What is the function of the PAULSE instruction?

• A. The PAULSE instruction permanently locks the outputs for 0.3 seconds.
• B. The PAULSE instruction reads a sensor value and stores to a variable.
• C. The PAULSE instruction acts as a momentary contact switch for Universal Output(s) with a default time of 0.3 seconds, without delaying execution.
• D. The PAULSE instruction delays next instruction until timer finishes before continuing.

Answer: (C)

PAULSE creates a short, controlled pulse on the Universal Outputs, acting like a momentary contact switch. It drives the chosen outputs for a fixed duration (about 0.3 seconds) and then the outputs return to their normal state. The instruction does not pause the program flow; the next instructions execute immediately while the pulse runs. This is useful for triggering devices such as solenoids or relays with a brief, precise actuation without delaying the rest of the program. The 0.3-second duration is the default, though some systems allow adjusting the pulse width if needed.