User-defined blocks in Xcos
June 29th 2011
Clément DAVID & Bruno JOFRET
Scilab Consortium
Scilab/Xcos: Modeling dynamical systems
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Configurable subsystems use
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Conditionally executed
subsystems creation
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Signals and blocks parameters
adaptation
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Scilab algorithms and handwritten code integration
The free and open source software for numerical computation
Outline
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Model Building and Edition:
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User-defined palettes,
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Configurable subsystems use.
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Xcos toolbox skeleton
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Future external modules:
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User defined blocks enabling Scilab and Modelica algorithms
calls.
The free and open source software for numerical computation
Model Building and Edition
The free and open source software for numerical computation
Example to mimic a Simulink® block
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Emulate an integrator which triggers a state reset on an input signal
1
s
xo
In te g ra to r
Scilab / Xcos
Matlab / Simulink
Simulink is a registered trademark of The Mathworks, Inc.
The free and open source software for numerical computation
The Simulink® diagram
1
C o n sta n t
1
s
P u lse
G e n e ra to r
xo
In te g ra to r
0
C o n sta n t1
The free and open source software for numerical computation
S cope
The Simulink® diagram results
The free and open source software for numerical computation
The Xcos diagram
The free and open source software for numerical computation
The Xcos diagram results
The free and open source software for numerical computation
With a SuperBlock
The free and open source software for numerical computation
Customize it
The free and open source software for numerical computation
With exact input mapping
The free and open source software for numerical computation
With exact input mapping (2)
The free and open source software for numerical computation
Adding to the palettes
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Using masked SuperBlocks
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Define variables in the parent context
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Use context on the blocks
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Create and customize the mask
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Remove variable in the parent context
The free and open source software for numerical computation
The masked SuperBlock
The free and open source software for numerical computation
Xcos toolbox skeleton
The free and open source software for numerical computation
Xcos toolbox skeleton
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Included into the Scilab distribution (Development tools) with:
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Documentation (how to write your own help pages),
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Examples,
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Demos.
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Quick start to deploy an Xcos module through ATOMS.
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Interface your own libraries:
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Native ones (C, C++, Fortran, …),
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Interpreted (Scilab, Modelica).
The free and open source software for numerical computation
External modules distribution
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ATOMS – http://atoms.scilab.org
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Scilab File Exchange – http://fileexchange.scilab.org
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Package your business logic
Upload sample files
Forge – http://forge.scilab.org
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Public or private collaboration platform
The free and open source software for numerical computation
Future External Modules
The free and open source software for numerical computation
UDP Blocks
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Implement blocks to handle remote data access using the UDP
protocol:
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http://forge.scilab.org/index.php/p/udp-blocks/
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not yet packaged in ATOMS.
The free and open source software for numerical computation
UDP Blocks
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UDP Send:
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C function to send UDP packet
UDP Receive:
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C function to receive UDP packet
The free and open source software for numerical computation
UDP Blocks
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Example: Scilab ↔ Scilab
Network
The free and open source software for numerical computation
UDP Blocks
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Example: Scilab ↔ ???
Network
The free and open source software for numerical computation
UDP Blocks
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Example: ??? ↔ Scilab
Network
The free and open source software for numerical computation
UDP Blocks
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UDP Blocks:
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Based on ToolBox Skeleton,
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C Simulations function,
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Available through ATOMS (coming soon),
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Encode/Decode your own UDP packet,
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Easy communication with hardware devices.
The free and open source software for numerical computation
COSELICA
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COSELICA (Modelica)
Standard Modelica Library in Xcos
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Use more Modelica features:
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Electrical,
Thermal,
Mechanics.
Advanced Xcos UI features (port colors, SVG blocks, etc... )
The free and open source software for numerical computation
COSELICA
The free and open source software for numerical computation
COSELICA
The free and open source software for numerical computation
COSELICA
The free and open source software for numerical computation
COSELICA
The free and open source software for numerical computation
COSELICA
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COSELICA (Modelica):
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Based on ToolBox Skeleton,
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Modelica Equations,
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Generated C Simulation functions,
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Available through ATOMS (coming soon),
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Extends Xcos on other scientific domains.
The free and open source software for numerical computation
Future Functionality
Available with Scilab 5.4.0
The free and open source software for numerical computation
Block wizard
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Common UI for user blocks generation
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Ease new blocks integration
The free and open source software for numerical computation
Thanks for your attention
www.scilab.org