Siemens 6GK7343-1EX11-0XE0 Industrial Ethernet Switch

Siemens 6GK7343-1EX11-0XE0 Simatic Net CP 343-1 Communications Processor is designed to connect a SIMATIC S7-300 controller to Industrial Ethernet using ISO/TCP/IP. The module combines a CP 343-1 core with an ERTEC 200‑based, integrated two‑port Ethernet switch, enabling S7 communication (FETCH/WRITE, SEND/RECEIVE RFC1006) and network features such as multicast and DHCP within the same device. It provides a single 10/100 Mbit/s Industrial Ethernet interface (RJ45 port, with AUI option) for LAN connectivity and draws power from a 24 V DC external supply, while also receiving 5 V from the backplane bus. This CP343‑1 device is intended for SIMATIC NET architectures where compact Ethernet bridging and S7 over Ethernet are required, offering LAN initialization and seamless integration into existing ISO/TCP/IP networks.