What is the definition of "PLC"?

A Programmable Logic Controller, or PLC, is a ruggedized computer used for industrial automation.

These controllers can automate a specific process, machine function, or even an entire production line.

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How does a PLC work?

When the PLC is put into operation, its working process is generally divided into three stages, namely, input sampling,

user program execution and output refresh.Completing the above three stages is called a scan cycle.

The programmable logic controller's CPU repeats all three phases at a certain scanning speed throughout the run.

Input sampling

User program execution

The output refresh

Programmable Logic Controller by Unitronics

Unitronics is a pioneer in the manufacture and design of Programmable Logic Controllers

with integrated HMI panels and built-in I/O.

They launched the very first All-in-One PLC on the market and have continued to improve the technology

based on market feedback and industry advancements.

Unitronics now offers several rugged PLC product lines to support a broad range of system requirements.

Compactly designed, these game-changing controllers create immediate savings

by eliminating time-intensive tasks such as PLC-Panel wiring and communication set up.

Unitronics supports the All-in-One concept with revolutionary software that enabled Ladder control, HMI design, and all hardware and communication configuration to be programmed in a single, simple software environment.

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