Beckhoff FC1028 Manual page 15

5. Create additional or required EtherCAT masters in TwinCAT in this way.
ð You can start project planning at this point. As soon as the complete hardware configuration is available,
you can scan each EtherCAT master and thus start the search for the EtherCAT slaves connected to it.
The EtherCAT slaves are created in TwinCAT according to your hardware configuration and the cabling
under the respective EtherCAT masters.
FC1028 Version: 1.0
TwinCAT configuration
15