The OPENSCS Security Client Facet defined in Table 73 includes Conformance Units for Clients that are not included in other OPC UA defined Facets and Profiles. This Facet is required to meet the security requirements of OPENSCS.
Table 73 – OPENSCS Security Client Facet Definition
|
Security Conformance Unit |
Defined in |
Optional / Mandatory |
|
OPC UA Authority Profile |
M |
|
|
Security Time Synch – NTP / OS Based support |
M |
|
|
Security Default Application Instance Certificate |
M |
|
|
Security Policy Required |
M |
|
|
Authorization Service Client |
M |
OPENSCS security requirements mandate that the session shall always be authenticated. The use of the security policy SECURITY_POLICY_NONE is not allowed.