● This cannot be performed when the safety CPU operation mode is on the safety mode.
● When the local station (safety station) is set as an error invalid station or a temporary error invalid station also, if the local
station (safety station) gets disconnected, safety communication with the disconnected station fails.
Select "Invalid Station".
Network Configuration Setting
Master station
(safety station)
(Station No. 0)
Error invalid station
Slave station
(Station No. 1)
Slave station
(Station No. 2)
No data link error will be detected on
this station even in the case of
an error or power OFF.
Slave station
(Station No. 3)