I am trying to implement a Ladder Logic (LD) function block in CoDeSys that increments a value A by B every T time interval. My Structured Text (ST) version works perfectly in simulation, but when I implement it in LD, it does not work.
The ST code:
PROGRAM ADDITION
VAR_INPUT
A : LREAL ;
B : LREAL ;
T : TIME ;
END_VAR
VAR
Timer : TON ;
END_VAR
Timer (IN:=TRUE, PT := T);
IF Timer.Q THEN
A := A + B ;
Timer(IN := FALSE ) ;
END_IF;
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I am trying to implement a Ladder Logic (LD) function block in CoDeSys that increments a value A by B every T time interval. My Structured Text (ST) version works perfectly in simulation, but when I implement it in LD, it does not work.
The ST code:
PROGRAM ADDITION
VAR_INPUT
A : LREAL ;
B : LREAL ;
T : TIME ;
END_VAR
VAR
Timer : TON ;
END_VAR
Timer (IN:=TRUE, PT := T);
IF Timer.Q THEN
A := A + B ;
Timer(IN := FALSE ) ;
END_IF;
Hi Lamine97, if you are struggling with the LD implementation it would be more helpful for us to see that code in a screenshot.