Beckhoff EL47 Series Documentation page 62

Commissioning
Fig. 60: Sample program with variables after a compile process (without variable integration)
The control program is now created as a project folder, followed by the compile process:
Fig. 61: Start program compilation
The following variables, identified in the ST/ PLC program with "AT%", are then available in under
"Assignments" in the project folder explorer:
Assigning variables
Via the menu of an instance - variables in the "PLC" context, use the "Modify Link..." option to open a
window for selecting a suitable process object (PDO) for linking:
62 Version: 2.7 EL47xx