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:

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Scicos has been created by Ramine Nikoukhah and developed in the METALAU project at INRIA, Paris-Rocquencourt center.


2016-04-14 Scicos is now officially released as part of the scientific software package NSP. NSP-1.0 for Windows may be downloaded here. Binaries for other platforms (Linux and Mac) will be made available in the coming weeks. This new release of Scicos contains in particular Simport, a Simulink import assistance tool.

2016-02-12 Modnum. A new release of Modnum for ScicosLab 4.4.2 is available.

2015-10-11 HF High Frequency Radio Telecommunications Learn by Simulation. Learn HF radio by building receiver structures, synthesizers and digital modems (RTTY/PSK/MFSK/PACTOR) in Scicos software. Build models for HF propagation and study propagation prediction. Ideal for Amateur Radio Operators and HF radio operators.

2015-10-7 Scicos 4.4.2 has been released. Packages for Windows and Mac OS X platforms are available here. This release is mainly a bug fixing release and provides support for the latest version of Visual Studio.

2014-05-30 Evidence released a new version of E4Coder including Arduino code generation support (online video), as well as various code generation optimizations for small microcontrollers.

2013-12-20 Evidence released a new version of E4Coder including RTAI and Bare Metal code generation, various optimizations in the code generated, and new blocks supported.

2013-12-20 A new release of Coselica is available for download. It contains a new Electrical.MultiPhase palette of blocks, which allows basic modeling of electrical multiphase-phase systems.

2013-11-22 Amateur Radio Operators - If you have a great idea about a new project, why not build it in Scicos/Modnum just to make sure it behaves the way you want it to, before buying all the components. QEX magazine Nov/Dec 2013, p.37, describes how.

2013-6-30 Modnum - A new release for the Scicos-Modnum block sets is available here. Please report all problems to

2013-05-20 Evidence released E4Box, a rapid prototyping hardware box provided with ScicosLab, RTAI, Comedi, E4Coder, and a Data Acquisition board, all preinstalled and ready to use.

2013-05-20 Evidence released a new version of E4Coder including Linux host support, code generation for Linux and Windows targets, GUI code generation.

2013-01-11 The D-Day Pigeon Code remains a mystery. Can you solve this? A solution attempt with complete bibliography and Scicos code examples for Frequency Analysis and Vigenère Encryption can be found here.

2013-01-11 A new release of Coselica is available for download. It contains some new blocks (operational amplifier models, MatrixGain), improved blocks (Rotational.Inertia, HeatCapacitor), and utilities to facilitate the update of old diagrams.

2012-11-21 The E4Coder Toolset has been launched by Evidence Srl. It providesefficient code generation for microcontrollers, Flat and Parallel State Machine Simulation and Code Generation, and User Interface Prototyping.

2012-7-9 Learn Telecommunications by building signals using Scicos & ScicosLab. Start off with baseband signals and proceed all the way to CDMA and OFDM. Learn Telecommunications by Simulation is an eBook containing all the simulation code and explanatory videos. The first 4 chapters of the text are available as a free download.

2012-3-28 The Autonomous Robotics Kit ScicosLab Toolbox (arkscicos) is now available for Windows, Mac and Linux. Visit the wiki

2012-2-3 SMCube is now available for ScicosLab. SMCube is a tool for modeling, simulation, and code generation of discrete time finite state machines (FSM).

2012-1-9 Scicos 4.4.1 is now available for Lion MacOSX. The package can be downloaded here.

2011-4-8 Scicos 4.4.1 has been released. Packages for Windows, Linux and Mac platforms are available here. This release is mainly a bug fixing release, however there have been some new additions and improvements wrt to Scicos 4.4. In particular, the Coselica toolbox is now included in the package. The Coselica toolbox, developed by Dr. Dirk Reusch, provides a large number of Modelica blocks for the Scicos environment.
Some improvements in Scicos are:
  • Improved scope performance under Linux and some stability issues fixed under Windows.
  • More facilities to manipulate masks: it is now possible to restore a removed mask.
  • More blocks accept integer datatype input/outputs and scalable initial conditions.
  • Annotations (text of TEXT block) can now be multiline.
A number of reported bugs have also been fixed, in particular two serious bugs in the integral and 1/z blocks.
If you encounter problems installing or using Scicos, visit the Support Section.

2011-1-8 The stable version of Scicos 4.4 is being released. Packages for Windows and some Linux platforms are already available here. Other packages are being created and will be posted shortly. Please report all problems to

2010-10-25 The Modelica compiler used in Scicos is now available under GPL. Version 1.12.2 can be downloaded from InriaGForge.

2010-10-25 More than seventy people from academia and industry have attended the three days training course "Scicoslab 2010", organized in collaboration with Florence University. The five tutors have shown how to use ScicosLab and its toolboxes to simulate and generate code for real time embedded control systems, from simple PIDs to complex robotics applications. All the course materials (slides, documentation, examples and photos) are available here

2010-9-9 A 3 day training Course on simulation and automatic code generation for real time embedded systems using ScicosLab and Erika/Linux will take place in Florence University in October 2010. >> Read more

2010-6-28 Scicos-ITM v1.0 (Integrated Tokamak Modeling toolbox for ScicosLab developed by Simone Mannori, Roberto Bucher, ScicosLab Dev. Team) will be presented at the next "ITM Working Session Code Camp on Control Activities" at CEA Cadarache. Scicos has been selected for modeling, simulation and automatic code generation by the CEA team (ISIP) working on control technologies for thermonuclear fusion applications.

2010-6-15 Technology transfer and non-exclusive licensing agreement for Scicos software: INRIA and Altair Engineering, Inc. have signed a technology transfer and non-exclusive licensing agreement for Scicos software developed by the METALAU project team based at the Paris-Rocquencourt INRIA research center. >> Read more

2010-5-23 A new release of the ScicosLab Pack is available from Evidence with full ScicosLab support. The ScicosLab Pack allows Code Generation for Microchip dsPIC DSC, the FLEX boards and for educational control plants. >> Read more

2010-4-16 An educational ball and plate plant for teaching automatic control is now available from Evidence with full Scicos support. >> Read more

2010-2-10 Scicos 4.4 is now available for Windows, Mac and a number of Linux platforms. Please report all problems to

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 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 of 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