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User Guide
Learn about the features and functionality available in Twin Activate.
Libraries and Extension Manager
Learn about block libraries and managing them through the Extension Manager.
Library Basics
Become familiar with the library structure in Twin Activate.

Welcome
What's New
Discover new features and enhancements.
Get Started
New to Twin Activate? Learn the basics here.
Tutorials
Start using Twin Activate with our interactive tutorials.
User Guide
Learn about the features and functionality available in Twin Activate.
- Model Components
  Learn about the components in Twin Activate models.
- Physical Component Modeling
  Learn about modeling physical components.
- Hydraulic System Modeling
  Learn about modeling hydraulic systems with the Hydraulics library (HydraulicsByFluidon).
- Electrical System Modeling
  Learn about modeling electrical and electronic systems with Modelica and Spice.
- Multibody Mechanical System Modeling
  Learn about modeling multibody dynamic systems.
- Electromagnetic System Modeling
  Learn about modeling electromagnetic systems.
- Simulation
  Learn how to set up, run, and troubleshoot simulations.
- Libraries and Extension Manager
  Learn about block libraries and managing them through the Extension Manager.
  - Library Basics
    Become familiar with the library structure in Twin Activate.
  - Working with Libraries
    Access, create, edit, install and uninstall libraries.
  - Modelica Library
    The standard Modelica library is organized with these functional palettes: User Guide, Electrical, Magnetic, Mechanics, Thermal and Sl Units.
  - Arduino Library
    Twin Activate offers a standard Arduino library of blocks organized into functional palettes: Arduino Configuration, Basic, Components and Motors.
  - Extension Manager
    Use the Extension Manager to create custom extensions, load extensions automatically, and add custom documentation for defined features.
- Code Generation
  Learn about generating C code from a Super Block.
- Graphical User Interfaces
  Learn about the methods for creating a GUI in Twin Activate.
- Import Tools
  Import Embed diagram models into Twin Activate with the Embed Import tool.
- Export Tools
- Block Builder
  Use the Block Builder tool to easily construct and customize basic blocks and programmable super blocks.
- MAT Explorer
  Use the MAT Explorer interface to explore and load variables from one or more .MAT files, providing a visual way to see the contents of selected .MAT files and to import variables into an OML session.
- Keyboard Shortcuts
  Define shortcuts to common operations.
Reference Guides
Explore the Extended Definitions, OML Guides, Block Library, API Guide and Glossary.
Frequently Asked Questions
You've got questions? We've got answers!

Library Basics

Become familiar with the library structure in Twin Activate.

Library Organization

The blocks in a library are organized into directories called palettes. Each library can have multiple palettes to expose different sets of blocks. The palettes are displayed as nested directories from the File > Palette Browser. When opened in the modeling window, the palettes are displayed as diagrams.

The standard system library of the software includes the Twin Activate and Modelica palettes. These palettes hold a wide range of predefined blocks. Additional libraries are available in the Professional version of Twin Activate including Spice, Hydraulics by Fluidon, Arduino and more.

Library Management

The software facilitates the creation, installation, and editing of block libraries through the Library Manager: File > Libraries > Manager. A set of APIs is also available for these operations.

Libraries are versioned for managing additions or modifications to the libraries.

The installation and removal of libraries and associated extensions is also managed through the File > Extension Manager.

Library Contents

Libraries contain an organized set of OML scripts, demos, utilities and help files:

Library Customization

A set of functions is available for customizing libraries. See the chapter on Libraries in the Extended Definitions for Advanced Users.

Library Licensing

Twin Activate supports licensed third-party and external libraries. Licenses are implemented based on the Altair Licensing system.