{"product_id":"1794-adn-allen-bradley-24v-dc-devicenet-communication-head","title":"1794-ADN Allen-Bradley 24V DC DeviceNet Communication Head","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"citation-2225 citation-end-2225\"\u003eThe Allen-Bradley 1794-ADN serves as a high-performance communication gateway for the FLEX™ I\/O system, enabling seamless integration into DeviceNet® industrial networks.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eThis adapter module acts as the localized head-end for a distributed I\/O rack, managing the data exchange between the central PLC processor and up to eight individual FLEX I\/O expansion modules. By centralizing power distribution and network signals, the 1794-ADN reduces wiring complexity and allows for modular scalability in modern automation environments.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned for high availability, the 1794-ADN effectively bridges the gap between field-level sensors and supervisory control systems.\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-2224 citation-end-2224\"\u003eIts compact, open-type design supports both standard DIN rail and panel mounting, making it an ideal choice for space-constrained control cabinets in manufacturing, material handling, and process industries.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eConnectivity and Network Architecture\u003c\/h3\u003e\n\u003cp\u003eThe 1794-ADN is engineered to provide a stable and deterministic link for mission-critical data.\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-2223\"\u003e\u003c\/span\u003e\u003cstrong\u003eMulti-Rate Communication:\u003c\/strong\u003e\u003cspan class=\"citation-2223 citation-end-2223\"\u003e\u003cspan\u003e \u003c\/span\u003eAutomatically detects and supports standard DeviceNet transmission speeds of 125 Kbps, 250 Kbps, and 500 Kbps upon power-up.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSimplified Addressing:\u003c\/strong\u003e\u003cspan class=\"citation-2222 citation-end-2222\"\u003e\u003cspan\u003e \u003c\/span\u003eFeatures integrated manual thumbwheel switches for quick node address assignment (ranging from 00 to 63), eliminating the need for complex software configuration during initial hardware setup.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlexible Power Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOperates on a nominal 24V DC input and provides a dedicated 640 mA FlexBus output to power the internal logic of the attached I\/O modules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDiagnostic Transparency:\u003c\/strong\u003e\u003cspan class=\"citation-2221 citation-end-2221\"\u003e\u003cspan\u003e \u003c\/span\u003eEquipped with front-panel LED indicators that provide real-time status updates for \"Module Status,\" \"Network Status,\" and \"I\/O Status,\" facilitating rapid troubleshooting.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-2220\"\u003e\u003c\/span\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e\u003cspan class=\"citation-2220 citation-end-2220\"\u003e\u003cspan\u003e \u003c\/span\u003eAllen-Bradley (Rockwell Automation)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel Number:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1794-ADN\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModule Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDeviceNet Communication Adapter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e24V DC (Range: 19.2–31.2V DC)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-2219\"\u003e\u003c\/span\u003e\u003cstrong\u003eNetwork Protocol:\u003c\/strong\u003e\u003cspan class=\"citation-2219 citation-end-2219\"\u003e\u003cspan\u003e \u003c\/span\u003eDeviceNet (CAN-based)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExpansion Capacity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUp to 8 FLEX I\/O Modules\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlexBus Output Current:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e640 mA @ 5V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDeviceNet Current Draw:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e90 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-2218\"\u003e\u003c\/span\u003e\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e\u003cspan class=\"citation-2218 citation-end-2218\"\u003e\u003cspan\u003e \u003c\/span\u003e-20°C to +70°C (-4°F to 158°F)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e9.4 x 9.1 x 8.6 cm (3.7 x 3.6 x 3.4 inches)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.9 kg (1.98 lbs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIndustrial Durability and Environmental Compliance\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRuggedized Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRated for operation in harsh industrial zones, with significant resistance to operational shock and vibration to ensure continuous network uptime.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVersatile Mounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIts small footprint allows for high-density I\/O configurations, compatible with standard 35mm DIN rails.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCable Standards:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned for use with standard 5-pin or 10-pin linear DeviceNet plugs; Rockwell recommends high-quality industrial-grade cabling (like Belden YR-29832) to maintain signal integrity over long trunk lines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProtective Circuitry:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIncludes internal polarity protection for the 24V DC input and isolation between the DeviceNet network and the local I\/O logic.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45519093563565,"sku":"1794-ADN","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/allen-bradley-1794-adn-devicenet-adaptor-bbh55k12utw.jpg?v=1766986884","url":"https:\/\/www.maxwellplc.com\/products\/1794-adn-allen-bradley-24v-dc-devicenet-communication-head","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}