Alarm; 10.13.1 S-Mode - Siemens Desigo RXB Technical Manual

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Note
Siemens
Building Technologies
10.13

Alarm

Alarming works differently in S-mode and LTE mode.
RXB controller support different alarms:
• PPS2 fault
• Room temp. sensor
error
• Room air condensation

10.13.1 S-mode

In S-mode, the above alarms are summarized and provided as common alarm .
The alarm message is mapped to the following S-mode output communication object:
Common alarm (output communication object)
Flags Type
R W C T U
1 0 1 1 0 1.005
DPT_Alarm
As soon as the cause of the alarm ceases to exist, the alarm message disappears.
In addition, the output Alarm info provides detailed information:
Alarm info (output communication object)
Flags Type
R W C T U
1 0 1 1 0 219.001
DPT_AlarmInfo
The Alarm info output can be enabled or disabled via another communication object
(this also affects the LTE mode fault signal):
Enable alarm info (input communication object)
Flags Type
R W C T U
0 1 1 0 0 1.003
DPT_Enable
RXB (KNX) Applications library
General / central functions
If the connection to the room unit is faulty at the room
controller (via PPS2 interface), the information is
transmitted with this alarm message.
Sensor interruption or short.
No valid room temperature.
Risk of condensation if temperature drops below
dewpoint temperature.
Send heartbeat
Yes
Send heartbeat
Yes
Receive timeout
Yes (fixed 42 hours) 0 = Disabled / Off
CLC and RAD description of functions for CC-02 CM110384en_03
States
0 = No alarm
1 = Alarm
Info
See Konnex specification
States
1 = Enabled / On
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28 Feb 2009