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AVEVA™ Process Simulation

Specified snapshot values

  • Last UpdatedJan 31, 2025
  • 2 minute read

You can customize the snapshot values that are updated when you revert to a snapshot. The following figure shows the available snapshot value options.

The following table defines the available snapshot value options.

Option

Description

Variable Calculated Values (Revert and Reset)

This option determines whether the snapshot values for the calculated variables overwrite the current values in the simulation. If you select this option, the snapshot values overwrite the current values for all the calculated variables. This option applies when you revert or reset the simulation.

Variable Specified Values (Revert)

This option determines whether the snapshot values for the specified variables overwrite the current values in the simulation. If you select this option, the snapshot values overwrite the current values for all the specified variables. Note that the snapshot values for invariant variables do not overwrite the current values unless you also select the Invariant Values checkbox.

Invariant Values

This option determines whether the snapshot values for invariant parameters and variables overwrite the current values in the simulation. If you select this option, the snapshot values overwrite the current values for all parameters and variables that you specify as invariant.

Variable Specification Status (Revert)

This option determines whether the snapshot values for the variables' Specified status overwrite the current values in the simulation. If you select this option, the snapshot values overwrite the current values for the Specified status for all the variables.

Variable State Values

This option determines whether the snapshot values for the state variables overwrite the current values in the simulation. If you select this option, the snapshot values overwrite the current values for all the state variables. Note that a state variable is a variable whose value is calculated by the evaluation and integration of its time derivative.

You can set this option only in Dynamics mode.

Real Parameter Values

This option determines whether the snapshot values for the Real parameters overwrite the current values in the simulation. If you select this option, the snapshot values overwrite the current values for all the real parameters. Note that the snapshot values for invariant parameters do not overwrite the current values unless you also select the Invariant Values checkbox.

History Data

This option determines whether the snapshot values for the historical data that is stored in the Trends overwrites the current values in the simulation. If you select this option, the Trend data in the snapshot overwrites the current Trend data in the simulation.

You can set this option only in Dynamics mode.

External Tag Data

This option determines whether the external tag data in the snapshot overwrites the current values in the External Data Manager.

See Revert to tag collections from a snapshot for more information on the external tag data that is overwritten.

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