Simulink Real-Time 2020b. How do I monitor/log a signal in my application using App Designer?

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Hi,
I am trying to monitor a signal in my real-time application on Speedgoat using App Designer. I am trying to recreate a similar function to the one included in slrtExplorer but so far I have been unsuccessful. I am not able to use the suggested fucntions such as ConnectScalar, getCallbackDataForSignal and so on.
Does anyone know how to do it? Is there an example that is not the invertedPendulum that I can use as a reference?.
Thanks for the help!
  1 Comment
Hamidreza Kolbari
Hamidreza Kolbari on 14 Apr 2022
Hi,
I am working an a project.
I am using below two different functions
function createInstrumentation(app)
% Create a new instrument object that will be linked to the application
app.Instrument = slrealtime.Instrument;
% Connect callback to signal
addSignal(app.Instrument, [app.modelName,'/ControlValue'], 1)
addSignal(app.Instrument, [app.modelName,'/Gain2'], 1)
connectCallback(app.Instrument, @app.instrumentCallback);
end
function instrumentCallback(app, instObj, eventData)
if ~isempty(eventData.AcquireGroupData.Time)
[~, ctrlValue] = instObj.getCallbackDataForSignal(eventData, [app.modelName,'/ControlValue:1']);
[~, valveValue] = instObj.getCallbackDataForSignal(eventData, [app.modelName,'/Gain2:1']);
end
end
pushed button>>>>>>>>>>>\
createInstrumentation(app)
but it is not working. do you know what the problem is?

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Answers (1)

Diego Kuratli
Diego Kuratli on 4 Oct 2021
In R2021b, the code required for binding signals and parameters have been reduced. There is a simple example in the documentation:
If possible, I would recommend to move to R2021b.
For R2020b, this video might help:
  2 Comments
Hamidreza Kolbari
Hamidreza Kolbari on 14 Apr 2022
Hi,
I am working an a project.
I am using below two different functions
function createInstrumentation(app)
% Create a new instrument object that will be linked to the application
app.Instrument = slrealtime.Instrument;
% Connect callback to signal
addSignal(app.Instrument, [app.modelName,'/ControlValue'], 1)
addSignal(app.Instrument, [app.modelName,'/Gain2'], 1)
connectCallback(app.Instrument, @app.instrumentCallback);
end
function instrumentCallback(app, instObj, eventData)
if ~isempty(eventData.AcquireGroupData.Time)
[~, ctrlValue] = instObj.getCallbackDataForSignal(eventData, [app.modelName,'/ControlValue:1']);
[~, valveValue] = instObj.getCallbackDataForSignal(eventData, [app.modelName,'/Gain2:1']);
end
end
pushed button>>>>>>>>>>>\
createInstrumentation(app)
but it is not working. do you know what the problem is?

Sign in to comment.

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