TOF Timer (Off Delay Timer

Use this timer to delay turning an output OFF. The TOF Timer Out bit turns OFF when the timer has finished running.

When the input condition of a TOF timer rises (positive RLO):

• The Timer Out bit turns ON.
• The Timer loads: the Preset Value is loaded into the Current Value.

When the input condition falls (negative RLO):

• The Timer begins to decrement.
• The Timer Out bit remains ON while the timer runs.
• When the current value reaches 0, the Timer Out bit turns OFF.

If the timer's input condition rises while the timer is decrementing, the Timer Out bit remains ON and the timer stops running. The current value is not retained.