Data acquisition problem in Simulink model

Hello,

I have created a Simulink model in order to acquire temperature measurements from a sensor. I launch the simulation and it runs even for several hours without problems until I decide to stop it. The strange thing happens when I relaunch the simulation: the software seems to read only one measurement and then it automatically stops without errors.

The only solution I found is to rewrite from zero the model. What does it mean? Could be a corrupted file or something?

Can anyone help me? Thank you

Chiara

Answer 1

[Pratyush]

Hi Chiara,

The issue where a Simulink model stops running properly after the first successful execution could be due to several factors, not necessarily a corrupted file. Consider these potential causes and solutions:

• Ensure hardware resources are properly released after simulation. Add cleanup commands for hardware interfaces.
• Check for initialization steps that may not repeat on subsequent runs. Use the "StartFcn" callback for necessary re-initialization.
• Review and adjust solver settings. Ensure settings are correctly applied for each run.
• Update your Simulink and MATLAB to the latest version to avoid known bugs.
• Less likely if the model runs correctly initially. Regularly back up your model and try exporting it to a new file.
• Simplify the model to pinpoint the problem.

These steps should help diagnose and potentially resolve the unusual behavior of your Simulink model.