Configuration of two ports for EtherCAT cable redundancy
This chapter shows the configuration for ports X01 and X02 as an example.
Further information on cable redundancy can be found on the TwinCAT 3 Function TF6220 website: Link.
- 1. Configure the first EtherCAT port as described in the chapter Configuration of a port as an EtherCAT port.
- 2. Select the EtherCAT device of the first EtherCAT port in the Solution Explorer and click on the “Advanced Settings…” button in the “EtherCAT” tab.
- 3. In the window that appears, click on the category “Redundancy”, activate “Adapter Reference” and select the redundancy port from the drop-down menu.
If the desired port is not available, you may need to increase the number of ports in the CU2508-0022 settings, see chapter Basic configuration.
Please note that only certain combinations of ports are possible for cable redundancy:
- X01 and X02
- X03 and X04
- X05 and X06
- X07 and X08
Distributed Clocks
The two ports are automatically configured as Reference Clocks for distributed clocks by activating cable redundancy. This ensures that synchronization can be maintained even in the event of a wire break.
See chapter Distributed Clocks.
Synchronization with an external time source is currently not possible for EtherCAT segments with cable redundancy.