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Konzept

Konzept


Produkte: AS-B, Enterprise Central, Enterprise Server, AS-P, Project Configuration Tool
Funktionen: Trends
Produktversion: 3.3, 2022
23.07.2021

Trend Log Types

arrow1_rotationChange of Value Trend Logs arrow1_rotationInterval Trend Logs arrow1_rotationLog Processing Trend Log arrow1_rotationManual Trend Logs arrow1_rotationVariable Triggered Trend Logs arrow1_rotationImplicit Trend Logs arrow1_rotationMeter Function

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.

For performance reasons and to make the trend log less sensitive to if an Automation server goes off line, it is recommended that you place trend logs as closely to the logged variable as possible. Preferably, on the Automation server where the logged variable is located. For example, if a sensor is connected to an Automation Server, the trend log that records the temperature should be placed on that Automation Server.

All trend log types can be configured to log meter consumption and handle meter replacement. Für weitere Informationen siehe Meter Function .

You can use extended trend logs to structure the log data and to store it where there is greater storage capacity. Für weitere Informationen siehe Extended Trend Logs .

When you create a trend log, the wizard helps you create and set up an extended trend log, a trend log list, and a trend chart as well as the chosen trend log type. Für weitere Informationen siehe Trends Overview .

 
action_zoom_plus_stroke Trend wizard flow chart
Abbildung: Trend wizard flow chart

You can manually add records to any type of trend log.

Change of Value Trend Logs

​The change of value trend log records the variable each time the difference between the current value and the last log value exceeds the delta. Use the change of value trend log to, for example, record a variable that has an unequal oscillation.

Für weitere Informationen siehe Change of Value Trend Logs .

Interval Trend Logs

​The interval trend log collects data at a specific time interval. Each logged value is stored as a record in the trend log. Use this trend log when the logging interval is less than 1 hour.

Für weitere Informationen siehe Interval Trend Logs .

Log Processing Trend Log

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.

Für weitere Informationen siehe Log Processing Trend Log .

Manual Trend Logs

​The manual trend log records data that you manually enter. The manual trend log does not log a variable. Use this type of trend log when values from offline devices have to be manually registered to the trend log. For example, if you want to create a trend log that monitors an electricity meter that cannot be connected to the EcoStruxure BMS.

Für weitere Informationen siehe Manual Trend Logs .

Variable Triggered Trend Logs

​The variable triggered trend log records the variable when the conditions of the associated trigger variable are met. Use this type of trend log when the log interval is scheduled to log monthly or yearly, or when another device is used to trigger the log.

Für weitere Informationen siehe Variable Triggered Trend Logs .

Implicit Trend Logs

​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.

Für weitere Informationen siehe Implicit Trend Logs .

Meter Function

​The meter function adds meter properties to any trend log type to seamlessly handle consumption calculations independent of meter rollover or meter exchange.

Für weitere Informationen siehe Meter Function .

  • Trends Overview
  • Change of Value Trend Logs
  • Interval Trend Logs
  • Log Processing Trend Log
  • Manual Trend Logs
  • Variable Triggered Trend Logs
  • Implicit Trend Logs
  • Meter Function
  • Add Trend Log Record Dialog Box
  • Extended Trend Logs
  • Trend Charts
  • Trend Log Lists
  • Multi Trend Log Lists