Configures when the time period starts and ends.

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false indicates the log is no longer active because the current time is outside the Active Period.

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.

Specifies the name of the trend log using a BFormat string.

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.

Stores a copy of the most recent record successfully appended to the history for this extension.

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.

Selects 32 bit or 64 bit options for the history data logging. The 64 bit option allows for higher level of precision but consumes more memory.

Defines the starting point for calculations for cumulative logging after a rollover. Rollover occurs after a running total maximum value is reached. Select the null option if a Min Rollover Value is unknown.

Defines a maximum value for calculations when a rollover is detected by the history logging process. Using this parameter and the Min Rollover Value parameter helps you avoid getting negative numbers when you are logging total data, such as energy usage.

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.

Specifies a number in the Recipient List for the station. This integer from the BACnet Notification Class object of the sending device, must match this ID in the Alarms device extension of the receiving device.