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R2012a Documentation → SimEvents
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Contents

Index

• Getting Started

• Product Description

Key Features

• Discrete-Event Simulation Using SimEvents in Simulink Models

Resources for Learning

• Related Products

Information About Related Products

Limitations on Usage with Related Products

What Is an Entity?

• What Is an Event?

Overview of Events

Relationships Among Events

Viewing Events

• Running a Demo Simulation

Overview of the Model

Opening the Model

Examining Entities and Signals in the Model

Key Components of the Model

Running the Simulation

• Building a Simple Discrete-Event Model

Overview of the Example

Opening a Model and Libraries

Moving Blocks into the Model Window

Configuring Blocks

Connecting Blocks

Running the Simulation

• Exploring a Simulation Using the Debugger and Plots

Exploring the D/D/1 System Using the SimEvents Debugger

Exploring the D/D/1 System Using Plots

Information About Race Conditions and Random Times

• Building a Simple Hybrid Model

Overview of the Example

Opening a Time-Based Simulink Demo

Adding Event-Based Behavior

Running the Hybrid F-14 Simulation

Confirming Event-Based Behavior Using the SimEvents Debugger

Visualizing the Sampling and Latency

Event-Based and Time-Based Dynamics in the Simulation

Modifying the Model to Drop Some Messages

• Reviewing Key Concepts in SimEvents Software

Meaning of Entities in Different Applications

Entity Ports and Paths

Data and Signals

• Role of Entities in SimEvents Models

Creating Entities in a Model

Varying the Interpretation of Entities

Data and Entities

Introduction to the Time-Based Entity Generator

• Specifying Intergeneration Times for Entities

Definition of Intergeneration Time

Approaches for Determining Intergeneration Time

How to Specify a Distribution

How to Specify Intergeneration Times from a Signal

Example: Using Random Intergeneration Times in a Queuing System

Example: Using an Arbitrary Discrete Distribution as Intergeneration Time

Example: Using a Step Function as Intergeneration Time

• Role of Queues in SimEvents Models

Behavior and Features of Queues

Physical Queues and Logical Queues

Accessing Queue Blocks

• Role of Servers in SimEvents Models

Behavior and Features of Servers

What Servers Represent

Accessing Server Blocks

• Using FIFO Queue and Single Server Blocks

Varying the Service Time

Constructs Involving Queues and Servers

Example of a Logical Queue

• Role of Paths in SimEvents Models

Definition of Entity Paths

Implications of Entity Paths

Overview of Routing Library for Designing Paths

• Output Switching to Select a Departure Path

Role of the Output Switch

Sample Use Cases

Example: Selecting the First Available Server

Example: Using an Attribute to Select an Output Port

• Input Switching to Select an Arrival Path

Role of the Input Switch

Example: Round-Robin Approach to Choosing Inputs

• Combining Entity Paths

Role of the Path Combiner

Sequencing Simultaneous Pending Arrivals

Difference Between Path Combiner and Input Switch

• Example: A Packet Switch

Overview of the Example

Generating Packets

Storing Packets in Input Buffers

Routing Packets to Their Destinations

Connecting Multiple Queues to the Output Switch

Modeling the Channels

• User's Guide

• Working with Entities

• Working with Events

• Managing Simultaneous Events

• Working with Signals

• Role of Event-Based Signals in SimEvents Models

Overview of Event-Based Signals

Comparison with Time-Based Signals

Tips for Using Event-Based Signals

Signal Restrictions for Event-Based Signals

• Generating Random Signals

Generating Random Event-Based Signals

Examples of Random Event-Based Signals

• Using Data Sets to Create Event-Based Signals

Behavior of the Event-Based Sequence Block

Generating Sequences Based on Arbitrary Events

• Converting Between Time-Based and Event-Based Signals

When to Convert Signals

When Not to Convert Signals

How to Convert Signals

Signal Conversion When Using Custom Library Blocks

• Manipulating Signals

Specifying Initial Values of Event-Based Signals

Example: Resampling a Signal Based on Events

• Sending Data to the MATLAB Workspace

Behavior of the Discrete Event Signal to Workspace Block

Example: Sending Queue Length to the Workspace

• Working with Multivalued Signals

Zero-Duration Values of Signals

Importance of Zero-Duration Values

Detecting Zero-Duration Values

Working with Bus Signals

• Modeling Queues and Servers

• Routing Techniques

• Regulating Arrivals Using Gates

• Forcing Departures Using Timeouts

• Computations on Event-Based Signals

• Plotting Data

• Using Statistics

• Using Stateflow Charts in SimEvents Models

• Debugging Discrete-Event Simulations

• Learning More About SimEvents Software

• Migrating SimEvents Models

• Configuration Parameters

• Model Advisor Checks

Glossary

• Blocks

• Functions

Examples

• Release Notes

Working with Signals

Example: Effects of Specifying Event Priorities

Role of Event-Based Signals in SimEvents Models

Free SimEvents Evaluation Kit

Learn how you can use SimEvents discrete-event simulation capabilities through these technical resources.

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Trials Available

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