Beckhoff FC1028 Manual page 23

1. Activate the distributed clocks for all EtherCAT masters that you want to synchronize with each other
(see: Enabling Distributed Clocks [} 19]).
2. Activate a reference clock for each of these EtherCAT masters.
3. Click at the first EtherCAT master on the left side in the tree view on the EtherCAT master and then
under the EtherCAT tab on the button Advanced Settings.
4. Deactivate the Automatic DC Mode Selection option.
5. Activate the option DC in use in Distributed Clocks and additionally the option DC Time controlled by
CCAT Time (Master Mode)
All following EtherCAT masters are synchronized with this EtherCAT master.
FC1028 Version: 1.0
TwinCAT configuration
23