{"product_id":"allen-bradley-1769-l24er-qb1b-compactlogix-embedded-i-o-cpu-controller","title":"Allen-Bradley 1769-L24ER-QB1B CompactLogix Embedded I\/O CPU Controller","description":"\u003ch2\u003eAllen-Bradley 1769-L24ER-QB1B CompactLogix 5370 Controller\u003c\/h2\u003e\n\u003cp\u003eConfigured for integrated discrete and analog signal execution in CompactLogix 5370 automation networks, the \u003cstrong\u003eAllen-Bradley 1769-L24ER-QB1B\u003c\/strong\u003e (\u003cstrong\u003e1769-L24ER-QB1B\u003c\/strong\u003e CompactLogix Controller) provides direct physical\/electrical execution. The hardware assembly processes control logic across 32 independent tasks, coordinates up to 4 motion axes over industrial networks, and drives local expansion channels via a unified backplane interface. Dual integrated Ethernet ports execute Device Level Ring (DLR) protocols to maintain execution continuity during physical network link disruptions.\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1769-L24ER-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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.91 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard CompactLogix 5370 chassis footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e12 W maximum power dissipation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Power Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VDC isolated embedded power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current Capacity\u003c\/td\u003e\n\u003ctd\u003e1.0 A @ 5 VDC local expansion bus limit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Current Draw\u003c\/td\u003e\n\u003ctd\u003e1.54 A @ 5 VDC \/ 0.95 A @ 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e750 KB to 1 MB application allocation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmbedded Digital I\/O\u003c\/td\u003e\n\u003ctd\u003e14 digital inputs (24 VDC) \/ 10 digital outputs (24 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmbedded Analog I\/O\u003c\/td\u003e\n\u003ctd\u003e2 analog inputs (voltage\/current) \/ 2 analog outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocal Expansion Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 4 local 1769 Compact I\/O modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Interfaces\u003c\/td\u003e\n\u003ctd\u003e2 x 10\/100 Mbps Ethernet ports \/ 1 x USB 2.0 interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotion Axes\u003c\/td\u003e\n\u003ctd\u003eUp to 4 axes via CIP Motion over EtherNet\/IP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e30 V continuous insulation boundary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, UL, CSA, IECEx, ATEX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Network Routing and I\/O Density Scaling\u003c\/h3\u003e\n\u003cp\u003eThe processing unit utilizes an EtherNet\/IP deterministic network architecture to manage real-time I\/O density scaling alongside motion synchronization via CIP Sync. The embedded hardware configuration combines discrete logic blocks, analog loops, and high-speed counting circuits into a single physical block, limiting the required footprint inside the electrical cabinet. System variables match firmware flash compatibility profiles within Studio 5000 Logix Designer software, ensuring that time-critical application data maintains predictable backplane bus communication velocity across both embedded channels and local 1769 expansion modules.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What are the exact structural configuration limits for expanding local hardware channels?\u003c\/p\u003e\n\u003cp\u003eA: The embedded backplane driver permits a maximum expansion of 4 local 1769 Compact I\/O modules directly attached to the right side of the controller chassis.\u003c\/p\u003e\n\u003cp\u003eQ: How does the controller respond to a hardware ring break on the network ports?\u003c\/p\u003e\n\u003cp\u003eA: The integrated dual ports implement native Device Level Ring (DLR) topology, which automatically detects the physical media fault and reroutes standard IP and CIP Motion packets within milliseconds without shifting the processor into a fault state.\u003c\/p\u003e\n\u003cp\u003eQ: What input power is required to drive the internal electronics and backplane bus?\u003c\/p\u003e\n\u003cp\u003eA: The hardware operates from an isolated 24 VDC external input source connected directly to the embedded power terminals, drawing up to 1.54 A @ 5 VDC for internal rail utilization.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eGrounding Continuity: Secure the integrated chassis ground lug directly to a clean, unpainted section of the DIN rail or backpanel to ensure proper drainage of common-mode electrical noise.\u003c\/li\u003e\n\u003cli\u003eBackplane Current Verification: Calculate the total 5 VDC current requirements of the selected local expansion modules to confirm the cumulative load does not exceed the 1.0 A local expansion bus limit.\u003c\/li\u003e\n\u003cli\u003eThermal Airflow Management: Install the hardware assembly in a horizontal orientation, providing at least 50 mm of open space above and below the module cooling vents to ensure natural convection cooling.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":44420287856739,"sku":"1769-L24ER-QB1B","price":310.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/220._0169accc-74c5-4ed2-9b8e-f439bb105889.jpg?v=1785316922","url":"https:\/\/www.autocontrolglobal.com\/products\/allen-bradley-1769-l24er-qb1b-compactlogix-embedded-i-o-cpu-controller","provider":"AutoControl Global","version":"1.0","type":"link"}