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Web-Based Energy Performance Analysis Tools
Time Series
The time series plot allows you to view a time series for one day of data
for up to five points. The default time series shows the current date up
to the current time. Use the calendar to view other days. Figure 2
shows power data for June 17, 1998, at 11:20AM. (Red=Whole Building; Green=Chillers+Air
Handlers+Pumps+Cooling Tower; Blue=Air Handlers)
To display a time series graph, click on "Time Series" on
the main page.
The next screen has four panels.
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Select a folder. If you are not sure which folder to look at, go to the
Point Name Reference. The headings correspond
to folders (AHU, CHILLER1, CHILLER2, CTOWER, POWERS, PUMPS, SYSTEM, WEATHER,
& STAT_PRES).
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When you select a folder, the points in that folder will be displayed in
panel 2. Select one or more points. You can return to panel 1 if you wish
to load points from another folder as well, or continue to panel 3.
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The points selected in panel 2 are displayed here. If you login again from
the same IP address, the points you viewed last time will be displayed
here, and thus you could skip panels 1 and 2 if you wanted to view the
same points again. You can select points and delete them from your list
as well. The maximum is five points. Additional points may appear on the
list but they will not be displayed on the graph.
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Click OK to display your time series.
Figure 2. Time Series Graph
Navigation:
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Limits. You may change the limits by typing in the text entry boxes.
Click OK to change limits for this session or click Save Limits to save
for future sessions.
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Scale. The default is linear. Click the Log Scale button to view
data on a log scale.
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Axes. The default y-axis labels correspond to the first point in
the list. Click on a different point to view the axis for that point. The
color of the axis labels corresponds to the color of the point in the point
name list.
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Date. The default date is the current day, up to the current time.
Use the calendar to select a different day.
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Box and Zoom. Select a box with the cursor and zoom in on important
data. Press "r" to return to original scale.
Back
: XY Plots
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