Function: The command starts the build operation for the active application.

Call: The command is not in any menu by default. You can add it to a menu by using the dialog from “Tools  Customize” (command category “Build”).

During the build operation, CODESYS performs a syntactic validation of all objects in the application. However, code is not generated like at log in to the target system or download of the application. The build operation is always performed automatically when you log in with a changed program.

When the check is complete, CODESYS displays any error messages or warnings in the message view (“Build” category).

If the program has not been changed since it was compiled without errors the last time, then it is not recompiled. The message "The application is current" appears. If the syntactic validation is repeated, then you must execute the “Rebuild” command.