Allen-Bradley 1762-L24BXBR MicroLogix 1200 PLC Controller

Product Overview

The 1762-L24BXBR is a compact programmable logic controller from Allen-Bradley’s MicroLogix 1200 series. It offers 24 integrated I/O points, including 10 standard 24VDC inputs and 4 fast inputs, plus 5 relay outputs, 4 FET outputs, and 1 high-speed FET output. This PLC supports up to six expansion I/O modules for flexible system scaling.

Application Scenarios

This controller suits small to medium-sized automation tasks in manufacturing lines, packaging machines, conveyor systems, and material handling equipment. Its compact dimensions make it ideal for control cabinets with limited space. The real-time clock enables scheduled operations, such as batch processing or periodic maintenance triggers.

Technical Specifications

The 1762-L24BXBR operates on a 24VDC power supply with an input power of 82 VA. The relay contacts are rated for 24-125VDC or 120-240VAC at 10A. Fast inputs accept signals up to 20 kHz on channels 0-3. Communication ports include an 8-pin mini-DIN serial port supporting DF1, DH-485, ASCII, and MODBUS protocols. The controller measures 90 mm x 160 mm x 87 mm (height with DIN latch open: 104 mm) and weighs 1.1 kg. Ambient operating temperature ranges from 0 to 55 degrees Celsius.

Installation & Maintenance Guide

Mount the controller on a DIN rail or panel using the provided slots. Ensure at least 500 mm clearance on all sides for ventilation. Use a 24VDC power supply with proper inrush current handling (25A at 120VAC for 8 ms). For routine maintenance, inspect relay contacts for wear and clean the enclosure periodically. Replace the unit if embedded I/O channels are damaged.

Frequently Asked Questions

Q1: What is the maximum number of expansion modules for the 1762-L24BXBR?

A1: Up to six 1762 expansion I/O modules can be connected.

Q2: Does the controller support Modbus communication?

A2: Yes, the primary serial port supports MODBUS protocol alongside DF1, DH-485, and ASCII.

Q3: What is the input frequency for fast inputs?

A3: Fast inputs on channels 0-3 accept up to 20 kHz. Other inputs are scan-time dependent and accept up to 1 kHz.

Packing List

• 1 x Allen-Bradley MicroLogix 1200 PLC unit
• 1 x Product documentation (quick start guide)