COMMUNICATIONS PROCESSOR CP443-1 IT FOR CONNECTION OF SIMATIC S7-400 W. IND. ETHERN. ISO/TCP/IP,S7 COMM FETCH/WRITE, DIAG. EXPANSIONS SEND/RECEIVE, WITH AND W/O RFC, MULTICAST, NTP, INITIALIZING THROUGH LAN, FTP CLIENT, WWW, E-MAIL, 10/100 MBIT