{"product_id":"allen-bradley-flex-io-1794-acnr15-5-mbps-network-module","title":"Allen-Bradley FLEX IO 1794-ACNR15 5 Mbps Network Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003e1794-ACNR15\u003c\/strong\u003e is a high-reliability, Redundant ControlNet Adapter Module from Allen-Bradley's dependable FLEX IO product line. Serving as an intelligent network interface component, this lightweight 0.21 kg module bridges distributed factory-floor I\/O modules directly to a master Programmable Logic Controller (PLC) over a deterministic ControlNet network link. Featuring dual physical BNC ports, it maintains uninterrupted communication tokens across a redundant media loop, ensuring continuous uptime for critical process lines and heavy industrial machinery.\u003c\/p\u003e\n\u003ch2\u003eCore Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedundant Media Interface:\u003c\/strong\u003e Equipped with two ControlNet BNC ports to provide active communication path protection against single-point cable failures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Backplane Capacity:\u003c\/strong\u003e Delivers a maximum of 640 mA of Flexbus output current to seamlessly power high-density local discrete or analog I\/O racks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Galvanic Isolation:\u003c\/strong\u003e Features a high 850V DC electrical isolation barrier to shield sensitive backplane logic components from field surges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Noise Immunity:\u003c\/strong\u003e Built-in 60 dB noise rejection combined with 100 dB common mode rejection ensures reliable data transfers in high EMI environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"border: 1px solid #dddddd; text-align: left; padding: 6px;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #dddddd; text-align: left; padding: 6px;\"\u003eData\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eModel \/ Catalog Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e1794-ACNR15 (FLEX IO Architecture)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eNetwork Interface Profile\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003eRedundant ControlNet Media Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003ePhysical Connections\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e2 x ControlNet BNC Coaxial Ports (Channel A and Channel B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eData Transfer Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e5 Mbps (Deterministic clock speed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eExternal Power Requirement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e24V DC nominal (19.2 to 31.2V DC allowable window)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eCurrent \/ Power Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e400 mA max from external supply \/ 3.4W max power dissipation @ 19.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eInrush Current Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e23 Amps for a 2 millisecond startup window\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eMax Flexbus Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e640 mA maximum logic supply link\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eSystem Precision Performance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e±0.1% full-scale accuracy tracking with a 10 ms quick response time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eModule Net Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e0.21 kg (0.46 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eOperating Ambient Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e−20 to 55 °C (−4 to 131 °F) extended thermal rating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e\u003cstrong\u003eHarmonized Tariff Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #dddddd; padding: 6px;\"\u003e8537101190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eEngineering \u0026amp; Installation Guide\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Support \u0026amp; Weight Limits:\u003c\/strong\u003e At a compact net weight of \u003cstrong\u003e0.21 kg\u003c\/strong\u003e, this adapter mounts easily onto a standard TS35 DIN rail. Ensure the rail configuration is free from heavy physical shock to protect the interconnected flex backplane lines from loose contacts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIP Switch Station Addressing:\u003c\/strong\u003e Set the distinct ControlNet node address using the dual rotary or hardware DIP switches on the adapter module before snapping the unit onto the DIN rail framework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Coaxial Network Tap Lines:\u003c\/strong\u003e Connect both standard RG-6 coaxial cables to ports A and B using the appropriate 1794 network taps. Keep a maximum wire cross-section of 3.31 mm² (12 AWG) in mind for auxiliary terminal interfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInrush Current Mitigation:\u003c\/strong\u003e Ensure your source 24V DC line supply is adequately sized. The adapter triggers a sharp 23A inrush current spike for 2 ms during hot bootups, which can cause undersized fast-acting power supplies to trip out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Layout Space:\u003c\/strong\u003e Although this compact unit relies on passive convection cooling up to 55 °C, it generates 15.7 BTU\/hr under full load. Ensure adequate ventilation gaps are maintained around your cabinet enclosure layout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: How does the redundant media protocol function across ports A and B on the 1794-ACNR15 module?\u003c\/strong\u003e\u003cbr\u003eA1: The module processes incoming data tokens over both BNC channels simultaneously. If a physical break occurs on the primary trunk line (Channel A), the internal communication handler seamlessly uses the data stream from Channel B within microseconds, eliminating data dropouts or process stops.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Why is the 640 mA Flexbus output current threshold important when constructing an I\/O rack?\u003c\/strong\u003e\u003cbr\u003eA2: The 640 mA rating dictates the maximum logic current the adapter can feed to connected expansion modules down the backplane. Sum up the internal bus current requirements of all attached analog or discrete cards to ensure their total draw does not exceed this 640 mA maximum threshold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: What advantage do the 60 dB noise and 100 dB common mode rejection ratings provide in production fields?\u003c\/strong\u003e\u003cbr\u003eA3: Heavy industrial machinery, such as large variable frequency drives (VFDs) and high-power welding apparatus, can generate severe electromagnetic field fluctuations. These specific rejection levels shield your real-time input telemetry data from corruption, ensuring it transfers back to the central controller with an accuracy profile of ±0.1%.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51050311221380,"sku":"1794-ACNR15","price":110.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1794-ACNR15.jpg?v=1780670876","url":"https:\/\/www.etowonauto.com\/products\/allen-bradley-flex-io-1794-acnr15-5-mbps-network-module","provider":"Etowon Auto","version":"1.0","type":"link"}