Interactive simulation

[adeas31]

Purpose

Interactive simulation using OMSimulator.

Approach

Communicate with OMSimulator using zmq for data exchange.

[adeas31]

@lochel now checking/unchecking the variable sends the following json command to the server,

{'arg': 'enable', 'cref': 'TestSimulation.Root.CauerLowPassSC.C1.C', 'fcn': 'signals'}
{'arg': 'disable', 'cref': 'TestSimulation.Root.CauerLowPassSC.C1.C', 'fcn': 'signals'}

Based on the enabled signals the server should start sending the values.

[lochel]

@adeas31 I am now sending the time point and all active signals back to OMEdit. Please check if the format is okay, or if I should adjust the messages.

[max-privato]

We used to have interactive simulation as an experimental feature in OMEdit also for OMC (I mean not OMS). It is still mentioned in the OMEdit manual.

Interactive simulation is a near-mandatory feature for real-time simulations e.g. using Modelica_DeviceDrivers with RealTimeSynchnonize active: you cannot wait for the real-time session to be ended to look at what's going on, through watching some significant plots.

I understand that interactive simulation was dropped some time ago from OMEdit because it did not work as expected. But now it is being considered for OMS: wIll it be restored also for OMEdit?
I would appreciate it a lot, for my real-time simulations, which are nice Modelica (and Modelica_DeviceDrivers library)-based Hardware-In-the-Loop (HIL) simulations.

[lochel]

I think we still use the (old) interactive simulation for the Petri net simulator (not OMEdit). @cbrinkrolf is that correct?

[adeas31]

The interactive simulation for Modelica models is still there in OMEdit.

This one is for SSP models and the idea with this work is also to have a common GUI interface for both Modelica and SSP models interactive simulation.

[max-privato]

The interactive simulation for Modelica models is still there in OMEdit.

Do you mean that it can be used for Modelica simulations?
If the answer is yes, where can I find how to do?
Thanks

[adeas31]

https://openmodelica.org/doc/OpenModelicaUsersGuide/latest/omedit.html#interactive-simulation

The video in the users guide is bit old. The interactive controls are moved to a new tab in simulation setup dialog.

[max-privato]

https://openmodelica.org/doc/OpenModelicaUsersGuide/latest/omedit.html#interactive-simulation

The video in the users guide is bit old. The interactive controls are moved to a new tab in simulation setup dialog.

WOW!
It was really easy to find. Thank you very much. This helps me considerably.
Interactive simulation coupled with realTimeSynchronise opens a whole world to me.

[lochel]

@adeas31 how much work is left?

[adeas31]

Not much. I can read the data now. I just need to plot it.
The thing to think about is usability. I am trying to make it more user friendly. The way it works right now is confusing.

[CLAassistant]

All committers have signed the CLA.