Lenze VisiWinNet VisiWinNET Smart - Handbuch (Seite 184)

Project example
User administration
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184 SHP−VWNS DE/EN 6.1
4.5 User administration
The VisiWinNET
â
Smart administration system is used to assign person−specific rights
within the visualisation application. Input control elements can be deactivated and access
to information via output control elements can be refused. VisiWinNET
â
Smart supports
two administration systems for users:
Level−orientated user acknowledgement: Users and control elements can be assigned to
one of 999 levels. If the level of a control element is higher than that of the recently
logged−on user during the runtime, use of the control element is refused.
Right−orientated user administration: A right is assigned to the control elements in the
application and the user must possess this right in order to be able to make use of a control
element (e.g. "Edit recipe"). The rights are then assigned to the users who are permitted to
use the control elements. This is useful, especially in a client−server system, if several
employee hierarchies (groups of employees who have been divided into authorisation
levels independently of each other) work in the network. The decision as to whether users
are to be enabled to use the control elements is made on the basis of a comparison of the
rights of users and control elements.
User administration is carried out on the basis of three definitions in the project database:
User group: contains a group of specific users and the characteristic parameters for all the
users contained in it. The user group is used to manage the references to the rights needed
to make use of the application.
User: contains the access information (log−on name and password) and the activation
status of a user.
Right: Rights determine the information assigned to the control elements of the
application. The "Authorisation" property is used to assign a right to a control element. A
logged−on user is permitted to make use of the control element only if the user−group
definition of the user contains a reference to this right. Rights are only used in the
right−orientated form of user administration. In the level−orientated form of user
administration, the "Authorisation" property of the control element expects a number.
All VisiWinNET
â
Smart control elements contain an "Authorisation" property. In this
property, the name of the right that enables a control element to be used during the
runtime has to be specified. It is also necessary to specify how the control element behaves
in the event of a lack of authorisation. If the property is expanded in the Properties window,
it is possible to choose between "Disabled" and "Invisible" in the "Mode" setting field.