AB 1769-L23E-QBFC1B CompactLogix Packaged Controller

Availability: 99 left in stock

Product Overview The Allen-Bradley 1769-L23E-QBFC1B functions as an all-in-one automation powerhouse, combining a high-performance CPU, an internal power supply, and extensive embedded...

SKU: 1769-L23-QBFC1B

Manufacturer: Allen Bradley
Product No.: 1769-L23-QBFC1B
Product Type: Programmable Automation Controllers
Product Origin: USA
Payment:T/T, Western Union
Weight: 1700g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Overview

The Allen-Bradley 1769-L23E-QBFC1B functions as an all-in-one automation powerhouse, combining a high-performance CPU, an internal power supply, and extensive embedded I/O into a single unit. We provide this controller as 100% Brand New, ensuring out-of-the-box reliability for complex standalone machinery. By integrating EtherNet/IP directly into the processor, this module eliminates the hardware overhead of separate communication bridges while supporting peer-to-peer messaging and seamless HMI integration.

Technical Specifications

The 1769-L23E-QBFC1B offers a 512 KB user memory capacity and a specialized I/O bank designed for multi-signal environments.

Feature	Specification
User Memory	512 KB (Volatile RAM with Battery Backup)
Embedded Digital I/O	16 DC Inputs / 16 DC Outputs (24V DC Sourcing)
Embedded Analog I/O	4 Inputs (Diff/Single-ended) / 2 Outputs
Analog Resolution	14-bit
High-Speed Counters	4 Hardware Counters
Communication Ports	1 x EtherNet/IP; 2 x RS-232 Serial (DF1/ASCII)
Analog Ranges	±10V, 0–10V, 0–5V, 0–20 mA, 4–20 mA
Power Dissipation	10.73 Watts
Dimensions	249 x 105 x 118 mm

Engineering Advantages

Space-Critical Consolidation: This "packaged" controller eliminates the need for separate I/O modules and power supplies for many applications. It shrinks the control panel footprint significantly, making it ideal for skid-mounted equipment and compact machine builds.
High-Speed Signal Processing: The four integrated hardware high-speed counters (HSC) handle rapid pulse inputs from encoders or flow meters. This localized processing reduces the load on the main CPU scan, ensuring precise timing for high-speed industrial events.
Unified Communication Hub: The integrated EtherNet/IP port provides high-speed data exchange across the enterprise. Simultaneously, the dual RS-232 ports allow the controller to maintain legacy connections to barcode scanners, printers, or older serial devices without extra interface hardware.
Advanced Analog Precision: With 14-bit resolution across both inputs and outputs, the 1769-L23E-QBFC1B manages delicate PID loops and variable frequency drive (VFD) speed referencing with high accuracy, supporting both voltage and current modalities.

FAQs

Can the 1769-L23E-QBFC1B support additional expansion I/O?

Yes. While it features 42 embedded I/O points, the controller supports 1769 Compact I/O expansion modules. You must respect the power supply distance rating and the total I/O capacity defined in the CompactLogix 5323E system limits.
How does the controller maintain its program during power loss?

The unit utilizes a 1769-BA Lithium battery to back up the volatile user memory. We recommend replacing the battery according to the maintenance schedule to prevent data loss during long-term power cycles.
What software is required to program this controller?

You program the 1769-L23E-QBFC1B using RSLogix 5000 or Studio 5000 Logix Designer software, depending on the firmware revision. This ensures compatibility with the standard Logix instruction set and tag-based programming architecture.
Are the analog inputs differential or single-ended?

The module provides flexibility, allowing you to wire the four analog inputs as either differential or single-ended. This capability helps mitigate common-mode noise in environments with high electrical interference.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.