Topology Of The Bus System - eQ-3 HomeMatic HMW-IO-12-Sw14-DR Montage- Und Bedienungsanleitung

General information on bus system

5.2 Topology of the bus system

The HMW components should always be mounted in
groups of sub-divisions to provide a better overview.
The number of sub-divisions that is appropriate de-
pends on the type and size of the project and is to be
defined accordingly. Installing at least one sub-division
on each level is recommended. Larger buildings may
require planning several sub-divisions per level (e.g.
separate for every floor). All load and control wiring
should also be run in a star format to the respective
subdivisions.
The power supply is done through a DIN rail power
supply HMW-Sys-PS7-DR or another 24 V power
supply dimensioned according to the number and total
current consumption of all existing modules in the
respective sub-division. If central programming and
control is to be done through the Homematic central
control unit, the HMW bus lines for the individual sub-
divisions and the lines coming from the control PC or
a central control unit should be run together in a room
according to available space in order to achieve a se-
paration of the individual bus segments and to simplify
troubleshooting if necessary. Normally, this is the room
in which the Homematic system central control unit is
installed.
30