Siemens RDG20 KN Series User Manual

Functions
Communication objects (RDG2..KN)
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A6V11545892_en--_e
Obj
Object name
Function
Type/
length
Flags
21
Room temp: [P19]
Economy heating
setpoint
Temperature
9.001
2 bytes
CW
Communication object adjusts the Economy heating setpoint used
by the thermostat (Manager) (see Setting and adjusting setpoints [
➙ 40]). It directly changes the value of the local parameter
"Economy heating setpoint" P019.
The range is --- (0), 5 °C…P020 (or max. 40 °C).
S-Mode object needs to be enabled by setting Room
temperature: Economy Setpoint to as group object in ETS.
The Economy heating setpoint is stored in EEPROM. The service
life of the EEPROM depends on the number of write cycles. Never
write this communication object cyclically.
22
Room temp: [P20]
Economy cooling
setpoint
Temperature
9.001
2 bytes
CW
Communication object adjusts the Economy cooling setpoint used
by the thermostat (Manager) (see Setting and adjusting setpoints [
➙ 40]). It directly changes the value of the local parameter
"Economy cooling setpoint" P020.
The range is --- (0), P019 (min. 5 °C)…40 °C.
S-Mode object needs to be enabled by setting Room
temperature: Economy Setpoint to as group object in ETS.
The Economy cooling setpoint is stored in EEPROM. The service
life of the EEPROM depends on the number of write cycles. Never
write this communication object cyclically.
23
Room operating
mode: Window
contact
Open
Closed
1.019
1 bit
CWU
The RDG2..KN operating mode of manager is set to Protection if
value "1" (open) is received and switches back to the previous
mode for value "0" (closed). The "Window contact" is sent e.g. by
a KNX switch and has the same effect as local window contact X1,
X2 or U1 (P150, P153 or P155). Only one input source required
either a local input X1/X2/U1 or KNX bus.
24
Room operating
mode: Presence
detector
Occupied
Unoccupied
1.018
1 bit
CWU
Standard presence: The thermostat (Manager) is set to Comfort
mode if value "1" (occupied) is received. It switches back to
previous operating mode when the value is "0" (unoccupied).
"Presence detector" is sent via KNX. It has the same effect as the
local presence detector function on X1, X2, U1 (parameter P150,
P153, P155).
Only one input source must be used, either local input X1/X2/U1
or KNX bus.
25
Room temp:
Comfort basic
setpoint
Temperature
9.001
2 bytes
CWU
If function "Temporary comfort setpoint" is enabled via P103, once
operating mode of manager is changed, the setpoint adjustments
made by the user and via communication object 25 are dismissed.
Then the thermostat is reset to the Comfort basic setpoint.
The range is 5...40 °C.
Note: Setpoints that have been changed via the local HMI may be
overwritten during a system startup from a central manager
controller, e.g., RMB795B.
The Comfort basic setpoint is stored in EEPROM (see Setting and
adjusting setpoints [➙ 40]). The service life of the EEPROM
depends on the number of write cycles. Never write this
communication object cyclically.
Obj
Object name
Function
Type/
length
Flags
26
Room temp:
Comfort setpoint
abs (receive)
Temperature
9.001
2 bytes
CWU
Communication object shifts the setpoint (absolute) used by the
thermostat (Manager) received via bus (see Setting and adjusting
setpoints [➙ 40]). The priority is same as local setpoint shift on the
thermostat. The last selected option is always used.
The range is 5...40 °C.
Note: The Comfort basic setpoint (object 25) will not be changed.
27
Room temp:
Comfort setpoint
abs (send)
Temperature
9.001
2 bytes
CRT
Sends the current Comfort absolute setpoint value used in the
RDG2..KN (Manager) (see Setting and adjusting setpoints [
➙ 40]).
28
Room temp:
Current setpoint
Temperature
9.001
2 bytes
CRT
Current setpoint, including shift, compensation, etc., used by the
thermostat (Manager) for temperature control.
29
30
Setpoint
heat set (receive)
cool set (receive)
Temperature
setpoint setting
for 4 HVAC
modes
275.100
8 bytes
CW
Receive a set of all cool / heat setpoints for all modes of manager.
(Comfort, Pre-Comfort, Economy and Protection: All setpoints
range is 5…40 °C.)
Depending on selected application, the relevant setpoint of only
heating / only cooling / heating and cooling will be stored
accordingly.
Heating setpoint value must be lower than cooling setpoint value.
31
32
Setpoint
heat set (send)
cool set (send)
Temperature
setpoint setting
for 4 HVAC
modes
275.100
8 bytes
CRT
Send a set of cool / heat setpoints used in the device for all modes
of manager. (Comfort, Economy and Protection)
Depending on selected application, the relevant setpoint of only
heating / only cooling / heating and cooling will be sent
accordingly.
33
Room
temperature:
Comfort setpoint
rel (receive)
Temperature
9.002
2 bytes
CWU
Communication object shifts the setpoint (relative) used by the
thermostat (Manager) (see Setting and adjusting setpoints [
➙ 40]). The priority is same as local setpoint shift on the
thermostat. The last selected option is always used.
The range is -3 K…+3 K.
Note: The Comfort basic setpoint (object 25) will not be changed.
34
Room
temperature:
Comfort setpoint
rel (send)
Temperature
9.002
2 bytes
CRT
Sends the current Comfort relative setpoint value used in the
RDG2..KN (Manager) (see Setting and adjusting setpoints [
➙ 40]).
The range is -3 K…+3 K.
Note: The Comfort basic setpoint (object 25) will not be changed.
The object works only when Comfort setpoint is set.

Siemens RDG20 KN Series Specifications

General

Brand	Siemens
Model	RDG20 KN Series
Category	Thermostat
Language	English