Overview
The Allen-Bradley 1769-L35E is a compact, high-performance CompactLogix controller designed for networked automation applications. This 1.5MB EtherNet/IP processor integrates Ethernet and serial communication in a single module that mounts directly on standard 35mm DIN rail. The 1769-L35E supports up to 30 Compact I/O modules across three expansion banks, making it ideal for medium-scale process and factory automation requiring reliable networked control.
Key Features
- 1.5MB user memory for program and data storage
- Integrated EtherNet/IP and RS-232 serial communication ports for flexible network integration
- Supports up to 30 local I/O modules with three-bank expansion capability
- Runs Studio 5000 Logix Designer software (v30 or later recommended)
- Standard DIN rail mounting with direct side-bus connection to Compact 5000 I/O modules
- Supports removable Compact Flash memory cards (64/128 MB) for program backup and firmware updates
Technical Specifications
- Memory: 1.5MB user program and data memory
- Communication Ports: EtherNet/IP, RS-232 (DF1, ASCII, DH-485)
- Supported I/O Modules: Up to 30 Compact 5000 modules across 3 banks
- Tasks: 8 concurrent tasks
- Power Supply: 5V DC at 660 mA, 24V DC at 90 mA
- Power Dissipation: 5.5 watts maximum
- Isolation Voltage: 30V continuous
- Operating Vibration: 10–500 Hz, 5G, 0.030 in. peak-to-peak
- Programming Languages: IEC 61131-3 compliant (Ladder, Function Block, Statement List, Structured Text, Sequence Function Chart)
- Mounting: 35mm DIN rail, direct side-bus connection
- Weight: 0.71 lbs
- Memory Card Option: 1784-CF128 or compatible Compact Flash
- Battery: 1769-BA replaceable lithium battery
Typical Applications
The 1769-L35E is widely deployed in:
- Machine control and process automation systems
- Manufacturing equipment requiring networked I/O expansion
- Process monitoring and data logging applications
- Assembly line control and material handling systems
- HVAC and environmental control in industrial facilities
- Packaging and labeling machinery with multiple I/O points
Compatibility & Replacements
Compatible With
- CompactLogix 5000 and 5370 series I/O modules (1769-series)
- DeviceNet modules (1769-SDN series)
- ControlNet and EtherNet/IP networks
- Studio 5000 Logix Designer (v30 and later)
- ControlFLASH and ControlFLASH Plus firmware tools
- Compact Flash memory cards (1784-CF64, 1784-CF128)
- Allen-Bradley 1769-BA battery module
Replaces / Drop-In Replacement For
The 1769-L35E is a direct successor to earlier CompactLogix EtherNet processor models. Verify compatibility with your system integrator or controls engineer before substituting alternative part numbers in existing systems.
Works With
- Programming Software: Studio 5000 Logix Designer (IEC 61131-3 compliant)
- Communication Protocols: EtherNet/IP, DF1, ASCII, DH-485, Modbus via logic
- Network Standards: EtherNet/IP, ControlNet, DeviceNet
- Firmware Updates: ControlFLASH, ControlFLASH Plus
- Non-Volatile Storage: Compact Flash cards (1784-CF series)
