Siemens SIMATIC PCS 7 Operating Manual page 148

Functions
7.9 Graphical displays
● Adjust display range
● Capture trend
● Move the ruler
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You can increase or decrease the range of a trend shown in the chart to meet your needs.
– Select a range
Select the starting point with the mouse and, keeping the left mouse button pressed,
select the end point of the range to be displayed. Display is stopped and the desired
range is shown.
– Display minimum and maximum of all trends
Double-click the Y axis. The minimum and maximum of the Y axis are set in such a way
that the values of all trends associated with this Y axis are completely visible in the
interval displayed on the X axis.
– Display the entire time range
Double-click the X axis. The X axis is set in such a way that all trends are included, from
the first to last point.
– Adjust the left display range
You can stretch or compress the corresponding axis by holding down the left mouse
button. The right or upper scale value remains unchanged in this case.
– Adjust the right display range
You can stretch or compress the corresponding axis by holding down the right mouse
button. The left or lower scale value remains unchanged.
– Move the display range
You can move the corresponding axis range by keeping the center mouse button
pressed.
You can capture all trend areas.
Double-click in the trend area. The values for all trends are displayed in the selected area
(currently selected time range / X axis).
You can move the ruler.
Select the ruler with the mouse and move it by keeping the left mouse button pressed. The
changing x-position is displayed in the bottom right of the chart. Moving the "handles" is
depicted as a numeric value. Once the left mouse button is released, the Y value associated
with the X position is displayed.
Help for SIMATIC PDM (V8.2)
Operating Manual, 02/2014, A5E33203676-AA