Summary
Highlights
A Programmable Logic Controller (PLC) is a computer designed for industrial automation, reducing human interaction and increasing precision and efficiency. PLCs allow direct wiring of inputs and outputs, eliminating the need for many control devices, saving money, and simplifying circuitry.
Changes to control circuits are made within the PLC project, avoiding rewiring. For instance, controlling multiple motors with one push button is simple with a PLC, and complex modifications like staggering motor start times only require changes in the ladder code, not additional hardware.
Modern PLCs store projects in memory using industry-standard programming languages, ensuring the preservation of work. They are built for industrial environments, offering superior longevity (20-30 years of support) for spare parts and software, unlike traditional PCs.
PLCs are easily expandable with additional modules, allowing system growth without replacement as I/O capacity needs increase. AutomationDirect provides user-friendly PLCs at competitive prices and offers a selection tool to help choose the right PLC based on input/output needs and features. Their PLC software is free to try.