{"product_id":"siemens-6es7-321-1bl00-0aa0-s7-300-digital-input-module","title":"Siemens 6ES7 321-1BL00-0AA0  Digital Input Module","description":"\u003cpre\u003e\u003ccode class=\"language-text\"\u003eBrand: Siemens\nModel: SIMATIC S7-300 SM 321\nType: Digital Input Module\nPart number: 6ES7 321-1BL00-0AA0\nTechnical specs:\n- Series: SIMATIC S7-300\n- Module type: SM 321 Digital Input Module\n- Number of inputs: 32 digital inputs\n- Rated input voltage: 24 VDC\n- Optically isolated inputs\n- Isolation between channels in groups of 16\n- Input current: approx. 7 mA per channel\n- Signal \"1\" voltage range: 13–30 VDC\n- Signal \"0\" voltage range: -30 to +5 VDC\n- Input delay: 1.2–4.8 ms\n- Front connector: 40-pin\n- Compatible with switches and 2-\/3-\/4-wire proximity sensors\n- Maximum cable length:\n  - 600 m unshielded\n  - 1000 m shielded\n- Backplane bus current consumption: max. 15 mA\n- Status indication: Green LED per input channel\n- Mounting: S7-300 rack \/ ET200M system\u003cbr\u003e\nWeight: 300 g\u003cbr\u003e\nDimensions: 40 x 125 x 120 mm\u003cbr\u003e\nCountry of origin: Germany\u003cbr\u003e\nHS Code: 8538.90\u003c\/code\u003e\u003c\/pre\u003e","brand":"Used Industrial Parts","offers":[{"title":"Used","offer_id":53092792402262,"sku":"AB-03-05-6152422550565","price":145.0,"currency_code":"EUR","in_stock":true},{"title":"New in original packaging","offer_id":54101799600470,"sku":"sku-53960627290449","price":250.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/9989\/8198\/files\/Screenshot_2026-06-05_at_11.57.08.png?v=1780653643","url":"https:\/\/www.laskoning.com\/products\/siemens-6es7-321-1bl00-0aa0-s7-300-digital-input-module","provider":"Laskoning","version":"1.0","type":"link"}