Product Overview
The Allen-Bradley 1769-L30ER is a CompactLogix packaged controller from the 5370 family, designed as a Programmable Automation Controller (PAC) for small to medium automation applications. This processor module integrates 1MB memory, dual Ethernet communication ports, and a USB port, enabling efficient control and data exchange in compact systems. By centralizing logic and networking, the controller reduces hardware costs and simplifies wiring, offering a cost-effective solution for machine builders and system integrators.
Technical Specifications Breakdown
Key parameters for the 1769-L30ER are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Rockwell Automation / Allen-Bradley |
| Brand | Allen-Bradley |
| Part Number | 1769-L30ER |
| Product Line | CompactLogix |
| Product Type | Programmable Automation Controller |
| Module Type | Processor Module |
| Communication | Ethernet |
| Communication Ports | Two (2) Ethernet I/P; 1 USB |
| No. of Ethernet Nodes | 16 |
| Memory | 1 MB |
| Max I/O Modules | 8 Modules |
| Max I/O Banks | 3 banks |
| Shipping Weight | 4 pounds |
| Power Supply Distance Rating | 4 |
| Shipping Dimensions | 11 x 8 x 6 inches |
| Series | A and B |
| Programming Cable | RJ45 connector per IEC 60603-7 |
| Replacement Terminal Block | 1769-RTBN18 |
| Battery | 1747-BA |
| Wire Type | Copper-90 degrees Celsius |
| Vibration (Operating) | 10 to 500 Hz, 5G, 0.030 in. peak-to-peak |
| Wire Size (Solid) | 22 to 14 AWG |
| Operating Temperature | 0° to +60°C (+32° to +140°F) |
| Wire Size (Stranded) | 22 to 16 AWG |
| Mounting | DIN Rail; Panel Mounting |
| Certification | cULH (Class I, Division 2) |
| UPC | 10885630101276 |
| Non-Volatile Memory | 1784-SD1 card (1 GB shipped); 1784-SD2 card (2 GB optional) |
Industry Applications
This controller is ideal for material handling, packaging, and assembly lines where compact size and dual Ethernet reduce network infrastructure costs. The 1MB memory supports medium-sized programs, while the 16 Ethernet nodes enable connection to HMIs, SCADA, and drives—lowering total cost of ownership by eliminating separate switches in small networks.
Installation & Setup Guidance
Mount the module on a DIN rail or panel, ensuring 50 mm (2 inches) clearance on all sides for airflow. Install within 4 modules of a compatible power supply (1769-PA2, PB2, PA4, or PB4). Use copper wire rated for 90°C, solid 22-14 AWG or stranded 22-16 AWG. Assign IP address via BOOTP-DHCP utility. The dual Ethernet ports support linear, ring, or star topologies.
Maintenance & Reliability
Inspect the battery (1747-BA) periodically and replace if the BAT LED indicates low charge. Keep the SD card (1784-SD1) inserted for non-volatile program storage. Operate within 0° to +60°C to avoid overheating. The cULH Class I Division 2 certification allows use in hazardous locations, reducing costly enclosure requirements.
Compatibility & Integration
The controller works with up to 8 Compact I/O modules and 3 expansion banks, using the 1769-RTBN18 terminal block. The dual Ethernet ports act as an embedded switch, supporting Device Level Ring (DLR) for fault-tolerant networks—minimizing downtime and repair costs.
Selection Guide & Purchasing Advice
Choose the 1769-L30ER for applications needing moderate memory and dual Ethernet without a separate switch. SpareTechPLC stocks this model with fast shipping. Verify lifecycle status before ordering.
Troubleshooting & Common Issues
If the OK LED is off, check power supply distance (must be within 4 modules). If communication fails, verify Ethernet cable (Cat5/Cat6 with RJ45) and IP address assignment. If BAT LED is on, replace battery (1747-BA).
