In AEMPro, go to "setup" > "internal logging", setup your internal logger like this:

If you follow the above picture. The internal logger will be activated whenever RPM is 100 or higher. You can modify the conditions and parameters to fit your needs. With this setup, the EMS will start over writing itself when it runs out of memory (loop logging). When you need to download the internal log, go to "ECU" > "download log data"
There are other ways of setting up the internal logger, this is just an example to show users how to set up the internal logger.