ALLEN BRADLEY 1769-L24ER-QB1B CONTROLLER

High-Performance Control with Allen-Bradley 1769-L24ER-QB1B CompactLogix Controller

The Allen-Bradley 1769-L24ER-QB1B is a powerful CompactLogix controller designed for high-speed, real-time automation applications. This processor module brings reliable control, fast communication, and compact design into one efficient unit for a range of industrial environments.

Equipped with embedded I/O and Ethernet connectivity, this controller is a versatile solution for machines that require precise control and fast data exchange. It supports two Ethernet axes, making it ideal for motion applications without the need for additional communication modules.

Communication flexibility is one of its standout features. The 1769-L24ER-QB1B includes two Ethernet/IP ports, one USB port, and a dedicated RS232 port. These allow easy programming, data access, and integration with existing plant networks.

Supporting multiple protocols like ASCII, DH485, DF1, and Ethernet/IP, this controller ensures broad compatibility across a range of Rockwell Automation and third-party devices. It's designed to reduce integration time while increasing system scalability.

With 16 embedded 24 VDC digital inputs, the module offers immediate control capabilities without requiring additional input modules. This compact form factor saves space in control panels and reduces wiring complexity.

Programming is highly flexible, with options to use Relay Ladder Logic, Structured Text, Function Block, and Sequential Function Chart (SFC). These languages enable users to build programs suited to various machine control needs.

The controller supports up to 32 tasks, and each task can handle up to 100 programs. This provides substantial capacity for multitasking and managing diverse automation operations simultaneously.

Memory is robust, featuring 750 KB of user memory along with a 1 GB non-volatile SD card (1784-SD1) included with the unit. A larger 2 GB SD card (1784-SD2) is also available if more storage is needed for logging or backup.

This module is available in Series A and B versions, giving you flexibility when matching to existing systems or future expansions. It works reliably in industrial environments and supports DIN rail mounting for fast, secure installation.

The controller is designed for use with copper wire rated at 90°C. It supports solid wires from 22 to 14 AWG and stranded wires from 22 to 16 AWG, offering compatibility with standard industrial wiring practices.

Its compact build—at just 11x8x6 inches and approximately 3 pounds—makes it easy to fit into small enclosures without sacrificing performance. Despite the small size, it delivers robust control capabilities typically found in larger systems.

For replacements or expansions, the terminal block can be swapped out with part number 1769-RTBN18, allowing for quick servicing and minimal downtime. This supports the Allen-Bradley focus on maintainability and system longevity.

From an application standpoint, this controller is perfect for small to mid-size machines that demand high-speed control with advanced programming features. It brings modularity and scalability to OEMs and integrators alike.

Whether you're programming safety tasks with ladder logic or building complex logic using Structured Text or Function Block, the 1769-L24ER-QB1B supports your engineering needs with reliability and efficiency.

By combining control, communication, and embedded I/O in one unit, it reduces your system’s footprint and overall hardware costs. You get powerful automation capabilities without the complexity of piecing together multiple modules.

In environments where speed and response time matter, this CompactLogix controller stands out with its Ethernet axis support and real-time processing power. It’s built for performance and engineered for precision.

It also fits neatly into Allen-Bradley’s broader Logix architecture, offering seamless integration with Studio 5000 and other Rockwell software tools. This improves development time and system consistency across applications.

Built by Rockwell Automation, the 1769-L24ER-QB1B is part of a trusted family of industrial controllers. It upholds the brand’s commitment to reliability, performance, and user-friendly operation in demanding environments.

For industries ranging from packaging and assembly to material handling and robotics, this controller delivers the control and connectivity needed for modern automation tasks.

Its embedded memory, communication versatility, and programming flexibility make it a go-to choice for engineers looking to optimize both space and performance.

If you're upgrading or building a new automation system, this unit simplifies installation and configuration while offering advanced features for real-time control.

With this controller, you’re not just getting a piece of hardware—you’re investing in a smarter, faster, and more efficient automation platform built to grow with your needs.