Allen-Bradley 1769-L33ER Series A CompactLogix Ethernet Processor

Product Overview

The 1769-L33ER (Series A) is a high-performance programmable automation controller (PAC) within the Allen-Bradley CompactLogix 5370 L3 family. Engineered for mid-range to complex automation tasks, it features 2 MB of user memory and integrated motion control over EtherNet/IP for up to 8 axes. The 1769-L33ER utilizes a battery-less design with an internal energy storage module, ensuring data retention during power loss without the maintenance overhead of traditional lithium batteries. Dual EtherNet/IP ports enable flexible network topologies, including Device Level Ring (DLR), making this processor a cornerstone for resilient, modern industrial architectures.

Technical Specifications

The 1769-L33ER (Series A) is designed for high-availability processing and deterministic motion execution.

• Manufacturer: Rockwell Automation / Allen-Bradley

• Model Number: 1769-L33ER

• Hardware Revision: Series A

• User Memory: 2 MB Volatile User Memory

• Non-Volatile Memory: 1 GB SD Card included (supports up to 2 GB)

• Maximum Local I/O: 16 Modules (across max 3 I/O banks)

• EtherNet/IP Nodes: Supports up to 32 Ethernet nodes

• Integrated Motion: 8 Axes of CIP Motion (Servo/Inverter)

• Communication Interface: 2 x Ethernet (RJ45), 1 x USB 1.1 (Configuration)

• Network Topologies: Device Level Ring (DLR), Linear, Star

• Controller Tasks: 32 Multi-priority tasks (100 programs/task)

• Current Draw: 560 mA @ 5V DC; 225 mA @ 24V DC

• Programming Software: Studio 5000 Logix Designer

• Power Supply Compatibility: 1769-PA2, 1769-PB2, 1769-PA4, 1769-PB4

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

• Weight: 0.31 kg (0.68 lbs)