Allen-Bradley 1766-L32BXB MicroLogix 1400 CPU Module

The Allen-Bradley 1766-L32BXB is a MicroLogix 1400 CPU module that combines reliability, communication versatility, and scalability within a compact form factor. Designed for machine-level control, this controller bridges the gap between small-scale automation and complex networked systems. It enhances productivity by supporting EtherNet/IP, Modbus TCP/IP, and serial communication, enabling efficient connectivity with SCADA systems and other Rockwell controllers.

Unlike traditional MicroLogix models, the 1766-L32BXB offers expandable I/O capability, integrated LCD display, and embedded web server support — allowing engineers to monitor, configure, and control systems remotely. This module is a proven solution for OEMs and plant engineers seeking intelligent, connected automation in cost-sensitive applications.

Technical Characteristics

Typical Applications

• OEM Equipment – Ideal for small packaging, labeling, or conveyor machines.

• Process Automation – Applied in water treatment, HVAC, and building automation.

• Industrial Networking – Connects to SCADA systems via EtherNet/IP or Modbus TCP.

• Remote Monitoring – Integrated web server enables remote system diagnostics.

• Machine Upgrade Projects – A drop-in replacement for legacy MicroLogix systems.

• Data Acquisition Systems – Built-in data logging supports trend analysis and reporting.

Core Advantages

• EtherNet/IP Connectivity – Ensures seamless integration with Rockwell networks.

• Built-in LCD Screen – Provides on-device control and troubleshooting.

• Flexible I/O Expansion – Connects to 1762 I/O modules for system scaling.

• High-Speed Outputs – Suitable for motion, counting, and timing applications.

• Integrated Data Logging – Enables diagnostics and process traceability.

• Embedded Web Server – Allows remote system access via browser.

• Multi-Protocol Communication – Compatible with EtherNet/IP, Modbus, and DH-485.

• Compact Footprint – Saves cabinet space without sacrificing performance.

• Easy Programming – Compatible with RSLogix 500 and Micro Starter software.

• Reliable Operation – Designed for rugged industrial environments.

FAQs

1. Q: How many built-in I/O points are available?

   A: The 1766-L32BXB has 32 built-in points (20 inputs and 12 transistor outputs).

2. Q: Can I expand the I/O capacity?

   A: Yes, it supports up to seven 1762 I/O expansion modules.

3. Q: Does this module have Ethernet capability?

   A: Yes, it includes an integrated EtherNet/IP port supporting Modbus TCP/IP.

4. Q: What type of outputs does it use?

   A: Transistor (sourcing) outputs for high-speed switching.

5. Q: What is the available program memory size?

   A: 20 KB user memory with non-volatile Flash storage.

6. Q: Can I view controller data without connecting to a PC?

   A: Yes, the built-in LCD allows real-time data display and configuration.

7. Q: What is the communication protocol for serial ports?

   A: Supports DF1, DH-485, and Modbus RTU.

8. Q: What power supply does it require?

   A: 24 VDC regulated power input.

9. Q: How is it programmed?

   A: Using RSLogix 500 or MicroLogix programming software.

10. Q: What is the controller’s physical weight?

    A: Approximately 0.95 kg (2.09 lb).