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
123 | 170
Obj
Object name
Function
Type/
length
Flags
Obj
Object name
Function
Type/
length
Flags
75
Hum. Control
mode
Inactive
Humidification
Dehumidification
20.115
1 byte
CRT
83
Enable or disable
Leaf indication
Disable
Enable
1.003
1 bit
CWU
Indicates the mode of the humidity control function:
0 = inactive
1 = humidification; relative humidity lower than setpoint low P026
2 = dehumidification; relative humidity higher than setpoint high
P024
3…255 = not used
Enables or disables the leaf (green or red) indication.
84
Keypad: Lock fan
speed
Lock
Unlock
1.002
1 bit
CWU
Locks or unlocks the fan operation keypad in current fan speed.
76
Enable electric
heater
Enable/disable
1.003
1bit
CWU
85
Keypad: Lock fan
speed in "auto"
mode
Lock
Unlock
1.002
1 bit
CWU
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/X2/U1 (P150, P153, P155).
Only one input source must be used, either local input X1/X2/U1or
KNX bus.
Locks or unlocks the fan operation keypad in "auto" speed.
86
Keypad: Lock the
setpoint shift
Lock
Unlock
1.002
1 bit
CWU
Locks or unlocks the setpoint shift keypad.
77
Built-in room
relative humidity
value [%r.h.]
I/O
9.007
2 bytes
CRT
87
Keypad: Lock the
operating mode
Lock
Unlock
1.002
1 bit
CWU
Locks or unlocks the operating mode keypad.
The value of the room humidity measured via built-in sensor is
available on bus.
88
Room operating
mode: Presence
detector
Unoccupied
Occupied
1.018
1 bit
CRT
78
External room
relative humidity
value [%r.h.]
I/O
9.007
2 bytes
CWU
Status of the presence mode of the device, from KNX bus or from
universal inputs X1, X2 or U1.
The thermostat receives and works with the relative humidity value
from an external sensor.
89
Room operating
mode: Window
contact
Close
Open
1.019
1 bit
CRT
79
Room rel.
humidity:
Setpoint high
I
9.007
2 bytes
CWU
Window state of the device, from KNX bus or from universal inputs
X1, X2 or U1.
Communication object adjusts the humidity setpoint high used by
the thermostat. It changes the value of P024.
S-Mode object must be enabled by setting "Humidity setpoints"
to "as group object" in ETS.
The range is (0), P026 (min. 20 %)…90 %.
The humidity maximum setpoint is stored in EEPROM. The
service life of the EEPROM depends on the number of write
cycles. Never write this communication object cyclically.
90
Room temp:
Current cooling
setpoint (send)
Temperature
9.001
2 bytes
CRT
Communication object adjusts the current cooling setpoint used by
the thermostat (see Setting and adjusting setpoints [➙ 36]).
S-Mode object needs to be enabled by setting Room temp:
Current setpoint to as group object in ETS.
80
Room rel.
humidity:
Setpoint low
I
9.007
2 bytes
CWU
91
Room temp:
Current heating
setpoint (send)
Temperature
9.001
2 bytes
CRT
Communication object adjusts the humidity setpoint low used by
the thermostat. It changes the value of P026.
S-Mode object must be enabled by setting "Humidity setpoints"
to "as group object" in ETS.
The range is (0), 20 %…P024 (max. 90 %).
The humidity minimum setpoint is stored in EEPROM. The service
life of the EEPROM depends on the number of write cycles. Never
write this communication object cyclically.
Communication object adjusts the current heating setpoint sent by
the thermostat (see Setting and adjusting setpoints [➙ 36]).
S-Mode object needs to be enabled by setting Room temp:
Current setpoint to as group object in ETS.
92
Room temp:
Current heating
setpoint (receive)
Temperature
9.001
2 bytes
CWU
81
Reset the Energy
efficiency status
(Green leaf)
No action
Reset
1.017
1 bit
CWU
Communication object adjusts the current heating setpoint
received by the thermostat from bus (see Setting and adjusting
setpoints [➙ 36]).
The range is 5...40 °C .
S-Mode object needs to be enabled by setting Room temp:
Current setpoint to as group object in ETS.
Resets the settings to green leaf.
82
Energy efficiency
status / Green
Leaf
Green
Red
1.006
1 bit
CRT
Indicates current status of green leaf.