Allen-Bradley | 1766-L32BXBA| MicroLogix 1400

Product Description: Allen-Bradley 1766-L32BXBA

The Allen-Bradley 1766-L32BXBA is a MicroLogix 1400 controller that combines flexible communication, embedded analog and digital I/O, and high-performance processing into a compact and cost-effective package. It is well-suited for standalone applications or integration into larger systems, offering expanded memory, an integrated LCD display, and support for Ethernet/IP networking.

Key Features

• Total of 32 embedded I/O:
• 20 digital inputs (24V DC)
• 12 digital outputs (relay type)
• Includes 2 analog inputs (voltage or current selectable) and 2 analog outputs (voltage only)
• Integrated Ethernet/IP port for peer-to-peer messaging and SCADA connectivity
• Built-in RS232/RS485 combo port and RS232 port for serial communication
• Embedded LCD for diagnostics, status monitoring, and simple data entry
• High-speed I/O support for time-critical control tasks

Technical Specifications

• Digital Inputs: 20 (24V DC sink/source)
• Digital Outputs: 12 relay outputs
• Analog Inputs: 2 (0–10V or 4–20mA selectable)
• Analog Outputs: 2 (0–10V)
• Communication Ports:
• 1 × Ethernet/IP
• 1 × RS232
• 1 × RS232/RS485 (non-isolated)
• Memory: 10 KB user program, 128 KB data logging
• Display: 2-line, 16-character backlit LCD
• Power Supply: 120/240V AC
• Expansion: Supports up to 7 1762 I/O modules
• Mounting: DIN rail or panel mount
• Operating Temperature: 0°C to 55°C
• Dimensions: Approx. 110 x 190 x 87 mm (H x W x D)

Application Areas

• Standalone machine control
• Small process systems with analog signal requirements
• Building automation and utility monitoring
• Remote telemetry units (RTUs)
• Industrial refrigeration and HVAC systems

Advantages

• Integrated analog and digital I/O reduces system cost and complexity
• Built-in Ethernet enables remote monitoring and control
• LCD display offers quick diagnostics without connecting a PC
• Ideal for mixed-signal applications in compact enclosures
• Broad communication options support legacy and modern systems