Mitsubishi Electric MELSEC-Q Series - Page 62

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(2) Link device behavior when there is a faulty station
(a) Normally operating station
Holds the data received from the faulty station immediately before the error.
(b) Faulty station
Holds the data received from the other stations immediately before the error.
Control station
No.1
Normal station
No.2
Normal station
No.3
LB/LW
No.1
receive range
No.2
send range
No.3
receive range
No.1
receive range
No.2
receive range
No.3
send range
Faulty
station
Data transferred
Data held
No.1
send range
No.2
receive range
No.3
receive range