Guided scenario30 min· Path total 1 h 5 min

Industrial sensors

ORIENT

What this module is for

Describe sensor output types and predict controller input state.

EXPERIMENT

Exercise several sensor types and observe the input state they produce.

CHECK

A normally closed sensor with a broken wire will present as:

The same as an actuated sensor — a detectable fault stateNormal operationAn analog mid-scale valueAn over-range fault only

APPLY

Explain why a safety circuit prefers a normally closed contact.

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