{"product_id":"allen-bradley-1756-rio-controllogix-remote-i-o-scanner-module","title":"Allen-Bradley 1756-RIO ControlLogix Remote I\/O Scanner Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e1756-RIO (1756RIO)\u003c\/strong\u003e is a ControlLogix Remote I\/O scanner module developed by Allen-Bradley for bridging legacy Remote I\/O networks with modern Logix controllers. The module enables a ControlLogix chassis to act as a scanner on classic RIO networks, allowing migration without replacing installed field I\/O. It supports block transfer messaging, discrete data exchange, and rack addressing used in legacy PLC architectures. Engineers deploy this module in refineries, power generation facilities, and heavy material handling systems where phased upgrades reduce downtime. The 1756-RIO preserves installed infrastructure while enabling high-speed data exchange and deterministic control integration.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe 1756-RIO operates as a Remote I\/O scanner within the ControlLogix backplane. The module communicates with legacy I\/O adapters using blue hose Remote I\/O cabling and supports standard rack addressing modes. It manages block transfer read and write instructions for analog and intelligent devices. The hardware supports selectable baud rates and flexible rack size configuration. The module handles discrete input and output mapping directly into Logix memory. It also supports partial rack addressing, improving compatibility with mixed legacy installations. Backplane communication occurs through the ControlLogix chassis, eliminating external gateway hardware.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"\"\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\u003e1756-RIO\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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eControlLogix Remote I\/O Scanner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current\u003c\/td\u003e\n\u003ctd\u003e1.2 A at 5.1 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e6.1 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eRemote I\/O Blue Hose\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaud Rate\u003c\/td\u003e\n\u003ctd\u003e57.6 kbps \/ 115.2 kbps \/ 230.4 kbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRack Addressing\u003c\/td\u003e\n\u003ctd\u003e1\/4, 1\/2, 3\/4, Full Rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiscrete Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 32 racks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e30 V continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.32 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e145 x 35 x 140 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan 1756-RIO replace a PLC-5 RIO scanner directly?\u003c\/strong\u003e\u003cbr\u003eYes. The module functions as a scanner and communicates with existing Remote I\/O adapters. Logix mapping must be configured.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module support block transfer instructions?\u003c\/strong\u003e\u003cbr\u003eYes. The 1756-RIO supports block transfer read and write messaging for analog and intelligent I\/O modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat cable type is required for Remote I\/O communication?\u003c\/strong\u003e\u003cbr\u003eThe module uses standard Remote I\/O blue hose cable with daisy chain topology.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 1756-RIO compatible with ControlLogix redundancy?\u003c\/strong\u003e\u003cbr\u003eYes. The module supports redundancy when installed in mirrored chassis with identical configuration.\u003c\/p\u003e\n\u003ch3\u003eEngineering Installation Guide\u003c\/h3\u003e\n\u003ch4\u003eStep 1: Verify Chassis Power Budget\u003c\/h4\u003e\n\u003cp\u003eConfirm the ControlLogix power supply supports the 1756-RIO current requirement. The module draws backplane current from 5.1 VDC. Check total chassis load before installation to avoid power supply overload. High density racks may require higher capacity power supply.\u003c\/p\u003e\n\u003ch4\u003eStep 2: Select Proper Slot Location\u003c\/h4\u003e\n\u003cp\u003eInstall the 1756-RIO in a standard ControlLogix slot. Avoid placing the module next to high heat modules such as analog outputs or power supplies. Maintain airflow spacing inside the chassis for stable thermal performance.\u003c\/p\u003e\n\u003ch4\u003eStep 3: Configure Module Node and Baud Rate\u003c\/h4\u003e\n\u003cp\u003eSet the Remote I O baud rate to match existing adapters. Supported speeds include 57.6 kbps, 115.2 kbps, and 230.4 kbps. All devices on the Remote I O network must use identical communication speed.\u003c\/p\u003e\n\u003ch4\u003eStep 4: Prepare Remote I O Cable Wiring\u003c\/h4\u003e\n\u003cp\u003eUse approved blue hose Remote I O cable. Implement daisy chain topology only. Do not use star or ring wiring. Maintain consistent cable impedance across the trunk line.\u003c\/p\u003e\n\u003ch4\u003eStep 5: Install Network Termination\u003c\/h4\u003e\n\u003cp\u003eInstall termination resistors at both ends of the Remote I O trunk. Improper termination causes communication retries and rack faults. Verify termination before applying power.\u003c\/p\u003e\n\u003ch4\u003eStep 6: Configure Rack Addressing\u003c\/h4\u003e\n\u003cp\u003eMatch rack addressing with legacy Remote I O adapters. The 1756-RIO supports full rack, half rack, and quarter rack addressing. Incorrect configuration causes I O mapping errors.\u003c\/p\u003e\n\u003ch4\u003eStep 7: Grounding and Shielding\u003c\/h4\u003e\n\u003cp\u003eConnect cable shield to chassis ground at one point only. Avoid multiple ground connections. Route Remote I O cable away from motor drives and high voltage wiring.\u003c\/p\u003e\n\u003ch4\u003eStep 8: Insert Module into Chassis\u003c\/h4\u003e\n\u003cp\u003eInsert the 1756-RIO firmly into the backplane. Ensure top and bottom locking tabs engage fully. Loose seating may cause intermittent backplane communication faults.\u003c\/p\u003e\n\u003ch4\u003eStep 9: Power Up and Initial Diagnostics\u003c\/h4\u003e\n\u003cp\u003eApply power to the chassis. Check module status LED. Verify scanner enters run state. Monitor communication counters and rack status.\u003c\/p\u003e\n\u003ch4\u003eStep 10: Commissioning and Validation\u003c\/h4\u003e\n\u003cp\u003eDownload configuration from Studio 5000. Validate discrete mapping and block transfer messaging. Confirm all Remote I O racks update correctly. Monitor system for communication retries.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695189913963,"sku":"1756-RIO","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1756-rio-remote-i-o-network-module-yon3nuu21u5_96991a92-f27e-4265-a39a-dac5ac02950d.jpg?v=1766114592","url":"https:\/\/www.plcprotech.com\/products\/allen-bradley-1756-rio-controllogix-remote-i-o-scanner-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}