{"product_id":"siemens-6es7321-1bh02-0aa0-digital-input-module","title":"Siemens 6ES7321-1BH02-0AA0 Digital Input Module","description":"\u003cdiv\u003e\u003cp\u003eSiemens 6ES7321-1BH02-0AA0 Digital Input Module is a SIMATIC S7-300 SM 321 expansion card that provides 16 digital inputs at DC 24 V, all galvanically isolated from the backplane, on a single 20-pole front connector. It reads discrete field signals from sensors, switches, and proximity devices, translating them into binary on\/off status for the CPU and enabling reliable monitoring and control in automation installations. The module belongs to the SIMATIC S7-300 digital input family and connects to the controller via the standard backplane, with galvanic isolation between the field wiring and the CPU backplane for protection against transients. The 16 digital inputs are designed for 24 V DC operation and are wired through the 1x 20-pole front connector, offering a compact, scalable I\/O solution for expanding input points in existing S7-300 systems. \u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":46268585836778,"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-6es7321-1bh02-0aa0-digital-input-module","provider":"GTG Hardware","version":"1.0","type":"link"}