OPC UA Asset Connection

Supported Providers

• ValueProvider

  • read ✔️

  • write ✔️

• OperationProvider ✔️

• SubscriptionProvider ✔️

Configuration Parameters

Asset Connection

Name	Allowed Value	Description
host	String	URL of the OPC UA server, e.g. opc.tcp://localhost:4840
username	String	optional Username for connecting to the OPC UA server
password	String	optional Password for connecting to the OPC UA server

Value Provider

Name	Allowed Value	Description
nodeId	String	nodeId of the the OPC UA node to read/write

Example

{
	"nodeId": "ns=com:example;s=foo"
}

Operation Provider

Name	Allowed Value	Description
nodeId	String	nodeId of the the OPC UA node to read/write

Example

{
	"nodeId": "ns=com:example;s=foo"
}

Subscription Provider

Name	Allowed Value	Description
nodeId	String	nodeId of the the OPC UA node to read/write
interval	long	Interval to poll the server for changes (in ms) currently not used

Example

{
	"nodeId": "ns=com:example;s=foo",
	"interval": 1000
}

Complete Example

A complete example for OPC UA asset connection could look like this

{
	"@class": "de.fraunhofer.iosb.ilt.faaast.service.assetconnection.opcua.OpcUaAssetConnection",
	"host": "opc.tcp://localhost:4840",
	"valueProviders":
	{
		"(Submodel)[IRI]urn:aas:id:example:submodel:1,(Property)[ID_SHORT]Property1":
		{
			"nodeId": "some.node.id.property.1"
		},
		"(Submodel)[IRI]urn:aas:id:example:submodel:1,(Property)[ID_SHORT]Property2":
		{
			"nodeId": "some.node.id.property.2"
		}
	},
	"operationProviders":
	{
		"(Submodel)[IRI]urn:aas:id:example:submodel:1,(Operation)[ID_SHORT]Operation1":
		{
			"nodeId": "some.node.id.operation.1"
		}
	},
	"subscriptionProviders":
	{
		"(Submodel)[IRI]urn:aas:id:example:submodel:1,(Property)[ID_SHORT]Property3":
		{
			"nodeId": "some.node.id.property.3",
			"interval": 1000
		}
	}
}