AB 1769-L23E-QBFC1B
AB 1769-L23E-QBFC1B
AB 1769-L23E-QBFC1B
AB 1769-L23E-QBFC1B
AB 1769-L23E-QBFC1B
AB 1769-L23E-QBFC1B
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    Discontinued

1769-L23E-QBFC1B

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Allen-Bradley 1769-L23E-QBFC1B is a 512 KB CompactLogix packaged controller with EtherNet/IP, serial communication, embedded digital and analog I/O, and high-speed counter functions.
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Technical specifications for 1769-L23E-QBFC1B

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1769-L23E-QBFC1B
  • Product Family:
    CompactLogix
  • Product Type:
    CompactLogix Packaged Controller
  • Stock:
    1
  • User memory:
    512 KB
  • Expansion I/O modules:
    Maximum 2, limited by current draw
  • Available 5 V DC bus current:
    450 mA
  • Current draw at 24 V DC:
    500 mA
  • Power dissipation:
    13.58 W
  • Embedded digital inputs:
    16, 24 V DC sink/source, two isolated groups
  • Embedded digital outputs:
    16, 24 V DC source
  • Embedded analog I/O:
    4 inputs and 2 outputs
  • High-speed counter:
    Embedded counter inputs and outputs
  • Ethernet:
    RJ45 EtherNet/IP port
  • Serial port:
    CH0 RS-232; DF1, DH-485, or ASCII; fully isolated; 38.4 kbps max
  • Power input:
    24 V DC nominal; 19.2-31.2 V DC range
  • Mounting:
    DIN rail or panel
  • Operating temperature:
    0 to 60 °C
  • Weight:
    1.22 kg
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • 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 Embedded I/O Communications Power Applications
  • Combines a 512 KB CompactLogix controller with embedded digital, analog, and high-speed I/O
  • Provides EtherNet/IP and an isolated RS-232 serial channel for machine connectivity
  • Supports up to two Compact I/O expansion modules within the documented current budget

1769-L23E-QBFC1B is an Allen-Bradley compactlogix packaged controller used in CompactLogix control systems.

The controller provides a compact machine-control platform where processing, networking, local I/O, and limited Compact I/O expansion must fit a small panel footprint.

Before installation or replacement, verify Series A or B, firmware and Studio 5000 compatibility, user program and tags, Ethernet addressing, serial protocol, embedded I/O wiring and scaling, high-speed counter setup, battery, 24 V DC power, expansion-current budget, and replacement strategy.

Availability, condition, price, and shipping time for 1769-L23E-QBFC1B are confirmed during quotation.

Allen-Bradley 1769-L23E-QBFC1B CompactLogix Packaged 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.

  • Sixteen DC inputs can be wired as sink or source in two isolated groups
  • Sixteen 24 V DC source outputs provide local discrete control
  • Four analog inputs, two analog outputs, and high-speed counter functions are integrated
  • The embedded Ethernet port supports EtherNet/IP communication
  • The isolated CH0 RS-232 port supports DF1, DH-485, or ASCII operation
  • Network addresses, serial settings, and controller firmware must match the saved project
  • The controller uses a nominal 24 V DC supply
  • Only 450 mA of 5 V DC expansion-bus current is available
  • A maximum of two expansion modules is allowed and remains subject to current calculation
  • Compact machine control with integrated digital, analog, and high-speed I/O
  • EtherNet/IP-connected skids requiring a local serial device interface
  • Standalone machine control requiring embedded high-speed counter functions
Description
1769-L23E-QBFC1B is an Allen-Bradley compactlogix packaged controller for the CompactLogix platform.

It combines a CompactLogix processor, 24 V DC power supply, sixteen DC inputs, sixteen source outputs, four analog inputs, two analog outputs, high-speed counter functions, EtherNet/IP, and an isolated serial port in one package.

Before installation or replacement, confirm Series A or B, firmware and Studio 5000 compatibility, user program and tags, Ethernet addressing, serial protocol, embedded I/O wiring and scaling, high-speed counter setup, battery, 24 V DC power, expansion-current budget, and replacement strategy.
Revisions

Revision Part #

Also known as

1769-L23E-QBFC1B Ser A
1769-L23E-QBFC1B/A, Series A, Rev A
1769-L23E-QBFC1B Ser B
1769-L23E-QBFC1B/B, Series B, Rev B
Alternative Names
1769-L23E-QBFC1B 1769 L23E QBFC1B 1769L23EQBFC1B Allen-Bradley 1769-L23E-QBFC1B AB 1769-L23E-QBFC1B CompactLogix 1769-L23E-QBFC1B
Technical notes
Allen-Bradley 1769-L23E-QBFC1B is discontinued; verify Series A or B, firmware and project compatibility, Ethernet and serial settings, embedded I/O wiring and scaling, high-speed counters, battery, 24 V DC supply, and the two-module expansion power budget.
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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.
Can Allen-Bradley 1769-L23E-QBFC1B be replaced without downloading the project?
No. Preserve and validate the controller project, firmware revision, Ethernet settings, serial protocol, I/O configuration, scaling, and high-speed counter setup before hardware replacement.
How many expansion modules can Allen-Bradley 1769-L23E-QBFC1B support?
Rockwell specifies a maximum of two, and the actual combination must remain within the controller's 450 mA available 5 V DC bus-current budget.
Does Allen-Bradley 1769-L23E-QBFC1B include nonvolatile memory?
The official technical data lists no optional nonvolatile memory, so program backup, battery condition, and a verified offline project are especially important.
Can Allen-Bradley 1769-L23E-QBFC1B use both Ethernet and serial communication?
Yes. It provides an EtherNet/IP port and an isolated CH0 RS-232 port, but both interfaces must be configured for the protocols and addresses used by the application.
What should be checked if Allen-Bradley 1769-L23E-QBFC1B analog values are incorrect?
Verify terminal assignments, voltage or current mode, loop power, shielding, scaling, engineering units, common reference, and the saved controller configuration.
Why can an Allen-Bradley 1769-L23E-QBFC1B expansion fail after adding a module?
The controller has a restricted expansion count and power budget; an otherwise compatible module can exceed available 5 V DC current or require an unsupported layout.
What should be recorded before replacing Allen-Bradley 1769-L23E-QBFC1B?
Save the Series, firmware, full Studio 5000 project, IP settings, serial settings, I/O wiring, analog scaling, counter configuration, battery status, power calculation, and expansion layout.

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