Data Sheet for Product

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Siemens RDF880KN… A6V11282546_en--_e
Smart Infrastructure Touch Screen Flush-mount Room Thermostats with KNX Communications 2021-02-26
Obj.
Object Name
Function
Type
Length
CRWTU
Descriptions / Selections:
visibility depends on DIP switch setting
35
Fan speed:
preselection
percentage
(0..100%)
5.001
1 byte
CRWTU
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)
OFF
0% (0)
1
33% (84 )
2
66% (186)
3
100% (255)
36
Fan speed
counter pulses
(0..255)
5.010
1 byte
CRT
CONTROL: use for DIP switch Setting → 2: VRF
It is a command to set the fan 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
37
Fan speed status
counter pulses
(0..255)
5.010
1 byte
CWU
STATUS: use for DIP switch Setting → 2: VRF
The value of fan speed received will be set and displayed on HMI.
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
38
VRF Operating Mode
HVAC
control mode
20.105
1 byte
CRT
CONTROL: use for DIP switch Setting → 2: VRF
It is a command to set the VRF operating mode for VRF equipment.
0 - Auto; 1 - Heat; 3 - Cool; 9 - Fan; 14 - Dehumidify
39
X1: Temperature
temperature
value (°C)
9.001
2 bytes
CRT
CONTROL: all DIP switch Settings
Indicate the values of the temperature sensors connected to the local inputs
X1/X2 (P38/P40).
41
X2: Temperature
temperature
value (°C)
9.001
2 bytes
CRT
40
X1: Digital
switch
1.001
1 bit
CRT
CONTROL: all DIP switch Settings
Indicates the logic state of the digital inputs (P39 for X1, P41 for X2).
42
X2: Digital
switch
1.001
1 bit
CRT
43
Control on/off
switch
1.001
1 bit
CRT
CONTROL: use for DIP switch Setting → 2: VRF
It is a command to turn on and off the VRF equipment.
0 - Off; 1-On
44
Control vane up/down
position
counter pulses
(0..255)
5.010
1 byte
CRT
CONTROL: use for DIP switch Setting → 2: VRF
It is a command to set the vane position of the VRF equipment.
0 – Auto; 1 - Pos1; 2 - Pos2; 3 - Pos3; 4 - Pos4; 5 - Pos5; 6 - Pos6; 7 - Pos7; 8 - Pos8;
9 - Pos9; 10 - Pos10
45
Control vane up/down
swing
boolean
1.002
1 bit
CRT
CONTROL: use for DIP switch Setting → 2: VRF
It is a command to set the vane to a stop position or auto swing.
The vane position depends on the object, Control vane up/down position (44).
0 - Stop; 1 – Swing
46
Control eco mode
start/stop
1.01
1 bit
CRT
CONTROL: use for DIP switch Setting → 2: VRF
It is a command to enable or disable the ECO mode of the VRF equipment.
0 - Stop; 1 – Start
47
Status on/off
Switch
1.001
1 bit
CWU
STATUS: use for DIP switch Setting → 2: VRF
A value is received from a KNX control device to turn on and off the VRF
equipment. 0 - Off; 1-On
48
Status vane up/down
position
counter pulses
(0..255)
5.010
1 byte
CWU
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
equipment.
0 – Auto; 1 - Pos1; 2 - Pos2; 3 - Pos3; 4 - Pos4; 5 - Pos5; 6 - Pos6; 7 - Pos7; 8 - Pos8;
9 - Pos9; 10 - Pos10
49
Status vane up/down
swing
boolean
1.002
1 bit
CWU
STATUS: use for DIP switch Setting → 2: VRF
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
50
Status eco mode
Switch
1.001
1 bit
CWU
STATUS: use for DIP switch Setting → 2: VRF
A value is received from a KNX control device to set the VRF equipment in ECO
mode. 0 - Off; 1-On
51
Room relative humidity
Humidity %
9.007
2 bytes
CRT
CONTROL: all DIP switch Settings
It is the command to send out for the current value of relative humidity.
53
Room temp: Economy
heating setpoint
temperature
value (°C)
9.001
2 bytes
CWU
STATUS: all DIP switch Settings
A value is received from a KNX control device to update parameter P11.
55
Application selection:
State
counter pulses
(0..255)
5.010
2 bytes
CR
CONTROL: all DIP switch Settings
A value is required to be read out from RDF880KN... for the current DIP SW setting.
Refer to dip switch position selection.
1 - UFH only; 2 - VRF only; 3 - both VRF & UFH
56
Sub application:
Preselection
counter pulses
(0..255)
5.010
1 byte
CRT
CONTROL: use for DIP switch Setting → 3: BOTH
It is a command to send out for the current sub selection below within a combined
UFH and VRF/VRF unit.
1 - UFH only; 2 - VRF only; 3 - both VRF & UFH
57
Sub application:
State
counter pulses
(0..255)
5.010
1 byte
CWU
STATUS: use for DIP switch Setting → 3: BOTH
A value is received from a KNX control device for the current sub selection below
within a combined UFH and VRF/VRF unit.
1 - UFH only; 2 - VRF only; 3 - both VRF & UFH
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.