For internal use only
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Siemens
KNX bus communications
CE1P3127en
Building Technologies
KNX and Synco
2013-04-08
1.3.3 Device address
As described above, the network address consists of a combination of the area,
line and device address, for example 0.2.10, where 0 stands for the area, 2 for the
line and 10 for the device address.
3
1
2
7
Z
3
1
0.2.254
0.2.1
0.2.2
0.2.10
Konnex TP1
0.2.150
0.2.252
0.2.11
0.2.20
Device addressing must be planned at the design engineering stage. Note the
following points when assigning addresses:
Each device address may be allocated only once within an area and a line.
Device addresses in the range 1 to 251 must be used for the maximum 64 bus
devices on a line (the same applies on a main line). Addresses 0, 150, 252, 254
and 255 are reserved for the following:
0 is used in each area or each line for the area or line coupler respectively.
150 is the factory-set device address for the OZW772 web server (device
address 150 can be modified).
252 is used to connect the RMZ792 bus operator unit, i.e. the bus operator unit
uses this address if it is free; otherwise it starts at 252 and looks for the next
lower unused address.
254 is used to connect the ACS790 software on PC/laptop, i.e. the OCI700.1
service tool adopts this address if free, or starts at 254 and looks for the next
lower unused address.
255 is the factory-set device address of the Synco bus devices (see the notes
below).
The factory-set address 255 in the Synco bus devices prevents communication
problems in the commissioning phase. This is because devices with this address
do not send any data. However, they can be controlled manually, and can receive
the new device address setting, for example.
The device addresses of the Synco 700 RM… controllers can be set with the
RMZ790 and RMZ791 operator units (see Section 4.2) or with the ACS790
software.
Remember not to use device addresses 150, 252 and 254 when addressing the
bus devices.
Device identification
Device addressing
Notes
