Trends
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279 Topic(s)
Concept
You use trend logs to record values, such as a sensor. A trend log can also log consumptions, such as energy consumption or water consumption.
How to
You disable the TimescaleDB connection for all servers that are supposed to have a connection to the database you are backing up and/or restoring to make sure you are working with the correct database.
How to
You enable the TimescaleDB connection for all servers that are supposed to have a connection to the database you are backing up and/or restoring to make sure you are working with the correct database.
Concept
You use a trend log to collect data and then store the records. A record contains a log value or an event as well as its time stamp and an optional comment. A trend log can log an analog variable, a digital variable, or an integer variable.
Concept
The implicit log is a change of value trend log which monitors the IO variable and records a new value if the variable exceeds the delta. Each log value is stored as a record in the trend log. The delta is automatically defined by the EcoStruxure Building Operation software depending on the measured unit of the device that is connected to the IO port.
Specifications
Concept
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.
How to
You import trend log data to move trend log data between systems.
How to
You create an extended trend log to store log records for a longer period of time and free up memory in the automation server.
Concept
The function of a trend log is to log the variable that it is connected to and store the records.