Solver Setting - Method

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	SS Only	Dynamic Mode Only
FS_Solver	ProBal	Dynamic	Method	Scenario	Spills	Vents	SS Monitor	SS Finder	Convergence	GlobalTear	Tears	TearTags	Tolerances	Analysis	Changes

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This page is for Build 139 or later. For Build 138 or earlier, please see Solver Setting - Integration or Solver Setting - Network.

Tag (Long/Short)	Input / Calc	Description
Dynamic Solver Settings
RealTime.SyncClock	Tickbox
RealTime.On	Tickbox	SysCAD will solve the model at a speed relative to the time on your PC. If the RealTimeMultiplier is set to 1 (100%), then it will take 1 second of running time to simulate 1 second of real time.
RealTime.Multiplier	Input	Multiplier of time when using the RealTime option. If the RealTimeMulitplier is set to 2 (200%), then it will take 1 second of running time to simulate 2 seconds of real time.
StepSize	Input	The size (time) of each step. A higher value results in a faster relative speed, but generally a less accurate solution. The maximum step size that can be used is dependent on the dynamics of process (relative flow rates, volumes of units, timing of events, etc.). A single step can have multiple iterations to solve the flowsheet and associated controls, similar to solving a steady state project. The maximum number of iterations per step is set on the Tears tab .
StepSize.Min	Input	Minimum step size.
StepSize.Max	Input	Maximum step size.
Integration
Method	Input	The method used for the dynamic simulation can be changed here. Euler Runge-Kutta 2 Runge-Kutta 4
DerivEstInc	Input
Link Convergence
Link.RelTol	Input	The relative tolerance used when determining the estimated flows in a piping network.
Link.AbsTol	Input	The absolute tolerance used when determining the estimated flows in a piping network.
Network Convergence
Network.DeRating	Input
Network.MaxResRatio	Input
Network.CnvCount	Input
Network.ResRunAvgStart	Input
Network.ResRunAvgCount	Input
Network.UDFCnvCount	Input
Network.FastConverge	Tickbox
Flow Calculations
NetFlow.Vapour	Allow
	Force
	Block
NetFlow.Liquid	Allow
	Force
	Block
Mass Flow Differences
ShowQmDiffAs	Off
	Note
	Warning
	Error
QmMatchRel	Input
QmMatchAbs	Input
Options
KFactMult	Input