● Move axis
You can move an axis.
Hold down the "Ctrl" key. Click on an axis in the chart and move it via drag-and-drop.
The grid within the chart is based on the scale shown to the left of the chart.
● Link axes
This function is used for comparing trend values.
Requirement: A file containing exported trend values is available.
– Select the "Static" entry from the "Display mode" drop-down list.
The time axis is stopped.
– Import the values for a trend.
– Align both axes of the displayed and imported trends in order to match up suitable points
of reference. To do this, use the "Move axis" function and adapt the display range of the
axes.
– Click the "Link axes" button on the toolbar.
– Select the "Strip" entry from the "Display mode" drop-down list.
The axes now move simultaneously and you can compare the values. Changing the
leading axis affects the following axis, but not vice versa.
● Display help
– Device-specific help on trends can be integrated in the device description. You can open
this help by clicking the "Help" button.
– Any existing tooltip help for an object is displayed when you hover the mouse pointer
over an object.
● Print functions
● Export and import function
7.9.7 Editing trends
The manufacturer of a device determines which values/parameters can be visualized and
used. The device description is used to specify how SIMATIC PDM shows data that is to be
displayed in charts. You can only edit data (variables and constants) in charts with SIMATIC
PDM if this is permitted by the device description. Before you can edit a trend, it must be
selected in the Trend Manager.
Functions
7.9 Graphical displays
Help for SIMATIC PDM (V8.2)
Operating Manual, 02/2014, A5E33203676-AA 149
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