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Use Case |
List Topology |
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Description |
The OPC UA client shows the topology in a hierarchical tree to the user. The tree is provided by an OPC UA server for FDT OPC Information Model. If the OPC UA server supports a network topology, it is provided according to the 'Device Integration Host Model' defined in OPC UA DI. |
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Stakeholder |
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Preconditions |
Topology is available in OPC UA Server |
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Post conditions |
User can see the topology in a hierarchy |
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Actors |
Engineer, Expert, Observer |
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Trigger |
Whenever a user needs a list of devices for further access |
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Frequency |
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Description |
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Step |
Action |
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1 |
User triggers connect from OPC Client to OPC Server |
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2 |
User starts browsing from node 2:DeviceTopology |
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3 |
OPC Client displays the topology to the user |
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Exceptions |
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Requirements |
User has access permissions to the server |
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Notes |
Network/communication topology Physical topology |
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Open Issues |
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