{"product_id":"1794-aentr-rockwell-redundant-media-communication-unit","title":"1794-AENTR Rockwell Redundant Media Communication Unit","description":"\u003ch3\u003e\u003cstrong\u003eSystem Architecture and Functional Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1794-AENTR\u003c\/strong\u003e adapter serves as a high-performance, dual-port Ethernet\/IP communication module engineered for the Allen-Bradley \/ Rockwell Automation \u003cstrong\u003eFlex I\/O\u003c\/strong\u003e platform. Supporting Device Level Ring (DLR) and linear topologies, this DIN-rail mounted gateway bridges up to 8 distributed Flex I\/O modules directly to central controllers like ControlLogix and CompactLogix.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Parameters and Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer \/ Brand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRockwell Automation \/ Allen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/allen-bradley-1794-flex-i-o\"\u003eFlex I\/O\u003c\/a\u003e 1794 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \/ Catalog Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1794-AENTR\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDual-Port EtherNet\/IP Adapter Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo (2) RJ45 (10\/100 Mbps data transfer rate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupported Topologies\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLinear and Device Level Ring (DLR) for high availability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI\/O Module Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 8 Flex I\/O modules per adapter node\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNominal 24V DC (19.2 to 31.2V DC including 5% AC ripple)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBackplane FlexBus Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e640 mA maximum at 5V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower \u0026amp; Thermal Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMax 7.1 W (19.2V DC) | 24.2 BTU\/hr (24V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003ePhysical Integration and Installation Guidelines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the \u003cstrong\u003e1794-AENTR\u003c\/strong\u003e module securely onto standard DIN rails in an open-style enclosure, ensuring clearance for airflow.\u003c\/li\u003e\n\u003cli\u003eConnect external SELV\/PELV-compliant 24V DC power using stranded copper wire sized between 22 and 12 AWG (0.34 to 2.5 mm²) rated at 75°C or higher.\u003c\/li\u003e\n\u003cli\u003eMaintain operating ambient temperatures between 0°C and 55°C (32°F to 131°F) while protecting against excessive shock (up to 30g peak) and vibration (5g).\u003c\/li\u003e\n\u003cli\u003eConfigure static IP addresses, subnet masks, and gateway parameters via software tools prior to live network deployment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAdvanced Diagnostics and Network Status Indicators\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFront bi-color LEDs display real-time operational status for Module health, Network communication, and individual Ethernet Link 1 \/ Link 2 activity.\u003c\/li\u003e\n\u003cli\u003eLink indicators flash yellow for 10 Mbps connections and glow solid green for 100 Mbps full-duplex operation.\u003c\/li\u003e\n\u003cli\u003eBuilt-in managed switch capabilities support CIP data collection, drive configuration, and high-speed process control on a unified network.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompatibility and Network Scalability\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSeamlessly interfaces with Logix-family controllers using standard Category 5 RJ45 cabling without requiring complex routing tables or network scheduling.\u003c\/li\u003e\n\u003cli\u003eFully compatible with all standard 1794 Flex I\/O terminal bases and input\/output modules on the local backplane.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eLogistics and Warranty Terms\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBacked by a dependable \u003cstrong\u003e12-month warranty\u003c\/strong\u003e covering manufacturing flaws and internal hardware defects.\u003c\/li\u003e\n\u003cli\u003eExpedited international delivery coordinated through premier global logistics partners including \u003cstrong\u003eFedEx\u003c\/strong\u003e, \u003cstrong\u003eUPS\u003c\/strong\u003e, and \u003cstrong\u003eDHL\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eGuaranteed order processing and rapid dispatch within \u003cstrong\u003e24-48 hours\u003c\/strong\u003e of payment verification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTarget Equipment and Typical Application Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-availability plant-wide Ethernet\/IP networks requiring fault-tolerant Device Level Ring (DLR) topologies.\u003c\/li\u003e\n\u003cli\u003eDistributed manufacturing skids and remote pump stations communicating with central ControlLogix controllers.\u003c\/li\u003e\n\u003cli\u003eData acquisition racks requiring high-speed plant management and drive configuration over a single network.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight and Field Experience\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAutomation engineers deploying the \u003cstrong\u003e1794-AENTR\u003c\/strong\u003e in ring topologies must ensure that all media switches and adapters properly support DLR beacon-based supervision to prevent silent node dropouts. Field experience dictates that establishing a strict IP address management protocol during panel staging eliminates communication conflicts when expanding remote I\/O drops across the plant floor.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 1794-AENTR adapter be hot-swapped while the main control panel power is turned on?\u003c\/strong\u003e\u003cbr\u003eA: No, installing or removing this communication adapter while the system is powered on is strictly prohibited to prevent backplane damage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What specific network topologies are supported by the dual RJ45 ports on this adapter?\u003c\/strong\u003e\u003cbr\u003eA: The dual ports support both simple linear connections and high-availability Device Level Ring (DLR) network topologies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What troubleshooting steps apply if the Module or Network status LED glows solid red?\u003c\/strong\u003e\u003cbr\u003eA: Verify IP address configuration conflicts, inspect Ethernet cable integrity, and check for proper 24V DC power stability within the 19.2 to 31.2V range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 1794-AENTR require complex scheduling or routing table setup prior to operation?\u003c\/strong\u003e\u003cbr\u003eA: No network scheduling or routing tables are required; the adapter communicates natively via CIP over standard Ethernet\/IP infrastructure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What selection rules govern power supply compliance for this adapter module?\u003c\/strong\u003e\u003cbr\u003eA: Power sources must be Safety Extra Low Voltage (SELV) or Protected Extra Low Voltage (PELV) compliant to meet CE Low Voltage Directive standards.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":45013812281526,"sku":"1794-AENTR","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/1794-AENTR.jpg?v=1789025465","url":"https:\/\/www.plcsparehub.com\/products\/1794-aentr-rockwell-redundant-media-communication-unit","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}