The IP addresses of IO devices can be assigned by the IO controller and have always the
same sub-network mask as the IO controller. The IP addresses can be consecutively
assigned from the IP address of the IO controller.
If the IP address is set by the IO controller, it is saved in a volatile fashion. Furthermore, you
can change the IP address manually. In this case, the IP address is saved in non-volatile
fashion.
If the IP address is to be stored in a non-volatile memory, the address must be assigned
using the Primary Setup Tool (PST).