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The Trends display screen shows a small bar graph for each logged channel showing the trends over the last hour, last day (24 hours), last week (7 days) or last month (31 days) of downloaded data.
The time period can be selected by the user at the top of the screen. If there is not sufficient data for the time period selected a warning message will be displayd and the Trend display will be left blank. If the logging period is too large for the trend period selected to be displayed properly a warning message will be displayd and the Trend display will be left blank.