What is shown on a ladder diagram?

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Multiple Choice

What is shown on a ladder diagram?

Ladder diagrams depict the control logic of a circuit, focusing on how control devices interconnect to govern what happens in the system. They show elements like relays, contactors, timers, and other control blocks that process inputs and drive outputs. While sensors and actuators may appear in the diagram, the purpose is to illustrate how control devices manipulate signals to achieve the desired action, not to depict every physical component or power source in detail. For example, a rung might show a sensor input closing a contact to energize a relay coil, which then uses its contacts to control an actuator—highlighting the control logic rather than the raw hardware.

Ladder diagrams depict the control logic of a circuit, focusing on how control devices interconnect to govern what happens in the system. They show elements like relays, contactors, timers, and other control blocks that process inputs and drive outputs. While sensors and actuators may appear in the diagram, the purpose is to illustrate how control devices manipulate signals to achieve the desired action, not to depict every physical component or power source in detail. For example, a rung might show a sensor input closing a contact to energize a relay coil, which then uses its contacts to control an actuator—highlighting the control logic rather than the raw hardware.

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