1766-L32AWA | Allen-Bradley | MicroLogix 1400 Programmable Controller

Product Description

The Allen-Bradley 1766-L32AWA is a MicroLogix 1400 controller designed for mid-range automation systems requiring AC inputs and relay outputs. With 32 total I/O points, integrated memory, and multiple communication options, it provides reliable control for distributed applications. Although discontinued by the manufacturer, it remains widely used in legacy systems due to its robust design and versatile communication support.

Key Features

• Manufacturer: Rockwell Automation

• Brand: Allen-Bradley

• Model Number: 1766-L32AWA

• Series: MicroLogix 1400

• Type: Programmable Controller

• I/O Capacity: 32 points (20 inputs, 12 outputs)

• Inputs: 20 × 120 VAC discrete inputs

• Outputs: 12 × relay outputs

• Memory: 20 KB battery-backed RAM

• Power Supply: 110–240 VAC

• Operating Frequency: 47–63 Hz

• Power Consumption: 100 VA

• Inrush Current:

• 25 A for 8 ms @ 120 VAC

• 40 A for 4 ms @ 240 VAC

• Display: Built-in LCD

• Real-Time Clock: Integrated RTC

• Communication Ports: Ethernet, RS-232, RS-485

• Supported Protocols: DF1, DH-485, Modbus RTU, ASCII, DNP3, EtherNet/IP messaging, Modbus TCP/IP

• Mounting Options: Panel mount or DIN rail

• Weight: 2.00 lbs (≈ 0.91 kg)

Application Scenarios

• Legacy Control Systems: Ideal for maintaining or upgrading existing MicroLogix 1400 installations

• Process Automation: Provides reliable AC input and relay output control for manufacturing and energy sectors

• Networked Environments: Multiple communication ports allow integration into Ethernet and serial-based networks

• Time-Critical Applications: Built-in RTC ensures accurate scheduling and event logging

FAQ

Q: How many I/O points does the 1766-L32AWA support?  A: It provides 32 points, including 20 AC inputs and 12 relay outputs.

Q: Does the controller include a real-time clock?  A: Yes, it has a built-in RTC for time-based operations.

Q: What communication protocols are supported?  A: DF1, DH-485, Modbus RTU, ASCII, DNP3, EtherNet/IP messaging, and Modbus TCP/IP.

Q: How does it compare to the 1766-L32BWA model?  A: The 1766-L32AWA supports AC inputs, while the 1766-L32BWA is designed for DC inputs, making each suitable for different system requirements.