Apricum UIMip, Documentation, Page: 7 / 18

UIM ip - TAD
02.03.2017 7 / 19
4.3 KNX T
ELEGRAMS IN THE
IP N
ETWORK
The
UIM ip can be used as an interface in a network installation field. In accordance with the
KNXnet/IP protocol specification the UIM ip sends telegrams from theKNX network to the
IP network and vice versa. If the IP address is changed from the IP sideit might happen that the
ETS does no longer recognize the device. Then the connection canno longer be established
(Tunneling uses IP addresses!).
Please note:

As a precaution, always run a restart or change the IP address from the TP side.

If there are problems with the IP address assignment please ask your administrator.

According to the topology, the additional physical addresses for tunnelling always
have to be assigned in the range of sub line addresses. For more information about
the additional tunneling addresses please refer to
Tunneling Addresses (Additional
Physical Addresses) .
5 A
PPLICATION
D
ESCRIPTION
The IP Interface is designed for use in 10/100 BaseT networks compliant to IEEE802.3.
The device features an AutoSensing function and sets the baud rate (10 Mbit or 100 Mbit)
automatically. The IP address of the device can be received from a DHCP server.
For this purpose the ETS automatic assignment setting of the IP address is required.
If no DHCP server is found with this setting, the device starts an AutoIP procedure and
autonomously assigns an IP address. The IP address which the device receives during
its start-up (via DHCP or AutoIP) is retained until the next start-up (e.g. due to
switching on/off or reprogramming). If the IP address of the
UIM ip is supposed
to have a fixed assignment, in the ETS a fixed IP address (as well as a subnet mask and
a standard gateway) can be set.