Contains information about the Node that was changed and the action that occurred to cause the ModelChangeEvent (e.g. add a Node, delete a Node, etc.).
Used to classify Types into Alarm Conditions where the input for the Alarm may take on only a certain number of possible values (e.g. true/false, running/stopped/terminating).
Used by a Server to indicate that an underlying system that is providing Alarm information is having a communication problem and that the Server may have invalid or incomplete Condition state in the Subscription.
This EventType is used by a Server to indicate that a significant change has occurred in the Server or in the subsystem below the Server that may or does invalidate the Condition state of a Subscription.
This VariableType defines the general characteristics of a DiscreteItem that can have more than two states and where the state values (the enumeration) do not consist of consecutive numeric values (may have gaps) or where the enumeration is not zero-based.
