Product Details
Product Overview
The Allen Bradley 1769-L38ERM serves as a premier processing unit within the CompactLogix 5370 L3 controller family. This high-capacity controller manages complex automation tasks by combining a 5MB user memory with advanced integrated motion capabilities over EtherNet/IP. It anchors mid-range applications that require high-performance synchronization, handling up to 16 axes of motion and 80 Ethernet nodes. We supply this unit as 100% Brand New original factory stock, ensuring your mission-critical machinery operates with the latest silicon-level precision and original manufacturer integrity.
Technical Specifications
| Feature | Specification Details |
| Manufacturer | Allen Bradley / Rockwell Automation |
| Product Series | CompactLogix 5370 L3 |
| User Memory | 5 MB |
| Ethernet Nodes | Supports up to 80 Nodes |
| Motion Capacity | 16-Axis CIP Motion (Integrated) |
| Local I/O Capacity | Supports up to 30 Modules |
| Network Architecture | Dual Ethernet Ports with DLR (Device Level Ring) |
| Advanced Functions | Kinematics and CIP Motion |
| Storage | Includes 1GB SD Card (Supports up to 2GB) |
| Weight | 0.71 lbs (0.32 kg) |
Engineering Advantages
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Integrated Motion on EtherNet/IP: The 1769-L38ERM executes CIP Motion and specialized kinematics functions directly through the Ethernet ports. This eliminates the need for dedicated motion modules and expensive high-speed specialized cabling, allowing you to synchronize 16 axes of motion using standard shielded Cat5e cables.
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High-Availability Networking: The built-in dual Ethernet ports support Device Level Ring (DLR) topologies. This feature ensures that the system maintains communication even if a single point in the network ring fails, providing the fault tolerance necessary for continuous manufacturing processes.
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Battery-Free Operation: This 5370 series controller utilizes an internal energy storage module to back up volatile memory during power-down events. This removes the maintenance burden of replacing lithium batteries and prevents program loss due to battery depletion.
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Massive I/O Scalability: Despite its compact form factor, this processor manages up to 30 local 1769 I/O modules. This high density allows engineers to condense control panels significantly while maintaining the processing overhead required for data-intensive I/O configurations.
FAQs
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Can the 1769-L38ERM support third-party kinematic geometries?
Yes. This controller includes native kinematics instructions. It supports Delta robots, SCARA arms, and Linkage applications, allowing you to integrate robotics directly into your standard PLC code environment via Studio 5000.
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What is the benefit of the dual Ethernet ports over a single port model?
The dual ports function as an integrated switch. You can daisy-chain controllers and I/O together or configure a DLR (Device Level Ring) to provide network redundancy, which significantly reduces the cost of external switching hardware.
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Does this unit ship with a memory card?
Yes. Each Brand New 1756-L38ERM ships with a standard 1GB industrial SD card. The card serves as non-volatile storage for the user program and firmware, ensuring the system recovers instantly after a power cycle.
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Is this a refurbished or surplus unit?
Absolutely not. We provide only 100% Brand New units in original factory packaging. Each controller carries a clean serial number and the original manufacturer's seal, guaranteeing it has never been installed or energized.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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As control systems evolve across modern factory automation, understanding the root causes of these interruptions helps engineers minimize costly downtime. This technical guide breaks down why PLCs trip into Stop mode and provides practical strategies to mitigate system faults.
Understanding Root Causes of Unplanned PLC Stop Mode in Industrial Automation
Modern Programmable Logic Controllers manage execution through distinct operational states: Run, Stop, Start-Up, and Hold. During power-up, a controller initializes memory registers within Stop mode before briefly transitioning to Start-Up mode. During this phase, internal self-diagnostics evaluate system integrity across hardware and user programs. If the controller detects no critical faults, it enters Run mode to execute the control program continuously. However, any severe system anomaly forces the CPU back into Stop mode immediately to prevent erratic machine behavior across the plant floor.