{"product_id":"siemens-6es7321-1eh01-0aa0-s7-300-digital-input-module","title":"Siemens 6ES7321-1EH01-0AA0","description":"\u003ch2 data-section-id=\"gpgamb\" data-start=\"395\" data-end=\"472\"\u003e\u003cstrong data-start=\"398\" data-end=\"472\"\u003eSiemens 6ES7321-1EH01-0AA0 \u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3 data-section-id=\"1dl56dh\" data-start=\"474\" data-end=\"492\"\u003e\u003cstrong data-start=\"478\" data-end=\"490\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"493\" data-end=\"822\"\u003eThe Siemens 6ES7321-1EH01-0AA0 is a \u003cstrong data-start=\"529\" data-end=\"576\"\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-section-id=\"1hx1w1i\" data-start=\"824\" data-end=\"846\"\u003e\u003cstrong data-start=\"828\" data-end=\"844\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"847\" data-end=\"1054\"\u003e\n\u003cli data-section-id=\"15mcvue\" data-start=\"847\" data-end=\"888\"\u003e\n\u003cp data-start=\"849\" data-end=\"888\"\u003eSM321 digital input module for S7-300\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10jwbjv\" data-start=\"889\" data-end=\"915\"\u003e\n\u003cp data-start=\"891\" data-end=\"915\"\u003e16 digital inputs (DI)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"rto31y\" data-start=\"916\" data-end=\"942\"\u003e\n\u003cp data-start=\"918\" data-end=\"942\"\u003eInput voltage: 24 V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1egawaz\" data-start=\"943\" data-end=\"974\"\u003e\n\u003cp data-start=\"945\" data-end=\"974\"\u003eOptically isolated channels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ygu2d0\" data-start=\"975\" data-end=\"1002\"\u003e\n\u003cp data-start=\"977\" data-end=\"1002\"\u003e20-pole front connector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1gt3yqa\" data-start=\"1003\" data-end=\"1027\"\u003e\n\u003cp data-start=\"1005\" data-end=\"1027\"\u003eFast signal response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17v2ak6\" data-start=\"1028\" data-end=\"1054\"\u003e\n\u003cp data-start=\"1030\" data-end=\"1054\"\u003eCompact modular design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1880me3\" data-start=\"1056\" data-end=\"1090\"\u003e\u003cstrong data-start=\"1060\" data-end=\"1088\"\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1091\" data-end=\"1521\"\u003e\n\u003cli data-section-id=\"1sgsu5k\" data-start=\"1091\" data-end=\"1131\"\u003e\n\u003cp data-start=\"1093\" data-end=\"1131\"\u003e\u003cstrong data-start=\"1093\" data-end=\"1110\"\u003eSiemens Code:\u003c\/strong\u003e 6ES7321-1EH01-0AA0\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1nq3xum\" data-start=\"1132\" data-end=\"1169\"\u003e\n\u003cp data-start=\"1134\" data-end=\"1169\"\u003e\u003cstrong data-start=\"1134\" data-end=\"1145\"\u003eSeries:\u003c\/strong\u003e SIMATIC S7-300, SM321\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"t4ken1\" data-start=\"1170\" data-end=\"1198\"\u003e\n\u003cp data-start=\"1172\" data-end=\"1198\"\u003e\u003cstrong data-start=\"1172\" data-end=\"1193\"\u003eNumber of Inputs:\u003c\/strong\u003e 16\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"mprzuv\" data-start=\"1199\" data-end=\"1231\"\u003e\n\u003cp data-start=\"1201\" data-end=\"1231\"\u003e\u003cstrong data-start=\"1201\" data-end=\"1216\"\u003eInput Type:\u003c\/strong\u003e Digital (DC)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"15uzjfa\" data-start=\"1232\" data-end=\"1262\"\u003e\n\u003cp data-start=\"1234\" data-end=\"1262\"\u003e\u003cstrong data-start=\"1234\" data-end=\"1252\"\u003eInput Voltage:\u003c\/strong\u003e 24 V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"11uee17\" data-start=\"1263\" data-end=\"1303\"\u003e\n\u003cp data-start=\"1265\" data-end=\"1303\"\u003e\u003cstrong data-start=\"1265\" data-end=\"1283\"\u003eInput Current:\u003c\/strong\u003e ~7 mA per channel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1dmcgvk\" data-start=\"1304\" data-end=\"1332\"\u003e\n\u003cp data-start=\"1306\" data-end=\"1332\"\u003e\u003cstrong data-start=\"1306\" data-end=\"1324\"\u003eResponse Time:\u003c\/strong\u003e ~3 ms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"hmu41f\" data-start=\"1333\" data-end=\"1369\"\u003e\n\u003cp data-start=\"1335\" data-end=\"1369\"\u003e\u003cstrong data-start=\"1335\" data-end=\"1350\"\u003eBus System:\u003c\/strong\u003e S7-300 backplane\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1bweoe1\" data-start=\"1370\" data-end=\"1412\"\u003e\n\u003cp data-start=\"1372\" data-end=\"1412\"\u003e\u003cstrong data-start=\"1372\" data-end=\"1387\"\u003eConnection:\u003c\/strong\u003e 20-pin front connector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18a20oa\" data-start=\"1413\" data-end=\"1444\"\u003e\n\u003cp data-start=\"1415\" data-end=\"1444\"\u003e\u003cstrong data-start=\"1415\" data-end=\"1437\"\u003eProtection Rating:\u003c\/strong\u003e IP20\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"qdegma\" data-start=\"1445\" data-end=\"1490\"\u003e\n\u003cp data-start=\"1447\" data-end=\"1490\"\u003e\u003cstrong data-start=\"1447\" data-end=\"1473\"\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=\"1491\" data-end=\"1521\"\u003e\n\u003cp data-start=\"1493\" data-end=\"1521\"\u003e\u003cstrong data-start=\"1493\" data-end=\"1512\"\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=\"1523\" data-end=\"1545\"\u003e\u003cstrong data-start=\"1527\" data-end=\"1543\"\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1546\" data-end=\"1708\"\u003e\n\u003cli data-section-id=\"idd3lt\" data-start=\"1546\" data-end=\"1579\"\u003e\n\u003cp data-start=\"1548\" data-end=\"1579\"\u003eIndustrial automation systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"2j2h3c\" data-start=\"1580\" data-end=\"1606\"\u003e\n\u003cp data-start=\"1582\" data-end=\"1606\"\u003eMachine control panels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17j27ln\" data-start=\"1607\" data-end=\"1629\"\u003e\n\u003cp data-start=\"1609\" data-end=\"1629\"\u003eProcess automation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"13jnkuw\" data-start=\"1630\" data-end=\"1669\"\u003e\n\u003cp data-start=\"1632\" data-end=\"1669\"\u003eSensor signal acquisition (24 V DC)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"bscysa\" data-start=\"1670\" data-end=\"1708\"\u003e\n\u003cp data-start=\"1672\" data-end=\"1708\"\u003eManufacturing and production lines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"7d5mky\" data-start=\"1710\" data-end=\"1758\"\u003e\u003cstrong data-start=\"1714\" data-end=\"1756\"\u003eWhy Choose Siemens 6ES7321-1EH01-0AA0?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1759\" data-end=\"1927\"\u003e\n\u003cli data-section-id=\"1s2d88z\" data-start=\"1759\" data-end=\"1803\"\u003e\n\u003cp data-start=\"1761\" data-end=\"1803\"\u003eReliable 24 V DC input signal processing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ege4bw\" data-start=\"1804\" data-end=\"1844\"\u003e\n\u003cp data-start=\"1806\" data-end=\"1844\"\u003eHigh electrical isolation for safety\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"51we18\" data-start=\"1845\" data-end=\"1889\"\u003e\n\u003cp data-start=\"1847\" data-end=\"1889\"\u003eSeamless integration with S7-300 systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ssob1b\" data-start=\"1890\" data-end=\"1927\"\u003e\n\u003cp data-start=\"1892\" data-end=\"1927\"\u003eProven Siemens industrial quality\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"9pqy2m\" data-start=\"1929\" data-end=\"1948\"\u003e\u003cstrong data-start=\"1933\" data-end=\"1946\"\u003eOrder Now\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1949\" data-end=\"2080\"\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":"Default Title","offer_id":44251632074887,"sku":"6ES7321-1EH01-0AA0","price":602.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/8632\/3847\/files\/6ES7321-1EH01-0AA0.webp?v=1774404351","url":"https:\/\/plcpartssolution.com\/es\/products\/siemens-6es7321-1eh01-0aa0-s7-300-digital-input-module","provider":"PLCPARTS SOLUTION","version":"1.0","type":"link"}