{"product_id":"1756-rio-allen-bradley-controllogix-remote-i-o-scanner-adapter-module","title":"1756-RIO | Allen-Bradley | ControlLogix Remote I\/O Scanner\/Adapter Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-RIO\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eacts as a critical communication bridge between modern ControlLogix platforms and legacy Remote I\/O (RIO) networks. This module enables a ControlLogix controller to manage existing RIO field devices, including 1771 I\/O racks and specialized adapters, without requiring a complete hardware overhaul. It supports both scanner and adapter modes, allowing for flexible master\/slave configurations across the plant floor. We offer this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and factory-original\u003c\/strong\u003e, ensuring seamless timing and signal integrity for your mission-critical legacy migrations.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 1756-RIO facilitates high-speed data exchange across the backplane while maintaining strict synchronization with field devices.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNetwork Support\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRemote I\/O (RIO)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRack Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 32 Physical Racks\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eData Transfer Types\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDigital, Analog, Block-Transfer, Specialty\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Draw (5.1V DC)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e450 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Draw (24V DC)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.5 Watts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eThermal Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8.5 BTU\/hr\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50V (Continuous)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSlot Width\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSingle (1) Slot\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMessage-Free Data Transfer:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1756-RIO handles complex data exchanges—including digital, analog, and block transfers—without requiring explicit \"Message\" (MSG) instructions in the controller logic. This hardware-level management reduces CPU overhead and simplifies code development.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExtended Legacy Life:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis module allows facilities to upgrade their primary controllers to ControlLogix while retaining reliable 1771 I\/O or 1794-ASB drops. This phased migration strategy slashes downtime and minimizes immediate capital expenditure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDual-Mode Versatility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEngineers can configure the 1756-RIO as either a Scanner (controlling other devices) or an Adapter (acting as a slave to a remote PLC). This flexibility supports complex peer-to-peer data sharing between legacy and modern PLC architectures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Capacity Networking:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupporting up to 32 physical racks and 10 scheduled I\/O connections, a single 1756-RIO manages extensive distributed I\/O layouts. Its low thermal dissipation (8.5 BTU\/hr) prevents heat buildup in densely packed ControlLogix chassis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan the 1756-RIO handle Block Transfers for analog modules?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The module fully supports Block Transfer (BT) protocols, allowing the ControlLogix controller to read and write multi-word data to analog and specialty modules located on the RIO network.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhere should I install the module in the 1756 chassis?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou can install the 1756-RIO in any available slot within the ControlLogix chassis. It draws power directly from the backplane and does not require a specific slot assignment for scanner functionality.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require a separate power supply for the RIO link?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 1756-RIO draws its operating power (5.1V and 24V DC) from the chassis backplane. The \"Blue Hose\" RIO network cable carries the signals; however, ensure you install proper terminating resistors (150 Ohm or 82 Ohm) at both ends of the physical RIO link.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this unit compatible with the 1756-L8 series controllers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 1756-RIO maintains compatibility across the ControlLogix family, providing a stable interface for L6, L7, and L8 controllers to communicate with legacy field drops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52846951301429,"sku":"1756-RIO","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1756-RIO.png?v=1778212466","url":"https:\/\/www.5gplc.com\/products\/1756-rio-allen-bradley-controllogix-remote-i-o-scanner-adapter-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}