{"product_id":"allen-bradley-1769-l23e-qb1b-compactlogix-controller","title":"Allen Bradley 1769-L23E-QB1B CompactLogix Controller","description":"\u003ch2\u003eAllen Bradley 1769-L23E-QB1B CompactLogix Controller\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen Bradley 1769-L23E-QB1B\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1769-L23E-QB1B\u003c\/strong\u003e CompactLogix Controller, operates as a dedicated hardware component for PLC control execution and Ethernet\/RS-232 communication within CompactLogix automation networks. It provides integrated digital input and output processing with local I\/O expansion capability.\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\u003e1769-L23E-QB1B\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\u003e1.94 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eBus Current: 1 A at 5 VDC; 710 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCompactLogix Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eCompactLogix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e512 KB PLC controller memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEthernet Communication\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRS-232 Communication\u003c\/td\u003e\n\u003ctd\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Inputs\u003c\/td\u003e\n\u003ctd\u003e16 inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Outputs\u003c\/td\u003e\n\u003ctd\u003e16 outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Indicators\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Capacity\u003c\/td\u003e\n\u003ctd\u003eSupports 2 Bulletin 1769 CompactLogix I\/O modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Battery\u003c\/td\u003e\n\u003ctd\u003e1769-BA Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Right End Cap\u003c\/td\u003e\n\u003ctd\u003e1769-ECR Right End Cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Controller Door\u003c\/td\u003e\n\u003ctd\u003e1769-RDQB Door\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProfinet \/ EtherNet\/IP Deterministic Network Integration\u003c\/h3\u003e\n\u003cp\u003eThe 1769-L23E-QB1B controller is designed for CompactLogix control architectures with integrated Ethernet communication capability. The Ethernet interface supports controller communication within EtherNet\/IP networks, while the RS-232 port provides serial communication access for compatible devices.\u003c\/p\u003e\n\u003cp\u003eThe controller supports local I\/O density scaling through connection with Bulletin 1769 CompactLogix I\/O modules. The integrated 16 digital inputs and 16 digital outputs provide direct discrete signal processing without requiring additional base I\/O hardware.\u003c\/p\u003e\n\u003cp\u003eFirmware flash compatibility should be verified between the controller revision, programming environment, and connected CompactLogix modules before system deployment.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: What communication interfaces are available on the 1769-L23E-QB1B?\u003cbr\u003eA: The controller provides Ethernet and RS-232 communication interfaces for network and serial device connections.\u003c\/p\u003e\n\u003cp\u003eQ: How much user memory is available in the controller?\u003cbr\u003eA: The 1769-L23E-QB1B provides 512 KB PLC controller user memory.\u003c\/p\u003e\n\u003cp\u003eQ: How many local I\/O modules can be connected to this controller?\u003cbr\u003eA: The controller supports connection of up to 2 Bulletin 1769 CompactLogix I\/O modules.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the controller on the CompactLogix assembly using the specified mounting hardware and maintain correct module alignment within the 1769 platform.\u003c\/p\u003e\n\u003cp\u003eRoute Ethernet and RS-232 communication cables separately from high-voltage power conductors to reduce electrical interference. Apply standard industrial grounding practices for shielded communication cables where applicable.\u003c\/p\u003e\n\u003cp\u003eVerify backplane power requirements before adding expansion modules. Confirm the installed battery, end cap, and controller door accessories match the controller configuration before commissioning.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43664969236570,"sku":"1769-L23E-QB1B","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1769-L23E-QB1B2.jpg?v=1784173049","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1769-l23e-qb1b-compactlogix-controller","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}