ApplicationInstance – OPC Unified Architecture - Part 2: Security Model

OPC Unified Architecture - Part 2: Security Model

v1.05.06

1Scope
2Normative References
3Terms, definitions, abbreviated terms and conventions
4OPC UA security architecture
5Security reconciliation
- 5.1Reconciliation of threats with OPC UA security mechanisms
- 5.2Reconciliation of objectives with OPC UA security mechanisms
6Implementation and deployment considerations
7Unsecured Services
8GlobalDiscoveryServer Security
9Certificate management
Annex AMapping to ISA/IEC 62443-4-2 (informative)
Annex BECC vs RSA

3.1.3 ApplicationInstance

individual installation of an OPC UA program with a globally unique identity

Note 1 to entry: There can be several ApplicationInstances of the same application running at the same time on several computers or possibly the same computer.

Note 2 to entry: The system wide unique identity is provided by the ApplicationUri