Unassign a device
    Unassign a device to remove its association with a parent device. When you unassign a device, all its connections are removed from the project and the device moves to the Unassigned folder as an existing device. 
     TIP: 
    Any changes made to devices while online will only impact the offline project. 
     TIP: 
    To reassign a device, see Add an existing device.
Unassign devices from the 
Devices 
explorer.
      - On the explorer bar, select Devices. Devices.
- SelectInDevicesexplorer, right-click the device and selectUnassign.Unassignin the confirmation dialog. The device moves to theUnassignedfolder.
     NOTE: 
    When you unassign a device, the devices assigned to it become unassigned, and on rack optimized devices, the device connection type reverts to the default setting, Data.
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