Function: This command cleans the gaps that can result when you make changes to the declaration of persistent variables. The memory requirement is reduced by this cleaning. When the command is executed, CODESYS displays a warning informing the user about the possible loss of data.

Call: Main menu “Declarations”, context menu

Requirement: The persistence editor (persistent variable list) is active.

Before cleaning you should consider saving the current values of the persistent variables to a recipe (command “Save Current Values to Recipe”). Then you can load the values to the controller again after the next download.