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Product Insight
The Allen Bradley 1769-L38ERMS Compact GuardLogix CPU Module is a high-performance, dual-core safety controller designed for integrated standard and safety control in one compact system. As part of Rockwell Automation’s CompactLogix 5380 family, this module provides precise motion, discrete, and analog control while integrating SIL 3 and PLe-rated safety functionality — making it ideal for machine safety, motion applications, and complex control systems that demand both speed and reliability.
Its advanced architecture supports EtherNet/IP communication, dual Ethernet ports with device-level ring (DLR) topology, and high-speed processing that enhances overall system performance. The 1769-L38ERMS enables engineers to consolidate multiple controllers into one platform, reducing wiring, footprint, and maintenance complexity while maintaining rigorous safety standards.
Technical Specifications
| Parameter | Specification | Description |
|---|---|---|
| Product Type | Compact GuardLogix CPU Module | Integrated standard and safety control |
| Model Number | 1769-L38ERMS | Dual-core safety processor |
| Controller Type | CompactLogix 5380 | Safety variant with EtherNet/IP |
| Memory Capacity | 3 MB | Program and data memory |
| Safety Memory | 1.5 MB | Dedicated safety logic memory |
| I/O Capacity | Up to 31 local 1769 I/O modules | High-density system scalability |
| Ethernet Ports | 2 × RJ45 10/100/1000 Mbps | Embedded dual-port switch (DLR support) |
| Communication Protocols | EtherNet/IP, CIP Safety, CIP Motion | Integrated industrial network connectivity |
| Motion Control Support | Up to 16 axes | Integrated Kinetix servo motion |
| Safety Rating | SIL 3, PLe, Cat. 4 | Meets IEC 61508 and ISO 13849-1 standards |
| Expansion Modules Supported | 1769 Compact I/O | Standard and safety I/O compatibility |
| Clock and Battery | Integrated non-volatile memory; battery not required | Simplified data retention |
| Power Supply | 24 VDC | External power input |
| Power Consumption | 5.0 W typical | Low power design |
| Operating Temperature | 0°C to +60°C | Industrial environmental tolerance |
| Storage Temperature | -40°C to +85°C | Suitable for spare part storage |
| Relative Humidity | 5–95% non-condensing | Industrial-grade protection |
| Vibration / Shock Resistance | 5 g / 30 g | IEC 60068-2 compliant |
| Mounting Type | DIN-rail or panel mount | Compact and modular form |
| Dimensions (H × W × D) | 90 mm × 70 mm × 105 mm (3.54″ × 2.76″ × 4.13″) | CompactLogix standard housing |
| Weight | 0.55 kg (1.21 lb) | Lightweight, durable enclosure |
| Certifications | CE, UL, C-Tick, ATEX | Global safety and performance compliance |
Typical Industrial Applications
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Automotive Manufacturing Lines: Synchronization of robotic cells and conveyor systems with integrated safety interlocks.
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Packaging and Material Handling Systems: Safety-enabled motion and product tracking control.
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Food and Beverage Production: Reliable line control with clean-in-place (CIP) compatibility.
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Pharmaceutical Automation: Safe sequencing of filling, sealing, and inspection processes.
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Oil & Gas Processing Units: Redundant safety control for pumps, valves, and compressors.
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Machine Safety Systems: Emergency stop, zone control, and safe torque-off implementation.
Key Functional Advantages
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Integrated Standard + Safety Control: One processor handles both standard and SIL-rated logic for seamless safety integration.
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Faster Processing Speed: 5380 architecture delivers sub-millisecond scan times.
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EtherNet/IP with DLR: Built-in redundancy ensures continuous communication without downtime.
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High-Performance Motion: Supports up to 16 axes of coordinated servo motion.
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Compact Design: Fits into small control panels without compromising scalability.
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Secure Configuration: Password and signature verification protect safety projects.
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Low Power Consumption: Optimized design for energy efficiency and heat reduction.
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Easy Migration: Compatible with Studio 5000 Logix Designer software.
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Enhanced Diagnostics: Real-time fault detection and status monitoring.
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Global Compliance: Certified for use in hazardous and regulated environments.
