Knx Communications; S-Mode; Lte Mode - Siemens RDF301 Basic Documentation

Definitions
Siemens
Building Technologies

3.11 KNX communications

The RDF KNX thermostats support communications as per the KNX specification.

S-mode

Standard mode; engineering via group addresses.

LTE mode

Logical Tag Extended mode, for easy engineering,
is used in conjunction with Synco.
3.11.1 S-mode
This mode corresponds to KNX communications.
Connections are established via ETS3 Professional by assigning communication
objects to group addresses.
3.11.2 LTE mode
LTE mode was specifically designed to simplify engineering. Unlike with S-mode,
there is no need to create the individual connections (group addresses) in the tool.
The devices autonomously establish connections.
To make this possible, the following circumstances are predefined:
 Every device or subdevice is located within a zone
 Every data point (input or output) is assigned to a zone
 Every data point (input or output) has a precisely defined "name"
Whenever an output and an input with the same "name" are located in the same
zone, a connection is established automatically, as shown in the following diagram.
Time Switch
Geogr. zone 2.5.1 or 2.1.1
Operating mode
Sensor
Outside temperature zone 1
Outside temperature
RDF301, RDF301.50 Basic documentation
Functions
RDF / RDG
Geogr. zone 2.5.1
Room temperature
Operating mode
Refr. distr zone 1
Cool demand
Heat distr zone 1
Heat demand
Outside temperature zone 1
Outside temperature
Chiller
Refr. distr zone 1
Cool demand
Boiler
Heat distr zone 1
Heat demand
45 / 80
CE1P3171en
22 Jun 2010