Ladder diagrams document only the control circuit wiring.

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Ladder diagrams are a type of electrical diagram used in industrial automation and control systems. They document the control circuit wiring, which includes the electrical connections and components used to control machines and processes. They are typically used to depict the sequences of operations and the logic used to control various actions, such as turning motors on and off, opening and closing valves, and monitoring sensors. Ladder diagrams are not used to document power circuits or other types of electrical systems.

Ladder Diagrams Document Only the Control Circuit Wiring