communicationsprocessor cp443-1 for connecting simatic s7-400 to indust. ethern. via iso, tcp/ip and udp, s7-comm., fetch/write, send/rcv with and w/o rfc1006, multicast, profinet io- controller, dhcp, snmp v2, web-, diagnos., initialisation via lan, access protection via ip-access list, integrated real-time switch ertec 400, 2xrj45 connect. for lan with 10/100 mbit/s