{"product_id":"allen-bradley-1756-dhrio-communication-interface-module","title":"Allen-Bradley 1756-DHRIO Communication Interface Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-DHRIO is a ControlLogix Data Highway Plus\/Remote I\/O communication interface module that acts as both a DH+ gateway and a Remote I\/O (RIO) scanner, enabling a ControlLogix chassis to exchange data with DH+ networks and remote I\/O devices. It provides two DH+ channels (Channel A and Channel B) that can be used to interface with DH+ networks, and it can route messages through as many as four DH+ networks across three chassis. The module is designed to be installed in a ControlLogix chassis alongside other interface modules (for example, an EtherNet module) to facilitate cross-network bridging, and its dual-channel configuration supports flexible DH+ topologies; if both Channel A and Channel B are using DH+, you will not be able to create child modules under the 1756-DHRIO. In addition to bridging DH+ networks, the 1756-DHRIO enables connection to multiple remote I\/O adapters, effectively extending ControlLogix reach to legacy DH+ devices. Note that Rockwell Automation announced the discontinuation of the DH+\/RIO communications module as of December 31, 2024.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51658948411694,"sku":null,"price":218.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_e34e4d6d-3393-4fcc-b4b4-ce274eb593e3.jpg?v=1769525825","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1756-dhrio-communication-interface-module","provider":"PLG Automation ","version":"1.0","type":"link"}