Allen-Bradley 1766-L32BXB MicroLogix 1400 PLC | 20 I/O, 32K Memory, Ethernet, 24V DC Specs

Allen-Bradley 1766-L32BXB MicroLogix 1400 PLC | 20 I/O, 32K Memory, Ethernet, 24V DC Specs

Allen-Bradley 1766-L32BXB MicroLogix 1400 controller specifications. 20 embedded I/O, 32K memory, Ethernet, serial ports, 24V DC, IP20. For industrial automation and control.

Product Overview

The Allen-Bradley 1766-L32BXB​ is a MicroLogix 1400 programmable logic controller (PLC)​ designed for industrial automation and control applications. This model features 20 embedded I/O points (12 inputs/8 outputs), 32K words of user memory, Ethernet and serial communication ports, and operates on 24V DC power. The "1766" designation indicates the MicroLogix 1400 series, "L32" specifies the memory size, and "BXB" indicates the specific I/O configuration and features. This compact controller provides robust control capabilities for small to medium automation applications with built-in communication options for easy integration.

Technical Specifications

Note: Specifications are based on Allen-Bradley 1766 series technical documentation. The "1766-L32BXB" model specifically indicates 32K memory with embedded analog I/O configuration. Actual specifications may vary slightly depending on production batch.

Model Number Decoding (1766-L32BXB)

• 1766:​ Series designation (MicroLogix 1400 series)

• L32:​ Memory size (32 = 32K words)

• BXB:​ I/O configuration and features (B = 12 DC inputs/8 relay outputs, X = analog I/O, B = Ethernet)

Note:​ The "L32" indicates 32K memory capacity. The "BXB" suffix breaks down as: First B = 12 DC inputs/8 relay outputs, X = embedded analog I/O, Second B = Ethernet port. This is one of the most feature-rich configurations in the MicroLogix 1400 series.

Embedded I/O Details

Key Features

• Embedded I/O:​ 20 points including analog I/O for reduced component count

• 32K Memory:​ 32,768 words for program and data storage

• Ethernet Communication:​ Built-in 10/100 Mbps Ethernet port

• Dual Serial Ports:​ RS-232 and RS-485 ports for legacy device connectivity

• LCD Display:​ 4-line display for status monitoring and basic configuration

• High-Speed Functions:​ 2 high-speed counters and 2 pulse outputs

• Real-Time Clock:​ Battery-backed clock for time-stamped events

• Expansion Capability:​ Supports up to 7 expansion I/O modules

• Industrial Protocols:​ Supports EtherNet/IP, Modbus RTU, DF1, DH-485

• Compact Design:​ All-in-one controller with built-in I/O and communication

• Battery Backup:​ Maintains memory and real-time clock during power loss

Communication Capabilities

Typical Applications

• Machine Control:​ Standalone machine automation and sequencing

• Process Control:​ Small to medium process automation

• Material Handling:​ Conveyor control and sorting systems

• Packaging Machinery:​ Filling, sealing, and labeling equipment

• HVAC Control:​ Building automation and environmental control

• Water Treatment:​ Pump control and process monitoring

• Energy Management:​ Power monitoring and control

• Test Equipment:​ Automated test system control

• Building Automation:​ Lighting, access, and security control

• Food Processing:​ Small-scale process control

Important Technical Notes

1. Power Requirements:​ Requires 24V DC power supply. Ensure adequate current capacity for controller and expansion modules.

2. I/O Configuration:​ Embedded I/O cannot be changed or expanded. Additional I/O requires expansion modules.

3. Expansion Modules:​ Supports up to 7 expansion modules (1762 series). Maximum 144 I/O points including embedded I/O.

4. Memory Capacity:​ 32K memory suitable for medium complexity applications. Consider program size and data requirements.

5. Battery Maintenance:​ Replace lithium battery every 3 years or when low battery warning appears on display.

6. Programming Software:​ Requires Connected Components Workbench (CCW) or RSLogix 500 software for programming.

7. Ethernet Configuration:​ Ethernet port requires IP address configuration (static or DHCP). Supports up to 32 connections.

8. Environmental Conditions:​ Install in appropriate enclosure for protection. IP20 provides limited protection against dust and moisture.

9. High-Speed Functions:​ High-speed counters and pulse outputs have specific wiring and configuration requirements.

Note: For complete installation guidelines, wiring diagrams, programming instructions, and detailed technical data, consult the official Allen-Bradley MicroLogix 1400 User Manual. Always verify the exact model number configuration with the manufacturer, as notation variations may occur.