Add/Edit Niagara History Import
This window configures a history import descriptor.
To open this window, expand , double-click Histories, click New or select a descriptor and click Edit.
In addition to the standard property, Enabled, these properties support import descriptors.
| Property | Value | Description |
|---|---|---|
| Name | text | Provides a name for the object.
Editing this property is equivalent to the right-clicking Rename command on the component. In this case, the object is a history import descriptor. |
| History Id | text in two parts: station name/history name | Together the two names identify
the CSV file to import from the local Supervisor PC. |
| Execution Time | drop-down list (defaults to Daily) | Selects when
to import or export descriptors that a join creates automatically
on demand. Daily opens additional properties to configure time of day and day of the week. Manual configures execution to take place on demand. Interval configures execution to take place on a regular basis. |
| Capacity | drop-down list (defaults to Unlimited) | Defines the maximum number of
history records allowed in the associated table. Unlimited enforces no limitation on the number of records. Record Count opens an additional property for defining the table limit. |
| Full Policy | drop-down list (defaults to Roll) | Defines what should happen
if Capacity is set to Record Count and the specified record count is reached. Roll overwrites the oldest records with the newest ones. This ensures that the latest data are recorded. Stop terminates recording when the number of stored records reaches the specified capacity. Full policy has no effect if Capacity is Unlimited. |
| On Demand Poll Enabled | true (default) or false | Enables and disables polling. true enables a system user to use the Live Updates (play) button in History views to poll for live data for the associated imported history(ies). false renders this button unavailable in history views for the associated imported history(ies). |
| On Demand Poll Frequency | drop-down list | References the On Demand Poll Scheduler rates under the NiagaraNetwork’s History Policies container slot. |
| System tags | n/a | Cannot be edited. |