How Limit Switch Works ?

Presence Sensing is the act of detecting the presence or absence of an object with a contact or non-contact sensing

PLC Pressure Switch Ladder Diagram

Relays in Ladder Logic Tutorials

Electromechanical relays may be connected together to perform logic and control functions, acting as logic elements much like digital gates (AND,

Relay Principle

Relay Principle & its Types

A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating

Reed Switch Principle

Reed switch Working Principle

The reed switch is an electrical switch operated by an applied magnetic field. It was invented at Bell Telephone Laboratories