The best inspiration I have had on this so far is that perhaps this is a monitor for various RPM settings. The screen allows you to enter tool number, which wouldn't make much sense as an alterable parameter as they could simply number each value in the table to correspond to its tool, unless you can have multiple settings per tool. My best guess is that you can adapt the tool load to vary based on the RPM's of the program that is currently running, allowing to monitor different loads at different speeds. I have continued to find no data on this parameter. The machine is currently down for repairs so I will have to wait till its back up and has some free time for experimentation before I can confirm this though.