3.1 Terms and definitions

For the purposes of this document, the terms and definitions given in OPC 10000-1, OPC 10000-3, and OPC 10000-4, as well as the following apply.

3.1.1 Action

an operation that is executed by a Responder when it receives a request message sent by a Requestor

3.1.2 DataSetClass

template declaring the content of a DataSet

3.1.3 DataSetMetaData

data describing the content and semantic of a DataSet

3.1.4 DataSetReader

entity receiving DataSetMessages from a Message Oriented Middleware

3.1.5 Untitled

3.1.6 DataSetWriter

entity creating DataSetMessages from DataSets and publishing them through a Message Oriented Middleware

3.1.7 Untitled

3.1.8 Requestor

an entity that initiates an Action by sending a request to a Responder

3.1.9 Responder

an entity that executes an Action when a request is received from a Requestor

3.1.10 Untitled

3.1.11 PublishedDataSet

configuration of application-data to be published as DataSet

3.1.12 SecurityGroup

grouping of security settings and security keys used to access messages from a Publisher

3.1.13 SubscribedDataSet

configuration for dispatching of received DataSets