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Scope: Core (OPC-10000-*) All specs

3 result(s) for Event(s)

OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access

6.5.2.2 Read Event functionality

startTime and the endTime to be identical. This allows the Client to request the Event(s) at a single instance in time. When the startTime and endTime are identical then ... from the Historian . In this case a StatusCode value will be returned for any Event field that cannot be returned. The value of the StatusCode shall be Bad_NoData . When
OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access

6.5.2.4 Read modified functionality

startTime and the endTime to be identical. This allows the Client to request the Event(s) at a single instance in time. When the startTime and endTime are identical then ... from the Historian . In this case a StatusCode value will be returned for any Event field that cannot be returned. The value of the StatusCode shall be Bad_NoData . When
OPC-10000-16 – OPC Unified Architecture - Part 16: State Machines

4.4.2 StateMachineType

which state changes are significant. Servers shall use the GeneratesEvent ReferenceType to indicate which Event(s) could be produced by the StateMachine . Subtypes may add Methods which affect the state ... parent machine. In some cases, the parent machine will produce a single Event that reflects changes in multiple SubStateMachines . FiniteStateMachineType is a subtype of StateMachineType that provides a mechanism