PLC Programming

The Text Editors...
When a variable is open, all of its components are listed after it. A minus sign appears in front of the
variable. If you doubleclick again or press , the variable will be closed, and the plus sign will
reappear.
Pressing or doubleclicking on a single-element variable will open the dialog box to write a
variable. Here it is possible to change the present value of the variable. In the case of Boolean
variables, no dialog box appears; these variables are toggled.
The new value is displayed after the variable, in pointed brackets and in turquoise color, and remains
unchanged. If the 'Online' 'Write values' command is given, then all variables are placed in the
selected list and are once again displayed in black.
If the 'Online' 'Force values' command is given, then all variables will be set to the selected values,
until the 'Release force' command is given. In this event, the color of the force value changes to red
5.3 The Text Editors...
The text editors used for the implementation portion (the Instruction List editor and the Structured Text
editor) of CoDeSys provide the usual Windows text editor functions.
The implementation in the text editors is supported by syntax coloring.
In Overwrite mode the status bar shows a black OV. You can switch between Overwrite mode and
Insert mode by key
The most important commands are found in the context menu (right mouse button or +).
The text editors use the following menu commands in special ways:
5-12 CoDeSys V2.3