The MO6021-0000-1112 provides an RS422 or RS485 interface and guarantees excellent immunity to interference through electrically isolated signals. The active communication channel operates independently of the higher-level EtherCAT system in full duplex mode. In conjunction with the TwinCAT Virtual Serial COM Driver, the module can be used as a normal Windows COM interface. The signal state is shown on the display; the signal interface is established via a screw-type M12 connector.