Siemens 6GK7443-1EX20-0XE0 Communications Processor

Siemens 6GK7443-1EX20-0XE0 is a CP 443-1 communications processor designed to interface SIMATIC S7-400 controllers with Industrial Ethernet networks. It provides two 10/100 Mbit/s RJ45 interfaces with an integrated ERTEC 400 real-time switch, enabling ISO, TCP/IP and UDP traffic, S7 communication, and Open Communication (SEND/RECEIVE) alongside S7 routing for distributed architectures. IP configuration is available through DHCP or block configuration, and an IP access control list helps manage security; time-of-day synchronization and extended web diagnostics are supported for administration. The module is powered from the backplane at 5 V, drawing about 1.4 A and dissipating roughly 8.6 W, and it is rated for 0 to 60 C ambient operation with up to 95% relative humidity (non-condensing), making it suitable for rugged industrial environments.