Siemens 6GK7443-1EX11-0XE0 Communications Processor

The Siemens 6GK7443-1EX11-0XE0 Communications Processor is a CP443-1 module designed to connect SIMATIC S7-400 controllers to Industrial Ethernet. It provides two 10/100 Mbit/s RJ45 Ethernet interfaces (an IE switch) for ISO/TCP/IP and UDP traffic, and supports RFC1006, S7 communications, and Open Communications (SEND/RECEIVE) with S7 routing between networked devices. Configuration and management features include IP configuration via DHCP or static addressing, an IP access control list, time synchronization, extended web diagnostics, and fast startup, with PROFIenergy support available on CP443-1 variants. Slotting into the S7-400 rack, this module serves as a dedicated network interface and gateway for industrial Ethernet communications, enabling reliable RFC1006/S7 connectivity, remote diagnostics, and integrated network management for automation architectures that rely on the CP443-1 family.