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KNX BASIC COURSE

7.3 Group address settings

Figure 23: Address settings
When designing a project, different options allow you to determine how group addresses
are to be handled.
a) Pass through Line Coupler: When a group address is set to ‘pass through’, it is
entered in the filter tables of all line couplers. It is therefore not filtered when
telegrams containing this group address do not actually belong in the line they are
sent to. You can choose this option to enable e.g. central functions that are used
in almost every line. In this case, it will not be necessary to re-program line
couplers, when the installation is extended in the future.

b) Central function: This property only has significance inside the ETS. Group
addresses that are set as such will be taken over unchanged in newly created
devices when you “Copy with options”. This will of course save you considerable
copying work since only the local group addresses will have to be newly assigned;
the central functions will be kept.

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