Ladder diagram program development environment
This section introduces the ladder diagram (LD) program language editor, where you develop LD Program Organizational Units (POU).
Ladder diagram program development environment

Item | Description |
---|---|
![]() | Opens the local variable grid to view the variables used by the current program. |
![]() | Goes to the rung with the entered rung number. |
![]() | Zooms in the editor. It resets when the tab is closed and does not affect other tabs. |
![]() | Zooms out the editor. It resets when the tab is closed and does not affect other tabs. |
![]() | Resets the editor to 80% zoom. |
![]() | Makes up the primary portion of the LD editor. In this area, you edit logic using graphical instruction elements. |
![]() | Adds instructions and elements to the editor. |
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