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AB 1769-L23E-QB1B Product Details

Oct 25, 2025 Allen‑Bradley

Allen‑Bradley 1769-L23E-QB1B is a programmable logic controller(PLC)module of the Rockwell Automation(Allen-Bradley)CompactLogix series.The following is a detailed introduction to the module.

Allen‑Bradley 1769-L23E-QB1B

Basic information

Brand:Allen-Bradley(Rockwell Automation)

Model:1769-L23E-QB1B

Series:CompactLogix 5370 L2 Series

Technical specifications

Input and output:16 24VDC inputs and 16 24VDC outputs.

Memory:512KB user memory for storing programs and data.

Communication interface

1 EtherNet/IP Ethernet communication port,supporting Ethernet communication.

1 serial RS-232 communication port,supporting ASCII,DF1 full/half duplex,DF1 wireless modem,DH-485 protocol,and MODBUS protocol supported by ladder logic.

DeviceNet communication is optional.

Expansion capability:Up to 2 1769 compact I/O modules can be expanded.

Power supply:Built-in DC 24V power supply.

Features

High performance:The CompactLogix platform is known for its compact structure and excellent performance.The 1769-L23E-QB1B module is no exception and is suitable for various high-performance application scenarios.

Easy to configure and program:The module supports offline and online programming,and provides maintenance and debugging tools to facilitate engineers to configure and program.

Support for multiple communication protocols:Through the built-in communication interface,the module can communicate and exchange data with other control systems,PLCs,HMIs and other devices to achieve device interconnection.

Distributed I/O architecture support:Supports distributed I/O architecture using Allen-Bradley distributed I/O devices,such as point I/O and Flex I/O product series on Ethernet,which improves the flexibility and scalability of the system.

Allen‑Bradley 1769-L23E-QB1B

Application areas

Manufacturing:Used to control and monitor various equipment and processes on the production line to improve production efficiency and quality.

Power:Used for automated control and monitoring of power systems to ensure stable operation of power systems.

Chemical industry:used for automated control and data collection in the chemical production process to improve production safety and efficiency.

Automated production line:as the core controller of the automated production line,it realizes the automated operation of equipment and real-time data collection.

Telecommunications and energy management:used for automated control and monitoring of telecommunications and energy management systems to improve system reliability and efficiency.

Allen-Bradley 1769-L23E-QB1B CompactLogix 5370 L2 Integrated Controller
Allen-Bradley
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Allen-Bradley 1769-L23E-QB1B

Nov 15, 2025

The Allen Bradley 1769-L23E-QB1B is a CompactLogix 5370 L2 integrated controller. It belongs to the CompactLogix programmable automation controller (PAC) family. This unit features built-in Ethernet and RS-232 communication ports.

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