Mitsubishi Electric GT1685 Connection Manual page 133

POINT POINT POINT
Connection between GT11, GT10 and head module of CC-Link IE Field Network
GT11, GT10 can not access the master station on CC-Link IE Field Network.
GT11, GT10 can access only the connected host station (head module).
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Restrictions on connection to head module
The GOT does not allow the clock of the master station to be set in the clock setting of the utility function.
The master station clock will not change even if the clock setting is made.
Use GX Works or similar software to set the PLC CPU clock of the master station.
3.7 Connection to the Head Module of CC-Link IE Field Network System
3. ACCESS RANGE FOR MONITORING
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