ABB ST语言编程(4)

13.2.2Structured Text Editor

The appearance of the structured text editor for a program is shown below:

The code pane is used for writing code in Structured Text. It is a simple text editor.Tabs and spaces are used to structure the code for easy reading.

The code pane may be divided into several ‘tabs’. Each tab is also referred to asCodeBlocks. When the code is compiled the execution order of the code is firstly in taborder (left to right) and then from top to bottom inside the tabs.Instances of variables and function blocks are declared in the declaration pane.Chapter13-4