Page 89 - Advanced Course

KNX ADVANCED COURSE

1 Integrated KNX Applications

1.1 Introduction

Simple user functions such as manually switching lights and closing/opening shutters as
well as simple time parameters are not sufficient in many cases as the customer requests
a KNX installation precisely because of the comprehensive range of different functions
available with possibilities for integration. Some of these combined user functions are
outlined in this chapter.

1.2 Scene control

The actuator control of individual functions from switching and dimming lights, moving
shutters, setting the modes of heating/cooling systems and activating/deactivating an
alarm system can be carried out very conveniently using scene control. This is
implemented via so-called scene modules or scene controllers. These controllers have
two methods of operation:

1.2.1 Recalling Scenes
The minimum function of a scene controller is to link a range of controls (value outputs)
from actuators or operating modes with the corresponding objects and to then start them
via the recall object (a binary object). There are in general several different status
combinations (actual scenes) for the objects that are to be controlled. Simple controllers
send the scene control telegrams to the bus with the highest possible transmission rate
and without any time factors. More advanced devices also allow telegrams to be sent with
a time delay and telegrams to be deliberately repeated.

Scene control - Method 1
Scene control - Method 1

Switch actuator
Preselection A: Scene 1
Preselection B: Scene 2 Switch
Preselection C: Scene 3 Scene module EIS 1 (1 bit)
Preselection D: Scene 4
Group 1 Switch actuator
4-fold push 1 1 0 0 EIS 1 (1 bit)
button "1" = Scene 1 0 1 0 0 Group 2 Switch
EIS 1 (1 bit)
Recall scene 1/2 Recall scene 1/2 EIS 1 (1 bit)
EIS 1 (1 bit) EIS 1 (1 bit)
"1" = Scene 3 0 1 1 0 Group 3 Switch actuator
Recall scene 3/4 Recall scene 3/4 EIS 1 (1 bit)
EIS 1 (1 bit) EIS 1 (1 bit) 1 0 1 1 Switch
Programming Programming EIS 1 (1 bit)
EIS 10 (2 byte) EIS 10 (2 byte) Group 8
Scene 1, 1 1 0 1
Group 1, On EIS (1 bit)
1 2 3 4
Switch actuator
Switch
EIS 1 (1 bit)
Figure 1: Recalling scenes: A 4-fold push button can control 4 different scenes

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