Siemens 6 GK7 343-1GX31-0XE0 Communication Processor

The Siemens CP 343-1 Advanced GX31 communications processor (order number 6GK7 343-1GX31-0XE0) enables a SIMATIC S7-300 CPU to join Industrial Ethernet networks as a PROFINET IO controller and/or IO device. It supports RT and IRT timing, MR P, and PROFINET CBA, and provides compatible protocols including TCP/IP, ISO, UDP, and S7 communication with RFC1006, plus multicast diagnostics. Built-in networking features include SNMP, DHCP, FTP client/server, and e-mail, along with firewall/VPN and PROFIenergy support. The module offers a PROFINET interface via a Gigabit-SS1X RJ45 port (10/100/1000) and two RJ45 connections rated at 10/100 Mbps, delivering robust Ethernet connectivity for S7-300 systems. Typical applications involve integrating SIMATIC S7-300 CPUs with Industrial Ethernet for PROFINET IO controllers and IO devices, enabling RT/IRT operation, MR P networks, remote diagnostics, and RFC1006-based data exchange across Ethernet.