Hello Bacherschmidt Yes, this is possible without any problems. The Roomba j7+ can store up to 10 different maps. As soon as you place it on another floor and start cleaning, it knows where it is. If you don't buy an additional charging station, it simply finishes its work where it started. Otherwise, it will return to the charging station. Best regards Your iRobot Team
I haven't tried this yet as we are currently only on one floor. But the way the Roomba works and communicates with the base, I can't imagine that happening.