{"product_id":"allen-bradley-1764-28bxb-micrologix-1500-controller-base-unit","title":"Allen-Bradley 1764-28BXB MicroLogix 1500 Controller Base Unit","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1764-28BXB\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the high-performance hardware foundation for the MicroLogix 1500 controller system. This base unit provides the essential power supply, integrated I\/O, and the interface for the removable 1764 processor (LRP or LSP). We provide this unit in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New, original factory condition\u003c\/strong\u003e, ensuring your legacy infrastructure benefits from zero-hour reliability and full manufacturer specifications. It manages 28 onboard I\/O points, specifically optimized for 24V DC environments requiring high-speed response.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\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\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\u003eI\/O Configuration\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e28 Total (16 Inputs \/ 12 Outputs)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24V DC Sink\/Source (including 8 High-Speed)\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\u003e6 Relay \/ 4 Standard 24V DC FET \/ 2 High-Speed FET\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Supply Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProcessor Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1764-LSP, 1764-LRP\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eExpansion Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSupports up to 16 1769 Compact I\/O Modules\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eHigh-Speed Counter\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e20 kHz (on designated inputs)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDIN Rail or Panel Mount\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eEngineering Advantages\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Speed Pulse Capabilities:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1764-28BXB features dedicated high-speed FET outputs. These allow for Pulse Train Output (PTO) and Pulse Width Modulation (PWM), enabling direct control of stepper drives and servo motors without additional motion modules.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHybrid Output Flexibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis base unit combines rugged mechanical relays for high-load switching with solid-state FET outputs for high-frequency cycling. This hybrid design eliminates the need for separate digital output cards in many standard machine control applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModular Processing Power:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe split-module design allows you to upgrade the processor (via the 1764-LRP\/LSP) or replace the power\/base unit independently. This minimizes maintenance costs and facilitates rapid hardware swaps during troubleshooting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRobust Expansion Bus:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe integrated 1769-compliant bus allows the 1764-28BXB to power and communicate with up to 16 expansion modules. This scalability transforms a compact MicroLogix unit into a high-density controller capable of managing complex analog and digital arrays.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndustrial Noise Immunity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAdvanced optical isolation protects the internal logic from field-side electrical transients. This ensures stable operation near variable frequency drives (VFDs) and large contactors common in harsh manufacturing environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this unit include the processor (CPU)?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 1764-28BXB is the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBase Unit\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eonly. You must install a 1764-LSP or 1764-LRP processor into the front slot to make the PLC operational.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use 120V AC to power this specific model?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 1764-28BXB requires a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e24V DC\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003einput. If your application only provides 120V AC, you would require the 1764-24AWA base unit instead.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum frequency of the high-speed inputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe unit supports 20 kHz high-speed counters on the first 8 inputs. This makes it ideal for interfacing with high-resolution encoders or high-speed proximity sensors for flow metering and positioning.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a refurbished or open-box item?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAbsolutely not. We guarantee this unit is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e, arriving in the original Allen-Bradley factory box with the original factory seal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":53118060036280,"sku":"1764-28BXB","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1764-28BXB.jpg?v=1774603755","url":"https:\/\/www.globalpetroparts.com\/products\/allen-bradley-1764-28bxb-micrologix-1500-controller-base-unit","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}