Allen Bradley 1769-L24ER-QB1B CompactLogix Controller
Allen Bradley 1769-L24ER-QB1B CompactLogix Controller
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Brand:Allen Bradley PLC Item No.:Allen Bradley 1769-L24ER-QB1B Product Origin:USA Product Dimensions:118 × 115 × 105 mm Product Weight:0.8 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Allen Bradley 1769-L24ER-QB1B is a CompactLogix 5370 L2 series controller designed for small to mid-sized industrial automation systems requiring integrated control, embedded I/O, and advanced EtherNet/IP communication. It is widely used in OEM machinery, production lines, and distributed automation systems where performance, connectivity, and scalability are critical.
This model combines a powerful Logix processor with built-in digital I/O and dual Ethernet ports, enabling flexible network topologies such as Device Level Ring (DLR) for enhanced reliability in industrial Ethernet environments.
Technical Specifications
Specification Item
Details
Manufacturer
Allen Bradley (Rockwell Automation)
Model Number
1769-L24ER-QB1B
Product Family
CompactLogix 5370 L2
Controller Type
Integrated PLC with embedded I/O
User Memory
750 KB
Embedded Inputs
16 × 24V DC digital inputs
Embedded Outputs
16 × 24V DC digital outputs
Output Type
Transistor (DC sourcing)
Communication Ports
2 × EtherNet/IP ports
Ethernet Features
Supports Device Level Ring (DLR), linear and star topologies
Expansion Capability
Up to 4 Compact I/O modules (1769 series)
USB Port
1 × USB programming port
Network Capacity
Up to 8 EtherNet/IP nodes
TCP Connections
Up to 120 TCP connections
Power Supply
24V DC
Memory Backup
SD card support (up to 2 GB)
Programming Software
Studio 5000 Logix Designer
Real-Time Clock
Yes (battery-backed)
Isolation
Industrial-grade electrical isolation
Operating Temperature
0°C to 60°C
Storage Temperature
-40°C to 85°C
Mounting Type
DIN rail / panel mount
Dimensions
Approx. 118 × 115 × 105 mm
Weight
Approx. 0.6–0.8 kg
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Industrial Applications
The 1769-L24ER-QB1B is widely used in industrial automation systems that require high-speed control, integrated networking, and scalable I/O expansion.
Typical applications include:
OEM machine automation systems
Packaging and labeling machines
Conveyor and material handling systems
Small to mid-size production lines
HVAC and building automation systems
Pump and motor control systems
Process skids and modular equipment
Factory communication-based control systems
Its dual Ethernet architecture makes it especially suitable for connected industrial environments requiring redundancy and flexible network design.
Key Advantages
Dual Ethernet with DLR Support
Provides two EtherNet/IP ports enabling Device Level Ring topology for improved network reliability and fault tolerance.
Integrated Control and I/O
Combines PLC processing, embedded digital I/O, and communication in a single compact platform, reducing system complexity.
High Memory Capacity
Offers 750 KB user memory, suitable for more complex logic and data handling compared to entry-level controllers.
Scalable Expansion
Supports up to 4 Compact I/O modules for flexible system growth without controller replacement.
Industrial Communication Flexibility
Supports EtherNet/IP networking with multiple nodes and high connection capacity for HMI, SCADA, and remote I/O integration.
Technical FAQs
1. What is the 1769-L24ER-QB1B used for?
It is a CompactLogix PLC used for controlling industrial machines and automation systems with integrated Ethernet communication.
2. Does it include built-in I/O?
Yes. It includes 16 DC inputs and 16 DC outputs built into the controller.
3. What communication does it support?
It supports EtherNet/IP with dual Ethernet ports and Device Level Ring (DLR) capability.
4. What is its memory capacity?
It has approximately 750 KB of user memory.
5. Can it support expansion modules?
Yes. It supports up to 4 Compact I/O modules (1769 series).
6. What software is used for programming?
It is programmed using Studio 5000 Logix Designer.
7. Is it suitable for OEM machines?
Yes. It is widely used in OEM machine control due to its compact and integrated architecture.
8. Does it support industrial network redundancy?
Yes. DLR support allows ring network topology for improved resilience.
9. What is its power requirement?
It operates on a 24V DC industrial power supply.
10. Why is the 1769-L24ER-QB1B widely used in industry?
Because it combines a mid-range Logix controller, embedded I/O, dual Ethernet communication, and scalable expansion in a compact industrial automation platform.
