User Guide

Trends
Trends Reference
7
218 | 393
Siemens
User Guide Version 3.0
A6V10415471
Building Technologies
2017-11-30
7.2.5.5 Data Point Key
The legend for the series contains information on the given data point in the Trend
View.
NOTE:
Use the context menu to hide columns by pointing to the column (Hide Column)
or show/hide individual columns (Visible Columns). Column order and width is
adjustable with the exception of the first column (colors, cannot be adjusted,
moved or hidden).
That most recent value displays in the time bar. In this case, the value or the
information displays at the intersection.
Data Point Key
Column
Description
Series source. Indicates if the displayed data is recorded by the management station
data (online ) or a field device (offline ).
Trended
Object
Displays the object names for the Trendlog object.
Trended
Property
Displays the trended property name for the object.
Alias
Displays the alias name for the object.
Unit
Physical unit for the data point.
Value
Displays the last displayed current value (unless the time bar is in use. In this case,
the value is displayed at the intersection).
Time
Displays the time for the most recent value (unless the time bar is used; in this case,
the value is displayed at the intersection).
Date
Displays the date for the most recent value (unless the time bar is used; in this case,
the value is displayed at the intersection).
Reduced
When this symbol displays, not all values for this series are displayed in the Trend
View (dependent on the displayed time period) (see Reduced Display ).
Y-axis
Indicates the Y-axis where the point is scaled.
Remove
Removes the selected trend value from the Trend View.
Show/hide
Temporarily shows/hides the trend curve in the Trend View.
System Name
Displays the system name of the trended object. The system name enables you to
identify the origin of the trended objects in a distributed environment.
Reduced Display
Displays a maximum of two values per interval. The interval is calculated based on
the set sample rate for the Trend View (Trend Chart Properties).
● 1 interval = Max. displayed samples per series/2.
– Example 1: 100/2 = 50 intervals
– Example 2: 400/2 = 200 intervals
A reduced display can also occur with just a few values, for example, when the
values are recorded within a short interval. With the reduced display, minimum and
maximum values always display.