Extension module editor
The editor of the extension modules serves to define extensions and provide the four Metadata, Parameter, I/O, and HMI tabs. The editor can be opened with a double click on the function block in the POUs pool (in the directory according to the given name of the extension).
Change events
The content of the editors is updated automatically if the corresponding function block, text list, image pool or visualization changes. (The mentioned objects will be considered as "corresponding" if they are in the same folder as the extension module.)
Error Handling
In case of fatal errors which prohibit a display of the editors, the error messages will be displayed on the Metadata page. The editor pages are disabled so that they cannot react to any input. An example for this kind of error is a missing module function block.