Excercise 1

Document created by Joshua8879 on Aug 11, 2018
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Task 1:

 

On PISRV01, I went to PI System management tools and under Data > Current Values, I used the "Tag Search" function to search for *DEP* with * being the wildcard allowing me to search for any "Tag Mask" with DEP in its name with any characters before or after. This gave me the tag CDEP158. To receive its Current Value I then clicked on the "Select All" button and then hit the "OK" button. This gave me a result of:

 

Tag NameTimestampValue
CDEP1588/11/2018 8:10:18PM91

 

 

To see the last 5 values starting 1 hour ago, I went under Data > Archive Editor and used the search function to search for "Tag Mask" CDEP158 with a "Start Time" of *-1h. I then selected "Event Count" and used an input of -5. This game me the results:

 

ValueTimestamp
778/11/2018 5:36:18 PM
838/11/2018 3:44:48 PM
858/11/2018 2:14:48 PM
888/11/2018 12:26:18 PM
678/11/2018 11:36:18 PM

 

 

 

Task 2:

On PISRV1 under Data > Stale and Bad Points I used the search option of "Stale Between" and used the input of 4h and 365 days and changed the "Point Class" option to Any. This yielded a result of one:

 

ServerCollectiveStaleBadTagPoint sourceTimestampValue
PISRV1XXYUL FM006.FlowRateR6/14/2018 9:36:41 PMShutdown

 

 

With a "Value" of Shutdown, and knowing that the default behavior of the PI Shutdown Subsystem is to write the "Shutdown" Digital State to all PI Points when PI is started. The timestamp that is used for the "Shutdown" events is retrieved from a file that is updated by the Snapshot Subsystem. The timestamp is usually updated every 15 minutes, which means that the timestamp for the "Shutdown" events will be accurate to within 15 minutes in the event of a power failure.

This marker can be avoided by configuring PI Buffering on these points and changing the "Shutdown" Parameter to 0 for "OFF"

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