Allen-Bradley 1769-L30 Series CompactLogix L3 Controller

Product Overview

The Allen-Bradley 1769-L30 CompactLogix 5370 series represents a versatile range of L3 controllers designed for small to medium-scale automation projects. This series provides a unified control engine with a compact footprint, offering high-performance processing for discrete, motion, and process applications. Whether you require the standard 1769-L30ER, the motion-capable 1769-L30ERM, or the conformal-coated 1769-L30ERMK for harsh environments, these controllers provide seamless integration into the Rockwell Automation Integrated Architecture.

Technical Configuration

• Manufacturer: Allen-Bradley / Rockwell Automation
• Controller Series: CompactLogix 5370 L3
• User Memory: 1 MB with 1 GB Non-Volatile SD Storage
• I/O Support: Up to 8 Local 1769 Compact I/O™ Modules
• Ethernet Capability: Dual Ports for Linear and Device Level Ring (DLR) Topologies
• Axis Support: Up to 4 Axes of Integrated Motion (ERM/ERMK models)
• Programming: Fully compatible with Studio 5000 Logix Designer®

Technical Specifications

Installation & Features

1. Network Flexibility: The 1769-L30 series features dual Ethernet ports that act as an integrated switch. This supports Device Level Ring (DLR) topologies, which provide increased network resiliency by allowing the system to continue communicating even if a single point in the ring is faulted.

2. Space-Efficient Design: Each controller in this series is engineered with a compact width of 50mm, making it ideal for control panels where rail space is limited. Despite its small size, the controller manages up to 8 local I/O modules and can expand across 3 I/O banks to meet complex system requirements.

3. Battery-Free Operation: These controllers utilize internal energy storage to save data to the included 1GB SD card during power loss. This eliminates the need for lithium batteries and reduces long-term maintenance costs for the end user.

Engineering Advantages

The 1769-L30 series bridges the gap between micro and large-scale control systems. By utilizing the same programming environment as ControlLogix (Studio 5000), engineers can reuse code and reduce development time. The 1769-L30ER-NSE variant is specifically designed for mining or non-volatile applications where energy storage must be minimized, while the "K" versions offer conformal coating to protect internal circuitry against moisture, dust, and corrosive chemicals.

Technical FAQs

Q1: What is the difference between the ER and ERM models?
A1: The "ER" is the standard controller, while the "ERM" supports Integrated Motion on EtherNet/IP for up to 4 axes of synchronized movement.

Q2: Does the controller come with memory included?
A2: Yes, each unit ships with 1MB of built-in user memory and a 1GB SD card for non-volatile storage and firmware management.

Q3: Can I use 1769 Compact I/O with these controllers?
A3: Absolutely. These controllers are designed specifically to work with the 1769 series of local and expansion I/O modules.