Siemens SIMATIC ET 200AL, System Manual

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OPC UA communication
9.3 Using the S7-1500 as an OPC UA server
Communication
238
Function Manual, 05/2021, A5E03735815-AJ
See also
User authentication (Page 347)
Users and roles with OPC UA function rights (Page 238)
9.3.3.8 Users and roles with OPC UA function rights
The following options for user authentication use central project settings for project users:
•
For the server:
For configuration of CPU properties (OPC UA > Server > Security > User authentication).
Option: "Enable additional user administration via the security settings of the project"
• For the client:
For configuration of client interface ("Configuration" tab, "Security"). Option: "User (TIA
Portal - security settings)"
Requirement
Before you can edit the security settings, the project must be protected and you must be
logged on with sufficient rights, for example as administrator.
Settings in the project tree > "Security settings"
You access the central user settings and roles in the protected project in the project tree
under "Security settings". This is where you centrally define users with user name, password
and function rights. You can simply use these settings elsewhere.
Figure 9-23 Setting user and roles
Reusing central security settings
Examples for reusing elsewhere:
•
User selection for user authentication for OPC UA server
With this setting, you tell the server which client (user) with which user name and which
password is allowed to access the server.
• User selection for OPC UA client authentication
With this setting, you tell the client the user name and password that it is to use for client
authentication for the server.
The settings for the client and server must correspond: The user name and password used by
the client to log on must have been set up on the server and assigned the required
authorizations.