What is the purpose of a PLC’s real-time clock?
A. To keep track of the time
B. To schedule tasks
C. To trigger events
D. All of the above
Answer:D
What is the purpose of a PLC’s real-time clock?
A. To keep track of the time B. To schedule tasks C. To trigger events D. All of the above
Explanation: A PLC’s real-time clock is used to keep track of the time, schedule tasks, and trigger events. This feature allows the PLC to perform certain actions at specific times, such as turning on a light at a certain time of day or shutting down a machine after a certain period of time.