Learn about the common symbols and conventions used in relay logic and ladder diagrams for electrical controls, and how they can help you read and understand control circuits.

Definition – What is a PLC? A programmable logic controller is a computer device used by industrial control systems. They can be used wherever there is a need for control devices, due to the ...

This paper presents design of a programmable fuzzy logic controller and its implementation on a complex programmable logic device (CPLD) chip. This digital fuzzy logic controller (FLC) can be ...

Ladder logic is the basis of most control functions. Ladder logic uses switch or relay contacts to implement Boolean expressions. In years past, ladder logic was made possible with discrete relays and ...