Scicos: Block diagram modeler/simulator

Scicos is a graphical dynamical system modeler and simulator developed in the Metalau project at INRIA, Paris-Rocquencourt center. With Scicos, user can create block diagrams to model and simulate the dynamics of hybrid dynamical systems and compile models into executable code. Scicos is used for signal processing, systems control, queuing systems, and to study physical and biological systems. New extensions allow generation of component based modeling of electrical and hydraulic circuits using  the Modelica language.

With Scicos you can:

• Graphically model, compile, and simulate dynamical systems
• Combine continuous and discrete-time behaviors in the same model
  
• Select model elements from Palettes of standard blocks
• Program new blocks in C, Fortran, or Scilab Language
• Run simulations in batch mode from Scilab environment
• Generate C code from Scicos model using a Code Generator
• Run simulations in real time with and  real devices using Scicos-HIL
• Generate hard real-time control executables with Scicos-RTAI and Scicos-FLEX
• Use implicit blocks developed in  the Modelica language.
• Discover new Scicos capability using additional toolboxes.
  

>> Read detailed features

>> Read Frequently asked questions

Scicos is developed in the METALAU project at INRIA, Paris-Rocquencourt center.

News

2010-2-1 The new edition of the reference book on modeling and simulation in Scilab/Scicos, Modeling and Simulation in Scilab/Scicos with ScicosLab 4.4 has been published. >> Read more

2009-12-18 Scicos 4.4 is now available here (only Windows version available for the moment, Linux and Mac versions will follow in the coming days). Please report all problems to scicos@inria.fr.
Scicos 4.4 is a major release. It includes many improvements and some new functionality. Major changes concern the code generator, the simulator and some important blocks. Here is a partial list of changes with respect to Scicos 4.3:

Graphical editor: Improved block dialog boxes with XML import/export, addition of Bus links (experimental for the moment), introduction of new facilities for constructing nice diagrams (automatic adjustment of block locations to obtain horizontal and vertical links, gridding), addition of an option to use fixed size fonts in block icons to obtain a more uniform look, and bug corrections in particular in the Masking and Atomic operations.
Scicos/Modelica compilers: Better integration of the latest version of the Modelica compiler and some minor bug corrections in the Scicos compiler. In this version, the Scicos compiler can also call the interfacing functions of Scicos and Modelica blocks with the job 'compile' during the compilation process to improve checks/sets of some block parameters (like input/output sizes and types...)
Simulator: Important architectural changes and the addition of a new solver.
Code Generator: It includes major improvements allowing in particular its application to models with asynchronous dynamics and Modelica components. Its usage via the Atomic operation allows separate compilation of non-directly-communicating Modelica parts within the same Scicos diagram. Default properties of the code generator for each Super block can now be set using a GUI. Standalone code generation now works for all Scicos diagrams (except for diagrams that use Scilab blocks) including diagrams with continuous-time dynamics requiring ODE/DAE solvers.
Library blocks: A new palette (Iterators) has been added and many improvements have been made in existing blocks, in particular the delay blocks and the scopes. The main scope blocks can now function by inheritance in most situations so their activation input port is no longer present by default. An interactively editable Scilab block of type 5 has been added.
Modelica initialization tool: The graphical interface has been improved and additional numerical solvers are used.

2009-9-26 RTSS 1.0.0 - A new release of the Robotics Toolbox for Scilab/Scicos is now available for download. RTSS is intended for modeling and simulation of robotic manipulators in the Scilab/Scicos environment and has been developed at Centro "E. Piaggio" by Matteo Morelli. See the official announcement for more details.

2009-7-22 Modnum - A new release for the Scicos-Modnum block sets is available here. Please report all problems to alan.layec@inria.fr.

2009-6-19 Etherlab - The HIL and Realtime Toolbox for Scilab/Scicos based on the EtherCAT Fieldbus and Linux Preempt-RT by Andreas Stewering-Bone is now available: etherlab-scicos-0.0.2-rc9.tar.bz2. Visit www.etherlab.org for more details.

2009-3-10 Two new documentations/tutorials on creating new blocks in Scicos are now available in the documentation section: Constructing New Blocks in Scicos, and Creating a C Function Block in Scicos by Phil Schmidt.

2009-3-10 New Scicos/Modelica Toolbox: Coselica Toolbox provides basic Modelica blocks for Scicos. Currently there are some electrical (analog) and 1D-mechanical (translational, rotational) blocks, which have been derived from the Modelica Standard Library. Coselica Toolbox can be downloaded from www.kybdr.de.

2008-12-23 The ScicosLab 4.3 Linux and Mac packages have been updated because of some missing files affecting some of the code generation functions and the documentation of Scicos 4.3. New packages are now available here. Please report all problems to scicos@inria.fr.

2008-12-18 Scicos 4.3 is now available for all platforms here. Please report all problems to scicos@inria.fr.

2008-12-15 Scicos 4.3 is now available here (only Windows version available for the moment, Linux and Mac versions will follow in the coming days). Please report all problems to scicos@inria.fr.
This release of Scicos includes: a better coverage of the Modelica language (Modelica functionalities in Scicos are developed in collaboration with LMS-Imagine), a user interface for assistance in finding consistent initial conditions for large Modelica models, a new more efficient Scicos compiler with better error reporting, improved masking operations, hierarchical palette structures, major improvement in the C code generator allowing in particular code generation for a wider class of sub-systems, a compact XML format for load and save (to be used for model exchange with other programs).


2008-4-17 Scicos 4.2.1 is now available here. Please report all problems to scicos@inria.fr. >> Read more

2008-4-17 A pool of Scicos diagrams are used to perform automatic testing of new releases of Scicos. Visit our test center. The test results concern the comparison between Scicos versions 4.2 and 4.2.1. The differences in the simulation results of a few diagrams indicate problems in version 4.2 that have been solved in 4.2.1.

2008-2-26 A new release of the Robotics Toolbox for Scilab/Scicos (RTSS) is now available. >> Read more

2007-12-25 Metalau project-team organizes a two-day Scicos course on the 25th and the 26th of March. This Scicos course aims at giving the participants a quick introduction to main Scicos functionalities (in French) >> Read more

2007-12-25 The Chinese version of the book Modeling and Simulation in Scilab/Scicos has been published in Beijing. >> Read more

2007-10-24 Scicos 4.2 has been released. This is a major release. Scicos 4.2 packaged in Scilab 4.1.2 contains numerous new features: a completely new editor with many new functionalities, extended data types and associated blocks, improved compiler and code generator, and new numerical solvers. Details of the new features of Scicos 4.2 can be found here. >> Read more
Scilab 4.1.2 can be downloaded here. The source code along with prebuilt binaries for Windows, Linux and HP platforms are available.
The following Scicos toolboxes have been upgraded to work with Scicos 4.2:
Scicos-ModNum: digital communication toolbox for Scicos by Alan Layec.
Scicos-RTAI: Scicos code generator for RTAI by Roberto Bucher.
RTSS 0.2.0: Robotics Toolbox for Scilab/Scicos (RTSS) by Matteo Morelli.