Adding the execution control to a POU
- Start editing the real-time application.
- In the menu bar, click Program.
- Add a POU to the program.
- Add variables to the program.
- Connect the variables to the POU.

The outputs of the POUs may only be connected to variables.
- Right-click the POU.
- In the context menu, click Add execution control (EN, ENO).
- An additional boolean input and an additional boolean output are added to the POU.