Bacnet Enum Trend Log Ext (bacnet-BacnetEnumTrendLogExt)

This extension creates a history for the StatusEnum out value of a component using COV or a defined interval.

You can export the history created by this extension as a fully-compliant BACnet trend log object.

NOTE: This single extension applies to both COV and Interval data collection and may be used in place of the deprecated COV and Interval Trend Log Extensions for this data type.

Figure 89. Bacnet Enum Trend Log Ext properties

To access these properties, expand Config > Drivers > BacnetNetwork > BacnetDevice > Trend Logs > BacnetLogExtensions and double-click the BacnetEnumTrendLogExt.

In addition to the common properties (Status, Fault Cause and Enabled), this component has these properties.

Property	Value	Description
Active Period, Start Time	Date and Time selectors	Configures when to start the log.
Active Period, Stop Time	Date and Time selectors	Configures when to stop the log.
Active	read-only	Indicates the current state of the trend log based on the `Active Period`. `true` indicates the log is active. `false` indicates the log is no longer active because the current time is outside the `Active Period`.
History Name	BFormat string (defaults to %parent.name%)	Defines a pattern for deriving the name of the history created by this extension. It can be static text or a simple pattern that allows the actual history name to be derived from the context. The default value (%parent.name%) sets the history name in the Id to the name of the parent of this extension. Changes to this property cause the format to be reapplied and the history Id in the history config is to be updated.
History Config	additional properties	Serves as a container for sub-properties used to configure the attributes of the history record stored in the History space. A separate topic documents these properties.
Last record	read-only	Stores a copy of the most recent record successfully appended to the history for this extension.
Interval	hours, minutes, seconds	Controls data collection behavior for this Trend Log component. If the `Interval` value is set to 0, the driver collects trends when a change of value (COV) on the parent point occurs. The subscription lifetime is equal to twice (2x) the value of the COV Resubscription Interval property. If the `Interval` value is set to any number greater than 0, the driver collects trend data at the specified time interval.
Total Record Count	read-only	Indicates the total number of records collected by the Trend Log object since creation. When the value of Total Record Count reaches its maximum possible value, the next value it takes is zero.

Bacnet Enum Trend Log Ext (bacnet-BacnetEnumTrendLogExt)

Figure 89. Bacnet Enum Trend Log Ext properties

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