In the DEN, one can navigate to a particular leaf-node and when one clicks it, a panel appears showing you the value and status of all the items in that subscription. The example below shows you the eight items of the subscription 'LHC-AbortGapIntensity-Beam2'.
To view the details of a particular item in the subscription, double-click on the 'description' and a new panel will appear showing you all the details as shown in the example below for the item 'LHC-AbortGapIntensity-Beam2-aGIntensityRing'.
In case there are problems, one can also trouble-shoot the DNS from this latter panel. As you can see, the displayed information comes only from information stored and update in WINCC-OA. When one presses the button "Interogate the DIP-DNS directly and return its Tags", then a real-time request is sent to the DNS to retrieve the current known structure of the substription and the corresponding item in it gets highlighted as shown in the next example.