Hi, I am new to PLC's and ladder logic. I am looking to find a solution how to program an output to only trigger if an input has been constantly held for longer than 2 seconds.
Just to give the example, it is for a water level sensor that may oscillate with sloshing water and cause false triggers. I want to know when the water is fully below the level sensor ie - when the sloshing stops and the sensor has been in a constant state for a longer period of time (>2 seconds).
I would ideally want any changing signal to restart the 2 second timer so oscillations could never fool the logic.
Any help is appreciated!
Just to give the example, it is for a water level sensor that may oscillate with sloshing water and cause false triggers. I want to know when the water is fully below the level sensor ie - when the sloshing stops and the sensor has been in a constant state for a longer period of time (>2 seconds).
I would ideally want any changing signal to restart the 2 second timer so oscillations could never fool the logic.
Any help is appreciated!