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Allen-Bradley 1769-L33ER/A CompactLogix 2MB Ethernet Controller

Allen-Bradley 1769-L33ER/A CompactLogix 2MB Ethernet Controller

Product Description

The 1769-L33ER/A is a CompactLogix 5370 PAC from Allen-Bradley, designed for complex machine control and high-speed data processing. With 2 MB of user memory and dual Ethernet ports, it supports Device Level Ring (DLR) topology for network...

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Availability: Low stock: 99 left

SKU: 1769-L33ER/A
Vendor: Allen Bradley
Category: Ethernet Controller
Related Series:

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Product Description

The 1769-L33ER/A is a CompactLogix 5370 PAC from Allen-Bradley, designed for complex machine control and high-speed data processing. With 2 MB of user memory and dual Ethernet ports, it supports Device Level Ring (DLR) topology for network resiliency and minimal downtime. The controller acts as a central hub for modular I/O expansion, supporting up to 16 local modules and distributed I/O via EtherNet/IP for flexible system configuration.

Technical Specifications

Specification Details
Model Designation 1769-L33ER/A
Controller Series CompactLogix 5370
User Memory 2 MB
Memory Expansion 1 GB SD card included (supports up to 2 GB)
I/O Expansion Up to 16 local 1769 Compact I/O modules
Network Connectivity Dual-port Ethernet (10/100 Mbps)
Network Topology DLR, Star, Linear
Ethernet Node Capacity Up to 32 nodes
Communication Ports Ethernet and USB for programming/firmware
Physical Dimensions 19 cm × 17 cm × 9.5 cm
Weight 0.5 kg

Operational Flexibility

The 1769-L33ER/A offers open socket capability for integration with third-party devices, including barcode scanners, industrial printers, and local servers. The USB interface enables easy commissioning, firmware updates, and troubleshooting. By leveraging EtherNet/IP for both control and distributed I/O, it reduces wiring complexity and streamlines large-scale machine designs.

Frequently Asked Questions

What does the "DLR" capability provide?
Device Level Ring (DLR) ensures media redundancy. If a cable fails, communication to all nodes is maintained, preventing system-wide control loss.

Can I expand the onboard memory?
Yes. It ships with a 1 GB SD card and supports up to 2 GB for non-volatile storage and program transfer.

How many I/O modules can be added to this controller?
Up to 16 local 1769 Compact I/O modules, providing extensive scalability for automation systems.