IF Start_Button = TRUE THEN
    Motor_Output := TRUE;
ELSE
    Motor_Output := FALSE;
END_IF;

A basic SCL program in TIA Portal setting an output when a condition is met.

TON_DB(IN := Start_Button,
    PT := T#5s,
    Q => Motor_Output,
    ET => Elapsed_Time);

Using an on-delay timer (TON) in SCL.

IF Pulse = TRUE THEN
    Counter := Counter + 1;
END_IF;

A simple up-counter that increments when a signal is TRUE.

Temp_Value := Sensor_Value;

Copying a value into a variable using SCL.

Scaled := (Raw_AI * 100.0) / 27648.0;

Scaling raw analog input (0-27648) to engineering units.

IF Start = TRUE THEN
    Motor := TRUE;
END_IF;
IF Stop = TRUE THEN
    Motor := FALSE;
END_IF;

Basic motor latch logic using start/stop switches.

Prev_Signal := Current_Signal;
Current_Signal := Input;
Rising_Edge := Current_Signal AND NOT Prev_Signal;

Detecting a rising edge of a signal.

Sum := 0;
FOR i := 1 TO 10 DO
    Sum := Sum + Values[i];
END_FOR;

Summing values of an INT array.

Double_Value := In_Value * 2;

A Function Block that outputs double the input value.

PID_DB(
    PV := Process_Value,
    SP := Setpoint,
    OUT => Control_Output
);

Calling a PID controller block in SCL.