Solver Settings

Navigation: User Guide ➔ Menu Commands ➔ View ➔ Solver Settings

Project, Model and Solver Settings				Simulation Modes and Solver Setup			Solver Methodology, Convergence and Tolerance				Solving Models
Project Settings	Solver Settings	Plant Model	Constants	Simulation Modes	ProBal Setup	Dynamic Setup	Solver Status	Solver Methodology	Convergence Methods	Tolerance Testing	Evaluating Sub-Models	Flash Train	Mass & Energy Balance	Referenced Variables	Demand

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Command Button:
Command Path:	View - Solver Settings
Alternate Method:	Graphics Window right-click menu > View > Solver Settings

This opens the $Solver Access Window. The tab pages will change depending on if this is a Steady State (ProBal) or Dynamic project.

Steady State Solver Settings

For Steady State Projects, the following Tabs are available:

FS_Solver	ProBal	Convergence	GlobalTear	Tears	TearTags	Tolerances	Analysis

Brief Summary:

• FS_Solver Tab: For Threading and solver related command buttons.
• Probal Tab: For setting solver start actions and closure tolerances.
• Convergence: Displays the current convergence information.
• GlobalTear: For defining Global Tear convergence method, tolerance settings.
• Tears: Displays individual tear states, include current value and individual tear settings.
• TearTags: Displays a list of Tear tags, showing the associated unit models.
• TearStats: Displays individual tear counters and statistics.
• Tolerances: Displays the tolerances for system and model solvers.
• Analysis: For debugging purpose, used to narrow down problem areas of the project.

Dynamic Solver Settings

For Dynamic Projects, the following Tabs are available:

FS_Solver	Dynamic	Method	Scenario	Spills	Vents	SS Monitor	SS Finder	Convergence	GlobalTear	Tears	TearTags	Tolerances

Brief Summary:

• FS_Solver Tab: For Threading and solver related command buttons.
• Dynamic Tab: For simulation time information and Loading of a Historian tag list (for one trend page)
• Method: For setting step size, solver method, network convergence and tolerance settings.
• Scenario: For defining scenario, including run duration, start up options and so on.
• Spills: For capturing spillage during the simulation.
• Vents: For capturing gas venting from Tank (if a vent stream is not connected).
• SS Monitor: Mainly used for monitoring projects that are set to run to steady state. User can defined convergence criteria to determine if the project has reached steady state.
• SS Finder: User can set some criteria for the checking of Temperature, Pressure, Mass and MassFlow change in the project.
• Convergence: Displays the current convergence information.
• GlobalTear: For defining Global Tear convergence method, tolerance settings.
• Tears: Displays individual tear states, include current value and individual tear settings.
• TearTags: Displays a list of Tear tags, showing the associated unit models.
• TearStats: Displays individual tear counters and statistics.
• Tolerances: Displays the tolerances for system and model solvers.