Siemens DF301 Operator's manual

RDF301,
RDF600KN RDF600KN/VB RDF301.50, RDF600KN/S RDF301.50H
Semi-flush mount communicating
room thermostats
RDF301, RDF301.50..., RDF600KN, RDF600KN/VB,
RDF600KN/S
Basic documentation
Edition: 2.8
CE1P3171en
2020-02-21 Smart Infrastructure

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Contents
1. About this document...........................................................................4
1.1 Revision history.....................................................................................4
1.2 New functions........................................................................................5
1.3 Reference documents............................................................................6
1.4 Before you start.....................................................................................7
1.4.1 Copyright...............................................................................................7
1.4.2 Quality assurance..................................................................................7
1.4.3 Document use / request to the reader....................................................7
1.5 Target audience, prerequisites...............................................................8
1.6 Glossary................................................................................................8
2. Summary..............................................................................................9
2.1 Types ....................................................................................................9
2.2 Ordering................................................................................................9
2.3 Functions...............................................................................................9
2.4 Integration via KNX bus.......................................................................11
2.5 Equipment combinations......................................................................13
2.6 Accessories.........................................................................................13
3. Functions...........................................................................................14
3.1 Temperature control.............................................................................14
3.2 Operating modes.................................................................................15
3.2.1 Different ways to influence the operating mode....................................16
3.2.2 Communication examples....................................................................20
3.3 Room temperature setpoints................................................................25
3.3.1 Description ..........................................................................................25
3.3.2 Setting and adjusting setpoints ............................................................27
3.4 Applications overview ..........................................................................28
3.4.1 Applications for fan coil systems..........................................................29
3.4.2 Applications for Universal systems* .....................................................30
3.4.3 Applications for heat pump systems.....................................................31
3.5 Additional functions..............................................................................32
3.6 Control sequences...............................................................................35
3.6.1 Sequences overview (setting via parameter P01).................................35
3.6.2 Application mode.................................................................................36
3.6.3 2-pipe fan coil unit................................................................................38
3.6.4 2-pipe fan coil unit with electric heater..................................................39
3.6.5 4-pipe fan coil unit................................................................................41
3.6.6 Chilled / heated ceiling and radiator applications*.................................42
3.6.7 Compressor applications......................................................................43
3.6.8 Setpoints and sequences.....................................................................44
3.7 Control outputs....................................................................................46
3.7.1 Overview.............................................................................................46
3.7.2 Control outputs configuration (setting via DIP switches or tool).............47
3.8 Fan control..........................................................................................48
3.9 Multifunctional input, digital input..........................................................51
3.10 Handling faults.....................................................................................53
3.11 KNX communications...........................................................................54

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3.11.1 S-Mode................................................................................................54
3.11.2 LTE Mode............................................................................................54
3.11.3 Zone addressing in LTE Mode (in conjunction with Synco)...................55
3.11.4 Example of heating and cooling demand zone.....................................57
3.11.5 Send heartbeat and receive timeout.....................................................58
3.11.6 Startup.................................................................................................58
3.11.7 Heating and cooling demand................................................................58
3.11.8 Fault function on KNX..........................................................................59
3.11.9 KNX switching groups (RDF600KN/S, RDF301.50, RDF301.50H only) 60
3.12 Communication objects (S-Mode)........................................................62
3.12.1 Overview.............................................................................................62
3.12.2 Description of communication objects..................................................63
3.13 Communication objects (LTE-Mode) ....................................................66
3.14 Control parameters..............................................................................67
3.14.1 Parameter setting via local HMI............................................................67
3.14.2 Parameter setting / download via tool...................................................68
3.14.3 Parameters of the "Service level".........................................................69
3.14.4 Parameters of the "Expert level with diagnostics and test"...................70
4. Handling.............................................................................................73
4.1 Mounting and installation .....................................................................73
4.2 Commissioning....................................................................................74
4.3 Operation.............................................................................................76
4.4 Remote operation................................................................................77
4.5 Disposal ..............................................................................................77
5. Supported KNX tools.........................................................................78
5.1 ETS.....................................................................................................78
5.1.1 Parameter settings in ETS...................................................................78
5.2 ACS Service and Operating tool...........................................................79
5.2.1 Parameter settings in ACS...................................................................80
5.2.2 Operation and monitoring with ACS......................................................81
5.2.3 Operation and monitoring with OZW772...............................................84
5.2.4 Operation and monitoring with RMZ972...............................................84
6. Connection.........................................................................................85
6.1 Connection terminals...........................................................................85
6.2 Connection diagrams...........................................................................86
7. Mechanical design.............................................................................87
7.1 General ...............................................................................................87
7.2 Dimensions..........................................................................................88
8. Technical data....................................................................................89
Index 91

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1. About this document
1.1 Revision history
Edition Date Changes Section Pages
2.8 2020-02-21 - KNX interface
- RDF600KN/VB 4.2 All 74 All
2.7 2017-11-30 - Add product name RDF600KN/S
- Update KNX and ACS logo All All
2.6 2017-08-07 - Remove universal applications for RDF301 and
RDF301.50
- Add notes: RDF301.50 is not suitable for
applications in heating mode without fan
operations
All All
2.5 2017-02-17 Update “Send heartbeat and receive timeout” 3.11.5 57
2.4 2016-03-28 RDF600KN changes from SW V1.8 to V2.0
Presence detection function:
- V1.8 with only standard presence
- V2.0 with both standard presence (factory setting
P77 = 1) and hotel presence (P77 = 2)
Error handing and sensor errors
- V2.0 with additional alarms
Update Synco topology
All
3.10
2.4
All
54
11
2.3 2015-06-10 All Units:
Update mounting notes and connection diagrams
regarding overcurrent protection
Replace directives with declaration document number
4.1
6.2
8
73
86
89
2.2 June 2014 Added RDF301.50H
RDF600KN (SW V1.8)
- Update window contact and presence detector
function.
For all models:
Update with wiring and protection information
New S-Mode objects for Economy setpoint
All All
2.0 Oct 2012 Added RDF600…family All All
1.0 22 Jun 2010 First edition

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1.2 New functions
Availability of new functions depends on the software version used; see table
below.RDF301 /
RDF301.50 /
RDF301.50H
RDF600KN / RDF600KN/VB RDF600KN/S
Firmware updates SW = V4.1 SW < V1.8 SW = V1.8 SW >= V2.0 SW >= V1.0
Hotel presence ü ü
Standard presence mode ü ü ü
External sensor error
message Er3 ü ü
Window contact ü ü ü
Operating mode switchover
contact ü ü
Fan stage in dead zone
(Comfort) ü ü ü
Fan start delay ü ü ü
Room temperature: S-Mode
object Economy heating
setpoint
ü ü ü
Room temperature: S-Mode
object Economy cooling
setpoint
ü ü ü

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1.3 Reference documents
Subject
Ref
Doc No.
Description
Semi-flush mount room
thermostats with KNX
communications,
RDF301, RDF301.50,
RDF600KN, RDF600KN/VB,
RDF600KN/S
[1] CE1N3171 Data Sheet
[2] CE1B3171 Operating Instructions
[3]
[3a] CE1M3171 CE1M3076.3 Mounting Instructions RDF301... Mounting Instructions RDF600KN…
KNX Manual [4] Handbook for Home and Building Control – Basic Principles
(http://www.knx.org/knx-en/training/books-documentation/knx-association-
books/index.php)
Synco and KNX (see
www.siemens.com/synco
)[5] CE1N3127 KNX bus, Data Sheet [6] CE1P3127 Communication via the KNX bus for Synco 700, 900 and
RXB/RXL, Basic Documentation
[7]
XLS template
in HIT Planning and commissioning protocol, communication Synco 700
[8] CE1N3121 RMB795 central control unit, Data Sheet
[9] CE1Y3110 KNX S-Mode data points
[10] -- Product data for ETS
[11] CE1J3110 ETS product data compatibility list
[12] 0-92168en Synco Application Manual
Desigo
engineering documents [13] CM1Y9775 Desigo RXB integration – S-Mode [14] CM1Y9776 Desigo RXB / RXL integration – IndividualAddressing
[15] CM1Y9777 Third-party integration
[16] CM1Y9778 Synco integration
[17] CM1Y9779 Working with ETS
Apogee
engineering documents [18] 565-132 Installation Instructions: KNX driver for PXC Modular [19] 127-1676 Technical Spec Sheet: KNX driver for PXC Modular
[20] 140-0804 Technical reference for KNX driver
[21] 140-0804 Application 6205 point map for RDF

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1.4 Before you start
1.4.1 Copyright
This document may be duplicated and distributed only with the express permission
of Siemens, and may be passed only to authorized persons or companies with the
required technical knowledge.
1.4.2 Quality assurance
This document was prepared with great care.
·The contents of this document are checked at regular intervals
·Any corrections necessary are included in subsequent versions
·Documents are automatically amended as a consequence of modifications and
corrections to the products described
Please make sure that you are aware of the latest document revision date.
If you find lack of clarity while using this document, or if you have any criticisms or
suggestions, please contact the Product Manager in your nearest branch office.
The addresses of the Siemens Regional Companies are available at
www.buildingtechnologies.siemens.com.
1.4.3 Document use / request to the reader
Before using our products, it is important that you read the documents supplied
with or ordered at the same time as the products (equipment, applications, tools,
etc.) carefully and in full.
We assume that persons using our products and documents are authorized and
trained appropriately and have the technical knowledge required to use our
products as intended.
More information on the products and applications is available:
·On the intranet (Siemens employees only) at
https://workspace.sbt.siemens.com/content/00001123/default.aspx
·From the Siemens branch office near you
www.buildingtechnologies.siemens.com or from your system supplier
·From the support team at headquarters [e-mail] if
there is no local point of contact.
Siemens assumes no liability to the extent allowed under the law for any losses
resulting from a failure to comply with the aforementioned points or for the
improper compliance of the same.

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1.5 Target audience, prerequisites
This document assumes that users of the RDF KNX thermostats are familiar with
the ETS and/or SyncoACS tools and able to use them.
It also presupposes that these users are aware of the specific conditions associ-
ated with KNX.
In most countries, specific KNX know-how is conveyed through training centers
certified by the KNXAssociation (see www.knx.org/).
For reference documentation, see section 1.2.
1.6 Glossary
The inputs, outputs and parameters of an application can be influenced in various
ways. These are identified by the following symbols in this document:
Parameters identified by this symbol are set using ETS.
Parameters identified by this symbol are set using theACS tool.
Setting RDF KNX parameters is only supported by the following tool
versions:
– ETS3 or higher
– ACS version 5.11 or higher
Inputs and outputs identified by this symbol communicate with other KNX devices.
They are called communication objects (CO).
The communication objects of the RDF KNX thermostats work partly in S-Mode,
partly in LTE Mode, and partly in both. These objects are described accordingly.
A list of the parameters is shown in section 3.13.
ETS
ACS
STOP Note!

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2. Summary
2.1 Types
Product no. Stock no. Operating
voltage
Control outputs
Suitable conduit box 2)
Color
3-pos ON/OFF
RDF301 S55770-T104 AC 230 V 11) 21) square White
RDF301.50 4) S55770-T105 AC 230 V 11) 21) square White
RDF301.50H 3) S55770-T334 AC 230 V 11) 21) square White
RDF600KN S55770-T293 AC 230 V 11) 21) round or square White
RDF600KN/VB S55770-T430 AC 230 V 11) 21) round or square Black
RDF600KN/S 4) S55770-T400 AC 230 V 11) 21) round or square White
1) Selectable: ON/OFF or 3-position.
2) Square conduit box.
Round CEE conduit box min 60 mm diameter and min 40 mm depth.
3) Control outputs: KNX switching groups (Hotel: MUR, DND)
·MUR: Make Up Room, DND: Do Not Disturb.
4) Control outputs: KNX switching groups
2.2 Ordering
·When ordering, please indicate both product no. / stock no. and name:
E.g. RDF301 / S55770-T104 room thermostat.
·Order valve actuators separately.
2.3 Functions
Fan coil units via ON/OFF or modulating control outputs:
·2-pipe system
·2-pipe system with electric heater
·4-pipe system
Chilled / heated ceilings (or radiators)* via ON/OFF or modulating control
outputs:
·Chilled / heated ceiling
·Chilled / heated ceiling with electric heater
·Chilled / heated ceiling and radiator / floor heating
* Not applicable for RDF301, RDF301.50
Compressors: Via ON/OFF control
·1-stage compressors in DX type equipment
·1-stage compressors in DX type equipment with electric heater
The room thermostats are delivered with a fixed set of applications.
The relevant application is selected and activated during commissioning using
one of the following tools:
·Synco ACS
·ETS
·Local DIP switch and HMI
Use

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·Operating modes: Comfort, Economy (Energy Saving) and Protection
·ON/OFF or 3-position control outputs (relay)
·Output for 3-speed or 1-speed fan
·Automatic or manual heating / cooling changeover
·Backlit display
·AC 230 V operating voltage
·RDF600KN… for round CEE conduit box, with min 60 mm diameter,
min 40 mm depth or recessed square CEE conduit box
with 60.3 mm fixed centers
·RDF301… for recessed square CEE conduit box
with 60.3 mm fixed centers
·Room temperature control via built-in temperature sensor or external room
temperature / return air temperature sensor.
·Changeover between heating and cooling mode (automatic via local sensor or
bus, or manually).
·Selection of applications via DIP switches or commissioning tool.
·Select operating mode via operating mode button on the thermostat.
·Temporary Comfort mode extension.
·1- or 3-speed fan control (automatically or manually).
·Display of current room temperature or setpoint in °C and/or °F.
·Minimum and maximum limitation of room temperature setpoint.
·Button lock (automatically or manually).
·2 multifunctional inputs, freely selectable for:
– Sensor for automatic heating / cooling changeover
– External room temperature or return air temperature sensor
– Dew point sensor
– Electric heater enable
– Fault input
– Monitor input for temperature sensor or switch state
RDF301…
– Operating mode switchover contact … (keycard, window contact, etc.)
RDF600KN…:
– Window contact
– Presence detector (Standard presence mode and Hotel presence )
See pages 15 & 18.
·Advanced fan control function, e.g. fan kick, fan start, selectable fan operation
(enable, disable or depending on heating or cooling mode).
·"Purge" function together with 2-port valve in a 2-pipe changeover system.
·Reminder to clean fan filters (adjust with P62).
·Floor heating temperature limitation.
·Reload factory settings for commissioning and control parameters.
Fea
tu
res
Type of mounting /
suitable conduit boxes
Functions

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2.4 Integration via KNX bus
The RDF room thermostats can be integrated as follows:
·Integration into Synco 700 system via LTE Mode (easy engineering).
·Integration into Synco living via group addressing (ETS).
·Integration into Desigo and Apogee via group addressing (ETS) or
individual addressing.
·Integration into third-party systems via group addressing (ETS).
The following KNX functions are available:
·Central time program and setpoints, e.g. when using the RMB795 central
control unit.
·Outside temperature or time of day via bus displayed on thermostat.
·Remote operation and monitoring, e.g. using the RMZ792 bus operator unit.
·Remote operation and monitoring with web browser using the OZW772 web
server.
·Maximum energy efficiency due to exchange of relevant energy information,
e.g. with Synco 700 controllers (e.g. heating demand, cooling demand).
·RDF301.50 and RDF600KN/S only: 4 buttons to control KNX actuators via KNX
S-Mode
("switching groups" with functions such as switching, dimming, blinds control,
8-bit scene).
·RDF301.50H only: 4 buttons for Hotel applications to control via KNX S-Mode.
Same functions as RDF301.50, but with dedicated button labels for hotel
applications: Make Up Room, Do Not Disturb.
·Alarming, e.g. external fault contact, condensation, clean filter, etc.
·Monitoring input for temperature sensor or switch.
Engineering and commissioning can be done using…
– local DIP switches / HMI
– Synco ACS service tool
– ETS
The RDF room thermostats are especially tailored for integration into the Synco
700 system and operate together in LTE Mode. This extends the field of use of
Synco for individual room control in conjunction with fan coil units, VAV, chilled
ceilings and radiators.
Thanks to S-Mode extension to the QAX9x3 central apartment unit, communicating
room thermostats can be easily integrated into Syncoliving systems. Using the S-
Mode data points of the central apartment unit, additional room information can be
exchanged with the room thermostat via KNX TP1 (RF function is not available on
the room thermostats). To make the integration, the ETS engineering tool is
required.
Synco 700
Synco living

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Synco 700 Building automation and control system (BACS)
Synco living Room automation and control system
RDG..., RDF… Room thermostats
OZW772 Web server
RMZ792 Bus operator unit
QAW... Room unit
ACS Service tool using OCI702 (OCI702 are delivered with a
service cable which can be plugged into the service
connector on a Synco controller)
RXB Room controllers
QAX Room unit for RXB room controllers
The RDF KNX devices can be integrated into the Siemens building automation and
control systems (BACS) Desigo /Apogee or into 3rd-party systems. For integration,
either S-Mode (group addressing) or individual addressing can be used.
Synco topology
Legend:
Desigo, Apogee and
third
-
party systems
RDF600KN/S

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2.5 Equipment combinations
Description
Product no.
Data sheet
*)
Cable temperature sensor or
changeover sensor QAH11.1 1840
Room temperature sensor QAA32 1747
Condensation monitor QXA21.. A6V10741072
Electromotoric ON/OFF actuator SFA21... 4863
Electromotoric ON/OFF valve and
actuator
(only
available inAP, UAE, SAan
d IN)
MVI… /
MXI… A6V11251892
Zone valve actuator
(only available in AP, UAE, SAand IN)
SUA… 4832
Thermal actuator (for radiator valves)
NO STA23... 4884
Thermal actuator
(for small valves 2.5 mm), NC STP23... 4884
Electrical actuator, 3-position
(for radiator valves) SSA31... 4893
Electrical actuator, 3-position
(for 2- and 3-port valves / V…P45) SSC31 4895
Electrical actuator, 3-position
(for small valves 2.5 mm) SSP31… 4864
Electrical actuator, 3-position
(for small valves 5.5 mm) SSB31... 4891
Electrical actuator, 3-position SAS31… 4581
*) The documents can be downloaded from http://siemens.com/bt/download.
Note: For the maximal number of actuators in parallel, refer to information in the data sheets
of the selected actuators and to this list, depending on which value is lower:
·Parallel operation of max 6 SS… actuators (3-pos) is possible.
·
Parallel operation of max 10
ON
/
OFF
actuators is possible
.
2.6 Accessories
Description Product no / SSN Data
sheet
Changeover mounting kit
(50 pcs/package) ARG86.3 N3009
Plastic mounting bracket for semi-flush-
mount thermostats RDF301... for
increasing the headroom in the conduit
box by 10mm
ARG70.3 N3009
KNX Power supply 160 mA (Siemens BT LV)
5WG1 125
-
1AB0
2
--
KNX Power supply 320 mA (Siemens BT LV)
5WG1 125
-
1AB1
2
--
KNX Power supply 640 mA (Siemens BT LV)
5WG1 125
-
1AB2
2
--
ON/OFF actuators
3-position actuators

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3. Functions
3.1 Temperature control
Setting of the control parameters (P01, etc., mentioned throughout the document)
is described in section 3.13.
The thermostat acquires the room temperature via built-in sensor, external room
temperature sensor (QAA32), or external return air temperature sensor (QAH11.1),
and maintains the setpoint by delivering actuator control commands to heating
and/or cooling equipment. The following control outputs are available:
·ON/OFF control (2-position)
·Modulating PI/P control with 3-position control output (only for 2-pipe
applications)
The switching differential or proportional band is 2 K for heating mode and 1 K for
cooling mode (adjustable via parameters P30 and P31).
The integral action time for modulating PI control is 5 minutes (RDF301...) and 45
minutes (RDF600KN, RDF600KN/VB), adjustable via parameter P35.
The display shows the acquired room temperature or the Comfort setpoint, selecta-
ble via parameter P06. The factory setting displays the current room temperature.
Use parameter P04 to change the room temperature display from °C to °F as
needed.
The acquired room temperature (internal or external sensor) is also available as
information on the bus.
·With automatic changeover or continuous heating / cooling, symbols /
indicate that the system currently heats or cools (heating or cooling output is
activated).
·With manual changeover (P01 = 2), symbols / indicate that the system
currently operates in heating or cooling mode. Thus, the symbols are displayed
even when the thermostat operates in the neutral zone.
Concurrent display of the current temperature or setpoint in °C and °F (parameter
P07 = 1) is possible on the thermostats.
The outside temperature can be displayed on the room thermostat by setting
parameter P07 = 2. This temperature value has only information character.
In LTE Mode, the outside temperature can only be received on outside temperature
zone 31.
In S-Mode, the corresponding communication object needs to be bound with a
KNX sensor device.
Time of day via bus can be displayed on the room thermostat by setting parameter
P07 = 3 or 4. The display format is either in 12- or in 24-hour format.
The information can be received from a Synco controller with time master
functionality or any other KNX device if the corresponding communication object is
bound.
·When an application program is downloaded to the Synco devices via ETS, the
correct group addresses need to be downloaded as well to display the time of
day on the room thermostat (see Synco Knowledge Base - KB771).
General note:
P
arameters
Temperature control
Display
Room temperature
/
Concurrent display of
°C and °F
Outside temperature via
bus
Time of day via bus
Note:

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3.2 Operating modes
The thermostat's operating mode can be influenced in different ways (see below).
Specific heating and cooling setpoints are assigned to each operating mode.
The thermostat sends the effective room operating mode on the bus.
The following operating modes are available:
In Auto Timer mode the room operating mode is commanded via bus.
Auto Timer is replaced by Comfort when no time schedule via bus is present
In Comfort mode, the thermostat maintains the Comfort setpoint. This setpoint can
be defined via parameters P8, P9 and P10.
It can be locally adjusted via the +/- buttons or via bus.
In Comfort mode, the fan can be set to automatic or manual fan speed: Low,
medium or high.
Standard presence mode:
The thermostat switches to Comfort mode when the presence detector (local or on
KNX) is active (room is occupied). *)
Hotel presence mode:
When hotel guests leave their rooms, the thermostat switches to Economy mode
and the local HMI (keys) is locked. Upon occupancy, the thermostat returns to the
previous operating mode set by the hotel guests.
The setpoints (less heating and cooling than in Comfort mode) can be defined via
parameters P11 and P12.
The thermostat switches to Economy mode when...
– the operating mode button is pressed (only possible if parameter P02 is set to 2)
– Economy is sent via bus
– an operating mode switchover contact on RDF301…(e.g. keycard contact
presence detector, window contact) is active. *)
- "Window state" is sent to the RDF301 via bus, e.g. from a KNX switch or a KNX
presence detector (P02 is irrelevant) *)
In Protection mode, the system is...
– protected against frost (factory setting 8 °C, can be disabled or changed via
P65)
– protected against overheating (factory setting OFF, can be enabled or changed
via P66)
No other operating mode can be selected locally if Protection mode is commanded
via bus. and are displayed.
The thermostat switches to Protection mode when...
– the operating mode button is pressed
– Protection is sent via bus
– the window contact on RDF600KN, RDF600KN/VB is active (open window).
– "Window state" is sent to the RDF600KN, RDF600KN/VB via bus, e.g. from a
KNX switch *)
*) Refer to chapter 3.2.1 for detail regarding the operating mode switchover
contact (RDF301...), window contact (RDF600KN…) and presence detector
(RDF600KN…).
Room operating mode:
State
Auto Timer
Comfort
Presence detector
(RDF600KN
…
)
Economy
Room operating mode:
Window state
(RDF301…)
Protection
Room operating mode:
Window state
(RDF600KN
…
)
Note:

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3.2.1 Different ways to influence the operating mode
The operating mode can be influenced by different interventions.
The source of the effective room operating mode state can be monitored using the
"Cause" diagnostic data point in theACS tool, operator unit RMZ792 or web server
OZW772.
Source
Description
Value of DP "Cause"
Local operation
via operating
mode button
·Operating mode is not Auto Timer
·No time schedule via bus Room operating mode selector
(pre-selection)
·Temporary Comfort extension is active Timer function
·Operating mode switchover contact (RDF301..) Room operating mode contact
·Window contact (RDF600KN…) 1) Window switch
·Presence detector (RDF600KN…) 1) Presence detector
Bus command
Room op. mode
·"Window state" sent via bus (RDF301….) Room operating mode contact
·"Window state" sent via bus (RDF600KN…) 1) Window switch
·"Presence detector" sent via bus (RDF600KN…)
1) Presence detector
·Time schedule available via bus
àlocal operating mode is set to Auto Timer
·Time schedule sends Protection mode via bus
àoperating mode cannot be changed locally
Time switch
1) RDF600KN, RDF600KN/VB SW version < V1.8 works like RDF301… with the
operating mode switchover contact.
The following table shows the priorities of different interventions.
A lower number means a higher priority.
Priority
Description
Remark
Commissioning In parameter setting mode (highest priority), you can always
command an operating mode independent of all other settings
or intervention via bus and local input.
Protection mode via bus
from time schedule Protection mode, sent by a time schedule, has priority 2. It cannot be overridden by the user nor by an operating mode
switchover contact.
Operating mode
switchover contact
(RDF301…)
If the contact is closed, the operating mode changes to
Economy. This overrides the operating mode on the thermostat.
Window contact
(RDF600KN…) 1)If the contact is closed, the operating mode changes to Protection. This overrides the operating mode on the
thermostat.
"Window state" via bus "Window state" sent via bus has the same effect as the local
operating mode switchover contact (on RDF301…) or local
window contact (on RDF600KN, RDF600KN/VB).
Note: Only one input source must be used, either local input
X1/X2 or KNX bus.
Presence detector
(RDF600KN…) 1) Standard presence mode: The thermostat switches to Comfort mode when the presence detector (local or on KNX) is active
(room is occupied). *)
Hotel presence mode: When hotel guests leave their rooms, the
thermostat switches to Economy mode and the local HMI (keys)
is locked. Upon occupancy, the thermostat returns to the
previous operating mode set by the hotel guests.
Source for change of
operating mode
ACS
Priority of operating
mode inter
ventions

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Presence detector via
bus (on RDF600KN…)
1)
"Presence detector" sent via bus has the same effect as the
local presence detector.
Operating mode button The user can switch the operating mode using the operating
mode button.
Operating mode via bus The operating mode can be changed via bus.
Temporary extended
Comfort mode via
operating mode button
The operating mode can be temporarily set from Economy to
Comfort by pressing the operating mode button, if...
– Economy was sent via bus
– extended Comfort period >0 (parameter P68)
The last intervention wins, either locally or via bus.
Time schedule via bus The operating mode sent via bus can be overridden by all other
interventions. Exception: Protection mode has priority 2.
Note: If the time schedule switches from Comfort to Economy,
but the presence detector is still active (room occupied), the
thermostat continues to work in Comfort mode for the period of
occupancy.
1) RDF600KN, RDF600KN/VB SW version < V1.8 works like RDF301… with
the operating mode switchover contact as window contact or presence
detector.
If a time schedule via bus is present, e.g. from central control unit, then theAuto
Timer mode is active. The thermostat automatically changes between Auto
Comfort and Auto Economy according to the time schedule via bus.
The display shows theAuto Timer mode symbol along with the symbol for the
effective room operating mode (Auto Comfort or Auto Economy ).
By pressing the operating mode button, you can change to another operating
mode.
Automatic fan is the default fan speed in Auto Timer mode.
Each time the time schedule sends a new operating mode (switching event), the
operating mode of the thermostat is set back toAuto Timer mode. This is to assure
that the room temperature is maintained according to the time schedule.
If the time schedule sends Pre-Comfort mode, then this mode will be transformed
either into Economy (factory setting) or Comfort (selectable via parameter P88).
No intervention is possible neither by the user nor by an operating mode switch-
over contact, if Protection mode is set by the time schedule. OFF flashes on the
display when the user presses a button.
The operating mode can be selected locally via the operating mode button.
The behavior of the operating mode button (user profile) can be defined via
parameter P02, factory setting is P02 = 1.
P02 Without time
s
chedule
With time sche-
dule via
bus
Description
1àà·Switching manually between 2modes, Economy is not
available (factory setting).
·Suited for hotel guest rooms or commercial buildings.
·If a time schedule via bus is available, then the Comfort
mode can be temporarily extended (see below).
2à à à à à ·Switching manually between
3
modes.
Auto Timer mode
with time schedule via
bus
Behavior when bus
sends new operating
mode
Pre
-
Comfort
via
bus
Behavior when bus
sends Protection
Availability of Economy
mode

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·Suited for homes and rooms where manual switching to
Economy mode is desired.
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, RDF600KN/VB 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).
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.
Operating mode
switchover contact
(window contact)
(RDF301
…
)
Window contact
(RDF600KN…)
Note:
Room operating mode:
Window state
Note:
Room operating mode:
Presence detector
(RDF600KN…)
Standard presence mode:
(factory setting P77=1)
Note:

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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.
This function can be selected via parameter P77=2.
The presence detector status can be set via card reader or presence detector
connected to the local multifunctional input (set P38 or P40 to 10) or via KNX (S-
Mode).
Response when the room is unoccupied, i.e. when the key card is removed from
the card reader or when the presence detector no longer detects movement.
·The operating mode of the thermostat switches to Economy.
·Changing the operating mode via local HMI is not possible (locked HMI) to
ensure Economy is active when rooms are unoccupied.
The operating mode can still be changed via bus, e.g. the hotel front desk switches
the operating mode to Protection upon check-out or extended vacancy.
Response when the room is occupied, i.e. when the key card is inserted or when
the presence detector detects movement.
·The thermostat returns to the last operating mode set for occupancy (either
Protection or Comfort)
If the operating mode is changed via bus during vacancy, the change is not based
on detection, e.g. front desk can set the operating mode to Comfort after guests
check in.
Hotel presence mode:
(P77=2)
Note:
N
ote:

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Siemens………………………RDF301, RDF301.50..., RDF600KN, RDF600KN/VB, RDF600KN/S Basic Documentation CE1P3171en
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Comfort mode can be temporarily extended (e.g. working after business hour or on
weekends) when the thermostat is in Economy mode. The operating mode button
switches the operating mode back to Comfort for the period preset in P68.
Press the operating mode button again to stop the timer.
The following conditions must be fulfilled:
·mode selection via operating mode button is set to "Protection-Auto"
(P02 = 1) and the time schedule via bus is Economy.
·Parameter P68 (extend Comfort period) is greater than 0.
During the temporary Comfort mode extension, symbol appears.
If parameter P68 (extend Comfort period) = 0, extended Comfort cannot be
activated; pressing the operating mode button will switch the thermostat to
Protection.
If the operating mode switchover contact is active, pressing the operating mode
button will show "OFF" (blinking).
3.2.2 Communication examples
The following examples show two typical applications of a central time schedule in
conjunction with local control of the room operating mode.
The room operating mode in rooms 1…2 of a building is determined by the time
schedule.Window contacts are fitted in all rooms.
The following conditions are specified:
The rooms are used and controlled by the time schedule as follows:
– Night setback from 17:00 to 08:00 (Economy)
– Protection from 20:00 to 06:00
– Lunch break from 12:00 to 13:00 (Pre-Comfort).
The substitution (parameter P88) for Pre-Comfort via bus is set on the thermostats
as follows:
– Room 1: Comfort (1)
– Room 2: Economy (0).
Temporary timer to
extend the Comfort
mode