Math Solvers and SysPhS Simulation in Enterprise Architect 15.2

Overview

This webinar introduces some of the new mathematical and simulation features available in Enterprise Architect 15.2. Learn how to use the new OMG standard for SysPhS to construct SysML models for simulation in third-party programs such as Matlab's Simulink and Modelica. We will look various SysPhS models, including a physical system model, which represents the physical flow of water from one tank to another via a pipe, in-order to help illustrate how some of the new features work.

Learn how to create new Solver classes in JavaScript. The solver can be used throughout the script or simulation to call Matlab functions, or to get or set variables in the Matlab workspace. Visualize and model your simulations, leveraging state of the art mathematical and simulation capabilities.

In this session, you will learn how to:

Call and run Matlab functions directly from Enterprise Architect.
Setup a chart, custom built dialog, or run custom functions and routines.
Create and establish a Solver Class in JavaScript.

Melbourne	Wed 23 Jun	09:00 am
New York	Tue 22 Jun	19:00 pm
Los Angeles	Tue 22 Jun	16:00 pm
London	Wed 23 Jun	00:00 am
Singapore	Wed 23 Jun	07:00 am

Questions & Answers

1. How do you set the path in EA for Matlab/Simulink and Openmodlica?

For most cases the path to Matlab is detected automatically, and for Modelica is set to the default install path. If there are multiple versions of Matlab installed, or the automatic detection isn't working, the location can be overridden in the Configure SysML Simulation window. Select Modelica or Simulink from the drop-down, then drop down the left-most toolbar button and select 'Configure Simulation Solver' and enter the path to the binary location here, for example, "C:\Program Files\MATLAB\R2021a".

2. MATLAB is great, but can you flip your simulation setting to OpenModelica and demo some of that functionality? Specifically for the part you mentioned about using state machines to model non-linear systems?

The Humidifier example model can be run as-is with Modelica selected and will generate the Modelica output files which show how the State Machine is implemented in OpenModelica.

3. Can I download the example model file after the webinar?

Example Model Download

4. From a base install of Sparx EA, how do we enable this capability? Is it an MDG package that we need to install? If so, which one? (https://sparxsystems.com/products/3rdparty/simulation.html)

The new functionality was first included with Enterprise Architect 15.2. Solvers require Coprporate, Unified or Ultimate edition. SysPhS simulation with Simulink or Modelica requires Unified or Ultimate edition. No extra MDG or other download is required.

For more information on editions and specific features, please refer to our Compare Editions page.
Compare Editions

5. Is there a minimum version of Sparx EA Client?

First introduced in Enterprise Architect v15.2 (Build 1554), but we recommend using the latest version with various fixes and improvements.

6. Is this capability compatable with WebEA and ProCloud?

Solvers and Simulations require Enterprise Architect desktop application to run. The SysML models can be shared and viewed in WebEA.

7. Can the graphs and output be included in Sparx EA reports, either report builder or document generator code?

Matlab graphs can be saved as images by calling the Matlab command: 'exportgraphics' (in R2020b or later) or 'saveas' for earlier versions. This can be done directly with the Solver class, or for SysPhS simulation you can edit the SysMLSim Script template. The generated images can then be included in reports.

8. Can simulations be scheduled to run on the Sparx EA Procloud server to update diagrams etc, over night? Possible use case could be, information is imported to Sparx EA updating variables from live systems.

No, Simulations must be run from within Enterprise Architect via the Configure SysML Simulation window.

9. Has this been used for, or are there any examples, of solving Queueing problems?

We don’t have an example specifically of solving a queueing problem, but if the system can be modeled in Simulink of Modelica then it can be be modeled in Enterprise Architect by referencing the Simulink blocks.

Math Solvers and SysPhS Simulation in Enterprise Architect 15.2

23 June 2021

This webinar has completed, the recording will be posted shortly.

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