Icons, buttons, and information displayed in the trend chart
Icon Description
Open padlock
You can change the value.
The value represents a limit for the values that are displayed on the relevant axis.
Closed padlock
You cannot change the value.
The value represents a limit for the values that are displayed on the relevant axis.
Legend Each trend is identified by means of its name and a symbol with the same color as the line. The legend
displays the following information consecutively for the trends shown in the chart
(format: Symbol Name Date:Time: Value):
● Trend symbol
● Trend name
● Date:Time (format: DD:MM:YYYY hh:mm:ss.sss
● Value
– Value currently being read in (measuring lines not activated)
– Cursor points to a measuring line (active measuring line): Value at the intersection of the trend and
measuring line (the values at the intersection point are underlined)
Measuring line Measuring lines
SIMATIC PDM makes a measuring line available in trend charts. The measuring line symbol identifies the
current position of the measuring line.
● Legend for measuring line
– The value at the intersection of the trend and measuring line is shown at the intersection
– Active values are underlined
– Interpolated values are not underlined
● Using the measuring line
– Pull the measuring line to the required position
– Removes a measuring line (park position).
– Remove measuring line (Alt-Click)
– Duplicate measuring line (Ctrl-Click)
White Active
Orang
e
Passiv
e
Shaded trend Cause: Data reduction
The trend includes a large number of data points within the displayed range. The individual values cannot
be displayed.
Dotted trends There are no measured values in a range.
7.9.6 Work with trends
Interaction
The following functions are available in dialog boxes with trends:
Functions
7.9 Graphical displays
Help for SIMATIC PDM (V8.2)
Operating Manual, 02/2014, A5E33203676-AA 147
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