Chapter 13 Structured Texts If users type a symbol which has not been declared, they can click the symbol, click the right mouse button, and click Add Symbol on the context menu to open the Add Symbol window. While typing in the symbol, the system will autofill and show a list with variable symbols for users to choose from. Users can use “ ↑ ” and “ ↓ ” on the keyboard to select or simply click on the variable symbol you’d like to use. 13.3.3 Insert API and Function Blocks Users can insert an applied instruction or a function block in a structured text in ISPSoft in one of the two ways described below.
Method 1 An applied instruction or a function block is inserted according to the format of the applied instruction or the format of the function block. Method 2 Unfold the APIs section or the Function Blocks section in the project management area, and find the item which will be inserted. Select the item, and drag it to the position in which it will be inserted. 13-29