Allen-Bradley 1769-L35E CompactLogix EtherNet/IP Controller

Product Description

The 1769-L35E (1769-L35E) is a high-performance modular controller within the Allen-Bradley CompactLogix family, engineered for small to medium-scale industrial automation. It serves as a powerful CPU for complex logic, motion control, and data-heavy applications, featuring an integrated EtherNet/IP port for high-speed communication and a secondary RS-232 port for legacy DF1/DH-485 device integration.

With a significant 1.5 MB user memory capacity, the 1769-L35E (1769-L35E) supports more extensive instruction sets and larger tag databases than its predecessor, the L32E. Its chassis-less design allows for a compact footprint while maintaining the ability to control up to 30 local 1769 I/O modules. This controller is a reliable choice for engineers looking to balance sophisticated control capabilities with space-saving hardware.

Detailed Technical Specifications

The following technical parameters outline the hardware and operational limits of the 1769-L35E:

• Manufacturer: Allen-Bradley / Rockwell Automation

• Model Number: 1769-L35E

• Product Type: EtherNet/IP Processor Module

• User Memory: 1.5 MB (Non-volatile battery-backed)

• Communication Ports: 1 EtherNet/IP (10/100 Mbps), 1 RS-232 (9-pin D-shell)

• Supported Protocols: EtherNet/IP, DF1 Full/Half Duplex, DH-485 (via RS-232), Modbus (via logic)

• Local I/O Capacity: Up to 30 modules (across max 3 I/O banks)

• Power Supply Distance Rating: Module must stay within 4 slots of a 1769 power supply

• Backplane Current Draw: 660 mA @ 5.1V DC, 40 mA @ 24V DC

• Power Dissipation: 5.5 Watts

• Battery Requirements: 1747-BA Lithium Battery

• Expansion I/O Points: 16 Expansion I/O points (max)

• Dimensions (HxWxD): 132 × 70 × 115 mm

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

• Environmental Rating: IP20 Open-type enclosure

Key Functional Features

• Extended Logic Capacity: 1.5 MB of user memory enables more complex PID loops and extensive data logging compared to standard-tier controllers.

• Integrated Ethernet/IP: Supports seamless integration with HMI, Scada, and distributed I/O without requiring additional communication cards.

• Modular Scalability: Supports up to 30 modules locally, providing the flexibility to expand the system as process requirements grow.

• Legacy Portability: The RS-232 port allows for easy connection to existing serial-based devices and legacy networks.