Allen Bradley 1769-L24ER-QB1B CompactLogix 5370 L2 Ethernet Controller

Product Introduction

The Allen Bradley 1769-L24ER-QB1B CompactLogix 5370 L2 Ethernet Controller is a compact programmable automation controller designed for small to medium-sized machine control systems. As part of the CompactLogix 5370 L2 series, it integrates controller processing capability, digital I/O, and EtherNet/IP communication into a single compact unit, making it suitable for applications where space efficiency and reliable performance are required.

This controller includes built-in digital inputs and outputs, allowing direct connection to field devices such as sensors, switches, relays, and actuators. With integrated I/O, the controller simplifies system architecture and reduces the need for additional hardware modules in many automation environments.

The unit also features EtherNet/IP communication, supporting multiple network connections for communication with HMIs, drives, distributed I/O systems, and supervisory control platforms. Its communication capability enables efficient data exchange and supports modern network-based automation systems.

With 750 KB of memory, the controller provides sufficient capacity for machine control programs, data handling, and communication tasks. The device also supports expansion through additional 1769 I/O modules, offering flexibility for future system upgrades. The included 1 GB SD card allows convenient storage of programs, firmware updates, and backup data.

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Product Specifications

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Applications

• Packaging machinery automation
The controller is commonly used in packaging machines where reliable digital I/O control and Ethernet communication are required for machine coordination.

• Material handling systems
Suitable for conveyor systems, automated sorting equipment, and transfer mechanisms that require real-time device control.

• Small manufacturing equipment
Used in compact production machines such as labeling equipment, assembly stations, and inspection systems.

• Industrial monitoring and control
The controller can collect input signals from sensors and control actuators in industrial monitoring applications.

• OEM machine building
Machine builders often use this controller due to its compact design and flexible expansion capability.

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Advantages

• Compact controller design
The integrated processor and I/O structure reduces cabinet space requirements and simplifies system installation.

• Flexible expansion capability
Support for up to four 1769 I/O expansion modules allows the system to grow as application needs increase.

• Reliable Ethernet communication
The built-in EtherNet/IP interface enables efficient communication with industrial devices and control systems.

• High connection capacity
Support for multiple EtherNet/IP and TCP connections allows integration with complex automation networks.

• Integrated power supply
The embedded 24 VDC power supply simplifies system wiring and reduces additional hardware requirements.

FAQ

1. How is the EtherNet/IP network configured on this controller?
   Network parameters and device communication settings are configured through the CompactLogix programming environment.

2. How can expansion modules be added to the controller?
   Additional 1769 I/O modules can be installed beside the controller to extend digital or analog input and output capability.

3. What is the function of the SD card in this controller?
   The SD card is used for program storage, firmware updates, and backup of controller data.

4. Can the controller communicate with HMI devices over Ethernet?
   Yes, the EtherNet/IP interface allows communication with compatible operator interface systems.

5. How are digital input signals processed by the controller?
   Digital inputs detect field device signals and convert them into logic states used in the control program.

6. What types of devices can be controlled through the digital outputs?
   Digital outputs are typically used to drive relays, solenoids, motors, and indicator devices.

7. How does the controller handle communication with multiple devices?
   The controller supports multiple EtherNet/IP and TCP connections for simultaneous data exchange with network devices.

8. Can this controller be used in distributed automation systems?
   Yes, it can operate as part of a networked automation architecture using EtherNet/IP communication.

9. How are system diagnostics monitored?
   Diagnostic information can be accessed through the programming software and controller status indicators.

10. What types of automation equipment commonly use this controller?
    Compact machines, automated conveyors, and OEM equipment frequently use this controller.

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