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KNX ADVANCED COURSE
Example: Group for read request is 4/0/12
Incorrect:
Figure 7: Incorrect: Group for read request is 4/0/12
Correct:
Figure 8: Correct: Group for read request is 4/0/12
1.3.1 Example of a Read Flag
In the following example, a read request is sent by a lightscene module. The actuator
reacts with a response telegram. The group address of the central function “All lighting
ON/OFF” is however present at the transmission point. As a result, the lighting throughout
the building is switched on or off by the response telegram, depending on the status of
the queried actuator.
Figure 9: Example: read request sent by a lightscene module
Home and Building Management Systems KNX Association
Flags Flags_E1212b.doc 7/13

