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Timers

Delays, pulses and drift-resistant timing

Timers are how a PLC waits. Start with on-delay and off-delay, combine timing with one-shots, then build retained and drift-resistant time patterns.

0
Drives the output high once the input has stayed high continuously for 1 second.
On Delay
EXERCISE
Difficultyeasy
Statusunknown
1
Keeps the output high for 2 seconds after the input goes low (Off-Delay).
Off Delay
EXERCISE
Difficultyeasy
Statusunknown
2
Turns Out_Done on after In_Enable has been on for 5 seconds in total. Pauses retain the elapsed time.
Cumulative Timer
EXERCISE
Difficultyeasy
Statusunknown
3
Produces a 1-second output pulse on each rising edge of the trigger input.
Pulse
EXERCISE
Difficultymedium
Statusunknown
4
Fires a single-scan pulse when the input is released after being held continuously for at least 2 seconds.
Long Press
EXERCISE
Difficultymedium
Statusunknown
5
Flashes an output at 1 Hz (1s ON, 1s OFF) while enabled.
Flasher
EXERCISE
Difficultymedium
Statusunknown
6
Totals a machine's run time as hours, minutes, and seconds, retaining the total through stops, with a manual reset.
Run Hours
EXERCISE
Difficultymedium
Statusunknown
7
Holds the run output high for a cooldown period after a stop command is received.
Delayed Shutdown
EXERCISE
Difficultymedium
Statusunknown
8
Keeps one-second ON and OFF phases aligned without accumulating scan-cycle delays.
Drift-Resistant Flasher
EXERCISE
Difficultyhard
Statusunknown
End