Using Simulink Getting Started To the Reader What Is Simulink? How to Use This Manual Related Products Quick Start Running a Demo Model Description of the Demo Some Things to Try What This Demo Illustrates Other Useful Demos Building a Simple Model Setting Simulink Preferences Simulink Preferences How Simulink Works What Is Simulink Modeling Dynamic Systems Block Diagrams Blocks States System Functions Block Parameters Continuous Versus Discrete Blocks Subsystems Custom Blocks Signals Data Types Solvers Simulating Dynamic Systems Model Initialization Phase Model Execution Phase Processing at Each Time Step Determining Block Update Order Atomic Versus Virtual Subsystems Solvers Zero Crossing Detection Algebraic Loops Modeling and Simulating Discrete Systems Discrete Blocks Sample Time Purely Discrete Systems Multirate Systems Determining Step Size for Discrete Systems Sample Time Propagation Invariant Constants Mixed Continuous and Discrete Systems Creating a Model Starting Simulink Creating a New Model Editing an Existing Model Entering Simulink Commands Simulink Windows Selecting Objects Selecting One Object Selecting More than One Object Blocks Block Data Tips Virtual Blocks Copying and Moving Blocks from One Window to Another Moving Blocks in a Model Copying Blocks in a Model Block Parameters Setting Block-Specific Parameters Block Properties Dialog Box Deleting Blocks Changing the Orientation of Blocks Resizing Blocks Manipulating Block Names Displaying Parameters Beneath a Block's Icon Disconnecting Blocks Assigning Block Priorities Displaying Block Execution Order Using Drop Shadows Sample Time Colors Connecting Blocks Drawing a Line Between Blocks Drawing a Branch Line Drawing a Line Segment Moving a Line Segment Dividing a Line into Segments Moving a Line Vertex Inserting Blocks in a Line Working with Signals About Signals Signal Buses Signal Glossary Determining Output Signal Dimensions Signal and Parameter Dimension Rules Scalar Expansion of Inputs and Parameters Working with Complex Signals Checking Signal Connections Setting Signal Display Options Signal Names Signal Labels Displaying Signals Represented by Virtual Signals Setting Signal Properties Signal Properties Dialog Box Annotations Working with Data Types Data Types Supported by Simulink Block Support for Data and Numeric Signal Types Specifying Block Parameter Data Types Creating Signals of a Specific Data Type Displaying Port Data Types Data Type Propagation Data Typing Rules Enabling Strict Boolean Type Checking Typecasting Signals Typecasting Parameters Working with Data Objects Data Object Classes Creating Data Objects Accessing Data Object Properties Invoking Data Object Methods Saving and Loading Data Objects Using Data Objects in Simulink Models Creating Data Object Classes The Simulink Data Explorer Summary of Mouse and Keyboard Actions Creating Subsystems Creating a Subsystem by Adding the Subsystem Block Creating a Subsystem by Grouping Existing Blocks Model Navigation Commands Window Reuse Labeling Subsystem Ports Controlling Access to Subsystems Using Callback Routines Tracing Callbacks Model Callback Parameters Block Callback Parameters Tips for Building Models Libraries Terminology Creating a Library Modifying a Library Creating a Library Link Disabling Library Links Modifying a Linked Subsystem Propagating Link Modifications Updating a Linked Block Breaking a Link to a Library Block Finding the Library Block for a Reference Block Library Link Status Displaying Library Links Getting Information About Library Blocks Browsing Block Libraries Adding Libraries to the Library Browser Modeling Equations Converting Celsius to Fahrenheit Modeling a Simple Continuous System Saving a Model Printing a Block Diagram Print Dialog Box Print Command Specifying Paper Size and Orientation Positioning and Sizing a Diagram Searching and Browsing Models Searching for Objects The Model Browser Managing Model Versions Specifying the Current User Model Properties Dialog Creating a Model Change History Version Control Properties Ending a Simulink Session Running a Simulation Introduction Using Menu Commands Running a Simulation from the Command Line Running a Simulation Using Menu Commands Setting Simulation Parameters and Choosing the Solver Applying the Simulation Parameters Starting the Simulation Simulation Diagnostics Dialog Box The Simulation Parameters Dialog Box The Solver Pane The Workspace I/O Pane The Diagnostics Pane The Advanced Pane Improving Simulation Performance and Accuracy Speeding Up the Simulation Improving Simulation Accuracy Running a Simulation from the Command Line Using the sim Command Using the set_param Command sim simplot simset simget Analyzing Simulation Results Viewing Output Trajectories Using the Scope Block Using Return Variables Using the To Workspace Block Linearization Equilibrium Point Determination linfun trim Using Masks to Customize Blocks Introduction A Sample Masked Subsystem Creating Mask Dialog Box Prompts Creating the Block Description and Help Text Creating the Block Icon The Mask Editor: An Overview The Initialization Pane Prompts and Associated Variables Control Types Default Values for Masked Block Parameters Tunable Parameters Initialization Commands The Icon Pane Displaying Text on the Block Icon Displaying Graphics on the Block Icon Displaying Images on Masks Displaying a Transfer Function on the Block Icon Controlling Icon Properties The Documentation Pane The Mask Type Field The Block Description Field The Mask Help Text Field Creating Self-Modifying Masked Blocks Creating Dynamic Dialogs for Masked Blocks Setting Masked Block Dialog Parameters Predefined Masked Dialog Parameters Conditionally Executed Subsystems Introduction Enabled Subsystems Creating an Enabled Subsystem Blocks an Enabled Subsystem Can Contain Triggered Subsystems Creating a Triggered Subsystem Function-Call Subsystems Blocks That a Triggered Subsystem Can Contain Triggered and Enabled Subsystems Creating a Triggered and Enabled Subsystem A Sample Triggered and Enabled Subsystem Creating Alternately Executing Subsystems Block Reference What Each Block Reference Page Contains Simulink Block Libraries Abs Algebraic Constraint Backlash Band-Limited White Noise Bitwise Logical Operator Bus Selector Chirp Signal Clock Combinatorial Logic Complex to Magnitude-Angle Complex to Real-Imag Configurable Subsystem Constant Coulomb and Viscous Friction Data Store Memory Data Store Read Data Store Write Data Type Conversion Dead Zone Demux Derivative Digital Clock Direct Look-Up Table (n-D) Discrete Filter Discrete Pulse Generator Discrete State-Space Discrete-Time Integrator Discrete Transfer Fcn Discrete Zero-Pole Display Dot Product Enable Fcn First-Order Hold From From File From Workspace Function-Call Generator Gain Goto Goto Tag Visibility Ground Hit Crossing IC Inport Integrator Interpolation (n-D) Using PreLook-Up Logical Operator Look-Up Table Look-Up Table (2-D) Look-Up Table (n-D) Magnitude-Angle to Complex Manual Switch Math Function MATLAB Fcn Matrix Concatenation Matrix Gain Memory Merge MinMax Model Info Multiport Switch Mux Outport Polynomial Prelook-Up Index Search Product Probe Pulse Generator Quantizer Ramp Random Number Rate Limiter Real-Imag to Complex Relational Operator Relay Repeating Sequence Reshape Rounding Function Saturation Scope Selector S-Function Sign Signal Generator Signal Specification Sine Wave Slider Gain State-Space Step Stop Simulation Subsystem Sum Switch Terminator To File To Workspace Transfer Fcn Transport Delay Trigger Trigonometric Function Uniform Random Number Unit Delay Variable Transport Delay Width XY Graph Zero-Order Hold Zero-Pole Model Construction Commands Introduction How to Specify Parameters for the Commands How to Specify a Path for a Simulink Object add_block add_line bdclose bdroot close_system delete_block delete_line find_system gcb gcbh gcs get_param new_system open_system replace_block save_system set_param simulink Simulink Debugger Starting the Debugger Starting the Simulation Using the Debugger's Command-Line Interface About Block Indexes Accessing the MATLAB Workspace Getting Online Help Running a Simulation Continuing a Simulation Running a Simulation Nonstop Advancing to the Next Block Advancing to the Next Time Step Setting Breakpoints Setting Breakpoints at Blocks Setting Breakpoints at Time Steps Breaking on Nonfinite Values Breaking on Step-Size Limiting Steps Breaking at Zero-Crossings Displaying Information About the Simulation Displaying Block I/O Displaying Algebraic Loop Information Displaying System States Displaying Integration Information Displaying Information About the Model Displaying a Model's Block Execution Order Displaying a Block Debugger Command Reference ashow atrace bafter break bshow clear continue disp help ishow minor nanbreak next probe quit run slist states systems status step stop tbreak trace undisp untrace xbreak zcbreak zclist Performance Tools About the Simulink Performance Tools Option The Simulink Accelerator How Does It Work? How to Run the Simulink Accelerator Handling Changes in Model Structure Increasing Performance of Accelerator Mode Blocks That Do Not Show Speed Improvements Using the Simulink Accelerator with the Simulink Debugger Interacting with the Simulink Accelerator Programmatically Comparing Performance Customizing the Simulink Accelerator Build Process Controlling S-Function Execution Model Differencing Tool Display Options Model Differences Report Profiler How the Profiler Works Enabling the Profiler The Simulation Profile Model Coverage Tool How the Model Coverage Tool Works Using the Model Coverage Tool Creating and Running Test Cases The Coverage Report Coverage Settings Dialog Box Model Coverage Commands Model and Block Parameters Introduction Model Parameters Common Block Parameters Block-Specific Parameters Mask Parameters Model File Format Model File Contents Model Section BlockDefaults Section AnnotationDefaults Section System Section