Rockwell Automation FactoryTalk Historian SE 3.0 H2H Interface User Guide - Manual (Page 130)

Interface Diagnostics Configuration
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“Historian Status” (PI_Status)
The .PI_Status Performance Counters Point stores communication information about the
interface and the connection to the Historian Server. If the interface is properly
communicating with the Historian Server then the value of the counter is „0‟. If the
communication to the Historian Server goes down for any reason then the value of the
counter will be „1‟. Once the interface is properly communicating with the Historian Server
again then the value will change back to „0‟.
“Points added to the interface” (.pts_added_to_interface)
The .pts_added_to_interface Performance Counter Point indicates the number of points the
interface has added to its point list. This does not include the number of points configured at
startup. This is the number of points added to the interface after the interface has finished a
successful startup.
“Points edited in the interface”(.pts_edited_in_interface)
The .pts_edited_in_interface Performance Counters Point indicates the number of point edits
the interface has detected. The Interface detects edits for those points whose
PointSource
attribute matches the Point Source ( /ps= ) parameter and whose Location1 attribute
matches the interface ID ( /id= ) parameter of the interface.
“Points Good” (.Points_Good)
The .Points_Good Performance Counters Point is the number of points that have sent a good
current value to Historian. A good value is defined as any value that is not a system digital
state value. A point can either be Good, In Error or Stale. The total of Points Good, Points In
Error and Points State will equal the Point Count. There is one exception to this rule. At
startup of an interface, the Stale timeout must elapse before the point will be added to the
Stale Counter. Therefore the interface must be up and running for at least 10 minutes for all
tags to belong to a particular Counter.
“Points In Error” (.Points_In_Error)
The .Points_In_Error Performance Counters Point indicates the number of points that have
sent a current value to Historian that is a system digital state value. Once a point is in the In
Error count it will remain in the In Error count until the point receives a new, good value.
Points in Error do not transition to the Stale Counter. Only good points become stale.
“Points removed from the interface” (.pts_removed_from_interface)
The .pts_removed_from_interface Performance Counters Point indicates the number of points
that have been removed from the interface configuration. A point can be removed from the
interface when one of the tag properties for the interface is updated and the point is no longer
a part of the interface configuration. For example, changing the PointSource, Location1, or
Scan attribute can cause the tag to no longer be a part of the interface configuration.
“Points Stale 10(min)” (.Points_Stale_10min)
The .Points_Stale_10min Performance Counters Point indicates the number of good points
that have not received a new value in the last 10 minutes. If a point is Good, then it will
remain in the good list until the Stale timeout elapses. At this time if the point has not