Communications Processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet; TCP/IP, ISO, UDP, S7communication, security (VPN, firewall), SNMPv1/v3, DHCP, FTP client/server, e-mail, IPv4/IPv6, IEEE 802.1X (radius), time-of-day synchro- nization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbit/s).