Symbol 
; shortcut: [F11]
Function: The command starts a build operation (a syntax check) for all pool objects that are managed in the POU view and as a result are available throughout the project. First and foremost, this is useful when creating libraries.
Call: Menu bar: “Build”
Requirement: A library project is open.
NOTICE
The command does not result in code generation. In addition, no file is created in the project directory with information about the build operation.