Allen Bradley 1785-L20E/E PLC-5/20 Processor

Product Introduction

The Allen Bradley 1785-L20E/E PLC-5/20 Processor is an industrial programmable controller designed to provide reliable logic processing and integrated Ethernet communication for PLC-5 automation systems. Produced by Rockwell Automation and part of the Allen-Bradley PLC-5 controller family, this processor combines traditional PLC-5 control capability with modern network connectivity.

The module features 16K Word SRAM memory for control program storage and system data handling. In addition, it includes embedded TCP/IP communication with EtherNet/IP support, allowing the controller to communicate directly with industrial networks, engineering workstations, and supervisory systems. This capability makes the processor suitable for upgrading existing PLC-5 installations to Ethernet-based automation environments while maintaining compatibility with legacy PLC infrastructure.

Product Specifications

Applications

• Industrial automation networks, enabling PLC-5 systems to communicate through Ethernet-based plant networks.

• Manufacturing production lines, controlling machinery, sensors, and actuators while sharing data with supervisory systems.

• SCADA integration, allowing controllers to exchange operational data with monitoring and visualization platforms.

• Process control environments, where stable communication and controller processing are required for continuous operations.

• Legacy PLC-5 system upgrades, adding Ethernet connectivity to older automation platforms.

• Industrial data collection systems, transmitting production information to management or analytics software.

Advantages

• Integrated Ethernet communication, eliminating the need for additional external Ethernet modules.

• Support for TCP/IP and EtherNet/IP protocols, enabling seamless connection with modern industrial networks.

• 16K Word SRAM program memory, providing sufficient capacity for medium-scale control programs.

• PLC-5 modular architecture, allowing easy integration with existing PLC-5 racks and I/O modules.

• Reliable industrial performance, designed for continuous operation in factory automation systems.

• Simplified network integration, enabling PLC-5 controllers to communicate with HMIs, SCADA platforms, and engineering stations.

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