Page 136 - Advanced Course

KNX ADVANCED COURSE

Dimming value X%
Dimmer UP Dimming
Dimmer DOWN

OFF command
Dimming value OFF
STOP
Value reached
ON command
Dimming value X%
Dimmer UP
Dimming value OFF Dimmer DOWN
OFF command Dimmer UP
Dimmer DOWN Dimming value X% ON command
STOP STOP
ON command
OFF ON
OFF command
Dimming value OFF

5.3 Functional Block – Sunblind Actuator Basic

5.3.1 General

The function “Drive Control” is used primarily for controlling blind and roller shutter
motors.
A sunblind actuator shall per channel at least support two group objects complying to the
underneath stated DPTs:

StopStep UpDown, DPT 1.007
Move UpDown, DPT 1.008
Any other group objects are optional.
Important: Group objects using this function shall not reply to read requests through the
bus (Group Value Read messages). This restriction ensures that drives are not
inadvertently set into motion. The READ flag of the group objects shall therefore be reset!
This applies both to sensors AND actuators!
If devices are not of the type BCU1, the above is not needed, provided the update flag in
the respective objects are not set.

Home and Building Management Systems KNX Association
Interworking Interworking_E1209b.doc 34/36