{"product_id":"allen-bradley-1756-dhrio-remote-i-o-module","title":"Allen-Bradley 1756-DHRIO ControlLogix Data Highway Plus\/Remote I\/O Communication Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1756-DHRIO is a specialized communication interface module designed for the ControlLogix platform. This module functions as a bridge between Data Highway Plus (DH+) networks and Remote I\/O (RIO) links, facilitating seamless data exchange and connectivity within complex industrial control architectures. It is engineered to support both the polling of remote I\/O and the messaging capabilities required for legacy network integration.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDual-channel communication interface for versatile network configuration.\u003c\/li\u003e\n\u003cli\u003eSupports Data Highway Plus (DH+) and Remote I\/O (RIO) protocols.\u003c\/li\u003e\n\u003cli\u003eSelectable communication baud rates: 57.6 Kbaud, 115.2 Kbaud, and 230.4 Kbaud.\u003c\/li\u003e\n\u003cli\u003eIntegrates directly into the ControlLogix chassis, drawing power from the backplane.\u003c\/li\u003e\n\u003cli\u003eSupports long-distance network cabling up to 3048 meters (10,000 feet) depending on the baud rate.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eCommunication Interface Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e850 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Rates\u003c\/td\u003e\n\u003ctd\u003e57.6, 115.2, 230.4 Kbaud\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Cable Length\u003c\/td\u003e\n\u003ctd\u003e3048 m (10,000 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Cable\u003c\/td\u003e\n\u003ctd\u003eBelden 89463 twinaxial (20 AWG)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.26 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the ControlLogix chassis is powered down before inserting or removing the 1756-DHRIO module to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eAlign the module carefully with the chassis slot guides and seat it firmly to ensure proper backplane connection.\u003c\/li\u003e\n\u003cli\u003eUse recommended Belden 89463 twinaxial cabling for optimal signal integrity and noise immunity.\u003c\/li\u003e\n\u003cli\u003eVerify that the communication cable shield is properly grounded at one end to minimize EMI interference.\u003c\/li\u003e\n\u003cli\u003eMaintain proper ventilation around the chassis to ensure the module operates within its specified temperature range.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the primary function of the 1756-DHRIO module?\u003c\/h3\u003e\u003cp\u003eThis module acts as a gateway, allowing a ControlLogix system to communicate with older legacy devices on a Data Highway Plus network or to act as a scanner for Remote I\/O racks.\u003c\/p\u003e\u003ch3\u003eCan this module be hot-swapped?\u003c\/h3\u003e\u003cp\u003eWhile the ControlLogix system supports Removal and Insertion Under Power (RIUP), it is generally recommended to follow your specific plant safety protocols and ensure the module is not actively processing critical I\/O before removal.\u003c\/p\u003e\u003ch3\u003eWhat cable is required for the DH+ network?\u003c\/h3\u003e\u003cp\u003eAllen-Bradley recommends using Belden 89463 twinaxial cable, which is rated for high-temperature environments and provides the necessary shielding for industrial network performance.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":44003959373914,"sku":"1756-DHRIO","price":94.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/wm_1_b9f7cff1-6542-4a24-bd05-b79bcd7a5f7a.jpg?v=1788390163","url":"https:\/\/www.spareoil.com\/es\/products\/allen-bradley-1756-dhrio-remote-i-o-module","provider":"SpareOil Automation","version":"1.0","type":"link"}