A timer is a simple automation component which is used to manage actions over a period

of time or control how long actions last.The timer is a control device which triggers an
action according to a time and a function. After a predefined time has elapsed, the timer
closes or opens one or more contacts.
Timing cycles, whether single shot or repetitive, are started by latching inputs or pulsed inputs,
allowing a wide variety of functions to be created.