{"product_id":"siemens-405-12abm-basic-coprocessor-module","title":"Siemens 405-12ABM Basic Coprocessor Module","description":"\u003cdiv\u003e\u003cp\u003eSiemens 405-12ABM Basic Coprocessor Module is a plug-in co-processor for Siemens’ DL405 family of PLCs, designed to reside in a DL405 backplane to supplement the CPU with its own processing path and serial communications capability. The module is built around a 16 MHz clock and provides three serial interfaces for external connectivity: Port 1 supports RS-232C, RS-422, and RS-485 signaling; Port 2 operates as RS-232C or in full-duplex mode; Port 3 is RS-232C. These ports enable connections to modems, printers, terminal devices, and other serial equipment commonly used in industrial automation. As a Basic Coprocessor Module, the 405-12ABM is intended for integration with the DL405 CPU base and ancillary I\/O modules within the Siemens Texas Instruments automation ecosystem, supporting serial communication configurations and offloading certain processing tasks from the main controller. This combination is typically employed in legacy 405-series installations where additional processing power and expanded serial I\/O are required without replacing the core DL405 hardware, such as in manufacturing lines, packaging, and batch control environments that rely on proven, long‑life equipment.\u003c\/p\u003e\u003c\/div\u003e","brand":"SIEMENS","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46268194914538,"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-017.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/siemens-405-12abm-basic-coprocessor-module","provider":"GTG Hardware","version":"1.0","type":"link"}