Allen-Bradley 1769-L36ERMS GuardLogix Safety Controller 3MB/1.5MB

Product Overview

The 1769-L36ERMS is a high-performance safety processor from the Allen-Bradley Compact GuardLogix 5370 series. It is designed to provide a unified control solution by integrating both standard logic and functional safety into a single, compact unit. This controller eliminates the need for a separate safety partner, utilizing a 1oo2 G safety architecture to achieve SIL 3 and PLe (Category 4) ratings. By supporting CIP Safety over EtherNet/IP, the 1769-L36ERMS enables advanced Safety Motion functions, allowing machines to shift to safe speeds or controlled decelerations rather than immediate hard stops, which significantly improves machine uptime and personnel protection in high-speed manufacturing environments.

Technical Specifications

The 1769-L36ERMS provides a robust execution environment for complex, safety-critical industrial applications.

• Manufacturer: Rockwell Automation / Allen-Bradley

• Model Number: 1769-L36ERMS

• Standard User Memory: 3 MB

• Safety User Memory: 1.5 MB

• Safety Ratings: SIL 3 (IEC 61508), PLe (ISO 13849-1)

• Integrated Motion: Up to 16 axes over EtherNet/IP (CIP Motion)

• Local I/O Capacity: Supports up to 30 × 1769 Compact I/O modules

• Maximum Ethernet Nodes: 48 EtherNet/IP nodes

• Communication Ports:

• 2 x EtherNet/IP ports (DLR, Star, and Linear support)

• 1 x USB 1.1 port for local configuration

• Internal Storage: 1 GB Secure Digital (SD) card included (1784-SD1)

• Control Execution: 32 Standard Tasks, 1 Dedicated Safety Task

• Architecture: 1oo2 G (internal redundancy for safety logic)

• Current Draw: 560 mA @ 5V DC; 225 mA @ 24V DC

• Dimensions (H x W x D): 132 x 89 x 114 mm

• Weight: 0.61 kg (0.98 lbs)