Revert to tag collections from a snapshot

Snapshots include tag collection data. The stored tag collection data includes the tag mapping information (Tag Name and Sim Variable) and the following data values from the Read/Write External Data window:

• Quality

• Tag Value

• Screened Value

• Last Good Value

• Min

• Max

• Tag Time Stamp

When you revert a simulation to a snapshot, the tag collection data is included in the revert by default. If you do not want to overwrite the current tag collection data, you can use the Special list in the Snapshot Manager to remove the external tag data from the revert. See Specified snapshot values for more information.

The Sim Value and Sim Units values are always taken directly from the current values of the simulation and are not included in the snapshot data. However, you may see these values changed based on the variable values captured in the snapshot.

Snapshots do not include data for the data clipping and screening options (If Under Min, If Over Max, and If Bad Quality). These values remain the same when you revert a simulation to a snapshot.

Revert to tag collections from a snapshot

1. Open the Snapshot Manager.

2. Select the snapshot that contains the tag collection data that you want to load.

3. Select Revert.

   The tag collection data in the snapshot overwrites the current tag collection data in the simulation.

4. Open the External Data Manager.

5. Select a tag collection, and then select Transfer to open the Read/Write External Data window.

6. Verify that the tag collection data is correct and update the data if needed.

   If you need to update the tag mapping configuration, see Manage a tag collection for more information.

7. Repeat steps 5 and 6 for each tag collection that you are interested in.