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AVEVA™ Simulation for Foxboro Control

SCP Engine Configuration Parameters

  • Last UpdatedApr 20, 2020
  • 2 minute read

Configure the SCPEngine through the Simulation Configuration dialog box. In the Simulation Configuration dialog box, select the required SCPEngine instance and click the Edit button. The Engine Configuration dialog box appears (next page).

In the Engine Configuration dialog box, set the following options:

Option

Description

Default value

Directory path for initial condition (IC) files

The directory where SCP Engine stores the IC files

‘.’: SCP Engine stores the IC files in the simulation directory

Directory path for backtrack files

The directory where SCP Engine stores backtrack files

‘..’: SCP Engine stores backtrack files in the general SimSci\Simulations directory

Set XREF update period to minimum BPC (Yes/No)

This controls the cross-referencing update period for this engine.

The default uses the maximum BPC of all connected SCPs (or 1 second if the maximum BPC exceeds 1 second).

Select Yes to use the minimum BPC of all connected SCPs.

No

Path to Scenario watch point file

The directory where SCP Engine looks for the scenario watch point file.

’.’: The simulation directory.

Scenario watch point file

The name of the scenario watch point file.

See section - SCP Engine Scenario Watch Point File

scpeng.sce

Print debug statements (Yes/No)

Select Yes to display debug statements in the SCP Engine console window while the engine is running.

No

Debug Level (0,1,2,3)

The Debug option and level statements are typically used only when necessary to provide additional information to Tech Support.

1

FAIM input file

Optional file defining additional FAIM points to be added to the SCP Engine.

BLANK

Disable Automatic malfunction generation option (1=yes)

When enabled (0) this creates a malfunctions output file named "SCPEngine_Malfunctions.xml".

See section - SCP Engine Malfunction Tools.

1

Option

Description

Default value

Timeout option for HB thread (milliseconds)

Maximum wait time for the SCP Engine to receive a response from SCPs. If the engine does not receive a response from any SCP within this time period, it will display an error message and stop waiting. The engine will need to be shut down and restarted to continue.

60000

Number of publishing rounds to find SCPs

While starting, the SCP Engine will attempt to discover running, simulation ready SCPs. This attempt is called a publishing round.

Maximum number of rounds = 6

Minimum number of rounds = 1

After the specified number of publishing rounds are complete, the engine will no longer attempt to discover SCPs.

3

Perform OM Reset(s) after loading snapshot (Yes/No)

If set to Yes, the peer-to-peer connections of all active SCPs are rebuilt on an IC restore (i.e., the SCPResetOM Tool runs automatically on completion of an IC restore).

The message "Building Peer-to-Peer Connections" appears in the SCP Engine console window when this occurs. In a multi-box setup with more than one SCP station, this message appears in the SCP Engine console window on all stations running an SCP Engine.

Yes

XREF Transfer Tolerance (fraction of Value)

Factor by which a cross-referenced point value must change in order for cross-referencing to occur.

Cross-referencing will not occur for a point whose value changes by less that this factor during the cross-reference update period.

0.0001

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