Chapter 13 Structured Texts 13.3 Create a Structured Text in ISPSoft 13.3.1 ST Editing Environment Select the Structured Text (ST) option button in the Language section in the Create Program window. Please refer to section 5.4.1 for more information. The environment in which a structured text can be edited is shown below. The table at the upper part of the window is a local symbol table, and the area at the lower part of the window is a working area. There are line numbers at the left side of the working area. Users can set the way in which the line numbers are displayed. Please refer to section 2.3.1 for more information.
After a program editing window in which a structured text can be created is opened, the corresponding toolbar will appear in the ISPSoft window. The functions are described below. Local symbol table Working area 13-27 Icon Function Inserting an example of an assignment structure Inserting an example of an if statement Inserting an example of a repeat loop Inserting an example of a while loop