PLC Controller Allen-Bradley 1785-L80C ControlNet Processor

Product Overview

The 1785-L80C is a ControlNet programmable controller from Allen-Bradley. It belongs to the PLC-5 series. This module manages field devices efficiently. It uses a ControlNet network for fast data exchange. The controller supports up to 3072 I/O points. It features 100K words of user memory. Battery backup ensures data retention. The module operates in harsh industrial environments.

Application Scenarios

This controller works well in automated production lines. It connects variable speed drives and HMI devices. It also manages remote I/O racks. Use it for process control and discrete manufacturing. The ControlNet network provides deterministic communication. The 1785-L80C suits large-scale automation systems. It handles complex logic and high-speed data.

Technical Specifications

The 1785-L80C has a maximum I/O of 3072 points. Analog I/O also reaches 3072. The processor scans I/O in 3 to 10 ms. It supports 2-slot, 1-slot, and ½-slot addressing. The controller dissipates 59 BTU per hour. It consumes 3.3 A at 5V DC. Operating temperature ranges from 0 to 60 °C. Relative humidity stays between 5 and 95 percent. The module withstands 2G vibration and 30G shock. It includes a ControlNet NAP port with 5 Mbps speed. Remote I/O and DH+ ports allow legacy connections. The clock maintains ±5 minutes per month accuracy. Program scan time is 0.5 ms per K word for bit logic.

Installation & Maintenance Guide

Install the 1785-L80C in a 1771 I/O chassis. Ensure the backplane supplies stable 5V DC. Connect the ControlNet cable to the NAP port. Use a battery module (1770-XYC) for memory backup. Replace the battery when the LED indicates low power. Do not operate the module above 60 °C. Keep the enclosure clean and free of condensation. Regularly check network connections for secure fit.

Packing List

1 x 1785-L80C Programmable Controller
1 x Battery Module (1770-XYC)
1 x Quick Start Guide
1 x Documentation CD