User databases (user DBs)
 | Allow operating system access for authorized users only The content of the user database is protected against manipulation with a signature. The names of groups, object protection levels and users are not encrypted and could be read. Access to the IPC should be restricted to authorized users via the operating system. |
| No changes in settings of a user database when a project is open No project may be open when changing the settings of a user database. |
| No change of user when a project is open No project may be open when changing the user. |
New from TwinCAT 3 Build 4024.8: Extensions for user databases
A user database can be extended by so-called "extensions" from this version onwards. You can find details in the chapter Extensions for user databases.
Further Information
- Creating a user database
- Setting default settings for the user database in Visual Studio
- Select the current user database in Visual Studio
- Default user in the user database
- Extensions for user databases
- Expanding the user database
- Linking the user database to a project
- Assigning user access rights in the project
- Distribution / exchange of user databases