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reading all node attributes

It is possible to read all attributes of a node by using attribute: All in the Read node

The payload will contain all attributes of the node. The payload will be an object with a structure similar to this one:

{
    attributeId: "All"
    nodeId: "ns=0;i=2255"
    payload: {
        nodeId: "ns=0;i=2255",
        statusCode: "Good",
        nodeClass: "Variable",
        browseName: "NamespaceArray",
        displayName: "NamespaceArray",
        description: null
        writeMask: 0
        writeMaskAsString: "None"
        userWriteMask: 0
        userWriteMaskAsString: "None"
        value: {
            Value: [    
                "http://opcfoundation.org/UA/",
                "urn:opcuademo.sterfive.com:NodeOPCUA-Server-for-CTT",
                "http://opcfoundation.org/UA/DI/",
                "http://opcfoundation.org/UA/ADI/",
                "http://opcfoundation.org/UA/AutoID/",
                "http://opcfoundation.org/UA/MachineVision",
                "http://opcfoundation.org/UA/Robotics/" ,
                 "http://opcfoundation.org/UA/CommercialKitchenEquipment/",
                 "urn://node-opcua-simulator",
                 "http://sterfive.com/UA/CoffeeMachine/"
            ],
            ServerPicoseconds: 141996000
            SourcePicoseconds: 780667000
            ServerTimestamp: "2024-01-27T09:55:24.897Z"
            SourceTimestamp: "2024-01-23T20:54:16.573Z"
        }
        dataTypeName: "String",
        dataType: "ns=0;i=12",
        valueRank: 1,
        arrayDimensions: [0],
        accessLevel: 1,
        accessLevelAsString: "CurrentRead",
        userAccessLevel: 1,
        userAccessLevelAsString: "CurrentRead",
        minimumSamplingInterval: 1000
    }
}
note

The All attribute requires that you read a single nodeId, in the operation. If you want to read multiple nodes, you need to use multiple Read nodes.

Application examples​

Reading all attributes of a data type node​

You can explore for instance the DataType Definition of an extension ExtensionObject DataType node, like the RfidScanResult.

Here is the typical result if you inject the RfidScanResult dataType nodeid to a Read node set up to read All attributes.