Siemens 6GK7 343-1EX21-0XE0 Industrial Communication Processor
The Siemens 6GK7 343-1EX21-0XE0 Communication Processor is an advanced module designed for seamless integration of SIMATIC S7-300 systems into industrial Ethernet networks using TCP/IP and UDP protocols. This processor supports multicast, SEND/RECEIVE operations with or without RFC1006, Fetch/Write functions, and server-side S7 communication, integrating a PROFINET IO device and a 2-port ERTEC 200 switch.











