User Documentation

Appendix: Tutorial - creating an IEC project
System manual
2696790000/02/04.2020
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Fig.19-19: Program editor of the POU
19.2 Creating a simple program
The newly created POU is now expanded through programming: A numeri-
cal variable needs to be created that changes its value cyclically.
The necessary entries (declaration of a numerical variable, value change of
the variable) can be carried out in the displayed editor via keyboard entries
in the programming language ST ( structured text) selected during the cre-
ation of the module. The upper editing area is intended for variable declara-
tions and the editing area underneath (still empty) for program actions.
However, there are also tools in u-create studio that help to create the cor-
rect program commands. Dialogue supported variables can be created via
the main menu command Edit > Auto Declare...:
Fig.19-20: The dialogue "Variable Declaration" supports the creation of a variable.
Enter the name and data type of the variable. If you are not yet familiar with
the data types available in u-create studio, click on the button ">" next to the
entry field "Type" and via "Input assistance" open an input Wizard to select
the desired data type there: