Device Address For The Qax910 Central Apartment Unit - Siemens Synco 700 Series Basic Documentation

Introduction
Note
Caution!
Bus power supply
Note
Device address
Building Technologies
HVAC Products
5.5 Device address for the QAX910 central
apartment unit
The QAX910 central apartment unit device address can be set on the associated
operating page (display) and via the programming mode of ACS Service.
The procedure for commissioning is described in the mounting and commissioning
instructions, sheet C2707 (enclosed with every device).
The central apartment unit is delivered with the "Bus power supply" set to
"On".
In addition to its own intrinsic consumption, the QAX910 central apartment unit
when set to "Bus power = On" delivers the bus power supply for one OZW771
central communication unit or for the OCI700 service interface.
If other devices are installed on the same line, the central apartment unit must be
set to "Bus power supply = Off". The path for these settings is:
Main menu > Commissioning > Bus communication
Commissioning
Basic configuration...
RF connections...
Device list...
Bus communication...
Basic settings > Bus power supply
Basic settings
Device address
Bus power supply
Programming mode Off
Bus power supply
Off
On
If "Bus power supply = Off" the central apartment unit receives the required bus
power from a decentral or central bus power supply, i.e. the power consumption of
the central apartment unit must be included in calculations (see section 2.2.2).
The QAX910 central apartment unit is factory-set with device address 255. For
communication via KNX, this device address must be modified.
If there are no couplers or IP routers, the factory-set area/line address 0.2 is used.
Basic documentation: Communication via the KNX bus
Device addresses via ACS
255
On
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CE1P3127en
30.08.2007