Associated with: Wonderware Historian database item.
Security permission required to access this pick action: Retrieve Data
Use the Refresh Status pick action to immediately update the status information received by the ClearSCADA Wonderware Historian driver from the Wonderware Historian server. The driver stores the status of the connection between HCAL and the Wonderware Historian server. It also stores the status of HCAL's store-and-forward engine (if used). The driver uses this status information to raise or clear alarms and log events. You can also view this information in the Status display (see Wonderware Historian Driver-Specific Status Display Attributes) or on a Mimic, List, or report.
The driver first sets this information when it uses HCAL to open a connection to the Wonderware Historian server. Thereafter, the driver polls HCAL every minute to get the connection and store-forward statuses. It then updates the ClearSCADA Wonderware Historian database item if either status has changed. It also raises or clears alarms and logs events if required.