{"product_id":"allen-bradley-1756-dhri0-remote-io-interface-module","title":"Allen-Bradley 1756-DHRI0 Remote IO Interface Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-DHRI0 Remote I\/O Interface Module is a two‑channel DH+ and Remote I\/O scanner designed for ControlLogix backplanes, enabling reliable bridge and access between a DH+\/RIO network and a ControlLogix controller. The 1756‑DHRI0 is an alternate catalog number in the 1756‑DHRIO family, meaning it provides the same two-channel DH+\/RIO interface with the remote I\/O scanning features that let a single module manage multiple remote I\/O devices across a DH+ or Remote I\/O topology. Each channel can be configured for either DH+ or Remote I\/O, supporting typical DH+ data rates and routing capabilities to connect remote racks to the controller. Key specifications include up to 32 DH+ messages per channel, up to 32 logical remote I\/O connections per remote I\/O channel, and up to 16 block-transfer connections per channel, providing scalable I\/O traffic and efficient data transfers for mid‑ to large‑scale deployments. The module installs in a 1756 backplane rack and typically uses three terminal blocks for wiring the DH+ and\/or RIO connections, offering a compact, two‑channel solution for integrating legacy I\/O with modern ControlLogix systems. Ideal applications include connecting multiple DH+ or Remote I\/O devices to a single ControlLogix controller, enabling data exchange with legacy equipment, and supporting seamless integration of remote I\/O in automation architectures that require bridging disparate networks without a separate gateway device.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51658948641070,"sku":null,"price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_d23976c8-5144-4ff7-b524-90436bfa6652.jpg?v=1769525829","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1756-dhri0-remote-io-interface-module","provider":"PLG Automation ","version":"1.0","type":"link"}