Configured for deterministic control logic execution in industrial automation networks, the Allen-Bradley 1769-L35E (1769L35E Ethernet Processor) provides direct physical and electrical execution of instruction sets across integrated backplane communication platforms.

Model Matrix

• 1769-L35E: Standard catalog number for the CompactLogix controller with integrated EtherNet/IP port.

• Suffix E: Denotes high-speed Ethernet communications capability for distributed I/O control.

Hardware Specifications

Deterministic Network Connectivity

The 1769-L35E utilizes integrated EtherNet/IP connectivity to facilitate high-speed data exchange across industrial networks. It supports I/O density scaling through the attachment of up to three independent I/O banks, maintaining deterministic communication cycle times between the processor and distributed modules. Firmware flash compatibility is managed through standard Allen-Bradley development environments, allowing for version-specific enhancements in task scheduling and memory allocation. The processor architecture optimizes backplane bus communication velocity, ensuring that cyclic data updates remain synchronized with control task execution frequencies.

Ordering Information

• 1769-L35E CompactLogix Controller.

• Standard industrial packaging with integrated mounting tabs.

• Note: Communication cabling (Cat5/Cat6) and external I/O power supply modules are not included.

Field Installation Guidelines

• Mounting: Secure the processor module to a standard 35 mm DIN rail or directly to the panel using the provided mounting holes. Maintain specified torque of 1.1 to 1.8 N-m.

• Wiring: Terminate solid conductors (22-14 AWG) to the removable terminal blocks. Ensure proper strain relief for all field wiring to prevent mechanical stress.

• Environment: Install in an enclosure providing appropriate IP rating. Maintain airflow to ensure operating temperatures remain within the manufacturer's specified range.

• Shielding: Use shielded Ethernet cables (Cat5/Cat6) to mitigate potential electromagnetic interference in high-frequency industrial environments.

Frequently Asked Questions

• Does the 1769-L35E support hot-swapping? No, the module must be powered down before removal from the backplane to prevent electrical damage to the communication pins.

• How is the memory capacity managed? The 1.5 MB user memory is non-volatile; project files and data tags are stored in internal memory, requiring no battery for basic retention.

• Can I expand beyond 3 I/O banks? No, the system architecture is hardware-limited to a maximum of 3 I/O banks using 1769 expansion cables.

• What is the required Ethernet cable standard? Use shielded Cat5 or Cat6 cabling to ensure robust communication performance at 10/100 Mbps.

• How is the module updated? Firmware updates are performed via the Ethernet port using the ControlFLASH utility; verify compatibility with existing project versions first.

• Does it support redundant processor configurations? No, this model is designed for single-processor, stand-alone operation and does not natively support controller-level redundancy.

• What is the input voltage tolerance? Ensure input power remains stable at 5 VDC and 24 VDC; fluctuations exceeding +/- 5% may cause the module to enter a fault state.

• Is the real-time clock battery-backed? The processor requires an internal battery for clock retention; replace the battery periodically per the maintenance schedule.