OPC UA Part 1 - Overview and Concepts 1.02 Specification(15)

OPC UA Specification Part1 OverView and Concepts

Release 1.02 7 OPC Unified Architecture, Part 1 Part 4 specifies the Services provided by OPC UA Servers.

Part 5 – Information Model

Part 5 specifies the types and their relationships defined for OPC UA Servers.

Part 6 – Mappings

Part 6 specifies the mappings to transport protocols and data encodings supported by OPC UA.

Part 7 – Profiles

Part 7 specifies the Profiles that are available for OPC Clients and Servers. These Profiles provide groups of Services or functionality that can be used for conformance level certification. Servers and Clients will be tested against the Profiles.

4.3 Access Type Specification Parts

Part 8 – Data Access

Part 8 specifies the use of OPC UA for data access.

Part 9 – Alarms and Conditions

Part 9 specifies use of OPC UA support for access to Alarms and Conditions. The base system includes support for simple Events; this specification extends that support to include support for Alarms and Conditions.

Part 10 – Programs

Part 10 specifies OPC UA support for access to Programs.

Part 11 – Historical Access

Part 11 specifies use of OPC UA for historical access. This access includes both historical data and historical Events.

4.4 Utility Specification Parts

Part 12 – Discovery

Part 12 specifies how Discovery Servers operate in different scenarios and describes how UA Clients and Servers should interact with them. It also defines how UA related information should be accessed using common directory service protocols such as UDDI and LDAP.

Part 13 – Aggregates

Part 13 specifies how to compute and return aggregates like minimum, maximum, average etc. Aggregates can be used with current and historical data. .