Lenze EtherCAT control technology - Manual (Page 40)

Control technology | EtherCAT communication manual
Synchronisation with "Distributed clocks"
Setting the DC synchronisation with the »EtherCAT Configurator«
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DMS 3.1 EN 01/2011 TD17
2. Activate the DC functionality for the first slave (DC master) connected to the bus
master (select "DC for synchronization"):
3. Also activate the DC functionality (select "DC for synchronization") for all other
slave devices which are to use the DC synchronisation.
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Note!
Maintain all other basic DC settings for the slaves to ensure a correct DC
synchronisation.