{"product_id":"allen-bradley-1769-l23e-qbfc1b-compactlogix-packaged-controller","title":"Allen-Bradley 1769-L23E-QBFC1B CompactLogix Packaged Controller","description":"\u003cp\u003eConfigured for real-time discrete and analog signal execution in industrial automation networks, the \u003cstrong\u003eAllen-Bradley 1769-L23E-QBFC1B\u003c\/strong\u003e (\u003cstrong\u003e1769-L23E-QBFC1B\u003c\/strong\u003e Programmable Automation Controller) provides direct physical\/electrical execution.\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-L23E-QBFC1B\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\u003e2.00 lbs (0.91 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard CompactLogix Packaged Form Factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 60 deg C (32 to 140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e512 KB (Battery-Backed RAM via 1769-BA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNon-volatile Memory\u003c\/td\u003e\n\u003ctd\u003eNot Supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmbedded Discrete I\/O\u003c\/td\u003e\n\u003ctd\u003e16 x 24 VDC Inputs, 16 x 24 VDC Outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmbedded Analog I\/O\u003c\/td\u003e\n\u003ctd\u003e4 x Inputs (Differential\/Single-Ended), 2 x Outputs (Single-Ended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecialized I\/O\u003c\/td\u003e\n\u003ctd\u003e4 x High-Speed Counters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Interfaces\u003c\/td\u003e\n\u003ctd\u003e1 x Ethernet RJ45 Port (10\/100 Mbps), 1 x RS-232 Serial Port (9-pin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Protocols\u003c\/td\u003e\n\u003ctd\u003eEtherNet\/IP (CIP, TCP\/IP), Serial (DF1, ASCII)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Expansion\u003c\/td\u003e\n\u003ctd\u003eUp to 2 x 1769 Compact I\/O Modules (No expansion banks supported)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity and EtherNet\/IP Performance\u003c\/h3\u003e\n\u003cp\u003eThe 1769-L23E-QBFC1B processes embedded I\/O channels directly on its internal execution bus while extending deterministic CIP packet bridging through its integrated 10\/100 Mbps EtherNet\/IP interface. Utilizing non-volatile firmware logic structures, the controller scales local I\/O density by hosting up to two additional 1769 expansion modules directly on the primary rack without intermediary bus extension cables. Ethernet interface velocity and RS-232 serial driver latencies are governed by firmware flash compatibility standards to maintain synchronized program execution across distributed node architectures.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is memory retained on the 1769-L23E-QBFC1B during power interruptions?\u003c\/p\u003e\n\u003cp\u003eA: Program memory is maintained via battery-backed RAM using an internal 1769-BA lithium battery. The controller does not support non-volatile memory cards. Battery replacement must be performed while 24 VDC system power is applied to prevent memory loss.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum I\/O expansion capability for this packaged controller?\u003c\/p\u003e\n\u003cp\u003eA: The 1769-L23E-QBFC1B supports a maximum of two (2) local 1769 Compact I\/O expansion modules mounted directly adjacent to the controller chassis. Additional expansion banks or bank-to-bank cables are not supported.\u003c\/p\u003e\n\u003cp\u003eQ: Which communication protocols are supported on the built-in serial port?\u003c\/p\u003e\n\u003cp\u003eA: The embedded 9-pin RS-232 serial port supports DF1 full-duplex, DF1 half-duplex, and ASCII protocols at baud rates up to 19.2 Kbps using a 1756-CP3 communication cable.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eSecure the unit to a grounded DIN rail or panel-mount directly using M4 mounting hardware. Verify that the DIN rail bonding path maintains a low-impedance ground braid connection to functional earth (FE).\u003c\/li\u003e\n\u003cli\u003eMaintain a minimum vertical and horizontal spacing clearance of 50 mm (2 inches) around the chassis to support passive thermal heat sink dissipation profiles.\u003c\/li\u003e\n\u003cli\u003eWire digital and analog signal conductors using separate cable raceways to avoid cross-talk suppression failures. Ground signal cable shields at a single point near the panel entry terminal.\u003c\/li\u003e\n\u003cli\u003eRoute 24 VDC main power supply conductors using stranded copper wire rated for 75 deg C or higher, ensuring correct polarity connection at the primary power terminal strip.\u003c\/li\u003e\n\u003cli\u003eTerminate the local 1769 bus structure by locking the right-side bus connector and securing the end cap assembly prior to applying system power.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52640727564568,"sku":"1769-L23E-QBFC1B","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/3483\/3688\/files\/1769-L23E-QBFC1B2_Cocoai_e3c3909d-4f2c-4eea-802f-f601111d3435.jpg?v=1789005534","url":"https:\/\/www.innoplcsync.com\/products\/allen-bradley-1769-l23e-qbfc1b-compactlogix-packaged-controller","provider":"InnoPLC Sync Co., Ltd.","version":"1.0","type":"link"}