Siemens RDF870KN Series Manual page 25

Description of communication objects
Object no. Object name
1 Fault information
Common alarm output. If an alarm occurs, the alarm number is transmitted.
2 Fault state
Common alarm output. If an alarm occurs, the alarm flag is set.
3 Enable alarm info
A supervisor alarm system can disable the broadcasting of alarms by the devices. This has no impact on the
local display of alarms. After a timeout of 48 hours, the sending of faults is automatically enabled again.
4 Room operating mode user:
Preselection
Controls the room operating mode selection of the room controller/room unit via bus.
The command can also be submitted as three 1-bit communication objects (5...7). The last interaction wins –
either from local operating mode button or via bus.
Note: 8-bit and 1-bit object available, selectable by using parameter in ETS
Operating mode user: Preselection
- Comfort
5 - Eco
6 - Protection
7
Switch room operating mode to either Comfort, Economy or OFF.
The last interaction wins – either from local operating mode button or via bus.
Note: 8-bit and 1-bit object available, selectable by using parameter in ETS
8 Room operating mode: State
Effective room operating mode used by the thermostat (considering timer, user selection, etc.) This state
information is available via one 8-bit enumeration or three 1-bit communication objects (9...11).
Note: 8-bit and 1-bit object available, selectable by using parameter in ETS
Room operating mode:
9 - State Comfort
10 - State Eco
11 - State Protection
Corresponding communication object sends "True"
Note: 8-bit and 1-bit object available, selectable by using parameter in ETS
12 Room temperature
Value of the room temperature.
Note: The room temperature value is decided by priority if all value types exist. (Built in > Remote)
13 Remote: Indoor temperature
Remote indoor temperature sensor value
14 Outdoor temperature
Value of the outside temperature is received.
Siemens
Smart Infrastructure
Function Type/length
Alarm information 219.001
6 Byte
Faulty/normal 1.005
1 bit
Enable/disable 1.003
1 bit
Comfort 20.102
Economy 1 Byte
OFF
ON 1.001
1 bit
OFF
Comfort 20.102
Economy 1 Byte
Off
ON 1.001
OFF 1 bit
Temperature value 9.001
2 Bytes
Temperature value 9.001
2 Bytes
Temperature value 9.001
2 Bytes
Flags
CT
CT
CWU
CWTU
CW
CRT
CT
CRT
CWU
CRT
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A6V11439454_en--_d
2021-03-31