niagaraDriver-NiagaraSystemHistoryExport
This component defines the system tags text patterns used to export local histories into the target NiagaraStation. NiagaraSystemHistoryExport descriptors reside under the Histories extension of the NiagaraStation in the NiagaraNetwork.
System history export descriptors configure the system tags properties of local history extensions instead of unique history IDs.
Figure 72. NiagaraSystemHistoryExport properties
Before you can view these properties you must have already created a system history export descriptor. To view these properties, expand , right-click Histories and click and double-click the system history export row in the table.
In addition to the standard properties (Status, Enabled and Fault Cause), these properties support this component.
| Property | Value | Description |
|---|---|---|
| State | read-only | Reports the current state of the data transfer as: Idle, Pending or In Progress.
|
| Execution Time | additional properties | Configures a time trigger that controls when to perform the function.
Trigger properties are documented in the Getting Started with Niagara guide. |
| Last Attempt | read-only | Reports the date and time of the last attempted execution. |
| Last Success | read-only | Reports the date and time of the last successful execution. |
| Last Failure | read-only | Reports the date and time of the last execution failure. |
| System Tag Patterns | text | Specifies one or more text strings matched against text values in the System Tags properties of a local history extensions, where matching text patterns result in histories exported into the remote history space. |