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Obj.
Object Name
Fan speed:
35
preselection
36
Fan speed
37
Fan speed status
38
VRF Operating Mode
39
X1: Temperature
41
X2: Temperature
40
X1: Digital
42
X2: Digital
43
Control on/off
Control vane up/down
44
position
Control vane up/down
45
swing
46
Control eco mode
47
Status on/off
Status vane up/down
48
position
Status vane up/down
49
swing
50
Status eco mode
51
Room relative humidity
Room temp: Economy
53
heating setpoint
Application selection:
55
State
Sub application:
56
Preselection
Sub application:
57
State
C: Communication; R: Read; W: Write; T: Transmission; U: Update
Notes: The current RDF880KN... is based on a Floor Heating Controller with additional VRF HMI. Therefore, to turn on the controller, effectively, it is to turn on the UFH application.
1.
In a UFH application selected via DIP switch setting or remote configuration, the operations are identical to RDD810KN/NF while all VRF relevant S-Mode objects are invisible.
2.
In a VRF application selected via DIP switch setting or remote configuration, UFH application will not be turned ON remotely via any KNX control devices or locally via HMI.
3.
In a combined application (both UFH and VRF) selected via DIP switch setting or remote configuration, the object Sub Application (56, 57) can be used by any KNX control devices
to do remote selection of applications (UFH only, VRF only or UFH & VRF) required. But the objects: Time Switch/Schedule (12, 13, 14, and 15) or ECO mode (10, 18) via any KNX
control devices remotely will turn on/off both VRF and UFH. Therefore, it is not recommended to use objects: Time Switch/Schedule (12, 13, 14, and 15) or ECO mode (10, 18).
*) If object Fan operation (33) is used together with object Fan speed (36), the value "0 – Auto" of object Fan speed (36) cannot be used. If these two objects are not used together, the
value "0 – Auto" can be used.
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Siemens
Smart Infrastructure
Function
Type
Length
percentage
5.001
1 byte
(0..100%)
counter pulses
5.010
1 byte
(0..255)
counter pulses
5.010
1 byte
(0..255)
HVAC
20.105
1 byte
control mode
temperature
9.001
2 bytes
value (°C)
temperature
9.001
2 bytes
value (°C)
switch
1.001
1 bit
switch
1.001
1 bit
switch
1.001
1 bit
counter pulses
5.010
1 byte
(0..255)
boolean
1.002
1 bit
start/stop
1.01
1 bit
Switch
1.001
1 bit
counter pulses
5.010
1 byte
(0..255)
boolean
1.002
1 bit
Switch
1.001
1 bit
Humidity %
9.007
2 bytes
temperature
9.001
2 bytes
value (°C)
counter pulses
5.010
2 bytes
(0..255)
counter pulses
5.010
1 byte
(0..255)
counter pulses
5.010
1 byte
(0..255)
RDF880KN.. Basic documentation
Descriptions / Selections:
CRWTU
visibility depends on DIP switch setting
CONTROL/STATUS: use for DIP switch Setting → 2: VRF
It is a command to set the fan speed (ECM) – depends on value of P53.
e.g. if P53 = 3, indicates the current fan speed as a value 0...100%
Speed
Fan output (physical KNX value)
CRWTU
OFF
0%
1
33%
2
66%
3
100%
CONTROL: use for DIP switch Setting → 2: VRF
It is a command to set the fan speed – depends on value of P53.
CRT
0 – Auto; 1 - Speed 1; 2 - Speed 2; 3 - Speed 3;4 - Speed 4; 5 - Speed 5; 6 - Speed 6;
7 - Speed 7
STATUS: use for DIP switch Setting → 2: VRF
The value of fan speed received will be set and displayed on HMI.
CWU
Speed depends on value of P53:
0 – Auto; 1 - Speed 1; 2 - Speed 2; 3 - Speed 3;4 - Speed 4; 5 - Speed 5;
6 - Speed 6; 7 - Speed 7
CONTROL: use for DIP switch Setting → 2: VRF
CRT
It is a command to set the VRF operating mode for VRF equipment.
0 - Auto; 1 - Heat; 3 - Cool; 9 - Fan; 14 - Dehumidify
CONTROL: all DIP switch Settings
CRT
Indicate the values of the temperature sensors connected to the local inputs
CRT
X1/X2 (P38/P40).
CRT
CONTROL: all DIP switch Settings
Indicates the logic state of the digital inputs (P39 for X1, P41 for X2).
CRT
CONTROL: use for DIP switch Setting → 2: VRF
CRT
It is a command to turn on and off the VRF equipment.
0 - Off; 1-On
CONTROL: use for DIP switch Setting → 2: VRF
It is a command to set the vane position of the VRF equipment.
CRT
0 – Auto; 1 - Pos1; 2 - Pos2; 3 - Pos3; 4 - Pos4; 5 - Pos5; 6 - Pos6; 7 - Pos7; 8 - Pos8; 9
- Pos9; 10 - Pos10
CONTROL: use for DIP switch Setting → 2: VRF
It is a command to set the vane to a stop position or auto swing.
CRT
The vane position depends on the object, Control vane up/down position (44).
0 - Stop; 1 – Swing
CONTROL: use for DIP switch Setting → 2: VRF
CRT
It is a command to enable or disable the ECO mode of the VRF equipment.
0 - Stop; 1 – Start
STATUS: use for DIP switch Setting → 2: VRF
CWU
A value is received from a KNX control device to turn on and off the VRF equipment.
0 - Off; 1-On
STATUS: use for DIP switch Setting → 2: VRF
A value is received from a KNX control device to set the vane position of the VRF
CWU
equipment.
0 – Auto; 1 - Pos1; 2 - Pos2; 3 - Pos3; 4 - Pos4; 5 - Pos5; 6 - Pos6; 7 - Pos7; 8 - Pos8; 9
- Pos9; 10 - Pos10
STATUS: use for DIP switch Setting → 2: VRF
CWU
A value is received from a KNX control device to set the vane of the VRF equipment
to stop or auto swing. 0 - Stop; 1 – Swing
STATUS: use for DIP switch Setting → 2: VRF
CWU
A value is received from a KNX control device to set the VRF equipment in ECO
mode. 0 - Off; 1-On
CONTROL: all DIP switch Settings
CRT
It is the command to send out for the current value of relative humidity.
STATUS: all DIP switch Settings
CWU
A value is received from a KNX control device to update parameter P11.
CONTROL: all DIP switch Settings
A value is required to be read out from RDF880KN... for the current DIP SW setting.
CR
Refer to dip switch position selection.
1 - UFH only; 2 - VRF only; 3 - both VRF & UFH
CONTROL: use for DIP switch Setting → 3: BOTH
It is a command to send out for the current sub selection below within a combined
CRT
UFH and VRF/VRF unit.
1 - UFH only; 2 - VRF only; 3 - both VRF & UFH
STATUS: use for DIP switch Setting → 3: BOTH
A value is received from a KNX control device for the current sub selection below
CWU
within a combined UFH and VRF/VRF unit.
1 - UFH only; 2 - VRF only; 3 - both VRF & UFH
(0)
(84 )
(186)
(255)
A6V12318532_en--_a
2021-03-22
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