This driver is a stand-alone driver. It provides additional functionality to enable ClearSCADA to interface with specific supported systems or devices. To interact successfully with such systems or devices, you need to:
- Install and run the driver
- Ensure that the driver is licensed
- Configure the required database items and settings on the driver
- Ensure that the database items (and any database items on which they depend) have valid, saved, configuration and are 'In Service'.
The Wonderware eDNA Historian driver enables you to export ClearSCADA historic data to a Wonderware eDNA Historian server.
When you have installed the driver, you can then configure a ClearSCADA point or accumulator so that ClearSCADA can export its data to a Wonderware eDNA Historian. ClearSCADA will automatically start exporting new data for an enabled point or accumulator to the Historian. It does this by using an API called eDNALinkMx.
ClearSCADA sends historic data to eDNALinkMx, which then manages its onward transmission to the Wonderware eDNA Historian. ClearSCADA exports historic data at the same time as it stores the data in the ClearSCADA database. It only exports newly created historic data. It will not export data that was created before you place the Wonderware eDNA Historian database item 'in service'. ClearSCADA will not export data that it did not store due to historic compression or filtering (see Historic Data Compression in the ClearSCADA Guide to Core Point Configuration). eDNALinkMx applies no further filtering.
eDNALinkMx can store exported historic data in a cache. This is useful if the network connection to the Wonderware eDNA Historian is intermittent or unavailable. In such a situation, eDNALinkMx will cache the export data and when the link becomes available again, it will send it to the Wonderware eDNA Historian. For more information about eDNALinkMx, see the Wonderware eDNA Historian documentation.
For each enabled point or accumulator, ClearSCADA uses eDNALinkMx to create a new Object ID in the Wonderware eDNA Historian. It does this when it exports the first data to the Historian.
To export historic data to a Wonderware eDNA Historian, follow this procedure:
- Install the Wonderware eDNA Historian Driver.
- Configure the Wonderware eDNA Historian Server Setting to set up the cache.
- Add a Wonderware eDNA Historian Database Item to the ClearSCADA database. This item holds the Wonderware eDNA Historian export settings.
- Configure a Wonderware eDNA Historian Database Item.
- Place the Wonderware eDNA Historian database item In Service.
- Configure the Historic details for each point or accumulator for which you want to export historic data (see Defining Historic Details for a Point in the ClearSCADA Guide to Core Point Configuration).