{"product_id":"allen-bradley-1756-dhrio-dh-rio-communication-module","title":"Allen-Bradley 1756-DHRIO DH RIO Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-DHRIO is a two-channel DH+\/Remote I\/O communication module for ControlLogix systems that enables data exchange between a controller and DH+ devices as both a bridge and UR I\/O scanner. Each channel (A and B) can be configured for DH+ network access or Universal Remote I\/O mode, in which case the module acts as a UR I\/O scanner on the network. DH+ data rates on the module reach up to 230.4 kbps, and each remote I\/O channel supports up to 32 logical rack connections and 16 block transfer connections, allowing flexible I\/O layouts across multiple remote racks. The 1756-DHRIO mounts in a 1756 backplane within a ControlLogix chassis and can route messages through multiple networks and chassis, bridging DH+\/RIO domains to the controller. Note that Rockwell Automation discontinued the 1756-DHRIO as of December 31, 2024, making it a legacy solution best suited for existing installations rather than new designs.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51658948444462,"sku":null,"price":225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_a5765e51-4d4e-4011-b745-5fa7aed3eaf1.jpg?v=1769525825","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1756-dhrio-dh-rio-communication-module","provider":"PLG Automation ","version":"1.0","type":"link"}