OPC UA server (2 interfaces)

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orla090978
Posts: 46
Joined: Thu Jan 03, 2019 1:05 pm

OPC UA server (2 interfaces)

Post by orla090978 » Thu Nov 26, 2020 8:45 am

Good evening,

I should install in the same field server one OPC UA server manager connected to two interfaces.
One it is necessary to interface SCADA to the CCTV system and the other is needful to connect SCADA with Level 2 system (to manage data).
Is it possible to have OPC UA with security access for all connections?
Could I link a group of variables to the first connection and another group of variables to the second connection?
Is it better to use the CNS function or DP groups?

Thanks a lot
Best regards,

Orlando

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leoknipp
Posts: 2393
Joined: Tue Aug 24, 2010 5:28 pm

Re: OPC UA server (2 interfaces)

Post by leoknipp » Mon Nov 30, 2020 7:53 am

When asking questions for WinCC OA you should always include the information which WinCC OA version the questions are related to.
The range of functionality may differ between the WinCC OA versions, e.g if new features are included in a new version.

If you define which DP elements shall be accessible via the WinCC OA OPC UA server every connected client can see all elements.
It is not possible to define a different address space for every client.
From a technical point of view it does not make a difference if you use a DP group or CNS. It is only a difference in the configuration.

For details according the security settings please have a look at the WinCC OA Documentation.

Best Regards
Leopold Knipp
Senior Support Specialist

orla090978
Posts: 46
Joined: Thu Jan 03, 2019 1:05 pm

Re: OPC UA server (2 interfaces)

Post by orla090978 » Mon Nov 30, 2020 2:26 pm

Thank you so much it is all clear.
However my WinCC OA version is 3.16.

Best regards
Orlando,

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