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Allen-Bradley 1769-L23-QBFC1B CompactLogix Packaged Controller

Allen-Bradley 1769-L23-QBFC1B CompactLogix Packaged Controller

Product Description

The 1769-L23-QBFC1B (Part Number: 1769-L23-QBFC1B) is an all-in-one "Packaged" Programmable Automation Controller (PAC) designed for small to mid-sized industrial applications that require a high density of integrated I/O. This controller belongs to the CompactLogix L23...

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Availability: Low stock: 99 left

SKU: 1769-L23-QBFC1B
Vendor: Allen Bradley
Category: CompactLogix Packaged Controller
Related Series:

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  • Carriers: Shipped via DHL, FedEx, UPS, or USPS.
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  • Guarantee: 30-day return window for in-stock, factory-sealed products.
  • Condition: Items must be unopened, unused, and in original packaging.
  • Authenticity: We guarantee 100% original and authentic hardware.

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Authenticity & Warranty

  • Genuine Guarantee: We supply only 100% original, brand-new, and factory-sealed industrial automation parts.
  • Full Coverage: Every component is backed by a 12-month comprehensive warranty from the date of purchase.
  • Traceability: All products come with original factory documentation and accessories for full industrial compliance.

Technical Support & Sourcing

  • Expert Assistance: Our technical team provides free consultation to help you verify compatibility for DCS and PLC systems.
  • Rare Part Sourcing: Specializing in obsolete and hard-to-find components from Allen-Bradley, Siemens, ABB, HIMA, and more.
  • Bulk Inquiries: Contact us at pambo@5gplc.com for volume pricing or customized project quotes.
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Product Description

The 1769-L23-QBFC1B (Part Number: 1769-L23-QBFC1B) is an all-in-one "Packaged" Programmable Automation Controller (PAC) designed for small to mid-sized industrial applications that require a high density of integrated I/O. This controller belongs to the CompactLogix L23 series and is uniquely equipped with 42 total I/O channels, including digital, analog, and high-speed counting capabilities. It is a highly cost-effective solution for standalone machine control or serial-based communication architectures.

Featuring 512 KB of user memory, the 1769-L23-QBFC1B supports sophisticated control logic through multiple programming languages such as Ladder Diagram (LD) and Structured Text (ST). Its hardware design emphasizes monitoring and maintenance, providing a comprehensive array of LED status indicators for everything from network link activity to individual I/O point status. The unit also includes two built-in RS-232 serial ports, enabling simultaneous communication with HMIs, barcode scanners, or other DF1/ASCII compatible devices.

Technical Specifications

Specification Details
Digital I/O 16 DC Inputs (24V DC Sink/Source) and 16 DC Outputs (24V DC Source)
Analog Inputs 4 channels (Differential or Single-ended); ±10V, 0-10V, 0-5V, 1-5V, and 0-20mA
Analog Outputs 2 channels (Single-ended); ±10V and 0-20mA
High-Speed Counters (HSC) 4 integrated counters
Physical Dimensions 105 mm x 249.4 mm x 118 mm 
Operating Temperature 0 to 60 °C (32 to 140 °F)

Application Scenarios

The 1769-L23-QBFC1B is an excellent choice for:

  • Material handling systems

  • Simple batching systems

  • HVAC controls

Its integrated analog and high-speed counter points make it particularly effective for controlling variable frequency drives (VFDs) and receiving high-speed encoder feedback in positioning tasks, all without the need for additional expansion modules.

Frequently Asked Questions

What is the maximum cable distance for the serial ports?

  • To ensure signal integrity and prevent data loss, the RS-232 serial cable length should be limited to a maximum of 15.2 meters (50 feet).

Can I expand the I/O beyond the integrated 42 channels?

  • Yes, the 1769-L23-QBFC1B supports the addition of up to two local 1769 Compact I/O modules on the right side of the controller.