{"product_id":"1791-iobb-1791-block-i-o-source-output-module-allen-bradley","title":"1791-IOBB 1791 Block I\/O Source Output Module | Allen Bradley","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen Bradley 1791-IOBB\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a compact, self-contained digital I\/O solution within the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1791 Block I\/O\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eseries. It provides high-density interfacing for PLC systems, allowing engineers to distribute control closer to field devices. This module specifically manages 6 sourcing outputs, converting controller logic into 24V DC power to drive solenoids, actuators, and indicators. Although the manufacturer has shifted this series to obsolete status, we provide this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal stock to maintain your existing infrastructure without expensive system migrations.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen Bradley \/ Rockwell Automation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1791-IOBB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Voltage Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20.5 to 27.6V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Outputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e6 Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSourcing (Source)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRated Output Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 to 30V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMaximum Power Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12.39 Watts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMaximum Thermal Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e42.4 BTU\/hr\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0°C to 55°C (32°F to 131°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5% to 95% (Non-condensing)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.69 lbs (0.31 kg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimized Distributive Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1791-IOBB utilizes a \"Block\" architecture that eliminates the need for a separate chassis. This design reduces internal cabinet wiring and allows for mounting in localized junction boxes closer to the mechanical process.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Efficiency Sourcing Outputs:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe sourcing output configuration delivers positive voltage directly to the load. This standardizes wiring across the system and simplifies troubleshooting by allowing technicians to measure voltage against a common ground.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEffective Thermal Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDespite its compact footprint, the module handles up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e42.4 BTU\/hr\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eof thermal dissipation. This internal thermal regulation prevents the overheating of electronic components even during high-duty cycle operations in standard industrial enclosures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLegacy Infrastructure Longevity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAs a direct replacement for discontinued units, the 1791-IOBB restores system functionality instantly. It removes the risk associated with used or refurbished parts, ensuring your legacy SLC or PLC-5 systems continue to operate with factory-new reliability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs the 1791-IOBB compatible with standard 24V DC power supplies?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The module operates within a range of 20.5 to 27.6V DC. It integrates seamlessly with standard industrial power supplies, though you must ensure the supply provides stable current to accommodate the 12.39W maximum power dissipation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the primary difference between a sourcing and sinking output?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1791-IOBB provides sourcing outputs, meaning the module \"sources\" or provides the positive DC voltage to the field device. The device then connects to the negative common. This differs from sinking modules, which provide a path to ground.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I handle the \"Discontinued\" status for my maintenance plan?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBy purchasing our\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal stock, you bypass the typical lead times and reliability risks of finding obsolete parts. This allows you to stock critical spares and avoid the massive capital expenditure of a full PLC system upgrade.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan this module withstand high-humidity environments?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module operates safely in environments with 5% to 95% relative humidity, provided it remains non-condensing. For extreme conditions, ensure the enclosure provides adequate protection against moisture ingress to prevent short circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52803941564725,"sku":"1791-IOBB","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1791-IOBB1.png?v=1777517494","url":"https:\/\/www.5gplc.com\/products\/1791-iobb-1791-block-i-o-source-output-module-allen-bradley","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}