Technical data
Table Of Contents
- 1. About this document
- 2. Summary
- 3. Functions
- 3.1 Temperature control
- 3.2 Operating modes
- 3.3 Room temperature setpoints
- 3.4 Applications overview
- 3.5 Additional functions
- 3.6 Control sequences
- 3.7 Control outputs
- 3.8 Fan control
- 3.9 Multifunctional input, digital input
- 3.10 Handling faults
- 3.11 KNX communications
- 3.11.1 S-mode
- 3.11.2 LTE mode
- 3.11.3 Zone addressing in LTE mode (in conjunction with Synco)
- 3.11.4 Example of heating and cooling demand zone
- 3.11.5 Send heartbeat and receive timeout
- 3.11.6 Startup
- 3.11.7 Heating and cooling demand
- 3.11.8 Fault function on KNX
- 3.11.9 KNX switching groups (RDF301.50, RDF301.50H only)
- 3.12 Communication objects (S-mode)
- 3.13 Communication objects (LTE-mode)
- 3.14 Control parameters
- 4. Handling
- 5. Supported KNX tools
- 6. Connection
- 7. Mechanical design
- 8. Technical data

The thermostat can be forced into Economy mode (e.g. when a window is opened,
when a presence detector signals "no one present", when the keycard of a hotel
room is withdrawn, etc). The contact can be connected to multifunctional input X1,
X2. Set parameter P38, P40 to 3. P02 is not relevant. User operations are
ineffective and "OFF" is displayed if the operating mode switch over contact is
active.
The thermostat can be forced into Protection mode when the window is opened.
The contact can be connected to multifunctional input X1, X2. Set parameter P38,
P40 to 3. User operations are ineffective and "OFF" is displayed if the window
contact is active.
RDF600KN SW version < V1.8 works like RDF301… with the operating mode
switchover function.
The function (operating mode switchover or window contact) is also available via
the KNX signal "Window state", e.g. from a KNX switch or a KNX presence
detector.
Only one input source must be used, either local input X1/X2 or KNX bus.
User operations are ineffective and "OFF" is displayed if the operating mode
switchover/ window contact is active, or if "Window state" is sent via bus.
The operating mode can be changed to Comfort and back to Economy mode
depending of the room occupancy (room occupied or not occupied, via presence
detector or keycard).
This function is not available on RDF600KN SW version < V1.8.
Behavior without time schedule:
• Whenever the presence detector is activated then the operating mode of the
thermostat goes to Comfort.
• Whenever the presence detector is deactivated then the operating mode goes
to Economy.
Behavior with time schedule via bus:
• When Time-switch is on Protection
- Presence detector has not influence on operating mode.
• When Time-switch is on Economy
- Whenever the presence detector is activated then the operating mode goes
to Comfort.
- Whenever the presence detector is deactivated then the operating mode
goes to (Auto) Economy.
• When Time-switch is on Comfort
- Whenever the presence detector is activated then the operating mode keeps
in Comfort.
- Whenever the presence detector is deactivated then the operating mode
keeps in Comfort.
Important: When Time-switch goes to Eco but Presence detector is still active,
the operating mode keeps in Comfort mode until the Presence detector is
inactive.
The contact (e.g. a card reader) can be connected to multifunctional input X1, X2
(set parameter P38 or P40 to 10) or the occupancy is sent via bus from a KNX
presence detector sensor: Only one input source must be used, either local input
X1/X2 or KNX bus.
Operating mode
switchover contact
(window
contact)
(RDF301…)
Window
contact
(RDF600KN)
Note:
KNX
R
Room operating mode:
Window state
Note:
KNX
R
Presence de
tector
(RDF600KN
)
Note:
17 / 92
Siemens RDF301, RDF301.50..., RDF600KN Basic documentation CE1P3171en
Building Technologies Functions 2014-05-23










