A log processing trend log enables calculation within or between various trend logs. With this feature, building managers can gather new information about how the building is operating, they can view historical data that is calculated against new data and in this way detect new trends, they can compare various values and calculate a new trend log displaying relativised behavior, or unify measurements made with different units. The results from these calculations can indicate anomalies that have other reasons than the naturally varying conditions, so that it becomes easier to find problems with the building.
You import trend log data to move trend log data between systems.
You create an extended trend log to store log records for a longer period of time and free up memory in the automation server.
The function of a trend log is to log the variable that it is connected to and store the records.
Use the trend logs view screen to display the recorded activities for a specific feature on this device.
Use the Trend Logs screen to view the available logs on this device.
Use the trend logs information screen to display the properties recorded for each trend log.
You display the recorded activities for a specific trend on this device.
Use the Trend Chart toolbar to manage the trend chart and its series.