{"product_id":"siemens-6es7321-1fh00-0aa0-s7-300-digital-input-module","title":"Siemens 6ES7321-1FH00-0AA0","description":"\u003ch2 data-section-id=\"973bxd\" data-start=\"403\" data-end=\"480\"\u003e\u003cstrong data-start=\"406\" data-end=\"480\"\u003eSiemens 6ES7321-1FH00-0AA0 \u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3 data-section-id=\"1dl56dh\" data-start=\"482\" data-end=\"500\"\u003e\u003cstrong data-start=\"486\" data-end=\"498\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"501\" data-end=\"861\"\u003eThe Siemens 6ES7321-1FH00-0AA0 is a \u003cstrong data-start=\"537\" data-end=\"584\"\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 120\/230 V AC, providing strong noise immunity and safe signal processing in demanding environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1hx1w1i\" data-start=\"863\" data-end=\"885\"\u003e\u003cstrong data-start=\"867\" data-end=\"883\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"886\" data-end=\"1121\"\u003e\n\u003cli data-section-id=\"15mcvue\" data-start=\"886\" data-end=\"927\"\u003e\n\u003cp data-start=\"888\" data-end=\"927\"\u003eSM321 digital input module for S7-300\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10jwbjv\" data-start=\"928\" data-end=\"954\"\u003e\n\u003cp data-start=\"930\" data-end=\"954\"\u003e16 digital inputs (DI)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"y0xu0o\" data-start=\"955\" data-end=\"986\"\u003e\n\u003cp data-start=\"957\" data-end=\"986\"\u003eInput voltage: 120\/230 V AC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"2j0c8j\" data-start=\"987\" data-end=\"1033\"\u003e\n\u003cp data-start=\"989\" data-end=\"1033\"\u003eOptically isolated channels for protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ygu2d0\" data-start=\"1034\" data-end=\"1061\"\u003e\n\u003cp data-start=\"1036\" data-end=\"1061\"\u003e20-pole front connector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1g90xd0\" data-start=\"1062\" data-end=\"1094\"\u003e\n\u003cp data-start=\"1064\" data-end=\"1094\"\u003eReliable AC signal detection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17v2ak6\" data-start=\"1095\" data-end=\"1121\"\u003e\n\u003cp data-start=\"1097\" data-end=\"1121\"\u003eCompact modular design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1880me3\" data-start=\"1123\" data-end=\"1157\"\u003e\u003cstrong data-start=\"1127\" data-end=\"1155\"\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1158\" data-end=\"1585\"\u003e\n\u003cli data-section-id=\"kii1oq\" data-start=\"1158\" data-end=\"1198\"\u003e\n\u003cp data-start=\"1160\" data-end=\"1198\"\u003e\u003cstrong data-start=\"1160\" data-end=\"1177\"\u003eSiemens Code:\u003c\/strong\u003e 6ES7321-1FH00-0AA0\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1nq3xum\" data-start=\"1199\" data-end=\"1236\"\u003e\n\u003cp data-start=\"1201\" data-end=\"1236\"\u003e\u003cstrong data-start=\"1201\" data-end=\"1212\"\u003eSeries:\u003c\/strong\u003e SIMATIC S7-300, SM321\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"t4ken1\" data-start=\"1237\" data-end=\"1265\"\u003e\n\u003cp data-start=\"1239\" data-end=\"1265\"\u003e\u003cstrong data-start=\"1239\" data-end=\"1260\"\u003eNumber of Inputs:\u003c\/strong\u003e 16\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"mmafya\" data-start=\"1266\" data-end=\"1298\"\u003e\n\u003cp data-start=\"1268\" data-end=\"1298\"\u003e\u003cstrong data-start=\"1268\" data-end=\"1283\"\u003eInput Type:\u003c\/strong\u003e Digital (AC)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"3i2paw\" data-start=\"1299\" data-end=\"1334\"\u003e\n\u003cp data-start=\"1301\" data-end=\"1334\"\u003e\u003cstrong data-start=\"1301\" data-end=\"1319\"\u003eInput Voltage:\u003c\/strong\u003e 120\/230 V AC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1tw3cba\" data-start=\"1335\" data-end=\"1362\"\u003e\n\u003cp data-start=\"1337\" data-end=\"1362\"\u003e\u003cstrong data-start=\"1337\" data-end=\"1351\"\u003eFrequency:\u003c\/strong\u003e 47–63 Hz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1rslg11\" data-start=\"1363\" data-end=\"1396\"\u003e\n\u003cp data-start=\"1365\" data-end=\"1396\"\u003e\u003cstrong data-start=\"1365\" data-end=\"1387\"\u003ePower Consumption:\u003c\/strong\u003e ~4.9 W\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"hmu41f\" data-start=\"1397\" data-end=\"1433\"\u003e\n\u003cp data-start=\"1399\" data-end=\"1433\"\u003e\u003cstrong data-start=\"1399\" data-end=\"1414\"\u003eBus System:\u003c\/strong\u003e S7-300 backplane\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1bweoe1\" data-start=\"1434\" data-end=\"1476\"\u003e\n\u003cp data-start=\"1436\" data-end=\"1476\"\u003e\u003cstrong data-start=\"1436\" data-end=\"1451\"\u003eConnection:\u003c\/strong\u003e 20-pin front connector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18a20oa\" data-start=\"1477\" data-end=\"1508\"\u003e\n\u003cp data-start=\"1479\" data-end=\"1508\"\u003e\u003cstrong data-start=\"1479\" data-end=\"1501\"\u003eProtection Rating:\u003c\/strong\u003e IP20\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"qdegma\" data-start=\"1509\" data-end=\"1554\"\u003e\n\u003cp data-start=\"1511\" data-end=\"1554\"\u003e\u003cstrong data-start=\"1511\" data-end=\"1537\"\u003eOperating Temperature:\u003c\/strong\u003e 0 °C to +60 °C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1201ufh\" data-start=\"1555\" data-end=\"1585\"\u003e\n\u003cp data-start=\"1557\" data-end=\"1585\"\u003e\u003cstrong data-start=\"1557\" data-end=\"1576\"\u003eCertifications:\u003c\/strong\u003e CE, UL\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xdxar3\" data-start=\"1587\" data-end=\"1609\"\u003e\u003cstrong data-start=\"1591\" data-end=\"1607\"\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1610\" data-end=\"1771\"\u003e\n\u003cli data-section-id=\"idd3lt\" data-start=\"1610\" data-end=\"1643\"\u003e\n\u003cp data-start=\"1612\" data-end=\"1643\"\u003eIndustrial automation systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"2j2h3c\" data-start=\"1644\" data-end=\"1670\"\u003e\n\u003cp data-start=\"1646\" data-end=\"1670\"\u003eMachine control panels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17j27ln\" data-start=\"1671\" data-end=\"1693\"\u003e\n\u003cp data-start=\"1673\" data-end=\"1693\"\u003eProcess automation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"4qiktj\" data-start=\"1694\" data-end=\"1732\"\u003e\n\u003cp data-start=\"1696\" data-end=\"1732\"\u003eSignal acquisition from AC devices\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"bscysa\" data-start=\"1733\" data-end=\"1771\"\u003e\n\u003cp data-start=\"1735\" data-end=\"1771\"\u003eManufacturing and production lines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1kark4w\" data-start=\"1773\" data-end=\"1821\"\u003e\u003cstrong data-start=\"1777\" data-end=\"1819\"\u003eWhy Choose Siemens 6ES7321-1FH00-0AA0?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1822\" data-end=\"1989\"\u003e\n\u003cli data-section-id=\"b3tcwm\" data-start=\"1822\" data-end=\"1861\"\u003e\n\u003cp data-start=\"1824\" data-end=\"1861\"\u003eReliable AC input signal processing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ege4bw\" data-start=\"1862\" data-end=\"1902\"\u003e\n\u003cp data-start=\"1864\" data-end=\"1902\"\u003eHigh electrical isolation for safety\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"51we18\" data-start=\"1903\" data-end=\"1947\"\u003e\n\u003cp data-start=\"1905\" data-end=\"1947\"\u003eSeamless integration with S7-300 systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"nlbxia\" data-start=\"1948\" data-end=\"1989\"\u003e\n\u003cp data-start=\"1950\" data-end=\"1989\"\u003eProven Siemens industrial reliability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"9pqy2m\" data-start=\"1991\" data-end=\"2010\"\u003e\u003cstrong data-start=\"1995\" data-end=\"2008\"\u003eOrder Now\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2011\" data-end=\"2142\"\u003eUpgrade your automation system with the Siemens 6ES7321-1FH00-0AA0 — precise, reliable, and built for industrial signal processing.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":42189824917550,"sku":"6ES7321-1FH00-0AA0","price":202.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/2791\/4798\/files\/6ES7321-1FH00-0AA0.webp?v=1774319162","url":"https:\/\/qrh1h7-cr.myshopify.com\/products\/siemens-6es7321-1fh00-0aa0-s7-300-digital-input-module","provider":"PLCVERSE","version":"1.0","type":"link"}