{"product_id":"1764-28bxb1-allen-bradley-micrologix-1500-datasheet-technical-manual","title":"1764-28BXB1 Allen-Bradley MicroLogix 1500 Datasheet \u0026 Technical Manual","description":"\u003ch2\u003eAllen-Bradley 1764-28BXB1 MicroLogix 1500 Base Unit\u003c\/h2\u003e\n\u003cp\u003eConfigured for discrete I\/O execution in MicroLogix 1500 control systems, the \u003cstrong\u003eAllen-Bradley 1764-28BXB1\u003c\/strong\u003e (\u003cstrong\u003e1764\u003c\/strong\u003e MicroLogix 1500 Base Unit) provides direct physical\/electrical execution for 24 VDC digital input processing, relay switching, and transistor output control within PLC architectures.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1764-28BXB1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.98 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e90 x 87 x 180 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNot specified; 24 VDC line power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003ePLC Base Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Family\u003c\/td\u003e\n\u003ctd\u003eMicroLogix 1500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Configuration\u003c\/td\u003e\n\u003ctd\u003e28 point base module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 digital inputs, 24 VDC sink\/source\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e6 relay outputs + 6 transistor FET outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Power Output\u003c\/td\u003e\n\u003ctd\u003e24 VDC at 400 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interfaces\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP, RS-232 serial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity Rating\u003c\/td\u003e\n\u003ctd\u003e5-95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd\u003e3-5 G, 10-500 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Resistance\u003c\/td\u003e\n\u003ctd\u003e30 G panel mount, 15 G DIN rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL 508, CSA, CE, Class I Div 2 Groups A-D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP and I\/O Density Scaling Characteristics\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1764-28BXB1 base unit is part of the MicroLogix 1500 PLC platform and provides integrated discrete signal handling through a mixed I\/O configuration. The unit supports 16 digital inputs and 12 output points consisting of six relay channels and six FET transistor channels.\u003c\/p\u003e\n\u003cp\u003eThe MicroLogix 1500 architecture supports EtherNet\/IP and serial communication interfaces for PLC network integration. I\/O density scaling is managed through the controller platform and expansion configuration, allowing discrete machine control signals to be processed through the base unit hardware.\u003c\/p\u003e\n\u003cp\u003eThe module design supports firmware flash compatibility within the MicroLogix 1500 product family, allowing controller software revisions to maintain communication and I\/O execution compatibility.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What type of output circuits are available on the 1764-28BXB1?\u003cbr\u003eA: The base unit provides six relay outputs and six transistor FET outputs for discrete load switching.\u003c\/p\u003e\n\u003cp\u003eQ: What input voltage level is supported by the digital input channels?\u003cbr\u003eA: The digital inputs operate with 24 VDC field signals and support sink\/source input configurations.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 1764-28BXB1 communicate with Ethernet-based PLC networks?\u003cbr\u003eA: The available specifications list EtherNet\/IP and RS-232 serial communication interfaces for system integration.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1764-28BXB1 on a control panel or DIN rail mounting structure according to the MicroLogix 1500 installation requirements. Verify that the 24 VDC power wiring polarity matches the terminal designation before energizing the module.\u003c\/p\u003e\n\u003cp\u003eSeparate communication cables and low-level signal wiring from high-voltage power conductors and switching devices. Apply shielded cable practices where electromagnetic interference may affect signal integrity, with cable shields connected according to the control cabinet grounding standard.\u003c\/p\u003e\n\u003cp\u003eConfirm input and output terminal assignments before field wiring. Check relay and transistor output load compatibility with connected devices before commissioning the control system.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43655945977946,"sku":"1764-28BXB1","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1764-28BXB12.jpg?v=1784012080","url":"https:\/\/www.plcmasters.com\/products\/1764-28bxb1-allen-bradley-micrologix-1500-datasheet-technical-manual","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}