CODESYS automatically offers you an online change if you login with an application that is already present on the controller, but has been changed since the last download in the programming system. For this operation, only the modified parts are downloaded again to the controller. A running program on the controller is not stopped during the online change.

In the “Online Change Memory Reserve” view, you can configure memory reserves for the online change for function blocks of a project. In this way, instance variables do not have to be moved to the memory after changes are made to a function block for an online change.

NOTICE

When carrying out the online change, pay attention to the notes in the description of the “Online Change” command.