Concepto
Trend Log Lists
The trend log list numerically displays the records of a trend log or an extended trend log. The records of the trend log can be processed by a calculation method before they are presented in the trend log list.
The trend log list can only display one trend log at a time and must be manually refreshed to display recently recorded values.
You can manually add records to a trend log list for any type of trend log.
Time Zone Modes in a Trend Log List
In a trend log list, you can present the records of a trend log in different time zones: local time zone, EcoStruxure BMS server time zone, and UTC time zone.
Para obtener más información, consulte Time Zone Modes in a Trend Log List .
Calculation Methods
Use a calculation method to process the records of the trend log before presenting them in a trend log list or a trend chart. The original records in the trend log are not affected by the calculation method. The calculation method is applied to the trend log records grouped by a specific time interval.
Para obtener más información, consulte Métodos de cálculo .
Period Timestamps in Trend Charts and Trend Log Lists
When a calculated value for a period is presented, the middle of the period is used as the timestamp.
Example:
The calculated value for the period 8:00-9:00 is stamped 8:30. If there is a value at 9:01, the next period is 9:00-10:00, which is stamped as 9:30. The full period may not have passed yet, but the value can be presented even if parts of the period are in the future.
Temporary Trend Log Lists
To display a trend log without creating a new trend log list or trend chart, the trend log can be displayed in a temporary list or chart.
Para obtener más información, consulte Temporary Trend Log Lists .
Floating Point Values NaN, INF, and -INF
In the EcoStruxure Building Operation software, the floating point values “Not a Number”, positive infinity, or negative infinity may be displayed in the Basic property tab, in a trend log list, or a trend chart.
Para obtener más información, consulte Floating Point Values NaN, INF, and –INF .
Time Zone Modes in a Trend Log List
Métodos de cálculo
Temporary Trend Log Lists
Floating Point Values NaN, INF, and –INF
Trends Overview
Trend Log List Properties
Creating a Trend Log List
Configuring a Trend Log List
Cómo editar o comentar una entrada de registro de tendencias
Actualización de una lista de registro de tendencias
Cómo guardar la configuración de una lista de registro de tendencias
Apertura de una lista de registro de tendencias
Cómo ver un registro de tendencias en una lista de registro de tendencias temporales
Trend Log List View