User Manual

15-19
Siemens Switzerland Ltd www.siemens.com/gamma 2019
Building Technologies Division
Technical Information and Application Examples
Application Examples
Monitoring properties with KNX via Ethernet (LAN)
Demand-oriented maintenance through remote signaling
Some distributed properties need to be checked regularly for certain
conditions and maintained accordingly, for example the fill levels of
oil tanks in distributed apartment buildings or the operating hours of
consumers.
These states can now be reported centrally to any location.
This can eliminate the need for cyclical inspection walkthroughs and
appropriate maintenance can be carried out when needed, such as
refilling the oil tanks in distributed properties. You can even select the
best time to do this, such as when oil prices are lowest.
Benefits
• Central status messages for distributed properties
• Less maintenance required
• Optimization of maintenance costs
Follow these steps
• Connect one IP interface N 148/22 to the KNX for each property
• Connect the IP interface N 148/22 to the LAN
• Configure the IP interface N 148/22 via the Internet/intranet for
accessibility
• Define the IP interface N 148/22 in the visualization software or ETS
respectively
• Observe the related safety and security requirements governing the
LAN
You will need
• One IP interface N 148/22 for each property, for example
• 24-V power supply for IP interface N 148/22, e.g. Power over
Ethernet, unchoked bus voltage
• Visualization software
• ETS; see knx.org for the latest version
Note:
LAN stands for Local Area Network. In LANs, data transport is orga-
nized using the IP (Internet Protocol) – the standard network protocol
on the Internet.
VPN (Virtual Private Network) lets you set up a secure subnetwork via
an open, unsecured network (Internet, wireless network) by protecting
all communication against access or being tapped into by unauthorized
third parties. This is achieved by means of „tunneling“ the data traffic
via a VPN server, which means that any connections must be authenti-
cated and that alldata is also encoded.
The solution
Internet VPN connection
or Intranet/LAN
KNX device
KNX device
Property 1
Property 2
Property 3
KNX device
IP interface
IP interface
IP interface
I201_15416
KNX
KNX
KNX
LAN
LAN
LAN
LAN
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