How to log Data with Raspberry Pi and ROS

Dear Sir or Madam,

I am using Raspberry Pi 3, Matlab2018b and the ROS Toolbox to perform a mapping task. So the Model is running in the ROS environment.

With a 'To Workspace Block' I want to save data as a 'Structure With Time' on the Raspberry Pi while running my model on the Raspberry Pi.

I enabled MAT-file logging and I can find a <model_name>.mat file with the signals I am logging on the Raspberry Pi.

But this file only contains only the latest data. And there are no other .mat files. Is there a possibility to log the complite data?

I know I can run Rasberry Pi ROS also in 'external mode' or send the data as ROS Massage or using rosbags.

[MathWorks Robotics and Autonomous Systems Team]

It should have been logging the whole time based signal for this, can you confirm the model ran more than 1 time-step?

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