# Adding the execution control to a POU

1. Start editing the real-time application.
2. In the menu bar, click Program.
3. Add a POU to the program.
4. Add variables to the program.
5. Connect the variables to the POU.

6. The outputs of the POUs may only be connected to variables.

7. Right-click the POU.
8. In the context menu, click Add execution control (EN, ENO).

1. An additional boolean input and an additional boolean output are added to the POU.