{"product_id":"siemens-6es7321-1eh01-0aa0-s7-300-digital-input-module","title":"Siemens 6ES7321-1EH01-0AA0","description":"\u003ch2 data-end=\"470\" data-start=\"393\" data-section-id=\"gpgamb\"\u003e\u003cstrong data-end=\"470\" data-start=\"396\"\u003eSiemens 6ES7321-1EH01-0AA0\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3 data-end=\"490\" data-start=\"472\" data-section-id=\"1dl56dh\"\u003e\u003cstrong data-end=\"488\" data-start=\"476\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"820\" data-start=\"491\"\u003eThe Siemens 6ES7321-1EH01-0AA0 is a \u003cstrong data-end=\"574\" data-start=\"527\"\u003eSIMATIC S7-300 digital input module (SM321)\u003c\/strong\u003e designed for reliable signal acquisition in industrial automation systems. It features 16 optically isolated digital inputs operating at 24 V DC, ensuring high noise immunity, safe operation, and consistent performance in demanding environments.\u003c\/p\u003e\n\u003ch3 data-end=\"844\" data-start=\"822\" data-section-id=\"1hx1w1i\"\u003e\u003cstrong data-end=\"842\" data-start=\"826\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-end=\"1052\" data-start=\"845\"\u003e\n\u003cli data-end=\"886\" data-start=\"845\" data-section-id=\"15mcvue\"\u003e\n\u003cp data-end=\"886\" data-start=\"847\"\u003eSM321 digital input module for S7-300\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"913\" data-start=\"887\" data-section-id=\"10jwbjv\"\u003e\n\u003cp data-end=\"913\" data-start=\"889\"\u003e16 digital inputs (DI)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"940\" data-start=\"914\" data-section-id=\"rto31y\"\u003e\n\u003cp data-end=\"940\" data-start=\"916\"\u003eInput voltage: 24 V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"972\" data-start=\"941\" data-section-id=\"1egawaz\"\u003e\n\u003cp data-end=\"972\" data-start=\"943\"\u003eOptically isolated channels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1000\" data-start=\"973\" data-section-id=\"1ygu2d0\"\u003e\n\u003cp data-end=\"1000\" data-start=\"975\"\u003e20-pole front connector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1025\" data-start=\"1001\" data-section-id=\"1gt3yqa\"\u003e\n\u003cp data-end=\"1025\" data-start=\"1003\"\u003eFast signal response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1052\" data-start=\"1026\" data-section-id=\"17v2ak6\"\u003e\n\u003cp data-end=\"1052\" data-start=\"1028\"\u003eCompact modular design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1088\" data-start=\"1054\" data-section-id=\"1880me3\"\u003e\u003cstrong data-end=\"1086\" data-start=\"1058\"\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-end=\"1519\" data-start=\"1089\"\u003e\n\u003cli data-end=\"1129\" data-start=\"1089\" data-section-id=\"1sgsu5k\"\u003e\n\u003cp data-end=\"1129\" data-start=\"1091\"\u003e\u003cstrong data-end=\"1108\" data-start=\"1091\"\u003eSiemens Code:\u003c\/strong\u003e 6ES7321-1EH01-0AA0\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1167\" data-start=\"1130\" data-section-id=\"1nq3xum\"\u003e\n\u003cp data-end=\"1167\" data-start=\"1132\"\u003e\u003cstrong data-end=\"1143\" data-start=\"1132\"\u003eSeries:\u003c\/strong\u003e SIMATIC S7-300, SM321\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1196\" data-start=\"1168\" data-section-id=\"t4ken1\"\u003e\n\u003cp data-end=\"1196\" data-start=\"1170\"\u003e\u003cstrong data-end=\"1191\" data-start=\"1170\"\u003eNumber of Inputs:\u003c\/strong\u003e 16\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1229\" data-start=\"1197\" data-section-id=\"mprzuv\"\u003e\n\u003cp data-end=\"1229\" data-start=\"1199\"\u003e\u003cstrong data-end=\"1214\" data-start=\"1199\"\u003eInput Type:\u003c\/strong\u003e Digital (DC)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1260\" data-start=\"1230\" data-section-id=\"15uzjfa\"\u003e\n\u003cp data-end=\"1260\" data-start=\"1232\"\u003e\u003cstrong data-end=\"1250\" data-start=\"1232\"\u003eInput Voltage:\u003c\/strong\u003e 24 V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1301\" data-start=\"1261\" data-section-id=\"11uee17\"\u003e\n\u003cp data-end=\"1301\" data-start=\"1263\"\u003e\u003cstrong data-end=\"1281\" data-start=\"1263\"\u003eInput Current:\u003c\/strong\u003e ~7 mA per channel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1330\" data-start=\"1302\" data-section-id=\"1dmcgvk\"\u003e\n\u003cp data-end=\"1330\" data-start=\"1304\"\u003e\u003cstrong data-end=\"1322\" data-start=\"1304\"\u003eResponse Time:\u003c\/strong\u003e ~3 ms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1367\" data-start=\"1331\" data-section-id=\"hmu41f\"\u003e\n\u003cp data-end=\"1367\" data-start=\"1333\"\u003e\u003cstrong data-end=\"1348\" data-start=\"1333\"\u003eBus System:\u003c\/strong\u003e S7-300 backplane\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1410\" data-start=\"1368\" data-section-id=\"1bweoe1\"\u003e\n\u003cp data-end=\"1410\" data-start=\"1370\"\u003e\u003cstrong data-end=\"1385\" data-start=\"1370\"\u003eConnection:\u003c\/strong\u003e 20-pin front connector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1442\" data-start=\"1411\" data-section-id=\"18a20oa\"\u003e\n\u003cp data-end=\"1442\" data-start=\"1413\"\u003e\u003cstrong data-end=\"1435\" data-start=\"1413\"\u003eProtection Rating:\u003c\/strong\u003e IP20\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1488\" data-start=\"1443\" data-section-id=\"qdegma\"\u003e\n\u003cp data-end=\"1488\" data-start=\"1445\"\u003e\u003cstrong data-end=\"1471\" data-start=\"1445\"\u003eOperating Temperature:\u003c\/strong\u003e 0 °C to +60 °C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1519\" data-start=\"1489\" data-section-id=\"1201ufh\"\u003e\n\u003cp data-end=\"1519\" data-start=\"1491\"\u003e\u003cstrong data-end=\"1510\" data-start=\"1491\"\u003eCertifications:\u003c\/strong\u003e CE, UL\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1543\" data-start=\"1521\" data-section-id=\"xdxar3\"\u003e\u003cstrong data-end=\"1541\" data-start=\"1525\"\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1544\"\u003e\n\u003cli data-end=\"1577\" data-start=\"1544\" data-section-id=\"idd3lt\"\u003e\n\u003cp data-end=\"1577\" data-start=\"1546\"\u003eIndustrial automation systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1604\" data-start=\"1578\" data-section-id=\"2j2h3c\"\u003e\n\u003cp data-end=\"1604\" data-start=\"1580\"\u003eMachine control panels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1627\" data-start=\"1605\" data-section-id=\"17j27ln\"\u003e\n\u003cp data-end=\"1627\" data-start=\"1607\"\u003eProcess automation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1667\" data-start=\"1628\" data-section-id=\"13jnkuw\"\u003e\n\u003cp data-end=\"1667\" data-start=\"1630\"\u003eSensor signal acquisition (24 V DC)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1668\" data-section-id=\"bscysa\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1670\"\u003eManufacturing and production lines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1756\" data-start=\"1708\" data-section-id=\"7d5mky\"\u003e\u003cstrong data-end=\"1754\" data-start=\"1712\"\u003eWhy Choose Siemens 6ES7321-1EH01-0AA0?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-end=\"1925\" data-start=\"1757\"\u003e\n\u003cli data-end=\"1801\" data-start=\"1757\" data-section-id=\"1s2d88z\"\u003e\n\u003cp data-end=\"1801\" data-start=\"1759\"\u003eReliable 24 V DC input signal processing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1842\" data-start=\"1802\" data-section-id=\"1ege4bw\"\u003e\n\u003cp data-end=\"1842\" data-start=\"1804\"\u003eHigh electrical isolation for safety\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1887\" data-start=\"1843\" data-section-id=\"51we18\"\u003e\n\u003cp data-end=\"1887\" data-start=\"1845\"\u003eSeamless integration with S7-300 systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1925\" data-start=\"1888\" data-section-id=\"1ssob1b\"\u003e\n\u003cp data-end=\"1925\" data-start=\"1890\"\u003eProven Siemens industrial quality\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1946\" data-start=\"1927\" data-section-id=\"9pqy2m\"\u003e\u003cstrong data-end=\"1944\" data-start=\"1931\"\u003eOrder Now\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"2078\" data-start=\"1947\"\u003eUpgrade your automation system with the Siemens 6ES7321-1EH01-0AA0 — precise, reliable, and built for industrial signal processing.\u003c\/p\u003e","brand":"SIEMENS","offers":[{"title":"Refurbished","offer_id":51156357120278,"sku":"Refurbished","price":350.0,"currency_code":"USD","in_stock":true},{"title":"DDPARTSSOLUTION Packaging","offer_id":51156357153046,"sku":"DDPARTSSOLUTION Packaging","price":609.0,"currency_code":"USD","in_stock":true},{"title":"Original Packaging","offer_id":51156357185814,"sku":"Original Packaging","price":1020.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/1049\/2438\/files\/siemens-6es7321-1eh01-0aa0-7393288.webp?v=1780271771","url":"https:\/\/ddpartssolution.com\/es\/products\/siemens-6es7321-1eh01-0aa0-s7-300-digital-input-module","provider":"DDPARTS SOLUTION","version":"1.0","type":"link"}