1769-L30ER | Allen-Bradley CompactLogix PAC Supplier

What Is the 1769-L30ER?

When your automation system demands a compact yet powerful controller, the 1769-L30ER from Allen-Bradley provides a robust solution. This Programmable Automation Controller (PAC) is part of the 5370 CompactLogix family, designed for small to medium applications with higher complexity. It features 1 MB of memory, two Ethernet communication ports, and one USB port, making it a versatile choice for modern industrial networks.

Key Features & Technical Specs

• Memory: 1 MB user memory for program and data storage.
• Communication ports: Two (2) Ethernet I/P and one (1) USB port.
• Ethernet nodes: Supports up to 16 nodes for device connectivity.
• I/O expansion: Supports up to eight (8) Compact I/O modules and three (3) expansion banks.
• Power supply distance rating: 4 modules from the power supply.
• Operating temperature: 0° to +60°C (+32° to +140°F).
• Vibration resistance: Operating 10 to 500 Hz, 5G, 0.030 in. peak-to-peak.
• Mounting options: DIN rail or panel mounting.
• Certification: cULH (Class I, Division 2) for hazardous locations.
• Non-volatile memory: 1784-SD1 card with 1 GB (shipped) or optional 1784-SD2 with 2 GB.

One distinctive spec is the dual Ethernet ports functioning as an embedded switch, enabling linear, ring, and star topologies. This reduces the need for external switches and simplifies network design.

Applications & Use Cases

In manufacturing environments, the 1769-L30ER excels at coordinating HMIs, SCADA systems, and other controllers. For example, in a packaging line, it can manage multiple I/O modules and communicate with up to 16 nodes, ensuring synchronized operation. Its compact size and DIN rail mounting make it ideal for control panels with limited space.

Installation & Setup

Mount the 1769-L30ER on a DIN rail or panel, ensuring 50 mm (2 inches) clearance on all sides for airflow. Use a programming cable with RJ45 connector per IEC 60603-7. Assign the IP address via BOOTP-DHCP utility. Install up to eight Compact I/O modules within four modules of the power supply (compatible power supplies: 1769-PA2, 1769-PB2, 1769-PA4, 1769-PB4). For expansion, add up to three banks using 1769-RTBN18 terminal blocks.

Maintenance & Reliability

Regularly inspect the controller for dust accumulation and ensure proper airflow to prevent overheating. The internal energy storage circuit maintains volatile memory temporarily, but for secure data retention, use the included SD card (1784-SD1) to automatically load programs. Replace the battery (1747-BA) as needed to preserve real-time clock and memory backup. Following these steps extends service life and reduces downtime.

Compatibility & Integration

The 1769-L30ER integrates with Allen-Bradley CompactLogix systems and supports Ethernet/IP communication. It works with HMIs, SCADA, databases, converters, gateways, and other controllers via its dual Ethernet ports. The USB port allows local programming and diagnostics. Use standard Cat5 or Cat6 cables with RJ45 connectors for 10/100 Mbps transmission up to 100 meters.

Troubleshooting & Common Issues

If the controller fails to communicate, verify the IP address assignment using BOOTP-DHCP. Check LED indicators (RUN, FORCE, BAT, OK, I/O) for status. A flashing BAT LED indicates low battery; replace with 1747-BA. If I/O modules are not recognized, ensure they are within the power supply distance rating of 4 modules and that the terminal block (1769-RTBN18) is properly seated.

FAQs about the 1769-L30ER

Q: What is the maximum number of I/O modules the 1769-L30ER supports?

A: It supports up to eight (8) Compact I/O modules and three (3) expansion banks.

Q: How do I assign an IP address to the controller?

A: Use the Allen-Bradley BOOTP-DHCP utility to assign a unique IP address.

Q: What type of programming cable is required?

A: A cable with RJ45 connector according to IEC 60603-7 is used for programming.

Q: What is the operating temperature range?

A: The controller operates from 0° to +60°C (+32° to +140°F).

Q: Can the 1769-L30ER be mounted on a DIN rail?

A: Yes, it supports both DIN rail and panel mounting.

Q: What non-volatile memory options are available?

A: It ships with a 1784-SD1 card (1 GB), and a 1784-SD2 card (2 GB) is available separately.

Product Support & Availability

The 1769-L30ER is in stock and ready to ship from Petro Auto Tech. As a trusted industrial automation parts supplier, Petro Auto Tech offers fast delivery and dedicated support. Contact us for pricing and availability.