Configuring OPC-UA-Subscriber node

Proceed as follows to configure and use OPC-UA-Subscriber node.

1. Configure the server/node.conf.yaml file.
   1. In the ConnectorProviders section, under ACMfG subsection, specify the following properties.
      • metadataFilePath property

        metadataFilePath=<path of the metadata file>

        You can also mention the full path through the toolkit on the UI here.

        OPC-UA-Subscriber Node Properties - OPC-UA-Subscriber > Basic > Dataset Items

      • PublishingInterval property

        PublishingInterval=8000

        This is an optional property and by default, the value of the property is 300 milliseconds. The property specifies the time interval in which the publisher publishes the data. If more than 1 publisher is used, you can specify average publishing interval of all the publishers.

2. Configure and save the OPC-UA-Subscriber metadata text file. A metadata file contains the Fields that specify the Name and Type of a data.
   • Type is a mandatory property. The data types that are specified in the metadata file must be according to the sequence in which the properties are published from publisher. Otherwise, the Integration Server stops.
   • The Name property is optional. If the property names are not provided, a default name is given, such as 'Field1', 'Field2' and so forth.
   • For your reference, check Sample_Metadata_File_AllTypes.txt file that is located in the <installer_location>/runtime/amd64_nt_4/setup folder. You can update and use this file as per your requirement.
   • You can choose either one of the following formats for your metadata file.
     The following example is a metadata file that contains the property names and the data types.

     Name: "Temperature-Sensor Measurement"
     Fields:
     [1] Name=Time, Type-Datetime
     [2] Name=Bool, Type=Boolean
     [3] Name=Temperature, Type=Int32, Unit-Celsius, Range={1,100}
     [4] Name=Distance, Type=Float
     [5] Name=Name, Type=String

     The following example is a metadata file that contains only the data types.

     Type=Duration
     Type=EnumValue
     Type=LocaleId
     Type=NodeId
     Type=QualifiedName
     Type=UtcTime

3. Create a flow with the OPC-UA-Subscriber Node.
   1. Click the Manufacturing drawer from the Palette view. The Manufacturing drawer lists the available built-in nodes.
   2. Drag the OPC-UA-Subscriber node from the Manufacturing drawer list to the Flow Exerciser.
   3. Click the Properties tab to set the node properties.
   4. Go to OPC-UA-Subscriber Node Properties - OPC-UA-Subscriber > Basic. Refer the OPC-UA-Subscriber node topic for properties details.