{"product_id":"siemens-6es7-321-1bh02-0aa0-input-module-for-s7-300","title":"Siemens 6ES7 321-1BH02-0AA0 Input Module For S7-300","description":"\u003cdiv\u003e\u003cp\u003eSiemens SM 321 digital input module, 16 x 24 V DC, for the S7-300 family, provides 16 optically isolated inputs in a 20-pin front connector (order number 6ES7 321-1BH02-0AA0). Designed for industrial automation, it reads 24 V DC signals from sensors and switches and plugs into the S7-300 backplane as a standard SM321 DI module. With 16 channels in a compact form factor, it enables grouped input handling for status indications and control logic while maintaining field-to-backplane isolation.\u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46269153214698,"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-019.png?v=1788727428","url":"https:\/\/gtghardware.com\/products\/siemens-6es7-321-1bh02-0aa0-input-module-for-s7-300","provider":"GTG Hardware","version":"1.0","type":"link"}