Allen-Bradley | 1769-L33ERMS | CompactLogix 5370

Product Description: Allen-Bradley 1769-L33ERMS

The Allen-Bradley 1769-L33ERMS is a CompactLogix 5370 L3 safety controller featuring integrated dual redundancy and built-in EtherNet/IP capability. Specifically designed for high-integrity safety applications, this controller supports SIL 3/PLe safety levels and enables coordinated control with standard and safety-rated devices. With redundancy capabilities, it helps improve uptime for mission-critical control systems.

Key Features

• Integrated safety and standard control in one controller
• Supports SIL 3 and PLe functional safety compliance
• Integrated dual EtherNet/IP ports with Device Level Ring (DLR) support
• Built-in motion support for up to 16 axes via EtherNet/IP
• Redundant controller architecture using Studio 5000
• Supports up to 32 Compact I/O modules (1769) directly
• Non-volatile memory with SD card support for backup

Technical Specifications

• Memory : 2 MB standard, 0.5 MB safety memory
• I/O Capacity : Up to 32 local I/O modules
• Communication Ports : 2 x EtherNet/IP (embedded switch, DLR capable)
• Motion Support : Up to 16 axes via integrated EtherNet/IP
• Redundancy : Yes, controller-level redundancy using paired modules
• Safety Rating : SIL 3 (IEC 61508), PLe (ISO 13849-1)
• Mounting : DIN rail
• Operating Temperature : 0°C to 60°C (32°F to 140°F)
• SD Card : 1 GB default (expandable up to 2 GB)

Application Areas

• High-availability safety systems
• Machine safety control and monitoring
• Redundant process control in oil & gas, pharma, chemical industries
• Safety-rated material handling systems
• Coordinated motion and safety control for OEMs

Advantages

• Combines standard and safety control, reducing hardware footprint
• Enhances reliability with built- in controller redundancy
• Simplifies safety-certified application development with Studio 5000
• Supports scalable, integrated motion and safety in one platform
• Ideal for systems requiring continuous operation with high safety integrity