Miele PG 8593 Operating Instructions Manual page 86

Additional settings
Configuring the
interface
86
 The interface must only be configured by suitably qualified and
competent persons.
Open the menu as follows:

Button 
Additional settings

Interface

Interface
Ethernet
–
Configuration of an Ethernet interface.
RS232
–
Configuration of a serial RS232 interface
Select the type of interface and confirm your selection with OK.

Then the parameters for the interface must be configured.
Ethernet
RS232