Author Question: The P action qualifier letter ________. A) Executes for one scan when the step becomes inactive ... (Read 117 times)

elizabeth18 · **on:** Jul 28, 2018

The P action qualifier letter ________.

A) Executes for one scan when the step becomes inactive
B) Executes for one scan when the step becomes active
C) Executes for one scan when the step becomes active and again when it becomes inactive
D) All the above

Question 2

Structured Text ________.

A) Is used most often for sequential control problems
B) Is used for logic operations involving only Boolean variables, text-based language
C) Has the ability to evaluate complex mathematical expressions
D) Uses blocks that are linked together to form a final circuit