{"product_id":"1769-l23e-qb1b-allen-bradley-compactlogix-packaged-controller","title":"1769-L23E-QB1B Allen Bradley CompactLogix Packaged Controller","description":"\u003ch2\u003eAllen Bradley 1769-L23E-QB1B CompactLogix Packaged Controller\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-density local process execution and field device synchronization, the \u003cstrong\u003eAllen Bradley 1769-L23E-QB1B\u003c\/strong\u003e (\u003cstrong\u003e1769-L23E-QB1B\u003c\/strong\u003e CompactLogix Packaged Controller) provides direct physical\/electrical execution. The unit contains embedded digital and analog I\/O channels alongside integrated serial and network links to interface directly with sensors, switches, and distributed variable speed drives without external bus expansion hardware.\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\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1769-L23E-QB1B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAllen Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.91 kg (2.00 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard 1769 L2 Form Factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.5 W power dissipation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUser Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 MB (Note: certain sub-revisions utilize 512 KB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNon-volatile Storage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 GB SD card included (expandable to 2 GB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEmbedded Digital I\/O\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 digital inputs, 16 digital outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEmbedded Analog I\/O\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 analog inputs, 2 analog outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBackplane Current Draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 A at 5 VDC, 710 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLocal Expansion Limits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 2 additional 1769 I\/O modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Ports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDual Ethernet (DLR capable), 1 RS-232, 1 USB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Network Nodes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 20 EtherNet\/IP nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 V continuous, basic insulation type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVibration Tolerance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 to 500 Hz, 5 g acceleration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Network and Firmware Synchronization\u003c\/h3\u003e\n\u003cp\u003eThe 1769-L23E-QB1B governs local system architecture loop execution by regulating backplane bus communication velocity across a maximum of 32 distinct programming tasks. Engineered for Profinet \/ EtherNet\/IP deterministic networks, the integrated dual Ethernet ports use Device Level Ring (DLR) mechanism to sustain automation network uptime during physical cable damage. During routine initialization sequences, the controller validates internal firmware flash compatibility to check logic instructions against physical I\/O allocations (100 programs per task limit). The hardware features strict I\/O density scaling boundaries, constraining local expansion slots to prevent voltage drop across the integrated backplane connection rails.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How do the physical expansion limitations affect the installation of additional 1769 modules?\u003c\/p\u003e\n\u003cp\u003eA: The 1769-L23E-QB1B electrical layout restricts the system to a maximum of 2 additional local 1769 Compact I\/O modules. Attempting to install more than 2 local expansion modules causes a bus configuration failure and stops the processor backplane bus communication velocity from initiating.\u003c\/p\u003e\n\u003cp\u003eQ: What actions are required regarding the hardware termination of the right side of the module array?\u003c\/p\u003e\n\u003cp\u003eA: The final module in the physical architecture requires the installation of a 1769-ECR right end cap. Operating the system without this component leaves the backplane termination circuit open, resulting in an unrecoverable major controller fault.\u003c\/p\u003e\n\u003cp\u003eQ: Which power source configurations drive this specific packaged controller model?\u003c\/p\u003e\n\u003cp\u003eA: The 1769-L23E-QB1B functions via an integrated 24 VDC nominal power input terminal built directly into the housing. Unlike larger L3 controllers that accept independent modular AC supplies, this packaged version requires a external 24 VDC industrial power source.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure Grounding Path:\u003c\/strong\u003e Fasten a low-resistance copper conductor from the ground lug terminal of the unit straight to the single point ground block of the enclosure cabinet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Continuity Maintenance:\u003c\/strong\u003e Terminate the shield drain wires of all embedded analog input and output cables at the nearest enclosure grounding panel, keeping the exposed wire lengths under 25 mm (1 inch).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Sizing Restrictions:\u003c\/strong\u003e Strip and secure field connections utilizing copper wires sized between 22-14 AWG for solid lines, or 22-16 AWG for stranded lines, ensuring all conductors operate with a temperature rating above 90 deg C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Dissipation Margins:\u003c\/strong\u003e Maintain a minimal clearance boundary of 50 mm (2 inches) around all outer surfaces of the housing to facilitate vertical natural convection airflow during full load operating periods.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":44414854299747,"sku":"1769-L23E-QB1B","price":310.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/198._aafb07c9-7752-45ba-a146-59aa06fb5942.jpg?v=1785227601","url":"https:\/\/www.autocontrolglobal.com\/products\/1769-l23e-qb1b-allen-bradley-compactlogix-packaged-controller","provider":"AutoControl Global","version":"1.0","type":"link"}