A one-shot,or transitional,contact:
A)operates the same as an NO contact instruction.
B)operates the same as an NC contact instruction.
C)operates the same as a timed closed contact.
D)closes for only one program scan when actuated.

Question

Quizplus · Accepted Answer

A one-shot contact, also known as a transitional contact, closes for only one program scan when actuated. It is useful for generating a single pulse or initiating a sequential control operation. It differs from NO (normally open) and NC (normally closed) contacts, which remain in their respective states until actuated again. It also differs from timed closed contacts, which remain closed for a defined period of time after being actuated.

A One-Shot,or Transitional,contact