Siemens 6GK7443-1EX30-0XE0 Profibus DP Interface

Siemens CP 443-1 communications processor, model 6GK7443-1EX30-0XE0, extends SIMATIC S7-400 networking with two 10/100 Mbit/s Ethernet interfaces (RJ45) and multi‑protocol support. It functions as a PROFINET IO controller and provides S7 communications, Open Communication (SEND/RECEIVE), and S7 routing, with IP configuration available via DHCP or static parameters and IP access lists for security; PROFIenergy support, extended web diagnostics, time‑of‑day synchronization, and Fast Startup streamline management. The module draws 5 V DC from the backplane at roughly 1.4 A (about 7.25 W) and is designed for industrial environments, delivering flexible network connectivity for PLCs, drives, and I/O stations. Siemens notes this model was superseded by 6GK7443-1EX31-0XE0, but the 6GK7443-1EX30-0XE0 remains a capable CP 443-1 expansion for PROFINET and S7 communications.