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Containment examples

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  • Last UpdatedDec 03, 2024
  • 2 minute read

You can have a Tank object that contains two DiscreteDevice objects that represent its inlet and outlet valves.

Note: Base templates cannot be contained by another template, either as the container or as the template being contained. You can only use containment with derived templates.

To implement containment

  1. Create the following instances: Tank1 from $UserDefined and Valve from $DiscreteDevice. Valve has only one name, Valve.

  2. In the Model or Deployment view, drag Valve on to Tank1.

    Note: If Tank1 already contains an object with a contained name of Valve, the Galaxy generates a unique contained name for the newly contained object, such as Valve_001.

  3. Change the contained name of Valve within Tank1 to Outlet. Valve can now be referred to by its tagname, Valve, as well as its hierarchical name, Tank1.Outlet.

  4. Create an instance called Reactor1 from $UserDefined.

  5. In the Model or Deployment view, drag Tank1 onto Reactor1.

    Example of how one object can contain another such as a reactor containing a tank and valve

  6. Change the contained name of Tank1 to Holding. Tank1 now has two names, Tank1 and Reactor1.Holding. Also, Valve has a three-part hierarchical name: Reactor1.Holding.Outlet.

    For the three objects in this example (Reactor1 containing Tank1 containing Valve), the following naming hierarchy exists:

    Example of how one object can contain another such as a reactor containing a tank and valve

To implement template-level containment

Note: Contained Templates do not have tagnames. When an instance hierarchy is created from a template and its contained children, unique tagnames will be created for the instances based on their contained names.

  1. Create the following derived templates: $Tank from $UserDefined and $Valve from $DiscreteDevice.

  2. Derive $Inlet from $Valve.

  3. In the Template folder, drag $Inlet on to $Tank. If $Tank already contains a template named Inlet, the Galaxy generates a unique tagname for the new contained template, such as Inlet_001.

    The contained template now has a hierarchical name $Tank.Inlet.

  4. Create an instance (Tank001) of $Tank.

  5. The Model and Deployment views show an instance Tank001 that contains an instance called Inlet.

    Example of how one object can contain another such as a plant area containing a reactor

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