Open a TwinCAT 3 PLC project
- TwinCAT XAE is started. A TwinCAT project is open.
- 1. Mark the PLC object in the view Solution Explorer and select the command Add Existing Item in the menu Project or the context menu.
- 2. In the dialog Open, select the desired TwinCAT 3 PLC project or project archive or a library from the file system. To search, you can set the file filter in the bottom right-hand corner of the dialog.
- 3. Click on Open.
- The following cases are possible:
- You have selected a project that was saved with a newer TwinCAT version:
Such a project may contain data that cannot be loaded. You can still open the project, but you need to consider the following: The project may behave in an unexpected manner because it cannot be completely interpreted. Objects that TwinCAT could not load completely or at all are marked in the view Solution Explorer in red and with the text "[unknown]" or "[incomplete]". TwinCAT cannot display objects in the editor that are unknown in the current version. TwinCAT displays incomplete objects in the editor with a warning that the displayed content may not correspond to the original. TwinCAT cannot save incomplete projects under their original name. This is indicated by a write-protection note in the top right-hand corner. You can save the file under a different name. - You have selected a project after whose last change TwinCAT was not terminated properly, but the project option Auto Save was activated:
The dialog Auto Save Backup for handling the backup copy now opens.
See also:
- Open a TwinCAT 2 PLC project
- TC3 User Interface documentation: Command Project/Solution (Open Project/Solution)
- TC3 User Interface documentation: Command Add Existing Item (Project)