Beckhoff CU2508 Documentation page 38

Commissioning
Setting up EtherCAT cable redundancy
The EtherCAT configuration must be created on a CU2508 downlink port as described in the chapter "Setup:
Device EtherCAT [} 32]". The resulting topology can be displayed in the Device EtherCAT using the Topology
button; see fig. Display of a simple EtherCAT topology.
Fig. 47: Display of a simple EtherCAT topology
The items below are to be specified in the following steps
• the control-side redundancy adapter, in this case on the CU2508
• the field-side redundancy adapter on the last EtherCAT slave
The EtherCAT redundancy port is specified in Device -> EtherCAT -> Advanced Settings.
Fig. 48: Specification of the redundancy port
38 Version: 2.6 Real-time Ethernet port multiplier