Trend Analysis Page - CleaverBrooks CFC Operation, Service & Parts Manual

Fig. 85. Setup page - Language setup.

Trend Analysis Page

Trend analysis of FAlcon status data can be viewed
on the display. A graph displays a historical view of
status data over varying time periods.
Pressing the device icon, then the "Details" button, will bring
up the "Status Details" screen (see Fig. 59). Press the
"Analysis" button to access trend variables (see Fig. 87 and
Fig. 88).
A 2-dimensional graph with status data values shown on the Y
axis over time specified on the X axis is displayed. Status for
the most recent time is represented on the left side of the
graph with older status running towards the right side of the
graph.
Fig. 86. Trend analysis page.
Up to 4 status variables can be viewed at the
same time on one trend analysis graph. Select the status
variables for the graph on the menu page (see Fig. 87). This
menu displays when the Trend Analysis button is selected on
the status page.
CB-8462
Fig. 87. Trend analysis menu page.
The status variable with the largest range (minimum to
maximum) is used as the Y-axis range in the graph.
As the status variables are selected they are listed in a trend
variables list box. The user chooses the status variables from
a drop down menu and then presses the Add button to add
each status variable to the trend variable list.
Each status variable displayed in the trend analysis is
represented by a different colored line, as follows:
1. First status variable = green
2. Second status variable = yellow
3. Third status variable = red
4. Fourth status variable = blue
No more than two different measurement units (such as
degrees), are allowed for the status variables selected in the
trend analysis graph. Attempts to add a status variable with a
third measurement unit are rejected.
A second Y axis is displayed on the right side of the graph to
represent the scale for the second measurement unit. This
can result in minor clipping of the curves on the right side, as
shown in Fig. 88 and 89.
Fig. 88. Trend analysis page with firing rate.
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