Hi, very simple question. if i have code in a case and no jump address. Will the code keep executing over and over again?

When the CASE is done the program jumps to END_CASE

Will this be the case with multiple cases? e.g.
CASE Example OF
1.case1();
2.case2();
3.case3();

END_CASE;

Say if case1 executes its code, will it automatically jump to the next or as you said jump to end case.

If example is 1 case1 will be executed
It will not even test if example is 2 but will move to the end_case instruction just because the example is not correct for any other.
This is also not allowed so
1:
and 1..3: is not allowed.
btw it must be a colon and not a comma.
see example i gave you
CASE INT1 OF
1, 5: BOOL1 := TRUE;
BOOL3 := FALSE;
2: BOOL2 := FALSE;
BOOL3 := TRUE;
10..20: BOOL1 := TRUE;
BOOL3:= TRUE;
ELSE
BOOL1 := NOT BOOL1;
BOOL2 := BOOL1 OR BOOL2;
END_CASE;

if int1 is not 1,2,5,10,11,12,13,14,15,16,17,18,19,20 else will be done
otherwise
when it is 1 or 5 bool1 will be true
when int1 is 2 bool2 will be false
if int1 is from 10 to 20 bool3 will be true
etc.

Thanks Shooter

One thing, how do you determin which case is used. How can you choose case 1. or 2. or 3. I presume if you declare your variable "example" as an interger you can feed values in that variable, then choose each case you want.

yes that why example is declared in the VAR list
VAR
example:INT;
END_VAR

but this will be done automatic when you type in the program.

Thanks