{"product_id":"siemens-cp343-1-simatic-net-6gk7-343-1ex21-0xe0","title":"Siemens 6GK7343-1EX21-0XE0 Profibus DP Interface","description":"\u003cdiv\u003e\u003cp\u003eSiemens CP343-1 Communications Processor (order 6GK7343-1EX21-0XE0) is a PROFIBUS DP interface that ties a SIMATIC S7-300 PLC to an Industrial Ethernet network via PROFInet IO Controllers. It provides a single 100 Mbit\/s Industrial Ethernet interface (RJ45) and a 2‑pole plugable terminal block for DC power from the backplane bus (5 V), with C-PLUG removable media for configuration or data storage. The module supports S7 communication such as fetch\/write and SEND\/RECEIVE, with or without RFC1006, and enables Ethernet-based transport using ISO, TCP\/IP, and UDP over the Industrial Ethernet connection. Designed for DIN rail backplane mounting within SIMATIC NET environments, it allows older S7-300 systems to interface with modern Ethernet networks while maintaining PROFIBUS DP connectivity to field devices. Typical applications include integrating S7-300 controllers with PROFIBUS DP devices on an Ethernet backbone, enabling remote diagnostics, data exchange, and IT-system integration without sacrificing legacy fieldbus connectivity.\u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46268622340330,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-018.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/siemens-cp343-1-simatic-net-6gk7-343-1ex21-0xe0","provider":"GTG Hardware","version":"1.0","type":"link"}