The EK3100 Bus Coupler connects PROFIBUS networks to the EtherCAT Terminals (ELxxxx) as well as the EtherCAT Box modules (EPxxxx) and converts the telegrams from PROFIBUS to the E-bus signal representation. One station consists of an EK3100 and any number of EtherCAT Terminals. The coupler is connected to PROFIBUS via a 9-pin D-sub plug. In EtherCAT, the PROFIBUS coupler has at its disposal a lower-level, powerful and ultra-fast I/O system with a large selection of terminals. The coupler supports the PROFIBUS profile and fits seamlessly into PROFIBUS networks.