The EtherCAT technology enables the realization of cable redundancy. For this purpose, an additional cable connection is established from the last EtherCAT slave to the master. In the event of a cable breakage, the telegrams are sent seamlessly via the alternative connection. TwinCAT EtherCAT Redundancy 250 extends the TwinCAT EtherCAT master by the option of realizing cable redundancy for up to 250 EtherCAT devices (slaves); TwinCAT EtherCAT Redundancy 250+ (TF6221) is designed for more than 250 EtherCAT devices. Configuration and diagnosis take place in the TwinCAT?3 engineering environment. Download note: Please license only, it is included in the installation of TwinCAT?3.1 - eXtended Automation Engineering (XAE).