# Definition range of cams and their processing

The cam functionality in the ISG-MCE is looked upon as a mechanical analogy to a cam on a vertical shaft. Cams can only be used as an absolute coupling specification between two endlessly rotating axes. Accordingly, each cam's definition range extends over the entire modulo range of the master axis. Thus, there is always precisely one associated slave position for each absolute master position, i.e. the definition range is self-contained.

In this connection, we also speak of cam processing with "closed scanning" of the cam profile with the master positions.