PLCs, Power Supplies & Others

All-in-One Control Solution for Compact Applications

The Allen-Bradley 1769-L24ER-QB1B combines a powerful controller with integrated I/O in a single unit. This CompactLogix controller belongs to the 5370 series from Rockwell Automation. It delivers processing capability alongside embedded digital and analog I/O points. Engineers select this unit for applications requiring compact, self-contained control.

Detailed Technical Specifications

This section presents the complete technical parameters of the Allen-Bradley 1769-L24ER-QB1B. We emphasize precise processing characteristics and I/O specifications for accurate system integration. The design prioritizes integration and communication capability.

Physical Dimensions & Weight

Accurate physical data supports proper cabinet layout and DIN rail configuration. The Allen-Bradley 1769-L24ER-QB1B features a compact, integrated design for efficient space utilization.

• Dimensions (H x W x D): 118 mm x 170 mm x 87 mm

• Weight: 1.05 kg

• Origin: Made in USA (Rockwell Automation Manufacturing Facilities)

Memory Architecture and Application Storage

The controller provides 1 MB of user memory for application code and data storage. An additional 0.5 MB of I/O memory handles tag-based data management. This memory capacity supports medium-sized control applications with complex logic. Users can develop sophisticated programs without memory constraints.

Embedded Digital I/O Configuration

The controller integrates 14 digital inputs and 10 digital outputs directly on the unit. Inputs accept 24 VDC signals from switches, sensors, and pushbuttons. Outputs provide 24 VDC at 0.5 A per channel for driving relays and indicators. This onboard I/O handles many local control requirements without additional modules.

Embedded Analog I/O Capabilities

Two analog input channels accept 0-10V or 4-20 mA signals from field sensors. Two analog output channels provide 0-10V or 4-20 mA for controlling actuators. Users configure each channel individually through the programming software. This flexibility eliminates the need for separate analog modules in many applications.

Ethernet/IP Communication Architecture

Two Ethernet ports with an embedded switch support device-level ring and linear topologies. Users can connect multiple controllers, HMIs, and I/O devices through a single network. The dual-port design simplifies system architecture by reducing external switches. Consequently, installation costs and complexity decrease significantly.

Motion Control Capabilities

The 1769-L24ER-QB1B supports integrated motion control for up to four axes. Users can control servo drives directly through the Ethernet/IP network. The processor handles coordinated motion, electronic gearing, and cam profiling. This capability eliminates the need for separate motion controllers in many applications.

USB Port for Programming and Diagnostics

A USB port provides convenient access for programming and firmware updates. Users connect directly to the controller without network configuration. This port also serves as a diagnostic interface for troubleshooting. Maintenance personnel benefit from simple, direct connectivity during commissioning.

Component Layout and Status Indication

The Allen-Bradley 1769-L24ER-QB1B features a clear front panel with comprehensive status LEDs. Indicators show power, run, fault, and communication status at a glance. Individual LEDs display the state of each embedded input and output point. This visual feedback simplifies troubleshooting and system verification.

Installation and System Expansion

Mounting this controller requires a standard 35 mm DIN rail or panel mounting. It serves as the leftmost unit in a 1769 I/O system. Users can add up to 8 local I/O modules for system expansion. This modular approach allows scalable automation solutions from a single controller.

Power Requirements and Energy Efficiency

The unit requires an external 24 VDC power supply for operation. It draws 500 mA from the 5 VDC backplane to power connected I/O modules. Total power consumption remains efficient for the integrated functionality. Users benefit from manageable power budgets in control cabinets.

Manufacturer Quality Standards

Allen-Bradley manufactures the 1769-L24ER-QB1B under strict quality control protocols. Each unit undergoes comprehensive testing for processing integrity and I/O performance. Therefore, users receive a product ready for immediate deployment. This commitment to quality aligns with Rockwell Automation reliability expectations.

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