Page 17 - Advanced Course
P. 17
KNX ADVANCED COURSE
Some specific features should be noted when using read flags:
If read flags are used in an installation (e.g. when storing light scenes), it should be
ensured that the read flag is only set once for each group address in order to avoid
multiple responses after a read request.
The read flag should only be set at the bus device which is to respond.
The group address that is used to read out the object status must be placed at the
transmission point of the bus device that should be read out since the response
telegram uses this group address.
Home and Building Management Systems KNX Association
Flags Flags_E1212b.doc 6/13

