Product Overview

The 1769-L30 is a versatile programmable automation controller (PAC) from the Allen-Bradley CompactLogix 5370 L3 family, specifically engineered for moderate memory applications and high-speed discrete process control. Featuring 1 MB of volatile user memory and dual Ethernet ports, the 1769-L30 supports advanced networking topologies such as Device Level Ring (DLR) and Linear. This controller is designed to act as a centralized hub for up to 8 local 1769 Compact I/O modules, providing a chassis-less, space-saving solution for industrial cabinets. With integrated Open Socket TCP/UDP capabilities, it seamlessly communicates with non-Rockwell devices, including barcode scanners, printers, and third-party analytical instruments.

Technical Specifications

The 1769-L30 provides robust processing power and versatile communication options for industrial-grade logic execution.

• Manufacturer: Rockwell Automation / Allen-Bradley

• Model Number: 1769-L30

• Controller Family: CompactLogix 5370 L3

• User Memory: 1 MB (Volatile)

• Non-Volatile Memory: Secure Digital (SD) card support (1 GB included)

• Local I/O Capacity: Supports up to 8 × 1769 Compact I/O modules

• EtherNet/IP Nodes: Up to 16 nodes

• Communication Ports:

• 2 x Ethernet (10/100 Mbps, RJ45)

• 1 x USB 2.0 (Type B) for programming and configuration

• Network Topologies: Device Level Ring (DLR), Linear, Star

• Protocol Support: EtherNet/IP, Open Socket (TCP/UDP), DeviceNet (via 1769-SDN)

• Execution Environment: 32 Tasks, 100 Programs per task

• Power Supply Requirement: Compatible with 1769-PA2, 1769-PB2, 1769-PA4, 1769-PB4

• Operating Temperature: 0°C to +60°C (32°F to 140°F)

• Dimensions: Standard 1769 form factor for DIN-rail or panel mounting

Key Functional Advantages

• Integrated Ethernet Switching: The dual Ethernet ports on the 1769-L30 function as an embedded switch. This supports Device Level Ring (DLR) technology, ensuring the control system remains operational even if a single point of the network ring is severed.

• Flexible Third-Party Integration: Unlike standard logic-only controllers, the 1769-L30 supports "Open Socket" communication. This allows engineers to write custom code for direct data exchange with Ethernet-enabled equipment that does not natively support EtherNet/IP.

• Battery-Free Operation: The controller utilizes an internal energy storage module to maintain volatile memory during power outages, eliminating the risk of data loss and the environmental/maintenance costs of lithium batteries.

• Compact Footprint: By eliminating the need for a separate chassis, the 1769-L30 allows for high-density I/O configurations in restricted spaces.