Basic Documentation
Table Of Contents
- 1 About this document
- 2 Overview
- 3 Notes
- 4 Functions
- 4.1 Temperature control
- 4.2 Operating modes
- 4.3 Room temperature setpoints
- 4.4 Application overview
- 4.5 Power supply selection for RDG200KN
- 4.6 Additional functions
- 4.7 Control sequences
- 4.7.1 Sequence overview (setting via P001)
- 4.7.2 Application mode
- 4.7.3 2-pipe fan coil unit
- 4.7.4 2-pipe fan coil unit with electric heater
- 4.7.5 2-pipe fan coil unit with radiator or floor heating
- 4.7.6 2-stage heating and cooling
- 4.7.7 4-pipe fan coil unit
- 4.7.8 4-pipe fan coil unit with electric heater
- 4.7.9 Chilled/heated ceiling and radiator applications
- 4.7.10 Compressor applications
- 4.7.11 Applications with external AQR sensor or QMX room operator unit
- 4.7.12 Setpoints and sequences
- 4.8 Control outputs
- 4.9 Fan control
- 4.10 Multifunctional input, digital input
- 4.11 Handling system faults
- 4.12 KNX communications
- 4.12.1 S-Mode
- 4.12.2 Master/slave configuration in KNX S-Mode
- 4.12.3 LTE-Mode
- 4.12.4 Zone addressing in LTE-Mode (with Synco)
- 4.12.5 Master/slave configuration in LTE-Mode
- 4.12.6 Example of heating and cooling demand zones
- 4.12.7 Send heartbeat and receive timeout
- 4.12.8 Startup
- 4.12.9 Heating and cooling demand
- 4.12.10 Fault and alarms function on KNX
- 4.13 Communication objects
- 4.14 Communication objects (LTE-Mode)
- 4.15 Control parameters
- 5 Supported KNX tools
- 6 Connection
- 7 Technical data
- 8 Dimensions
- Index
Functions
Communication objects
4
A6V11545892_en--_b
121 | 170
Obj
Object name
Function
Type/
length
Flags
Obj
Object name
Function
Type/
length
Flags
35
Extended comfort
mode status
ON
OFF
1.011
1 bit
CRT
48
Application mode
HVAC control
mode
20.105
1 byte
CWU
Indicates the status of Comfort mode extension of master.
0
Auto (default)
Heating and/or cooling
36
External room
temperature
value
Temperature
9.001
2 bytes
CWU
1
Heat
Heating only
2
Morning warmup*
Heating only
The thermostat receives and works with the room temperature
from an external sensor.
3
Cool
Cooling only
5
Precool*
Cooling only
37
Built-in room
temperature
value
Temperature
9.001
2 bytes
CRT
6
OFF
Neither heating nor cooling
8
Emergency heat*
Heating only
The value of the room temperature measured via built-in sensor or
external sensor is available on bus.
9
Fan only
Fan runs at high speed
* Function handled like Heat (1) or Cool (3)
38
Frost alarm
No alarm
Alarm
1.005
1 bit
CRT
49
Dew point alarm
No alarm
Alarm
1.005
1 bit
CWU
Sends an alarm if the room temperature is below the frost alarm
setting.
Indicates the status of dew point operation.
39
Heat alarm
No alarm
Alarm
1.005
1 bit
CRT
50
Enable fan
command value
Enable
Disable
1.003
1 bit
CWU
Sends an alarm if the room temperature is above the heat alarm
setting.
40
42
44
X1: Temperature
X2: Temperature
U1: Temperature
Temperature
9.001
2 bytes
CRT
Set fan mode to Auto (disable) or Manual (enable) by a KNX
control unit. If Manual, the value received on Fan command value
(52) will be used to command the fan speed.
Default: Enable
The last interaction wins – either from the local fan mode button or
via bus.
Indicate the values of the temperature sensors connected to the
local inputs X1/X2/U1
41
43
45
X1: Digital
X2: Digital
U1: Digital
OFF
ON
1.001
1 bit
CRT
51
Fan operation
Auto
Manual
1.001
1 bit
CRT
Indicate the status of the digital inputs (adjusted by
P151/P154/P156) including considering of operating action
Indicates the status of the fan mode: Auto (0) or Manual (1).
52
Fan speed value
0...100 %
5.001
1 byte
CWU
46
Heating/Cooling
changeover
(receive)
Heating: 1
Cooling: 0
1.100
1 bit
CWU
The fan can be set to a specified speed by a KNX control unit
when manual fan operation is enabled.
Changeover information received via bus.
Default: Current mode before power down.
The same function is also available via local multifunctional input
X1/X2/U1 (P150, P153, P155).
Only one input source must be used, either local input X1/X2/U1or
KNX bus.
Speed
Fan command value
(physical KNX value)
1
1...33 % (1…85)
2
34…67 % (86...170)
3
68…100 % (171…255)
47
Heating/Cooling
mode status
(send)
Heating: 1
Cooling: 0
1.100
1 bit
CRT
Fan speed "0" is not supported by the thermostat and the fan
speed will remain unchanged.
Sends the current heating or cooling mode of the thermostat.