Hi,

OPC UA supports different transport profiles:
– UA-TCP UA-SC UA Binary
– SOAP-HTTP WS-SC UA XML
– HTTPS UA XML
– …

Is it correct that there is no “TLS” by usage of the profile “UA-TCP UA-SC UA Binary”?
I captured exchanged data with wireshark and I see parts of TCP and of course UA Binary. But there is no “TLS” inside.
A colleague told me that OPC UA uses “TLS” all the time. Is this statement correct?

Also when I use the transport profile “SOAP-HTTP WS-SC UA XML” is there a part of “TLS” inside?
When I use HTTPS then I think “TLS” must be inside, but not in the other profiles? Is this correct?

Is there any graphical representation of the captured data for the different profiles?
I mean a graphic for the nested data? Which information (header, …) is added in which profile.

Thank you very much,
Mel