Set model variables to the screened tag values

When you read or screen tag values from an external database, AVEVA Process Simulation does not apply the tag values to the associated model variables until you specifically decide to set those model variables to the screened tag values.

The software always uses the Screened Value data instead of the direct Tag Value data to avoid updating the model variables to tag values of bad quality. If there is no Screened Value data available for a model variable, the software does not update the value of that model variable when you set the model variables to the screened tag values.

Set model variables to the screened tag values

1. Open the External Data Manager.

2. Select the tag collection that contains the tag values that you want to apply to the model variables, and then select Transfer.

   The Read/Write External Data window appears.

3. In the Tag List section, in the Input Processing area, select Set.

   AVEVA Process Simulation updates the values for all the associated model variables. For specified model variables, it sets the values to the current Screened Value data in the External Data Manager. For calculated model variables, it recalculates the values based on the new specifications.