{"product_id":"siemens-6es7-340-1ch00-0ae0-communication-processor","title":"Siemens 6ES7-340-1CH00-0AE0 Communication Processor","description":"\u003cdiv\u003e\u003cp\u003eSiemens CP340 RS422\/485 Communication Processor for SIMATIC S7-300 (order number 6ES7-340-1CH00-0AE0) provides a dedicated serial link on the S7-300 PLC backplane for point-to-point RS-422\/RS-485 communication. The module uses a 15-pin Sub-D front connector and supports RS-422 in full-duplex (4-wire) or RS-485 in half-duplex (2-wire) configurations. Designed to connect the S7-300 to other PLCs or serial devices such as printers or terminals, it extends the PLC's reach over a serial network. This CP340 variant is explicitly described as CP 340–RS 422\/485 in Siemens documentation and catalog listings. \u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46268588327146,"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-6es7-340-1ch00-0ae0-communication-processor","provider":"GTG Hardware","version":"1.0","type":"link"}