Fault And Alarms Function On Knx - Siemens RDG200KN Basic Documentation

4.12.8 Fault and alarms function on KNX

Priority of alarms
Fault transmission
A6V11545892_en--_a
A fault is sent on the bus in the event of a fault (e.g., digital fault input, dewpoint,
communication configuration, etc.).
An RDG2..KN room thermostat monitors the bus and sends a 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
Fault state
Fault information (internal information)
The table below shows error codes and default alarm texts.
Priorities Fault
- No fault
1 Bus power
supply
2)
Device
2
address error
3 Condensation
4 External fault
input X1
External fault
5
input X2
External fault
6
input U1
Clean filter
7
reminder
Default alarm texts are stored in the thermostat's non-volatile memory and can
1)
be adjusted using the ACS commissioning tool.
This error is not sent over the bus (because there is no bus, not enough bus
2)
power supply, bus is overloaded or bus signal is distorted).
● Priority order is #1...7
● External faults #4...6: If faults are active, the display shows AL1, AL2, AL3,
alternating. Only the fault with the highest priority is sent over the bus.
A supervisor alarm system may command the thermostat to stop sending faults to
the bus via the communication object "Fault transmission" (disable/enable).
This has no impact on the local display of faults.
After a timeout of 48 hours, the sending of faults is automatically enabled again.
LTE-Mode
Alarm info (error code + internal
information)
Alarm text (default text can be edited
with ACS tool)
Thermostat Fault information on bus
Display Error code
--- 0
5000
BUS
Addr 6001
4930
COND
9001
AL1
AL2 9002
AL3 9003
3911
FIL
Functions
KNX communications
Default fault Text
text adjustable
No fault ✓
No bus ---
power
supply
>1 id device
---
address
Condensati
✓
on in the
room
Fault input 1 ✓
Fault input 2 ✓
Fault input 3 ✓
Dirty filter ✓
99 | 150
4
1)