Plant Model 9.3 - FlwSolve

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Navigation: View Commands Summary 9.3 -> Plant Model 9.3 -> Plant Model - FlwSolve

FlwSolve Tab Settings Tab Project Tab RC Tab Species Tab Views Tab Soluble Tab WaterQuality Tab
Qualities Tab Environment Tab System Tab Flowsheets Tab Status Tab Statistics Tab States Tab Globals Tab

This page is for SysCAD 9.3 Build 136 only. For SysCAD 9.3 Build 137 or later, please see Plant Model - FlwSolve.


Introduction

This tab page on the Plant Model Access Window has a number of parameters that the user may either set or read regarding the SysCAD Solver.

Tag (Long/Short) Input / Calc Description/Calculated Variables / Options
Common Data on First Tab Page

Spills & Vents

(spills and venting are only relevant in dynamic mode)

Spill.Report Off Spill messages are off
On-Messages Any spills will be reported in the messages portion of the message window.
On-Conditions Any spills will be reported in the conditions portion of the message window.
On-Both Any spills will be reported in the both the messages and conditions portions of the message window.
Vent.Report Off Venting messages are off
On-Messages Any venting will be reported in the messages portion of the message window
On-Conditions Any venting will be reported in the conditions portion of the message window
On-Both Any venting will be reported in the both the messages and conditions portions of the message window
Spill.Action Ignore No action will occur if a spill occurs
Idle-Units If a spill occurs from a unit, then the model will pause (goto Idle mode)
Idle-Links If a spill occurs from a link, then the model will pause (goto Idle mode)
Idle-Both If a spill occurs from either a unit or a link, then the model will pause (goto Idle mode)
Stop-Units If a spill occurs from a unit, then the model will stop
Stop-Links If a spill occurs from a link, then the model will stop
Stop-Both If a spill occurs from either a unit or a link, then the model will stop
Vent.Action Ignore No action will occur if venting occurs
Idle-Units If venting occurs from a unit, then the model will pause (goto Idle mode)
Idle-Links If venting occurs from a link, then the model will pause (goto Idle mode)
Idle-Both If venting occurs from either a unit or a link, then the model will pause (goto Idle mode)
Stop-Units If venting occurs from a unit, then the model will stop
Stop-Links If venting occurs from a link, then the model will stop
Stop-Both If venting occurs from either a unit or a link, then the model will stop
Spill.Threshold Input The mass flow threshold for defining a spill
Vent.Threshold Input The mass flow threshold for defining venting

Evaluation Order

TraceChanges Tickbox

Demand Configuration

Please see Demand for more information on this functionality.

BlockInTears Tickbox This will block demand logic through all tear streams in a project.
ShowDemandAvail Tickbox If this is enabled then the user will be able to view the mass available from a source in Demand mode both up and down stream in all pipes in the project.
DemandWarningTol.SigDigits Input Only available in Build 137 or later. The number of significant digits for the demand warning for relative tolerance (-log(DemandWarningTol.Rel)). This will adjust the tag below.
DemandWarningTol.Rel Input The relative tolerance used when testing to display condition warnings when a required demand flow is not being met.
DemandWarningTol.Abs Input Only available in Build 137 or later. The absolute tolerance used when testing to display condition warnings when a required demand flow is not being met.

Options

StopOnError List This allows SysCAD to be stopped when serious errors are present; to eliminate time used on solving a project that is not correctly configured. The options are Yes or No.
PGM_ExecuteTimeout Input If the execution of the logic in a controller takes a long time, this is the time after which execution is terminated. It is designed to prevent logic that causes an endless loop from freezing SysCAD. If a timeout error occurs you should review the PGM logic.
RandomSeedAtStart Input

Developer Testing Options

These options are designed for users of SMDK and Developer License where extra tests are performed on stream mixtures to test data sanity (eg test for negative masses of species). In normal use these options should be off so that SysCAD solver does not perform the extra unnecessary checks. The purpose is to help test that SMDK models are performing sensibly.

SanityChecks Off Testing of streams for bad data is not performed.
Messages Any errors or reported to message window.
Stop Any errors or reported to message window, and the solver is stopped at the end of that iteration.
Enthalpy.ForceTotalP Tickbox