The scan is normally a sequential process of:
A)reading the control logic, evaluating the outputs, and updating the inputs.
B)writing the control logic, evaluating the outputs, and updating the inputs.
C)reading/writing the status of inputs and updating the outputs.
D)reading the status of inputs, evaluating the control logic, and energizing or de-energizing the outputs.

Question

Quizplus · Accepted Answer

The scan process involves reading the status of inputs, evaluating the control logic based on the input status, and then either energizing or de-energizing the outputs based on the control logic evaluation. This is commonly known as read-evaluate-write process. Therefore, the best choice among the given options is D.

The Scan Is Normally a Sequential Process Of