2 KNXnet/IP
IC-IP-S.1.0
is a KNX IP interface. KNX IP interfaces are highly similar to USB interfaces. The only difference
is that they use the IP communication medium and the KNXnet/IP communication protocol. However,
KNX end devices can be integrated directly via IP. This makes the Ethernet a real KNX medium.
As documented in the KNXnet/IP protocol specifications, KNX telegrams can be transmitted encapsulated
in IP packets. Ethernet networks as well as Internet can be used to route or tunnel KNX telegrams. In this
way, IP interfaces and IP routers are an alternative to USB data interfaces and TP line/area/backbone
couplers, respectively. In the latter case, a TP backbone can be completely replaced by a fast Ethernet
based line then called IP backbone.
The presence of the Internet Protocol (IP) has led to the definition of the KNXnet/IP protocol. KNXnet/IP
offers the possibility for point-to-point connections for the ETS (KNXnet/IP Tunneling) and/or between
supervisory system and KNX installation. The KNXnet/IP device management enables KNXnet/IP device
configuring via the KNX network in order to reduce the time required for complete network configuration.
2.1 IP TUNNELING
2.2 IP ROUTING
IP Routing is the way of interconnecting KNX lines and areas by IP network(s) via KNXnet/IP. In IP
networks, the KNXnet/IP Routing defines the way of KNXnet/IP router communication.
2.3 IP BOOTLOADER / BOOT MODE
The IP bootloader function is used to update the firmware and completely rewrite the flash memory
content. This is not just a simple application download. Both communication stack and application
so ware are downloaded.
The firmware update procedure via IP is executed by a web front-end, which is independent from ETS,
and makes use of special messages to speed up the process. To be protected, their contents are
encrypted.
Entering Boot Mode is equivalent to activating the IP bootloader function.
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