SIPLUS CP 1543-1 -40 to 60 deg C start up -25 deg C with conformal coating based on 6GK7543-1AX00-0XE0 communications processor for connecting SIMATIC S7-1500 to Industrial Ethernet: TCP/IP, ISO, UDP, S7 communication, IP-BROADCAST/ MULTICAST, security (hardware identification, IP/MAC access list, firewall), diagnostics SNMPV1/V3, DHCP, FTP client/ server, Email, IPV4/IPV6, data storage on SD Card of the CPU, time-of-day synchronization via NTP, access to the "Web server" of the CPU; Gigabit interface 1x RJ45 (10/100/1000 MB).