The real-time EtherCAT technology, widely used in machines and motion control applications. Outstanding performance, flexible topology and simple configuration characterize EtherCAT, the real-time Ethernet technology, which is the expansion of IEEE 802.3 as part of IEC 61158. EtherCAT sets new standards where conventional fieldbus systems reach their limits: 1,000 distributed I/Os in 30 μs, almost unlimited network size, and optimum vertical integration thanks to Ethernet and internet technologies. With EtherCAT, the costly Ethernet star topology can be replaced with a simple line or tree structure – no expensive infrastructure components are required. All types of Ethernet devices can be integrated via a switch or switch port. Where other real-time Ethernet approaches require special master or scanner cards, EtherCAT manages with very cost effective standard Ethernet interface cards.