A-B 1769-L30ER CompactLogix PLC Controller

A-B 1769-L30ER CompactLogix PLC Controller

 

 

The Allen-Bradley 1769-L30ER is a CompactLogix 5370 L3 series programmable automation controller (PLC CPU) used in medium industrial automation systems.

Basic Information

• Brand: Allen-Bradley (Rockwell Automation)
• Series: CompactLogix 5370 L3
• Part Number: 1769-L30ER
• Type: PLC Controller (CPU module)
• Memory: 1 MB user memory
• Communication: Dual Ethernet/IP ports (DLR support)

Key Technical Features

• Integrated dual Ethernet ports
• Supports EtherNet/IP industrial network
• Up to 16 Ethernet nodes
• Supports 1769 Compact I/O expansion modules
• USB programming port included
• Supports Device Level Ring (DLR) topology
• CompactLogix 5370 architecture with integrated motion/logic capability (system dependent)

System Role

This is the central processor of a PLC system:

• Executes ladder logic / structured text programs
• Communicates with I/O modules (input/output racks)
• Exchanges data with SCADA / HMI systems
• Controls machines, production lines, and processes

It is not an I/O module and not a power supply—it is the main control brain.

Typical Applications

• Packaging machinery
• Conveyor and logistics systems
• Industrial production lines
• Pump and motor control systems
• Small to medium process automation
• Factory machine control systems

Key Advantages

• High-speed PLC processing (Logix platform)
• Reliable Ethernet/IP communication
• Easy integration with Rockwell ecosystem (Studio 5000)
• Expandable 1769 I/O system
• Compact design saves cabinet space
• Widely used in industrial automation globally

Precautions

• Requires compatible 1769 power supply and I/O modules
• Must be configured using Studio 5000 software
• IP address configuration is required before network communication
• Firmware compatibility must match project version
• Not interchangeable with older SLC / MicroLogix systems