Ladder logic is a programming language that represents a program by a graphical diagram based on the circuit diagrams of relay logic hardware. It is primarily used to develop software for programmable logic controllers (PLCs) used in industrial control applications. The name is based on the observation that programs in this language resemble ladders, with two vertical rails and a series of horizontal rungs between them.
Read more about Ladder Logic: Overview, Example of A Simple Ladder Logic Program, Examples, Additional Functionality, Limitations and Successor Languages
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