Functions For Improving System Reliability; Disconnecting Data Link Faulty Stations And Continuing The Data Link With Only Normal Stations; (Slave Station Cut-Off Function) - Mitsubishi MELSEC Q Series User Manual

4 FUNCTIONS

4.3 Functions for Improving System Reliability

4.3.1 Disconnecting data link faulty stations and continuing the data link with only normal
stations (Slave station cut-off function)
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This section explains the functions for improving the reliability of the CC-Link system.
This function disconnects remote stations, local stations, intelligent device stations,
and a standby master station that have become data link faulty due to power off, and
continues the data link among normal remote stations, local stations, intelligent device
stations, and standby master station (no setting is required).
Master
station
Terminal
resistor
POINT
In the event of cable disconnection, the data link cannot be performed because
there is no terminal resistor ("ERR." LED lights up).
Master
station
Terminal
resistor
Down
Remote Remote
station station
Continues data link excluding faulty stations.
Remote Remote
station station
Disconnection
MELSEC-Q
Local Local
station station
Terminal
resistor
Local Local
station station
Terminal
resistor
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