Allen-Bradley 1769-L30ER CompactLogix CPU

The Allen-Bradley 1769-L30ER CompactLogix 5370 is a modular programmable automation controller manufactured by Rockwell Automation, designed for compact industrial machinery and automation applications.

Key Technical Specifications

• Manufacturer: Allen-Bradley / Rockwell Automation
• Catalog Number: 1769-L30ER
• Product Series: CompactLogix 5370 (L3 Series)
• User Memory: 1 MB available user memory (Rockwell Automation, Publication 1769-TD005O-EN-P, “Technical Specifications – 1769 CompactLogix 5370 Controllers”)
• Integrated Communication Ports: 2x RJ45 EtherNet/IP ports with integrated switch supporting Device Level Ring (DLR) and linear topologies (10/100 Mbps); 1x USB 2.0 port for programming
• EtherNet/IP Node Capacity: Supports up to 16 EtherNet/IP nodes (Rockwell Automation, Publication 1769-TD005O-EN-P, “Technical Specifications – 1769 CompactLogix 5370 Controllers”)
• Local I/O Expansion: Supports up to 8 local 1769 Compact I/O modules across a single bank
• Power Supply Requirements: Power supply distance rating: 4 modules. The controller must be installed within 4 module positions of a compatible 1769 power supply; verify specific distance ratings for all attached I/O modules per system design guidelines
• Non-volatile Memory: Standard factory configuration includes a 1 GB SD card (supports cards up to 2 GB); verify the actual card presence and condition for the specific unit prior to purchase
• Energy Storage: Internal capacitor-based energy storage eliminates lithium backup batteries
• Engineering Software: Verify the controller firmware revision and supported programming software version against the applicable Rockwell Automation compatibility documentation before deployment

System Configuration and Networking

The integrated dual-port EtherNet/IP switch supports Device Level Ring (DLR) and linear network topologies. Verify the required DLR supervisor configuration and network-device compatibility against the system design documentation. When planning the local I/O assembly, ensure the controller is installed within 4 module slots of a compatible 1769 power supply, and check individual module distance ratings, backplane power consumption, and bank layouts against official installation manuals before deployment.

Product Lifecycle and Sourcing Notice

Rockwell Automation has categorized the 1769-L30ER under official Active Mature lifecycle status. This mature controller may be relevant for maintenance, machine building, and industrial spare parts sourcing. Confirm the exact hardware series letter, firmware build, and accessory requirements prior to purchase. Availability, unit condition, pricing, lead time, warranty terms, and shipping options will be confirmed individually in the quotation.

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Submit an inquiry with catalog number 1769-L30ER, required quantity, destination country, and application requirements.

Technical parameters are provided for model identification and engineering reference. Always verify the physical unit nameplate and official manufacturer technical literature prior to installation.