Your First Service Commissioning File

This service commissioning file allows you to simulate a machine connecting to Connectware via the OPC UA protocol.

Make yourself familiar with the structure of the service commissioning file below.

• To learn how to connect your first machine using this service commissioning file, see Connecting your First Machine.

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connect-your-first-machine.yaml

connect-your-first-machine.yaml

description: >

    OPC UA Template Commissioning File
    Cybus Learn - How to connect and integrate an OPC UA server
    https://learn.cybus.io/lessons/how-to-connect-and-integrate-an-opcua-server/

metadata:
    name: Example OPC UA Template
    version: 1.0.0
    provider: cybus
    homepage: https://www.cybus.io

parameters:
    opcuaHost:
        type: string
        description: OPC UA Host Address
        default: opcua.demo-this.com

    opcuaPort:
        type: integer
        description: OPC UA Host Port
        default: 51210

resources:
    opcuaConnection:
        type: Cybus::Connection
        properties:
            protocol: Opcua
            connection:
                host: !ref opcuaHost
                port: !ref opcuaPort

    RandomDataExample:
        type: Cybus::Endpoint
        properties:
            protocol: Opcua
            connection: !ref opcuaConnection
            subscribe:
                nodeId: ns=2;i=11021

    mapping:
        type: Cybus::Mapping
        properties:
            mappings:
                - subscribe:
                      endpoint: !ref RandomDataExample
                  publish:
                      topic: !sub 'example/opcua/dataexample'

Structure of connect-your-first-machine.yaml

The service commissioning file contains the following elements.

description

This section contains a short description of the template.

metadata

This section contains the name, version number, provider and homepage of the provider of the service commissioning file.

parameters

This section defines the parameters for the configuration of the OPC UA connection. The following parameters are available:

• opcuaHost: The address of the OPC UA host (default value: opcua.demo-this.com).

• opcuaPort: The port of the OPC UA host (default value: 51210).

resources

This section defines the resources that are used in this example. The following resources are available:

• opcuaConnection: Defines the connection to the OPC UA server.

  • type: Defines the type of the resource. In this case, Cybus::Connection.

  • properties: Defines the properties of the connection.

    • protocol: The protocol used. In this case, Opcua.

    • connection: The connection details, where the parameters host and port refer to the previously defined parameters opcuaHost and opcuaPort.

• RandomDataExample: Defines an endpoint that subscribes to data from a specific node of the OPC UA server.

  • type: Defines the type of the resource. In this case, Cybus::Endpoint.

  • properties: Defines the properties of the endpoint.

    • protocol: The used protocol. In this case, Opcua.

    • connection: Refers to the previously defined OPC UA connection.

    • subscribe: Defines the node (nodeId) from which data is subscribed (in this case ns=2;i=11021).

• mapping: Defines a mapping that forwards the subscribed data to a specific publication target.

  • type: Defines the type of the resource. In this case, Cybus::Mapping.

    • properties: The properties of the mapping.

      • mappings: A list of mappings.

        • subscribe: Defines the end point from which data is subscribed (RandomDataExample).

        • publish: Defines the publication target (topic), whereby a topic (example/opcua/dataexample) is specified.