Description

Technical Specifications

• Product Model: 1769-L24ER-QB1B
• Brand: Allen-Bradley (Rockwell Automation)
• Warranty: One Year
• Input Power: 10–30 VDC (rated 24 VDC embedded power supply)
• Operating Temperature: 0°C to +60°C
• Storage Temperature: -40°C to +85°C
• Response Speed: High-speed program cyclic execution, EtherNet/IP real-time transmission
• Protection Class: IP20
• User Memory: 750KB program/data storage
• Embedded I/O: 16 DC digital inputs + 16 DC sinking digital outputs
• Communication Interfaces: 2× EtherNet/IP ports (DLR supported), 1× USB programming port, SD card slot
• Supported Protocols: EtherNet/IP, TCP/IP, CIP industrial protocol
• Network Capacity: 8 EtherNet/IP connections, up to 120 TCP connections
• Expansion Capacity: Supports maximum 4 sets of 1769 series I/O expansion modules
• Dimensions: 115mm × 118mm × 105mm
• Mounting: Standard DIN rail installation
• 

Product Overview

The 1769-L24ER-QB1B is a CompactLogix 5370 L2 integrated programmable logic controller launched by Rockwell Automation, designed for mid-size machine automation and discrete process control systems. This all-in-one PLC solves common automation pain points such as limited built-in I/O points, insufficient network redundancy, inconvenient program backup, and poor system expandability for small and medium-sized production equipment. Equipped with dual EtherNet/IP ports with Device Level Ring function, 750KB internal memory and 32-point embedded digital I/O, it realizes stable equipment logic control, distributed I/O communication and upper computer data interaction. Widely adopted by machinery manufacturers, automation system integrators and factory technical maintenance teams for packaging machines, material handling lines, assembly equipment and small-scale production process control. As a core mainstream controller of the CompactLogix platform, it delivers simplified system architecture, reliable network operation and convenient on-site maintenance.

Core Functional Features

1. Dual Redundant EtherNet/IP with DLR Technology Dual independent Ethernet ports support Device Level Ring network topology, automatically bypass faulty nodes to avoid network breakdown, greatly improving the stability of industrial communication in harsh workshop environments.
2. Integrated 32-Point Digital I/O & Flexible Expansion Built-in 16DI+16DO direct digital terminals can control basic on-site sensors and actuators directly; expand up to 4 external 1769 I/O modules to add analog signals, high-speed counting and motion control functions freely.
3. Convenient Program Storage & Debugging Comes with a 1GB SD card (expandable to 2GB) for program backup, firmware upgrade and data logging; the front USB port enables fast offline programming and parameter downloading without extra network wiring.