Allen-Bradley 1769-L33ERM | Compact GuardLogix 5370 L3 Controller

Overview

The Allen-Bradley 1769-L33ERM belongs to the Compact GuardLogix 5370 L3 family, delivering reliable performance in small to mid-size control systems. With its compact hardware design and expansion capability, this controller is widely used in OEM machinery, process automation, and factory floor applications.

Memory and Processing

The 1769-L33ERM includes 2 MB of embedded user RAM and 1 GB of non-volatile memory supplied via the 1784-SD1 card. For higher capacity, users can upgrade to a 1784-SD2 with 2 GB storage. This memory configuration ensures efficient handling of control logic, motion profiles, and system data without performance delays.

Communication and Connectivity

Equipped with two embedded Ethernet/IP ports, the 1769-L33ERM supports 32 Ethernet/IP nodes and provides a communication rate of 10/100 Mbps. It also includes one USB 2.0 full-speed port, operating at 12 Mbps, which simplifies local programming and diagnostics. However, the USB port is not designed for industrial data exchange.

Motion Control

The 1769-L33ERM integrates motion over Ethernet/IP, supporting up to 8 motion axes. This capability allows users to implement coordinated motion control for robotics, packaging, or process automation, enhancing system flexibility and precision.

Technical Specifications

• Tasks Supported: 32 tasks with multiple programming languages, including Ladder Diagram, Structured Text, Function Block Diagram, and Sequential Function Chart.

• Local I/O Support: 16 modules across 3 I/O banks.

• Power Requirements: Operates with copper wiring rated at 90°C; wire sizes range from 22–14 AWG (solid) and 22–16 AWG (stranded).

• Environmental Ratings: Functions within 0°C to 60°C and withstands shock levels from 20 to 30 G.

• Certifications: Meets industry standards with reliable compliance.

Physical Design

The 1769-L33ERM weighs approximately 2 pounds and ships in a package measuring 8 × 8 × 5 inches. Its small form factor and lightweight design allow convenient installation in compact enclosures, making it ideal for space-constrained control panels.

Key Features

• 2 MB user RAM with 1 GB expandable SD storage.

• Dual Ethernet/IP ports supporting 32 nodes at 10/100 Mbps.

• USB 2.0 programming port at 12 Mbps.

• Integrated motion control for up to 8 axes.

• Supports 16 local I/O modules in 3 banks.

• Compact size at 8 × 8 × 5 inches, weighing 2 lbs.