Initial store-forward state

The following edge case also presents a problem: if the Wonderware connector is stopped and restarted and the Wonderware historian contains tags that are backfilling store-forward data, but the store-forward markers are no longer present (Connection Loss (10)) then the connector will gather values for a query period that has incomplete data. This may result in the loss of some data that appears in the Wonderware historian, but is not transferred to the PI Data Archive. To handle this edge case the Wonderware connector assumes all data is in store-forward after data collection is started.

Although this is not a perfect solution it will mitigate the potential mismatch between data found in the Wonderware Historian and the PI Data Archive for this particular edge case.