Siemens RDG20 KN Series Basic Documentation page 132

Functions
4
Communication objects
Obj Object name
75 Hum. Control Inactive
mode Humidification
Dehumidification
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
76 Enable electric Enable/disable
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/X2/U1 (P150, P153, P155).
Only one input source must be used, either local input X1/X2/U1or
KNX bus.
77 Built-in room I/O
relative humidity
value [%r.h.]
The value of the room humidity measured via built-in sensor is
available on bus.
78 External room I/O
relative humidity
value [%r.h.]
The thermostat receives and works with the relative humidity value
from an external sensor.
79 Room rel. I
humidity:
Setpoint high
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.
Room rel.
80 I
humidity:
Setpoint low
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.
81 Reset the Energy No action
efficiency status Reset
(Green leaf)
Resets the settings to green leaf.
82 Energy efficiency Green
status / Green Red
Leaf
Indicates current status of green leaf.
132 | 180
Function Type/ Flags
length
20.115 CRT
1 byte
1.003 CWU
1bit
9.007 CRT
2 bytes
9.007 CWU
2 bytes
9.007 CWU
2 bytes
9.007
CWU
2 bytes
1.017 CWU
1 bit
1.006 CRT
1 bit
Obj Object name
83 Enable or disable Disable
Leaf indication Enable
Enables or disables the leaf (green or red) indication.
84 Keypad: Lock fan Lock
speed Unlock
Locks or unlocks the fan operation keypad in current fan speed.
85 Keypad: Lock fan Lock
speed in "auto"
Unlock
mode
Locks or unlocks the fan operation keypad in "auto" speed.
86 Keypad: Lock the Lock
setpoint shift Unlock
Locks or unlocks the setpoint shift keypad.
87 Keypad: Lock the Lock
operating mode Unlock
Locks or unlocks the operating mode keypad.
Room operating
Unoccupied
88
mode: Presence
Occupied
detector
Status of the presence mode of the device, from KNX bus or from
universal inputs X1, X2 or U1.
89 Room operating Close
mode: Window
Open
contact
Window state of the device, from KNX bus or from universal inputs
X1, X2 or U1.
90 Room temp: Temperature
Current cooling
setpoint (send)
Communication object adjusts the current cooling setpoint used by
the thermostat (see Setting and adjusting setpoints [➙ 38]).
S-Mode object needs to be enabled by setting Room temp:
Current setpoint to as group object in ETS.
Room temp:
91 Temperature
Current heating
setpoint (send)
Communication object adjusts the current heating setpoint sent by
the thermostat (see Setting and adjusting setpoints [➙ 38]).
S-Mode object needs to be enabled by setting Room temp:
Current setpoint to as group object in ETS.
Room temp:
92 Temperature
Current heating
setpoint (receive)
Communication object adjusts the current heating setpoint
received by the thermostat from bus (see Setting and adjusting
setpoints [➙ 38]).
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.
Function Type/ Flags
length
1.003 CWU
1 bit
1.002 CWU
1 bit
1.002 CWU
1 bit
1.002 CWU
1 bit
1.002 CWU
1 bit
1.018
CRT
1 bit
1.019 CRT
1 bit
9.001 CRT
2 bytes
9.001
CRT
2 bytes
9.001
CWU
2 bytes
A6V11545892_en--_c