Programmable Logic Controllers | Allen-Bradley 1762-L24BXBR MicroLogix 1200

Allen-Bradley 1762-L24BXBR is a compact 24-point programmable logic controller (PLC) from the MicroLogix 1200 family designed for industrial machine control and standalone automation. Powered by 24 V DC, it combines digital inputs with a hybrid output arrangement of relay contacts and solid-state FET channels to support mixed-load control applications.

Digital Input Configuration and High-Speed Features

The controller provides 14 total 24 V DC digital inputs arranged as 10 standard inputs and 4 fast inputs. The standard inputs accept traditional binary field devices like limit switches and pushbuttons, while the fast inputs handle high-speed pulse counting, frequency measurement, or high-speed latching signals.

Hybrid Output Arrangement and System Integration

The output section features 10 total points split into 5 relay outputs, 4 standard 24 V DC FET outputs, and 1 fast 24 V DC FET output. The relay channels offer isolated switching for AC or DC loads, whereas the transistor (FET) outputs deliver fast switching response, with the single fast FET output capable of pulse train generation or high-duty cycling. An integrated programming/HMI port allows simultaneous communications for monitoring and local operator displays.

Technical Specifications

Frequently Asked Questions

Q: What is the primary purpose of combining relay and FET outputs on the 1762-L24BXBR? A: The hybrid configuration allows higher-current or isolated loads to switch via the 5 relay channels while high-speed or high-frequency switching devices (such as pulse-driven motion or solid-state actuators) utilize the 5 FET outputs.

Q: How does the power requirement of the 1762-L24BXBR differ from AC-powered MicroLogix 1200 models? A: The 1762-L24BXBR requires a direct 24 V DC power source to operate the main controller logic and input circuits, making it suitable for direct integration into 24 V DC industrial control cabinets.