Allen Bradley 1769-L33ERM CompactLogix 5370 L3 Controller 2MB Memory

Product Description

The 1769-L33ERM is a high-performance Programmable Automation Controller (PAC) within the Allen-Bradley CompactLogix 5370 L3 family. Engineered by Rockwell Automation for mid-range industrial applications, it provides a powerful solution for systems requiring integrated motion control, high-speed discrete logic, and advanced Ethernet/IP networking.

Equipped with 2 MB of user memory, the 1769-L33ERM supports up to 16 local 1769 Compact I/O modules and can manage up to 16 axes of integrated motion over Ethernet/IP. Its triple-port Ethernet architecture supports Device Level Ring (DLR), linear, and star topologies, ensuring high network availability and simplified wiring for complex packaging, material handling, and process automation lines.

Detailed Technical Specifications

The 1769-L33ERM provides deterministic control and seamless integration with the Studio 5000 Logix Designer environment.

• Manufacturer: Rockwell Automation / Allen-Bradley

• Model/Part Number: 1769-L33ERM

• Controller Series: CompactLogix 5370 L3

• User Memory: 2 MB

• Local I/O Capacity: Up to 16 local 1769 I/O modules

• Integrated Motion: Supports up to 16 axes over Ethernet/IP (CIP Motion)

• Ethernet Ports: 3 × Ethernet/IP ports (1 Gbps capable, supporting DLR and Linear topologies)

• Ethernet Nodes: Supports up to 40 Ethernet/IP nodes

• Non-Volatile Memory: SD Card slot (Ships with 1784-SD1 1GB card)

• Programming Languages: Ladder Diagram (LD), Structured Text (ST), Function Block (FBD), Sequential Function Chart (SFC)

• Power Supply: 24V DC input (Requires 1769-PA2, PB2, PA4, or PB4 power supply)

• Current Draw: 5V DC at 450 mA

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

• Dimensions: 118 x 90 x 87 mm

• Weight: 0.63 kg (1.39 lbs)

Core Engineering Advantages

• Integrated Motion on Ethernet/IP: The "M" in 1769-L33ERM signifies motion support, allowing for synchronized control of Kinetix drives over a standard Ethernet cable, eliminating the need for dedicated Sercos motion modules.

• Network Resilience: The dual-port embedded switch technology allows for Device Level Ring (DLR) configurations. If a single point in the network ring fails, the controller maintains communication with all remaining nodes.

• Sustainable Maintenance: The module utilizes a capacitor-based energy storage system to write data to non-volatile memory during power loss, removing the requirement for lithium batteries.

• High Scalability: In addition to 16 local modules, the 1769-L33ERM can control distributed I/O across the factory floor via its 40-node Ethernet/IP capacity.