Communications processor CP 1545-1 for connection of SIMATIC S7-1500 to Industrial Ethernet, TCP/IP, UDP, S7 communication, Security (firewall), SNMPv1/v3, DHCP, FTP client/server, email, IPv4/IPv6, time-of-day synchronization via NTP, connection to cloud systems via MQTT, 1x RJ45 (10/100/1000 Mbit/s).