Basic Documentation

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Siemens Bus operator unit RMZ792 Series B CE1P3113en
Building Technologies 6 "Commissioning" menu 07.07.2011
6.1.2 Manual address allocation
Manual address allocation is sensible when the bus operator unit has a fixed location in
the KNX network, and if the address has already been defined and is known from the
network plan.
• Area, line and device address are entered manually by the operator.
• The bus operator unit gets the subnetwork address (SNA, comprising area and line)
from the higher line coupler in the event of change to either area or line. If the line
coupler supplies the SNA, the device assumes the line coupler's SNA and overwrites
any existing manual settings. The manually entered value is accepted if no SNA is
received.
• The setting value is reset to the previous value if the desired device address is used
by another device.
6.1.3 Allocate addresses using ETS
Allocating addresses using ETS (Engineering Tool Software) makes sense if this tool
is used in general to allocated addresses in the KNX network.
• Area, line, and device address are preset in ETS.
• On the bus operator unit, set the Programming mode to On.
• Load the device address using ETS.
• Programming mode automatically returns to Off after an address is allocated to the bus
operator unit.
6.1.4 Troubleshooting
Faults Cause / Solution
Device address has value 255, i.e. no
active communication.
Set the device address to a value
between 1 and 252 (automatic search or
manual entry).
No communication with other bus
devices.
The subnetwork addresses (area and
line) of the line couplers and/or bus
devices do not match.
Check the subnetwork addresses and
reallocate as needed.
Subnetwork address (SNA) not assumed
from higher line coupler.
There is no higher line coupler or the line
coupler is configured to not send the
SNA to the line.
Configure the line coupler accordingly or
manually specify the SNA.
Fault status message
6001 >1 identical bus address
The network contains several bus
devices with identical device address.
Correct the device addresses on the
related devices.
Possible cases