{"product_id":"siemens-321-1bh50-0aa0-plc-digital-input-module","title":"Siemens 321-1BH50-0AA0 PLC Digital Input Module","description":"\u003cdiv\u003e\u003cp\u003eSiemens 6ES7 321-1BH50-0AA0 SM321 is a 16-channel digital input module for the SIMATIC S7-300 family that provides isolated 24 V DC inputs. It is a source-input, 16‑point module with optical isolation and a 1×20 backplane interface for connection to the PLC. The inputs are active-low, making it ideal for reading 24 V DC field devices such as sensors and switches in automation panels.\u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46268040577258,"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-016.png?v=1788727429","url":"https:\/\/gtghardware.com\/products\/siemens-321-1bh50-0aa0-plc-digital-input-module","provider":"GTG Hardware","version":"1.0","type":"link"}