1785-L80E | Allen-Bradley PLC-5/80E Ethernet Processor Module

Product Description

The Allen-Bradley 1785-L80E is a PLC-5/80E controller module designed for advanced machine control and industrial automation. Although discontinued by the manufacturer, it remains a robust option for legacy systems requiring Ethernet and multiple communication interfaces. With 100K word SRAM memory and support for DH+, Remote I/O, and serial communication standards, it provides reliable processing power for complex control applications.

Technical Specifications

• Manufacturer Allen-Bradley

• Product Line PLC-5

• Product Type CPU Processor Module

• Part Number 1785-L80E

• Weight 2.75 lbs (1.25 kg)

• Memory Capacity 100K word SRAM

• Communication Interfaces

• Ethernet port

• Dual DH+ / Remote I/O channels

• RS-232-C, RS-422-A, RS-423-A serial ports

• Mounting Rack-mounted PLC module

• Status Discontinued by manufacturer (aftermarket availability only)

Application Scenarios

• Legacy PLC-5 systems requiring Ethernet connectivity

• Industrial automation environments needing multiple communication protocols

• Large-scale machine control applications with high memory requirements

• Retrofit projects where discontinued Allen-Bradley controllers are still in use

FAQ

Q: Is the 1785-L80E still in production?  A: No, it has been discontinued by Allen-Bradley, but aftermarket suppliers may provide units.

Q: What communication options are available?  A: Ethernet, dual DH+/Remote I/O, and RS-232/422/423 serial interfaces.

Q: How much memory does the module provide?  A: It includes 100K words of SRAM for program and data storage.

Comparison with Similar Models

• 1785-L40E: Lower memory capacity, suitable for smaller applications.

• 1785-L60E: Mid-range controller with Ethernet support.

• 1785-L80E: High-capacity model with expanded communication options.