Excellent PLC
Product Introduction
The Allen Bradley 1769-L33ERMS CompactLogix 5370 L3 Ethernet Controller is a high-performance safety-enabled programmable controller designed for advanced industrial automation systems requiring both standard and safety control in a unified platform. As part of the CompactLogix 5370 L3 series, it delivers powerful processing capability, integrated safety functionality, and scalable network communication.
This controller features dual EtherNet/IP ports with Device Level Ring (DLR) capability, ensuring reliable and redundant network communication. It combines 2 MB of standard memory with 1 MB of dedicated safety memory, allowing separation of safety-critical logic from standard control tasks, which is essential for achieving functional safety compliance.
With support for up to 16 I/O expansion modules and 32 EtherNet/IP nodes, the controller is well suited for distributed automation architectures and complex machine control applications. Its USB interface simplifies programming and maintenance, while the integrated safety features reduce the need for separate safety controllers.
Product Specifications
| Parameter | Description |
|---|---|
| Model | 1769-L33ERMS |
| Product Series | CompactLogix 5370 L3 |
| Controller Type | Safety Ethernet Controller |
| Power Supply | Requires external 1769 power supply |
| Standard Memory | 2 MB |
| Safety Memory | 1 MB |
| Ethernet Ports | 2 × EtherNet/IP (DLR capable) |
| USB Port | 1 × USB programming/downloading port |
| Max Ethernet Nodes | 32 EtherNet/IP nodes |
| I/O Expansion | Up to 16 × 1769 I/O modules |
| Embedded I/O | None |
| Communication Protocol | EtherNet/IP |
| Mounting Type | DIN rail |
| Operating Temperature | 0°C to 60°C |
| Dimensions | 132 × 89 × 105 mm |
| Weight | 0.54 kg |
Applications
● Safety-critical industrial systems requiring integrated safety and standard control
● Packaging and assembly machinery with safety interlocks and motion coordination
● Robotic workcells where safe operation and real-time control must coexist
● Distributed automation systems utilizing EtherNet/IP communication and safety protocols
● Material handling systems requiring emergency stop and safe control functions
Advantages
● Integrated safety functionality eliminates the need for a separate safety PLC
● Dual memory architecture ensures separation of standard and safety logic for higher system integrity
● Dual Ethernet ports with DLR provide network redundancy and reliable communication
● High memory capacity (2 MB + 1 MB safety) supports complex applications
● Scalable I/O expansion allows system growth and flexibility
● Supports up to 32 Ethernet nodes enabling large distributed control systems
● USB programming interface simplifies configuration and maintenance
● Compact modular design reduces panel space while maintaining high performance
