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(5) Use of a safety station
When using the submaster function, do not use a safety station, such as the QS0J71GF11-T2, for a slave station.
When the control is switched between a master station and a submaster station, an error may occur in safety
communications.
(6) CC-Link IE Field Network diagnostics
Connecting the master operating station to GX Works2 allows that the status of the entire network can be
checked. If the status of the slave station or submaster station cannot be checked due to a cable disconnection
and other reasons, directly connect the slave station or submaster station to a programming tool that supports
these stations.
(7) Temporary error invalid station setting in the submaster station
Do not set the temporary error invalid station setting in the submaster station operating as a master operating
station. The setting is ignored.
(8) Return of the master station with the submaster station being disconnected
Even if "Return as Sub-Master Station" is selected in the "Operation Setting for Returning" field on the
"Supplementary Setting" window, the master station returns as a master operating station.
(9) If a system is divided into two systems due to a cable disconnection and other
reasons
If disconnection occurs as follows, the submaster station operates as a master operating station.
When disconnection is solved (the systems are joined into one system), the system of the submaster station is
absorbed into that of the master station. Continuity of output data is not guaranteed in the slave station on the
submaster station side.
Master station
Slave station
Slave station
Submaster station
System of the submaster station
System of the master station
Disconnected
Recovered
Master operation
Master operation
Master station
Slave station
Slave station
The master station starts to take in control.
Submaster station
Submaster
operation
Master operation