{"product_id":"allen-bradley-1794-acnr-flex-i-o-controlnet-redundant-media-adapter-module","title":"Allen-Bradley 1794-ACNR Flex I\/O ControlNet Redundant Media Adapter Module","description":"\u003ch2\u003eAllen-Bradley 1794-ACNR Flex I\/O ControlNet Redundant Media Adapter Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for redundant ControlNet communication management in Flex I\/O 1794 systems, the \u003cstrong\u003eAllen-Bradley 1794-ACNR\u003c\/strong\u003e (\u003cstrong\u003e1794-ACNR\u003c\/strong\u003e Flex I\/O ControlNet Adapter Module) provides direct network data exchange and field I\/O interface execution. The adapter supports dual ControlNet ports and connection of up to eight Flex I\/O modules.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1794-ACNR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.79 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e400 mA maximum from external 24 VDC supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eFlex I\/O 1794\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eFlex I\/O ControlNet Redundant Media Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eControlNet V 1.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003eTwo ControlNet BNC ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Rate\u003c\/td\u003e\n\u003ctd\u003e5 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eDIN rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported I\/O Modules\u003c\/td\u003e\n\u003ctd\u003eUp to 8 Flex I\/O modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e19.2 to 31.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e4.6 W maximum at 19.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Dissipation\u003c\/td\u003e\n\u003ctd\u003e15.7 BTU\/hr at 19.2 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlexBus Output Current\u003c\/td\u003e\n\u003ctd\u003e640 mA maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e850 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInrush Current\u003c\/td\u003e\n\u003ctd\u003e23 A for 2 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Shock\u003c\/td\u003e\n\u003ctd\u003eIEC 60068-2-27 Test Ea, 30 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration\u003c\/td\u003e\n\u003ctd\u003eIEC 60068-2-6 Test Fc, 5 g at 10-500 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic ControlNet Network Communication\u003c\/h3\u003e\n\u003cp\u003eThe 1794-ACNR implements Allen-Bradley ControlNet redundant media communication for Flex I\/O architectures. The adapter provides dual ControlNet communication ports for redundant network connection and maintains data transfer at a 5 Mbps communication rate.\u003c\/p\u003e\n\u003cp\u003eThe module supports I\/O density scaling by allowing multiple Flex I\/O modules to connect through a single adapter interface. ControlNet network configuration requires correct node addressing, media installation, and controller-side communication setup.\u003c\/p\u003e\n\u003cp\u003eThe adapter architecture supports firmware flash compatibility verification between the communication adapter and connected control platform components. Status indicators provide visual monitoring for communication channels and I\/O operation states.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How many Flex I\/O modules can be connected to the 1794-ACNR?\u003cbr\u003eA: The adapter supports connection of up to eight Flex I\/O modules.\u003c\/p\u003e\n\u003cp\u003eQ: What communication interface is provided by the 1794-ACNR?\u003cbr\u003eA: The module provides two ControlNet BNC communication ports supporting redundant ControlNet media operation.\u003c\/p\u003e\n\u003cp\u003eQ: What is the operating power supply requirement for the 1794-ACNR?\u003cbr\u003eA: The adapter requires a 24 VDC nominal supply with an input voltage range of 19.2 to 31.2 VDC.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1794-ACNR on a compatible DIN rail mounting system and verify mechanical engagement before connecting field wiring. Confirm the 24 VDC supply polarity and voltage range prior to energizing the adapter.\u003c\/p\u003e\n\u003cp\u003eRoute ControlNet communication cables separately from high-voltage power conductors to reduce electromagnetic interference. Install ControlNet media according to network topology requirements and verify connector integrity at both communication ports.\u003c\/p\u003e\n\u003cp\u003eBefore system operation, verify adapter configuration, ControlNet node settings, FlexBus module connections, and communication status indicators. Confirm all connected I\/O modules are correctly recognized by the controller before enabling normal control functions.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43763170574426,"sku":"1794-ACNR","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1794-ACNR2.jpg?v=1785399436","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1794-acnr-flex-i-o-controlnet-redundant-media-adapter-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}