A History Export Manager view is available (only) on a NiagaraStation’s Histories extension, apart from “database device” components in some RdbmsNetwork drivers (see the Rdbms Driver Guide for details).

If using the Bacnet driver, Niagara histories in the local station can also be “exposed” to all networked BACnet devices as BACnet “Trend Log objects”. However, this is done using a different view under the Local Device component in the BacnetNetwork. See the BACnet Guide for more details.

Like other managers, the Niagara History Export Manager is a table-based view (Figure 107).

Each row typically represents a history export descriptor. Each descriptor specifies how data from a local history is exported (“pushed”) from the station to a selected NiagaraStation, where it appears as a history.

A “New Folder” button is available in this view for adding “archive folders”, to help organize history export (or import) descriptors. Each folder has its own history manager views.

You use this view to create, edit, and delete history export descriptors. Each export descriptor you add results in the creation of a Niagara history on that remote station.

Following station configuration, this view provides a status summary for exporting local histories. You can also use it to issue manual “Archive” commands to one or more history descriptors. This causes an export “push” of history data into the selected histories at the remote Niagara station.

Only history export descriptors appear in the History Export Manager view—any other components that may also reside under Histories do not appear. For example, you do not see the default “Retry Trigger” component (see About the Retry Trigger), or history import descriptors. However, you can use the Histories property sheet or the Nav tree to access these items.The “capacity” and “fullPolicy” configuration for each “exported” history (as created on the remote station), is determined by that target station’s NiagaraNetwork component’s “History Policies.” Before exporting any histories, you should review and adjust these policies as needed. For more details, see History Policies.

At the bottom of the view, the button “New” lets you manually create new export descriptors in the station. An “Edit” button lets you edit one or more export descriptors. Buttons “Discover,” “Add” and “Match” are also available, (these work similarly as in the Point Manager). An “Archive” button is available to manually export (push data) into one or more selected histories.

For more details, see: