Overview
The Allen-Bradley 1769-L35E is a CompactLogix 5335E EtherNet processor designed for cost-effective, modular automation. This compact controller offers 1.5 MB of user memory and supports mixed discrete, analog, and specialty I/O modules without requiring a separate chassis. The 1769-L35E integrates dual communication ports (EtherNet/IP and RS-232) to enable seamless device networking and remote configuration in distributed automation architectures.
Key Features
- 1.5 MB user memory capacity for general-purpose industrial control applications
- Built-in EtherNet/IP port plus RS-232 serial (DF1, ASCII, DH-485, Modbus)
- Supports up to 30 I/O modules across three I/O banks for scalable configuration
- Optional CompactFlash memory expansion (64 MB or 128 MB) for program and firmware storage
- 8 controller tasks for multi-tasking industrial logic execution
- No external chassis required; compact DIN-rail mount form factor
Technical Specifications
The 1769-L35E meets industrial-grade power and isolation standards:
- Power Supply: 5 VDC @ 660 mA, 24 VDC @ 90 mA
- Total Power Dissipation: 5.5 watts
- Isolation Voltage: 30 volts (continuous)
- Memory: 1.5 MB user memory; optional CompactFlash 64/128 MB
- Communication Ports: 1x EtherNet/IP, 1x RS-232 serial
- Maximum I/O Modules: 30 discrete/analog/specialty modules
- Communication Protocols: EtherNet/IP, ControlNet, DeviceNet (modular)
- Series Revision: Series A and Series B available
Typical Applications
- Small to medium discrete manufacturing and assembly lines
- HVAC and facility automation systems
- Packaging and material handling equipment
- Water/wastewater treatment distributed I/O control
- Machine tool and metal fabrication operations
- Remote monitoring and device integration over EtherNet/IP networks
Compatibility & Replacements
Compatible With
- CompactLogix 1769 discrete (IOKL-L43D, IOKL-L46D), analog (IOLK-L44AS), and specialty modules
- EtherNet/IP industrial networks and gateways
- DeviceNet via 1769-SDN communication interface modules
- ControlNet networks (select configurations)
- Rockwell Studio 5000 Logix Designer / RSLogix 5000 programming software
- Allen-Bradley 1769-BA replacement battery module
- 1784-CF64 and 1784-CF128 CompactFlash memory cards
Replaces / Drop-In Replacement For
- 1769-L32E (earlier 32 KB memory generation); verify program size and I/O count before substitution
- Legacy CompactLogix 5300 controllers in non-networked environments
- Contact your system integrator to confirm direct replacement compatibility with your specific hardware revision
Works With
- Rockwell Studio 5000 Logix Designer (version 20 and later recommended)
- RSLogix 5000 programming environment
- EtherNet/IP protocol and Connected Components Workbench
- DeviceNet communication via optional 1769-SDN modules
- ControlNet communication interfaces (select models)
- ODBC and OPC clients for data integration and historian connectivity
