Cloud History Export (nCloudDriver-CloudHistoryExport)

This component defines the export parameters for a local history, including “last sent to cloud time”, current status, and remote history Id. NiagaraHistoryExports reside under the History extension of the NiagaraStation in the NiagaraNetwork.

Cloud history exports that are added through the Learn Histories job will have their “last sent to cloud time” set. The time that is used is based on the value entered in the learn job configuration window. When the configuration window comes up, by default the value for this time is populated with "now". If the user does not change this value the exports will be created with a “last sent to cloud time” of “now”. This is because there is no way of knowing anything about the station doing the export, so "now" is the earliest safe time that can be used. History exports added through Discover will not have a “last sent to cloud time” set. There is no constraint on the time (other than that it is stored internally as milliseconds since epoch). For example, you can set your history export to start exporting records at a future date/time, such as starting next week.

For more details, see nCloudDriver-CloudHistoryExportManager.

Figure 48.   CloudHistoryExport properties
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To access these properties, expand Config > Drivers > NiagaraCloudNetwork > CloudSentienceDevice > Histories, double-click Local_LogHistory (or any of the discovered history type).

In addition to the standard properties (Status, Enabled, Fault Cause and State), these properties support this component.

Property Value Description
Last Attempt Timestamp
Reports the date and time of the last attempted execution.
Last Success Timestamp
Reports the last time the station successfully performed this function.
Last Failure Timestamp
Reports the last time the system failed to perform this function. Refer to Fault Cause for details.
History Id text in two parts: /stationname/historyname
Specifies the history name in the local station’s History space, using two parts: “/<stationName>” and “/<historyName>”. If Discovered, station name is “^” (a character representing the device name of the parent container) and history name reflects the source history name. Typically, you leave both properties at default values, or edit the second (<historyName>) property only.
Point Id text
Specifies an ID for the point.
Source Ord File chooser Chooses the files for the ORD.
Last Sent To Cloud timestamp
Reports the last history record sent to the cloud. This value is always present. It determines where in the local Niagara history to start from when sending history records to the cloud during batch or individual history data export.