Communications processor CP ; 343-1 for connection of SIMATIC ; S7-300 to Industrial Ethernet ; via ISO and TCP/IP, PROFINET IO ; controller or PROFINET IO ; device, integrated 2-port ; switch ERTEC 200, S7 ; communication, fetch/write, ; send/receive with and without ; RFC1006, Multicast DHCP, NTC- ; CPU Sync, diagnostic, ; initialization via LAN, 2x RJ45 ; connection for LAN with 10/100 ; Mbit/s ;