7 user and access rights management, User and access rights management, L-force | plc designer – Lenze PLC Designer PLC Designer (R3-1) User Manual
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User and Access Rights Management
166
DMS 4.1 EN 03/2011 TD29
7
User and Access Rights Management
The "User Management" and "User Management UI" plug-ins provide functions for
defining user accounts and configure the access rights within a project. Notice that
also device specific user management might be supported for controlling the users
access rights on the PLC file system and objects during runtime.
The rights to access project objects via specified actions are assigned only to user
groups, not to a single user account. So each user must be member of a group.
User Management
Before setting up users and user groups, notice the following:
• The configuration of users and groups is done in the Project Settings dialog.
• Automatically there is always a group "Everyone" and by default primarily each
defined user or other groups are members of this group. Thus each user account at
least automatically is provided with defined default settings. Group "Everyone"
cannot be deleted, just renamed, and no members can be removed from this group.
• Also automatically there is always a group "Owner" containing one user "Owner".
Users can be added to or removed from this group, but at least one user must
remain. This group also cannot be deleted and always has all access rights. Thus it
is not possible to make a project unusable by denying the respective rights to all
groups. Both group and user "owner" might be renamed.
• When starting the programming system resp. a project, primarily no user is logged
on the project. But then the user optionally might log on via a defined user account
with user name and password in order to have a special set of access rights.
• Notice that each project has its own user management! So, for example to get a
special set of access rights for a library included in a project, the user must
separately log on to this library. Also users and groups, set up in different projects,
are not identical even if they have identical names.
Note: The user passwords are stored irreversibly. If a password gets lost, the
respective user account gets unusable. If the "Owner“-password gets lost, the entire
project might get unusable!