Tags from OPC UA Servers do not appear in the Tag Browser

Possible cause and solution:
  • The Tag Browser is browsing tags from an application that does not have a
    FactoryTalk Linx
    OPC
     UA Connector.
    A
    FactoryTalk Linx
    OPC
     UA Connector only provides tags to a single
    FactoryTalk
     application. To use the same tags in multiple applications, create one
    FactoryTalk Linx
    OPC
     UA Connector in each application, and connect the same
    OPC
     UA Servers to each
    FactoryTalk Linx
    OPC
     UA Connector.
  • The
    FactoryTalk Linx
    OPC
     UA Connector is unable to communicate with the
    OPC
     UA Server.
    See "Unable to connect from a
    FactoryTalk Linx
    OPC
     UA Connector to an
    OPC
     UA Server".
  • The data type of the
    OPC
     UA node is not supported.
    Change the data type of the
    OPC
     UA node to a supported type.
    Run a tag analysis to determine which tags are unsupported:
    1. In
      Explorer
      , right-click the
      FactoryTalk Linx
      OPC
       UA Connector
      , then select
      Properties
      .
    2. Select
      OPC
      UA Servers
      , select the
      OPC
       UA Server
       from the list.
    3. In
      Properties
      , select
      Analyze Tag Names
      .
  • The
    FactoryTalk Linx
    OPC
     UA Connector has not completed uploading the
    OPC
     UA Server namespace.
    View the date and time that the tags were last refreshed:
    1. In
      Explorer
      , right-click the
      FactoryTalk Linx
      OPC
       UA Connector
      , then select
      Properties
      .
    2. Select
      OPC
      UA Servers
      , select the
      OPC
       UA Server
       from the list.
    3. In
      Properties
      , view
      Tag Information > Refresh Tag Names
      .
      If a spinning wheel icon and the text "Refreshing" appears next to
      Refresh Tag Names
      , the namespace upload is not complete. Wait for the upload to complete, then try browsing tags again.
  • The
    OPC
     UA Server namespace is out of date.
    Refresh the list of tag names from the
    OPC
     UA Server:
    1. In
      Explorer
      , right-click the
      FactoryTalk Linx
      OPC
       UA Connector
      , then select
      Properties
      .
    2. Select
      OPC
      UA Servers
      , select the
      OPC
       UA Server
       from the list.
    3. In
      Properties
      , select
      Refresh Tag Names
      .
    4. In
      Refresh Tag Names
      , select
      Continue with reset
      .
  • The
    OPC
     UA Server does not support subscriptions.
    Change the
    OPC
     UA Server software to a server that supports subscriptions. Use the documentation provided with the
    OPC
     UA Server software to determine if it supports subscriptions.
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