Product Overview

The 1769-L32C is a high-performance programmable automation controller (PAC) within the Allen-Bradley CompactLogix family. It is specifically engineered for applications requiring deterministic, high-speed scheduled data transfers via its integrated ControlNet port. This controller bridges the gap between small-scale micro-controllers and large-scale ControlLogix systems, offering a 750 KB user memory capacity and the ability to manage up to 16 I/O modules locally. (Note: While some documentation refers to the L32C within the broader Logix5332 category, it is widely utilized for its robust ControlNet BNC interface in mid-range industrial architectures).

Technical Specifications

• Controller Type: CompactLogix 5332C (ControlNet)

• User Memory: 750 KB (Non-volatile memory available via CompactFlash card)

• Local I/O Capacity: Supports up to 16 modules (Max 3 banks)

• Expansion Banks: Maximum 2 expansion cables (Bank 0, 1, and 2)

• Integrated Communication Ports:

• 1 x ControlNet (BNC Coaxial Connector)

• 1 x RS-232 Serial Port (DF1, DH-485, Modbus via ladder logic)

• ControlNet Throughput: 5 Mbps deterministic scheduling

• Max Number of ControlNet Nodes: 99 Nodes

• I/O Module Distance Rating: 4 modules from power supply

• Programming Software: RSLogix 5000 / Studio 5000 Logix Designer

• Backplane Current Draw: 650 mA @ 5.1V DC

• Operating Temperature: 0°C to +60°C (32°F to 140°F)

• Isolation: 30V (continuous), Basic Insulation Type; tested at 500V AC for 60s

• Real-Time Clock: Internal clock with battery backup (typically 1769-BA)