Allen-Bradley 1769-L23E-QB1B CompactLogix Packaged Controller

Product Overview

The Allen-Bradley 1769-L23E-QB1B functions as a high-performance, all-in-one packaged controller within the CompactLogix family. It integrates a CPU, a power supply, and a fixed I/O bank into a single small-footprint chassis. This module excels in small to medium-scale applications where space is premium but EtherNet/IP connectivity remains non-negotiable. We offer this unit as 100% Brand New and Original, ensuring the highest level of system integrity for your automation rack.

Technical Specifications

Engineering Advantages

• Reduced Footprint: The "Packaged" design eliminates the need for a separate power supply and individual I/O cards. This consolidation saves up to 40% of cabinet space compared to modular PLC setups.

• Seamless Network Integration: The onboard EtherNet/IP port facilitates real-time data exchange, remote programming, and HMI connectivity without requiring additional communication adapters.

• Simplified Maintenance: Clear status indicators on the front panel provide instant diagnostics for I/O states, controller health, and network activity, slashing troubleshooting time during downtime events.

• Scalable Architecture: Although it features fixed I/O, the bus supports two additional 1769 expansion modules. This allows engineers to add specialized analog or motion modules without replacing the base controller.

FAQs

• Does the 1769-L23E-QB1B require a separate power supply? No. This model includes an integrated power supply. You simply provide the primary voltage to the controller’s power terminals to energize both the CPU and the local I/O bank.

• Can I operate this controller without an end cap? No. The 1769-L23E-QB1B requires a 1769-ECR right end cap to terminate the CompactBus. The controller will report a bus fault and stay in a non-running state if the end cap is missing.

• What software is required for programming? You program this controller using RSLogix 5000 or Studio 5000 Logix Designer, depending on the firmware revision. It supports standard ladder logic, structured text, and function block programming.

• How do I retain the user program during a power cycle? The controller utilizes the 1769-BA lithium battery to maintain the volatile user memory and the real-time clock when the system loses main power. We recommend replacing the battery periodically to prevent data loss.