Model Number:6GK7343-1EX21-0XE0
Net Weight (kg):0.299
Packaging Dimension:13.20 x 14.80 x 5.10 cm
Communication Protocol:TCP/IP, UDP, Multicast
Device Compatibility:SIMATIC S7-300 Systems
Data Transfer Modes:SEND/RECEIVE with and without RFC1006, Fetch/Write, S7 Communication (Server)
Integrated Component:PROFINET IO Device, ERTEC 200 2-Port Switch
Module Replacement:Without PG
Diagnostic Features:SNMP Diagnostics, Initialization via LAN
Connection Type:2x RJ45 for 10/100 Mbit/s LAN
Engineered for efficiency and reliability, the SIEMENS 6GK7343-1EX21-0XE0 Communication Processor is a critical component for any industrial automation setup, designed to optimize data flow and network performance.
With its advanced features, including support for TCP/IP, UDP, and Multicast protocols, this processor ensures seamless communication across industrial Ethernet networks, facilitating smooth data transfer between devices.
The processor’s SEND/RECEIVE functionality with and without RFC1006 compatibility provides flexibility and robustness, catering to diverse network requirements and ensuring compatibility with various industrial standards.
Integrated with a PROFINET IO device, the 2-Port Switch ERTEC 200 enables enhanced connectivity, supporting both industrial control and automation tasks efficiently. This feature minimizes the need for additional hardware, streamlining system architecture.
Designed for ease of use and maintenance, the SIEMENS 6GK7343-1EX21-0XE0 Communication Processor facilitates module replacement without the need for a Programmable Graphic System (PG), reducing downtime and simplifying maintenance procedures.
Equipped with SNMP diagnostics and initialization through LAN, this processor offers comprehensive monitoring and management tools, allowing users to easily troubleshoot and maintain optimal network performance.

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