Siemens 6GK7443-1EX20-0XE0 CP 443-1 Ethernet Module

Siemens CP 443-1 Ethernet Communications Processor, 6GK7443-1EX20-0XE0, is a compact single-width module that connects a SIMATIC S7-400 to Industrial Ethernet. It provides two 10/100 Mbit/s RJ45 ports backed by an ERTEC 400 real‑time switch, enabling ISO on Ethernet, TCP/IP and UDP communications, S7 fetch/write and SEND/RECEIVE (RFC1006 capable) with multicast, PROFINET IO Controller functionality, and IP configuration via DHCP or static addressing, along with SNMP v2, web diagnostics, LAN‑based initialization, and IP access lists. The device is powered from the backplane via a 5 V DC supply (typical 1.4 A, about 8.6 W) and is housed as a compact CP 443‑1 module rated for 0 to 60 °C operation, up to 95% relative humidity (non‑condensing), with IP20 protection. Designed for S7‑400 systems, this CP 443‑1 supports S7 communication and Open Communications (SEND/RECEIVE), S7 routing, and provides reliable industrial Ethernet connectivity through its two Ethernet interfaces.