From the course: Electrical Systems: Reading Drawings and Schematics

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Components of a ladder diagram

Components of a ladder diagram

From the course: Electrical Systems: Reading Drawings and Schematics

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Components of a ladder diagram

- [Instructor] Electrical schematics used to illustrate electric logic circuits are called ladder diagrams because on paper they resemble a ladder. The electric components or miniature circuits in a ladder diagram usually share the same power source or voltage and interact with each other to form a common purpose. Let's take a look at some of the common components or elements of a ladder diagram. First, a ladder diagram has two sides or rails as they're sometimes referred to. These rails represent the two poles of power that powers the individual circuits of the ladder. Horizontal pieces of the ladder are often called rungs. These circuits operate in parallel usually and interact with each other to create a process or processes. When these processes interact with each other it is sometimes referred to as ladder logic. Some ladder diagrams have conductor and rung numbers on them so that the user can reference terminations in…

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