Allen-Bradley 1769-L35E CompactLogix CPU

The Allen-Bradley 1769-L35E CompactLogix is a high-capacity modular programmable automation controller manufactured by Rockwell Automation, featuring 1.5 MB user memory and built-in Ethernet for compact industrial automation.

Key Technical Specifications

• Manufacturer: Allen-Bradley / Rockwell Automation
• Catalog Number: 1769-L35E
• Product Series: CompactLogix (Classic L3x Series)
• User Memory: 1.5 MB available user memory (Rockwell Automation, Publication 1769-TD005O-EN-P, “Technical Specifications – 1769 Modular CompactLogix Controllers”)
• Integrated Communication Ports: 1x RJ45 10/100 Mbps EtherNet/IP port; 1x RS-232 serial port (9-pin D-sub)
• Local I/O Expansion: Supports up to 30 local 1769 Compact I/O modules across up to 3 I/O banks total (requires 1769 expansion cables)
• 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: CompactFlash card support. Verify card compatibility and whether memory media is included with the specific unit
• Memory Backup: Battery-backed retention (uses 1769-BA lithium battery; verify battery condition before deployment)
• 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

Providing expanded memory compared to the 1769-L32E, this controller supports up to 30 local I/O modules across up to 3 I/O banks total for machine control applications requiring Ethernet connectivity and serial device communication. The overall local I/O layout depends on power supply sizing, expansion cable placement across banks, and individual module power supply distance limits. A compatible 1769 power supply must be positioned within 4 module positions of the controller. Confirm firmware series, module layout, and battery condition prior to commissioning.

Product Lifecycle and Sourcing Notice

Rockwell Automation has categorized the 1769-L35E under official Discontinued lifecycle status. This discontinued controller may be relevant for maintenance, system continuity, 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-L35E, 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.