{"product_id":"siemens-6es7-321-1bl00-0aa0-programmable-logic-controller-module","title":"Siemens 6ES7 321-1BL00-0AA0 Programmable Logic Controller Module","description":"\u003cdiv\u003e\u003cp\u003eSiemens SIMATIC S7-300 digital input module SM321, model 6ES7 321-1BL00-0AA0, provides 32 discrete 24V DC input points for the S7-300 family. The 6ES7 321-1BL00-0AA0 is a DI module that accepts external 24V signals from sensors and switches and translates them to the PLC logic. With 32 inputs, it supports modular I\/O expansion in Siemens automation cabinets and packaging lines, designed for use with SIMATIC S7-300 controllers as part of the SM321 family. Typical applications include reading signals from pushbuttons, limit switches, and proximity sensors in factory automation.\u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46268523413738,"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-6es7-321-1bl00-0aa0-programmable-logic-controller-module","provider":"GTG Hardware","version":"1.0","type":"link"}