Siemens KNX RDG400KN Basic Documentation page 63

Obj Object name
Indicates the position of the cooling actuator of the first stage.
E.g. single-duct with h/c coil application: Output of the cooling coil
28 Enable electric
heater
An electric heater can be disabled with this communication object
(e.g. to meet tariff regulations).
The same function is also available via local multifunctional input
X1-D1 (P38, P42).
Only one input source must be used, either local input X1/D1or
KNX bus.
29 Heating/cooling
changeover
Changeover information transmitted via bus. Only available with
application "Single-duct with heating/cooling coil".
Default: Current mode before power down.
The same function is also available via local multifunctional input
X1-D1 (P38, P42).
Only one input source must be used, either local input X1/D1or
KNX bus.
30 Supply air
temperature
The supply air temperature sent by the supply air controller
indicates whether cold or hot air is supplied (for VAV changeover).
The controller determines the necessity to open or close the air
damper according to the supply air temperature, the room tempe-
rature setpoint, and the current room temperature.
The same function is also available via local multifunctional input
X1-D1 (P38, P42).
Only one input source must be used, either local input X-D1or KNX
bus.
31 Application mode
0 Auto (default)
1 Heat
2 Morning warmup*
3 Cool
4 Night purge
5 Precool*
6 OFF
8 Emergency heat*
9 Fan only
* Function handled like Heat (1) or Cool (3)
32 X1: Temperature
Indicates the values of the temperature sensors connected to the
local inputs X1
33 X1: Digital
37 D1: Digital
Indicate the status of the digital inputs (adjusted via P39...P43)
including considering the operating action
36 U1: 0..10V
Siemens
Building Technologies
Function Type/length
Enable/ 1.003
disable 1 bit
Heating/ 1.100
cooling 1 bit
Temp. 9.001
value 2 Byte
HVAC 20.105
control 1 Byte
mode
Heating and/or cooling
Heating only
Heating only
Cooling only
Open air damper fully
Cooling only
Neither heating nor cooling
Heating only
Open air damper fully (= night
purge)
Temp. 9.001
value 2 Byte
ON 1.001
OFF 1 bit
0...100% 5.001
8 bit
RDG400KN,RDG405KN Basic documentation
Error! Use the Home tab to apply Überschrift 1 to the text that you want to appear here. 2019-04-12
Flags DC 0...10 V at input U1 is indicated as a value 0...100%
38 Outside
temperature
CWU The outside temperature acquired by a KNX sensor can be
displayed on the thermostat, if P07 "Additional user information" is
set = 2 (outside temperature).
The following objects are only available on RDG405KN
21 Room temperature
(RDG405KN)
CWU
The value of the room temperature measured via built-in or
external sensor is available on bus when this communication
object is set to Transmit.
By setting the object to Receive, the thermostat receives and
works with the room temperature from an external sensor
39 Presence Sensor
Room operating mode : Presence detector
Switch the device to Comfort mode
40 Room tempera-
CWU
ture: economy
heating setpoint
Communication object to adjust the Economy heating setpoint
used by the thermostat (see section 3.3.2). It directly changes the
value of the local parameter "Economy setpoint" P11.
S-Mode object needs to be enabled by setting Room temp.:
Economy setpoints to as group object in ETS.
The Economy setpoint is stored in EEPROM. The service life of
the EEPROM depends on the number of write cycles. Never write
this communication object cyclically.
41 Room tempera-
CWU
ture: Economy
cooling setpoint
Communication object to adjust the Economy cooling setpoint
used by the thermostat (see section 3.3.2). It directly changes the
value of the local parameter "Economy setpoint" P12.
S-Mode object needs to be enabled by setting Room temp.:
Economy setpoints to as group object in ETS.
The Economy setpoint is stored in EEPROM. The service life of
the EEPROM depends on the number of write cycles. Never write
this communication object cyclically.
42 Supply air : limit
value min (%)
The output signal for the air flow can be limited to a minimum
value (P63)
43 Supply air: Limit
CRT
value max. (%)
The output signal for the air flow can be limited to a maximal value
(P64)
44 IAQ: CO
CRT
concentration
CO concentration in ppm.
2
Range :0...5000 ppm
CRT
Temp. 9.001
value 2 Byte
Temp. 9.001
value 2 Bytes
1.018
1 bit
Temp. 9.001
value 2 bytes
Temp. 9.001
value 2 bytes
0...100% 5.001
1 Byte
0...100% 5.001
1 Byte
ppm 2 bytes
2
value
CWU
CRT
CWU
CWU
CWU
CWU
CWU
CWT
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