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        • Lifecycle status

          Active / Available from OEM
          Apter Power coordinates exact-suffix checks, condition review, official documents, quotation, and sourcing for this mixed-I/O controller.

        1769-L24ER-QBFC1B

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        Switched EtherNet/IP networking gives Allen-Bradley 1769-L24ER-QBFC1B its defining edge: this packaged CompactLogix controller links universal sensor handling and fast event capture to a later network architecture.
        In Stock
        Ships by Wednesday, October 28
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 1769-L24ER-QBFC1B

        • Manufacturer:
          Allen-Bradley
        • Part Number:
          1769-L24ER-QBFC1B
        • Product Family:
          CompactLogix
        • Product Type:
          CompactLogix 5370 Packaged Mixed I/O Controller
        • Stock:
          1
        • User memory:
          750 KB
        • Embedded digital inputs:
          16 sinking/sourcing at 24 V DC
        • Embedded digital outputs:
          16 sourcing transistor
        • Universal analog inputs:
          4
        • Analog outputs:
          2
        • High-speed counter inputs:
          4
        • Maximum Compact I/O expansion:
          4 modules
        • Maximum EtherNet/IP nodes:
          8
        • Ethernet ports:
          2 embedded-switch ports
        • Programming port:
          USB
        • Power consumption:
          21 W
        • Operating temperature:
          0...60 °C
        • Weight:
          1.9 lbs (0.9 kg)
        • Estimated shipping dimensions:
          11.8x14x10.5cm
        • Tariff Code:
          8537101190
        • Country of origin:
          Malaysia
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Counter Inputs Analog Outputs I/O Expansion Product Applications

        Features:

        • Mixed-signal package: discrete, universal analog, analog output, and counter resources share the controller
        • Universal sensor support: documented voltage, current, resistance, RTD, and thermocouple modes are available
        • Resilient network option: the embedded switch supports linear or Device Level Ring wiring
        1769-L24ER-QBFC1B is distinguished by the variety of local signal tasks that can be configured without separate specialty modules.

        Its universal channels make project configuration and field wiring equally important because terminal appearance alone does not reveal the selected measurement mode.

        The full QBFC1B suffix should remain visible through quotation, service, and acceptance so the mixed-I/O package is not confused with the digital-only controller.

        Apter Power can coordinate official-document checks, quotation, and procurement support for 1769-L24ER-QBFC1B.
        Allen-Bradley 1769-L24ER-QBFC1B CompactLogix 5370 Packaged Mixed I/O Controller Manuals, Datasheets, Links
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Signal quality: keep pulse level, width, polarity, and sensor supply inside the documented input boundary.
        • Counter mode: retain direction, gating, reset, preset, and filter settings from the approved project.
        • Terminal identity: map every pulse and reference signal to the correct embedded channel.
        • Speed proof: compare counts with a known mechanical event at maximum operating rate.
        • Output range: preserve the configured voltage or current command and engineering-unit scaling.
        • Load boundary: match the connected actuator or receiver to the documented output circuit.
        • Safe behavior: record the expected command during controller faults, mode changes, and startup.
        • Loop test: prove the command at the terminal and at the receiving device before release.
        • Module boundary: keep the following Compact I/O extension within four modules.
        • Current demand: calculate the exact 5 V and 24 V load for the retained catalog sequence.
        • Distance rating: preserve module placement and required power-supply position.
        • Project alignment: match catalogs, firmware profiles, electronic keying, and physical terminals.
        • Mixed-signal machine control: combine embedded discrete logic with analog measurement and command.
        • Temperature and resistance acquisition: use the supported universal-input sensor modes.
        • High-speed event processing: acquire approved counter or encoder signals in the controller project.
        • Networked packaged control: exchange data through a documented linear or DLR EtherNet/IP system.
        Description
        1769-L24ER-QBFC1B extends the packaged CompactLogix concept to mixed-signal control. Its embedded resources bring discrete channels, universal analog measurement, analog command outputs, and high-speed counting into one controller and power-supply assembly.

        A dual-port embedded switch connects 1769-L24ER-QBFC1B to a linear or Device Level Ring EtherNet/IP design, while USB and removable storage support project maintenance. The network arrangement remains one controller interface rather than two independently addressed subnets.

        The engineering value of 1769-L24ER-QBFC1B comes from preserving several signal disciplines in one controlled configuration. Sensor mode, output scaling, counter behavior, and discrete machine states must remain traceable to the exact QBFC1B project.
        Revisions

        Revision Part #

        Also known as

        1769-L24ER-QBFC1B Series A
        1769-L24ER-QBFC1B/A, Series A
        Get Parts Quote
        Alternative Names
        Allen-Bradley 1769-L24ER-QBFC1B mixed I/O controller Rockwell Automation 1769-L24ER-QBFC1B AB 1769 L24ER QBFC1B 1769L24ERQBFC1B CompactLogix CompactLogix universal analog controller 1769-L24ER-QBFC1B 1769-L24ER-QBFC1B counter PLC
        Technical notes
        Universal inputs on 1769-L24ER-QBFC1B can report believable but incorrect values when the project mode does not match the field sensor. Verify signal type, excitation or lead arrangement, and engineering scaling against the approved source and a known reference; stop commissioning if any channel identity is uncertain.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        How can an incorrect sensor mode on 1769-L24ER-QBFC1B affect machine operation?
        The controller may convert the signal with the wrong range or linearization. Check sensor type, terminal arrangement, channel mode, scaling, alarms, and a known reference before operation.
        What should be investigated when 1769-L24ER-QBFC1B misses counter pulses only at high speed?
        Review pulse amplitude and width, input filter, counter mode, grounding, shield routing, sensor supply, terminal assignment, and the mechanical source at maximum rate.
        Why can an analog command from 1769-L24ER-QBFC1B be correct in the project but wrong at the actuator?
        Check output mode, scaling, load, loop wiring, common reference, receiving-device range, fault behavior, and the value measured at both ends of the circuit.
        Can the two Ethernet connectors on 1769-L24ER-QBFC1B isolate separate IP networks?
        No. They are embedded-switch ports for the documented linear or DLR arrangement; use a controller officially supporting separate network interfaces when Dual-IP isolation is required.
        What should a buyer request before approving a sourced 1769-L24ER-QBFC1B?
        Request full catalog and series photographs, firmware, connector condition, traceability, and a bench report covering representative digital, universal-input, analog-output, counter, and network functions.
        Which test sequence is safest after replacing 1769-L24ER-QBFC1B?
        Verify identity and project first, then prove discrete I/O, each used analog mode, analog commands, counters, Ethernet diagnostics, and finally the controlled machine sequence.

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