Siemens RDG20 KN Series - Fault and Alarms Function on KNX

Functions
KNX communications (RDG2..KN)
4
128 | 186
A6V11545892_en--_e
4.12.10 Fault and alarms function on KNX
A fault is sent on the bus in the event of a fault occur (for example, digital fault
input, Dewpoint, communication configuration, etc.).
An RDG2..KN room thermostat monitors the bus and sends its fault, if the fault has
the highest alarm priority. This ensures that the management station does not miss
any alarms.
The alarm with the highest priority is displayed first and sent over the bus if alarms
occur at the same time.
Fault transmission is different in LTE-Mode and S-Mode:
S-Mode
LTE-Mode
Fault state
Alarm info (error code + internal
information)
Fault information (internal information)
Alarm text (default text can be edited
with ACS tool)
The table below shows the error code and default alarm texts.
Priorities
Fault
Thermostat
Fault information on
bus
Display
Error code
Default
fault text
Text
adjustable
1)
-
No fault
---
0
No fault
✓
1
Bus power
supply
2)
BUS
5000
No bus
power
supply
---
2
Device
address error
Addr
6001
>1 id device
address
---
3
Condensation
COND
4930
Condensati
on in the
room
✓
4
External fault
input X1
AL1
9001
Fault input 1
✓
5
External fault
input X2
AL2
9002
Fault input 2
✓
6
External fault
input U1
AL3
9003
Fault input 3
✓