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What is a PLC? – Programmable Logic Controller

S Bharadwaj Reddy
A Programmable Logic Controller, also called a PLC or programmable controller, is a computer-type device used to control equipment in an industrial facility. The kinds of equipment that PLCs can...

Introduction to PLC Ladder Diagrams

S Bharadwaj Reddy
As an introduction to ladder diagrams, consider the simple wiring diagram for an electrical circuit in Figure 1.1a. The diagram shows the circuit for switching on or off an electric...

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