CoderDude - 2018-02-15

I want to initialize a variable using expressions, for instance

myVar : INT := 3 + x + 2*y;

It seems this can be done in CoDeSys 3.5: ... variables/

However this gives me compiler errors in CoDeSys 2.3. Is there some compiler option or so I could use to enable this? Or some neat workaround?