Model {
  Name			  "PHLOOP"
  Version		  3.00
  SimParamPage		  "Solver"
  SampleTimeColors	  off
  InvariantConstants	  off
  WideVectorLines	  off
  ShowLineWidths	  off
  ShowPortDataTypes	  off
  StartTime		  "0.0"
  StopTime		  "10"
  SolverMode		  "SingleTasking"
  Solver		  "ode45"
  RelTol		  "1e-3"
  AbsTol		  "1e-3"
  Refine		  "1"
  MaxStep		  "0.010"
  InitialStep		  "auto"
  FixedStep		  "auto"
  MaxOrder		  5
  OutputOption		  "RefineOutputTimes"
  OutputTimes		  "[]"
  LoadExternalInput	  off
  ExternalInput		  "[t, u]"
  SaveTime		  on
  TimeSaveName		  "t"
  SaveState		  off
  StateSaveName		  "xout"
  SaveOutput		  off
  OutputSaveName	  "yout"
  LoadInitialState	  off
  InitialState		  "xInitial"
  SaveFinalState	  off
  FinalStateName	  "xFinal"
  SaveFormat		  "Matrix"
  LimitMaxRows		  off
  MaxRows		  "1000"
  Decimation		  "1"
  AlgebraicLoopMsg	  "warning"
  MinStepSizeMsg	  "warning"
  UnconnectedInputMsg	  "warning"
  UnconnectedOutputMsg	  "warning"
  UnconnectedLineMsg	  "warning"
  InheritedTsInSrcMsg	  "warning"
  IntegerOverflowMsg	  "warning"
  UnnecessaryDatatypeConvMsg "none"
  Int32ToFloatConvMsg	  "warning"
  SignalLabelMismatchMsg  "none"
  ConsistencyChecking	  "off"
  ZeroCross		  on
  SimulationMode	  "normal"
  BlockDataTips		  on
  BlockParametersDataTip  on
  BlockAttributesDataTip  off
  BlockPortWidthsDataTip  off
  BlockDescriptionStringDataTip	off
  BlockMaskParametersDataTip off
  ToolBar		  on
  StatusBar		  on
  BrowserShowLibraryLinks off
  BrowserLookUnderMasks	  off
  OptimizeBlockIOStorage  on
  BufferReuse		  on
  BooleanDataType	  off
  RTWSystemTargetFile	  "grt.tlc"
  RTWInlineParameters	  off
  RTWRetainRTWFile	  off
  RTWTemplateMakefile	  "grt_default_tmf"
  RTWMakeCommand	  "make_rtw"
  RTWGenerateCodeOnly	  off
  ExtModeMexFile	  "ext_comm"
  ExtModeBatchMode	  off
  ExtModeTrigType	  "manual"
  ExtModeTrigMode	  "oneshot"
  ExtModeTrigPort	  "1"
  ExtModeTrigElement	  "any"
  ExtModeTrigDuration	  1000
  ExtModeTrigHoldOff	  0
  ExtModeTrigDelay	  0
  ExtModeTrigDirection	  "rising"
  ExtModeTrigLevel	  0
  ExtModeArchiveMode	  "off"
  ExtModeAutoIncOneShot	  off
  ExtModeIncDirWhenArm	  off
  ExtModeAddSuffixToVar	  off
  ExtModeWriteAllDataToWs off
  ExtModeArmWhenConnect	  off
  Created		  "Tue Jan 18 20:40:19 2000"
  UpdateHistory		  "UpdateHistoryNever"
  ModifiedByFormat	  "%<Auto>"
  ModifiedDateFormat	  "%<Auto>"
  LastModifiedDate	  "Tue Jan 18 20:43:31 2000"
  ModelVersionFormat	  "1.%<AutoIncrement:2>"
  ConfigurationManager	  "none"
  BlockDefaults {
    Orientation		    "right"
    ForegroundColor	    "black"
    BackgroundColor	    "white"
    DropShadow		    off
    NamePlacement	    "normal"
    FontName		    "Helvetica"
    FontSize		    10
    FontWeight		    "normal"
    FontAngle		    "normal"
    ShowName		    on
  }
  AnnotationDefaults {
    HorizontalAlignment	    "center"
    VerticalAlignment	    "middle"
    ForegroundColor	    "black"
    BackgroundColor	    "white"
    DropShadow		    off
    FontName		    "Helvetica"
    FontSize		    10
    FontWeight		    "normal"
    FontAngle		    "normal"
  }
  LineDefaults {
    FontName		    "Helvetica"
    FontSize		    9
    FontWeight		    "normal"
    FontAngle		    "normal"
  }
  System {
    Name		    "PHLOOP"
    Location		    [2, 72, 785, 552]
    Open		    on
    ModelBrowserVisibility  off
    ModelBrowserWidth	    200
    ScreenColor		    "white"
    PaperOrientation	    "landscape"
    PaperPositionMode	    "auto"
    PaperType		    "usletter"
    PaperUnits		    "inches"
    ZoomFactor		    "100"
    AutoZoom		    on
    ReportName		    "simulink-default.rpt"
    Block {
      BlockType		      Step
      Name		      "Dist"
      Position		      [330, 71, 355, 99]
      BackgroundColor	      "cyan"
      DropShadow	      on
      FontName		      "Arial"
      FontSize		      14
      Time		      "5000"
      Before		      "0"
      After		      "0.000"
      SampleTime	      "0"
    }
    Block {
      BlockType		      SubSystem
      Name		      "Model"
      Ports		      [1, 3, 0, 0, 0]
      Position		      [325, 291, 410, 429]
      ForegroundColor	      "red"
      DropShadow	      on
      ShowName		      off
      FontName		      "Arial"
      FontSize		      14
      ShowPortLabels	      off
      MaskType		      "pH model"
      MaskDescription	      "pH plant "
      MaskPromptString	      " Tank volume V:| Inlet stream conc. ci:|control"
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      MaskStyleString	      "edit,edit,edit,edit,edit"
      MaskTunableValueString  "on,on,on,on,on"
      MaskCallbackString      "||||"
      MaskEnableString	      "on,on,on,on,on"
      MaskVisibilityString    "on,on,on,on,on"
      MaskInitialization      "V=@1;ci=@2;cu=@3;q=@4; alpha=@5;"
      MaskDisplay	      "disp('pH model')"
      MaskIconFrame	      on
      MaskIconOpaque	      on
      MaskIconRotate	      "none"
      MaskIconUnits	      "autoscale"
      MaskValueString	      "V|ci|cu|q|alpha"
      System {
	Name			"Model"
	Location		[5, 67, 809, 564]
	Open			off
	ModelBrowserVisibility	off
	ModelBrowserWidth	200
	ScreenColor		"white"
	PaperOrientation	"landscape"
	PaperPositionMode	"auto"
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	PaperUnits		"inches"
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	AutoZoom		on
	Block {
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	  Position		  [20, 220, 40, 240]
	  BackgroundColor	  "lightBlue"
	  DropShadow		  on
	  FontName		  "Arial"
	  FontSize		  14
	  Port			  "1"
	  PortWidth		  "-1"
	  SampleTime		  "-1"
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	  SignalType		  "auto"
	  Interpolate		  on
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	Block {
	  BlockType		  Fcn
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	  BackgroundColor	  "yellow"
	  DropShadow		  on
	  ShowName		  off
	  FontName		  "Arial"
	  FontSize		  14
	  Expr			  "u[2]*(cu-u[1])/V +q*(ci-u[1])/V"
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	Block {
	  BlockType		  Fcn
	  Name			  "Fcn1"
	  Position		  [240, 268, 370, 312]
	  BackgroundColor	  "yellow"
	  DropShadow		  on
	  ShowName		  off
	  FontName		  "Arial"
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	Block {
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	  DropShadow		  on
	  ShowName		  off
	  FontName		  "Arial"
	  FontSize		  14
	  Expr			  "-log10(sqrt(10^(-14)+0.25*(u[1])*(u[1]))+0."
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	Block {
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	  Position		  [545, 127, 585, 173]
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	  ShowName		  off
	  FontName		  "Arial"
	  FontSize		  14
	  ExternalReset		  "none"
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	  InitialCondition	  "ci"
	  LimitOutput		  off
	  UpperSaturationLimit	  "inf"
	  LowerSaturationLimit	  "-inf"
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	Block {
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	  InitialCondition	  "-log10(sqrt(10^(-14)+0.25*(ci)*(ci))+0.5*ci"
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	  LimitOutput		  off
	  UpperSaturationLimit	  "inf"
	  LowerSaturationLimit	  "-inf"
	  ShowSaturationPort	  off
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	Block {
	  BlockType		  Mux
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	Block {
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	Block {
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	Block {
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	  FontSize		  14
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	  SrcPort		  1
	  Points		  [40, 0; 0, -55]
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	}
	Line {
	  SrcBlock		  "Integrator"
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	  Points		  [20, 0]
	  Branch {
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	    DstPort		    1
	  }
	  Branch {
	    Points		    [0, -75; -490, 0; 0, 40]
	    Branch {
	      Points		      [0, 10]
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	Line {
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	  }
	  Branch {
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	    DstBlock		    "Mux1"
	    DstPort		    2
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	Line {
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	  SrcPort		  1
	  Points		  [40, 0]
	  Branch {
	    DstBlock		    "out_2"
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	  }
	  Branch {
	    Points		    [0, -70; -335, 0; 0, 45]
	    DstBlock		    "Mux1"
	    DstPort		    1
	  }
	}
	Line {
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	  SrcPort		  1
	  DstBlock		  "Integrator1"
	  DstPort		  1
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	Line {
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	  SrcPort		  1
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	Line {
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	Line {
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	Annotation {
	  Position		  [637, 263]
	  VerticalAlignment	  "top"
	  BackgroundColor	  "green"
	  Text			  "pm_hat"
	  FontName		  "Arial"
	  FontSize		  14
	}
	Annotation {
	  Position		  [642, 373]
	  VerticalAlignment	  "top"
	  BackgroundColor	  "green"
	  Text			  "po_hat"
	  FontName		  "Arial"
	  FontSize		  14
	}
	Annotation {
	  Position		  [642, 163]
	  VerticalAlignment	  "top"
	  BackgroundColor	  "green"
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	  FontName		  "Arial"
	  FontSize		  14
	}
	Annotation {
	  Position		  [67, 202]
	  VerticalAlignment	  "top"
	  BackgroundColor	  "lightBlue"
	  Text			  "u"
	  FontName		  "Arial"
	  FontSize		  14
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    }
    Block {
      BlockType		      SubSystem
      Name		      "Non linear\n controller"
      Ports		      [1, 1, 0, 0, 0]
      Position		      [155, 116, 270, 194]
      ForegroundColor	      "red"
      DropShadow	      on
      FontName		      "Arial"
      FontSize		      14
      ShowPortLabels	      off
      MaskType		      "Controller"
      MaskDescription	      "Controller"
      MaskPromptString	      "tank volume V:|inlet stream conc. ci:|control  "
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      MaskIconOpaque	      on
      MaskIconRotate	      "none"
      MaskIconUnits	      "autoscale"
      MaskValueString	      "V|ci|cu|q|alpha|beta"
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	Name			"Non linear\n controller"
	Location		[38, 131, 752, 559]
	Open			off
	ModelBrowserVisibility	off
	ModelBrowserWidth	200
	ScreenColor		"white"
	PaperOrientation	"landscape"
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	PaperUnits		"inches"
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	Block {
	  BlockType		  Inport
	  Name			  "in_1"
	  Position		  [15, 25, 35, 45]
	  ForegroundColor	  "blue"
	  DropShadow		  on
	  FontName		  "Arial"
	  FontSize		  14
	  Port			  "1"
	  PortWidth		  "-1"
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	Block {
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	  ForegroundColor	  "red"
	  DropShadow		  on
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	  FontName		  "Arial"
	  FontSize		  14
	  Expr			  "q*(ci-u[2])/(u[2]-cu)+V*log(10)*sqrt((u[2]^"
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	  MaskIconUnits		  "autoscale"
	  System {
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	    Location		    [-14, 122, 790, 603]
	    Open		    off
	    ModelBrowserVisibility  off
	    ModelBrowserWidth	    200
	    ScreenColor		    "white"
	    PaperOrientation	    "landscape"
	    PaperPositionMode	    "auto"
	    PaperType		    "usletter"
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	    ZoomFactor		    "100"
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	      FontSize		      12
	      FontWeight	      "bold"
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	    Block {
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	      BackgroundColor	      "yellow"
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	      FontName		      "Arial"
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	    Block {
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	      BackgroundColor	      "yellow"
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	      BackgroundColor	      "yellow"
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	      FontName		      "Arial"
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	      LimitOutput	      off
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