History extensions
Figure 28. History extensions in
The following properties apply to history extensions.
Figure 29. History extensions in the Property Sheet view
| Property | Value | Description |
|---|---|---|
| Status | read-only | Indicates the condition of the network, device or component at the last check.
|
| Fault Cause | read-only | Indicates the reason why a system object (network, device, component, extension, etc.) is not working properly (in fault). This property is empty unless a fault exists. |
| Enabled | true or false |
Activates (true) and deactivates (false) the object (network, device, point, component, table, schedule, descriptor, etc.).
|
| Active Period | Days of the week: All (default), Time range: 12:00:00 AM to 12:00:00 AM (default) | Use to specify (via selectable check boxes) the days of the week as well as start and end times (via configurable properties hours:minutes:seconds) for data collection. |
| Active | true (default) or false
|
Read only value that indicates whether or not the data collection is active (as defined by the Active Period properties.
|
| History Name | A history format default string, %parent.name% (default) |
Uses a formatting convention to consistently name histories using a standardized formatting pattern. The format %parent.name% is the default history name format. This string automatically names any histories with the name of the parent component and appends a sequential number to additional names, as necessary. |
| HistoryConfig | Container for sub-properties used to configure the attributes of the history record stored in the History space. | |
| Last Record | Container for read only values for sub properties that describes the attributes of the last recorded change: date/time the last record was made, time zone, and the operation that generated the record, and the user who made the change. | |
| Change Tolerance | text | Specifies the minimum change in value before a record will be written. |
| Precision | 32 bit (default), 64 bit | Allows you to select 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. |
| Min Rollover Value | null or read only | Specifies the minimum value for this logged point if applicable. Used as a reference when reporting delta log values. |
| Max Rollover Value | null or read only | Specifies the maximum value for this logged point if applicable. Used as a reference when reporting delta log values. |