Detailed description of the operation of the FTON function
Original instructions
Timing diagram
Timing diagram.
Operation
The following table describes the operation of the FTON function:
Phase
Action
Description
1
Rising edge on the Enable input
The timer is launched and its current value Current_Value increases by 0 towards Presel_Value (in hundredths of seconds).
2
The current value has reached Presel_Value
The output bit OUT_Fton switches to 1, then remains at 1 as long as the Enable input is at 1.
3
The Enableinput is at 0
The timer is stopped even if in run mode, and the Current_Value becomes 0.