ABB 800xA Operation page 48

Viewing Trend Data
select the Top of Range field and enter a new number. To change the bottom number
on the Y-axis, select the Bottom of Range field and enter a new number. Click on the
Auto Expand field to dynamically change the range limits to a new limit value as
new values cross the limits. You may also select Use Output Limits to dynamically
change the range limits to a new limit value as the Output Limits are changed. This
only applies to the local machine.
Showing the X-Axis Ruler
To display the ruler dialog, select a point on the trend graph. A ruler is displayed on
the trend graph and moves as the trend is refreshed. This ruler displays the value of
points on the trend graph numerically. The Trend dialog displays the numerical Y-
axis values where the ruler intersects each trace on the trend graph. You can move
the ruler to display the numerical values of other points on the graph by clicking on
any other area on the graph. Setpoint applies to PID loop and is zero otherwise.
Output applies to control and PID loop and is zero in continuous loops. Select OK to
close the Ruler Dialog.
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Section 3 CCF Displays
3BUR002418-600 A