Application Configuration enables locking and unlocking applications, pages, variables and function blocks. Locking an application prevents creating or deleting graphical symbols and connections, moving graphical symbols and deleting main applications. Locking a page prevents inserting, deleting and moving the graphical symbols on the page. Locking a variable prevents moving, renaming and deleting the variable. Locking a function block prevents operations such as cutting, copying, pasting, moving and deleting the function block.
Select the item to be locked.
To lock a main application, click the main application tab.
To lock a page, go to the page.
To lock a variable, select the variable.
To lock a function block, select the function block.
In the Object Properties window set the value of the Locked field to True.
To unlock, set the value of the Locked field to False.
A password is required for unlocking a main application. The password is set in Tools > Options > Application Configuration.
Tip: Locking and unlocking is also possible by right-clicking the particular item, and selecting Lock or Unlock from the shortcut menu.