Honeywell Centraline FALCON User Manual page 223

USER GUIDE
Here you can trend datapoints. Datapoints to be trended can be
added and deleted from the Points in Trend list. Trending can be
done in two ways, time-based or value-based. When using time-
based trending, a datapoint value will be recorded in a defined log
interval, e.g. every 30 seconds. When using value-based trending,
a datapoint value will be recorded if its value has been exceeded by
a certain amount, e.g. 0.1 °C. These values are called trend
parameter.
Trending can be done for a defined time range. Trend result (trend
records) can be saved in a file.
NOTE:
A trended point is only displayed if the user's access level is equal
to or higher than the read access level of the trended point.
2. To add datapoints to the list for trending, click on the ADD button.
RESULT: The Add Points to Trend dialog box displays.
3. Under Datapoint Filter, define the filter to display desired datapoints to be
trended by doing one of the following:
bb. Under Plant, select plant(s) of which datapoints you want to be filtered by
clicking the BROWSE button.
cc. Under Point Type, select the point type to be filtered.
dd. Under Point Name, specific datapoint names can be filtered by entering a
search text. Wildcards can be used for filtering. By default all datapoints will
be displayed as indicated by an asterisk. The filter function is case-sensitive.
To display specific datapoint names, enter the desired search text.
ee. Click the GO Button to apply the filter.
RESULT: All datapoints matching the filter criteria will be displayed under
Datapoint Selection in the Available Datapoints list.
Datapoints are selected/deselected from trend status by moving them between
the Available Datapoints and the Selected Datapoints list.
4. To move datapoints between lists, do the following:
ff. Highlight the datapoint(s) to be moved in the Available Datapoints list.
Multiselection by using the CTRL or the SHIFT key is possible.
gg. Or, click the checkbox at the point name in the Selected Datapoints list.
hh. Click the SINGLE ARROW button with the desired direction.
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FALCON
EN2Z-0962GE51 R0715