Beckhoff EL72 1-901 Series Manual page 64

Commissioning
◦ Structured Text (ST)
• Graphical languages
◦ Function Block Diagram (FBD)
◦ Ladder Diagram (LD)
◦ The Continuous Function Chart Editor (CFC)
◦ Sequential Function Chart (SFC)
The following section refers to Structured Text (ST).
After starting TwinCAT PLC Control, the following user interface is shown for an initial project:
Fig. 53: TwinCAT PLC Control after startup
Sample variables and a sample program have been created and stored under the name "PLC_example.pro":
64 Version: 1.9 EL72x1-901x