Hello ILYAZ.
This ist an example in SCL for Randomgenerator.
You CALL this Function example in the OB35.

FUNCTION FC1:VOID

TITLE = 'Zufallszahl zwischen 0 und HiLimit ermitteln'

NAME : RANDOM
(*---------------------Eingangsvariablen/INPUT---------------------------*)
VAR_INPUT
HiLimit : INT ; // Obergrenze des Wertebereichs der Zufallszahl
END_VAR
(*---------------------Ausgangsvariablen/OUTPUT---------------------------*)
VAR_OUTPUT
Random : INT ; // erzeugte Zufallszahl
END_VAR
(*---------------------Lokale Variablen/local Tags----------------------------*)
VAR_TEMP
TimeTck : TIME; // aktuelle Systemzeit
END_VAR
(*---------------------End Of Deklaration--------------------------*)
BEGIN
// Systemzeit lesen /read systemtime
TimeTck := TIME_TCK(); // TIME
// Zufallszahl ermitteln /calculate random number
Random := ABS(DINT_TO_INT(TIME_TO_DINT(TimeTck))) MOD HiLimit ;
END_FUNCTION

kind regards TIMBER

Hi again,
I used the following code in OB1 and that worked. The main principle here is the MOD part. I didnt think it before. I canuse it in any place andin any combination to generate thenumbers I want.
Thank you very much for the code...

CALL "TIME_TCK" //SFC64
RET_VAL:=MD200
L MD 200
ABS
T MD 200
A "pulse_1" //generate number every 1 sec (CPU clock memory merker is M99 for me)
JCN END
L MD 200
L 5 //High limit
MOD
T MD 204 //random number here
END: NOP 0

New question published by marisa is split to a separate thread with the subject Generate any random number.

Best regards
Min_Moderator