Program example

These are examples of programs in the code editor.
Situation
Example
Program with parameters
Program programWithParam(
Input timer inputParameter { pre := 3; },
Output dint outputParameter) {
extern routine main();  // defined in another file
}
Unscheduled program declared in controller application 
ControllerApp ctrlApp() {
    // program instance not in task - unscheduled
    unschedledProgram;
    // program forward declare to program 
    // implementation declared in another file
    extern program unschedledProgram();
}
Scheduled program declared in controller application
ControllerApp ctrlApp() {
    // program instance in task – scheduled
    Task mainTask {
        schedledProgram;
    }
    // program forward declare to program 
    // implementation declared in another file
    extern program schedledProgram();
}
Scheduled program declared in a Smart Object
ControllerApp ctrlApp() {
    // program instance in task – scheduled
    Task mainTask {
        Area.Tank101.inlet.pumpProgram;
    }
} 
program MainProgram() { 
  tag bool boolTag; 
 
  routine ld main() { 
 
    xic(boolTag); { 
 
      Desc := “some rung description”; 
 
    } 
  
 
  } 
 
} 
Program programWithParam( 
  Input timer inputParameter { pre := 3; }, 
 
  Output dint outputParameter) { 
 
  Extern routine main();  // defined in another file 
 
}
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