EK9300 Profinet IO bus coupler lets a Profinet controller exchange data with one or more EtherCAT, Profinet and Profibus systems as a flexible gateway for real-time communication between the networks. The unit converts messages from Profinet IO to the EtherCAT E-Bus signal. One IO station consists of an EK9300 bus coupler and any number of EtherCAT terminals. The coupler supports the Profinet RT protocol for use with Profinet IO networks.