DNS conform station name

Question:

What does a DNS conform Profinet station name mean?

Answer:

The abbreviation DNS (Domain Name System) comes from the computer / network language and contains the assignment of permissible computer names. The Profinet station name is also adapted these DNS conform names.

followed points are important:

only letters and figures are DNS conformable characters
the hyphen - is the only allowed additional character
upper and lower case ist allowed, but not imprtant
The name kann be split in labels. This labels could 1-63 characters long and will be apart with a point.
as the first character in the name and the labels a figure is not permitted
The Lenze sation name could be 240 characters maximum.
The station name does not look like an IP adress xxx.xxx.xxx.xxx
The character port-xxx (x=0-9) is by the first label reserved and does not be taken.

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/200802946/1/