{"product_id":"allen-bradley-1747-sn-plc-remote-i-o-scanner-module-1747sn","title":"ALLEN-BRADLEY 1747-SN PLC Remote I\/O Scanner Module 1747SN","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"490\"\u003eThe \u003ca href=\"https:\/\/plgautomation.com\/collections\/allen-bradley\"\u003eAllen‑Bradley\u003c\/a\u003e 1747‑SN PLC remote I\/O scanner module is used in industrial control systems to manage communication between a PLC and distributed I\/O networks. Commonly installed in legacy SLC 500 and PLC‑5 systems to scan remote I\/O racks, allowing distributed sensors and actuators to interface with the central controller. Maintenance teams and system integrators use this module for network expansion, system upgrades, and replacement of failed communication modules.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"492\" data-end=\"509\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"510\" data-end=\"900\"\u003eThe Allen Bradley 1747‑SN scanner module is widely used in factory automation environments that require distributed I\/O networking with centralized control. It is commonly found in assembly lines, conveyor systems, packaging machinery, and process automation where remote I\/O racks enable flexible machine layouts, reduced cabling, and improved control architecture for distributed sensors and actuators.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"902\" data-end=\"931\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"932\" data-end=\"1525\"\u003e• Model: 1747‑SN\u003cbr data-start=\"948\" data-end=\"951\"\u003e• Function: Remote I\/O scanner interface for SLC 500\/PLC‑5 systems\u003cbr data-start=\"1017\" data-end=\"1020\"\u003e• Protocol support: DH‑485 remote I\/O communications\u003cbr data-start=\"1072\" data-end=\"1075\"\u003e• Backplane interface: 1747 rack mounting\u003cbr data-start=\"1116\" data-end=\"1119\"\u003e• Supported I\/O racks: 1794 FLEX I\/O (with scanner support)\u003cbr data-start=\"1178\" data-end=\"1181\"\u003e• Communication speed: Up to 115.2 kbaud (DH‑485)\u003cbr data-start=\"1230\" data-end=\"1233\"\u003e• Indicators: Status LEDs for run, error, and communication\u003cbr data-start=\"1292\" data-end=\"1295\"\u003e• Mounting: DIN rail or panel via PLC rack\u003cbr data-start=\"1337\" data-end=\"1340\"\u003e• Compatibility: Allen‑Bradley SLC 500, PLC‑5 with appropriate firmware\u003cbr data-start=\"1411\" data-end=\"1414\"\u003e• Designed for: Remote I\/O scanning and distributed network communication\u003cbr data-start=\"1487\" data-end=\"1490\"\u003e• Power: Supplied via PLC backplane\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"1527\" data-end=\"1551\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1552\" data-end=\"1719\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Allen‑Bradley 1785‑DN2 (Data Highway Plus interface)\u003cbr data-start=\"1606\" data-end=\"1609\"\u003e• Allen‑Bradley 1794‑SCNR2 (FLEX I\/O scanner)\u003cbr data-start=\"1654\" data-end=\"1657\"\u003e• Alternative Ethernet‑based remote I\/O module (EtherNet\/IP)\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"New","offer_id":51658954834222,"sku":null,"price":535.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/14.webp?v=1775019985","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1747-sn-plc-remote-i-o-scanner-module-1747sn","provider":"PLG Automation ","version":"1.0","type":"link"}