Siemens QMX3.P37 User manual

s Infrastructure & Cities
QMX3.P37 QMX3.P34 / P74 QMX3.P02 QMX3.P70 QMX3.P30
Wall-mounted sensors and room operator units for
KNX S-Mode and KNX LTE-Mode
Technical principles
CM2N1602en_01
2013-07-04
Building Technologies

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Contents
1About this document ..............................................................................4
1.1 Revision history.........................................................................................4
1.2 Before you start .........................................................................................4
1.2.1 Trademarks ...............................................................................................4
1.2.2 Copyright ...................................................................................................4
1.2.3 Quality assurance .....................................................................................4
1.2.4 Use of documents/ Request to the reader ................................................4
1.3 Abbreviations and naming conventions ....................................................5
1.3.1 Abbreviations ............................................................................................5
1.3.2 Naming convention ...................................................................................5
1.4 Reference documents ...............................................................................5
2Devices.....................................................................................................6
2.1 Type summary...........................................................................................6
2.2 Equipment combinations...........................................................................6
2.3 Variant and device parts............................................................................7
2.4 Service and connection elements .............................................................8
2.5 Dimensions................................................................................................9
2.6 Environmental compatibility, disposal .....................................................10
3Safety and EMC optimization...............................................................10
3.1 Notes on safety .......................................................................................10
3.2 Device-specific regulations .....................................................................10
3.3 Notes on EMC optimization..................................................................... 11
4Mounting and electrical installation ....................................................12
5Functionality / Use ................................................................................15
5.1 Basics......................................................................................................15
5.1.1 System environment ...............................................................................15
5.1.2 Engineering and commissioning documentation ....................................15
5.2 Overview .................................................................................................16
5.3 Use ..........................................................................................................17
5.4 Display elements and buttons .................................................................18
5.5 Functions.................................................................................................19
5.5.1 Measuring................................................................................................19
5.5.2 Control and operation..............................................................................20
5.6 Application examples ..............................................................................23
5.6.1 Room temperature control and operation via QMX3 ..............................23
5.6.2 Presence dependent room climate control with operation of all disciplines24
5.6.3 Room temperature, humidity and air quality control ...............................25

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6GAMMA building management system ..............................................26
6.1 Engineering .............................................................................................26
6.2 Commissioning........................................................................................26
6.3 KNX S-Mode communication objects .....................................................27
6.4 KNX S-Mode Parameter description.......................................................31
6.4.1 Room temperature sensor ......................................................................31
6.4.2 Room temperature control ......................................................................31
6.4.3 Room relative humidity sensor................................................................32
6.4.4 Room relative humidity control................................................................32
6.4.5 Room air quality sensor ..........................................................................33
6.4.6 Room air quality control ..........................................................................33
6.4.7 Device display parameters......................................................................33
6.4.8 HVAC operation and display ...................................................................34
6.4.9 Operation and display: Relative humidity visualization...........................34
6.4.10 Display on QMX3.P70 Air quality indication LED....................................34
6.4.11 Operation and display: air quality............................................................34
6.4.12 Operation of light, shading and scenes ..................................................35
6.5 Examples for the functionality of touch keys and display elements........36
7Synco building automation and control system................................38
7.1 Engineering .............................................................................................38
7.2 Commissioning........................................................................................38
7.3 Parameter description.............................................................................40
7.3.1 Communication .......................................................................................40
7.3.2 Universal temperature sensor.................................................................40
7.3.3 Room humidity sensor ............................................................................40
7.3.4 Room air quality sensor ..........................................................................40

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Building Technologies About this document 2013-07-04
1 About this document
1.1 Revision history
Revision
Date
Changes
Section
Pages
_01
July 2013
First edition
1.2 Before you start
1.2.1 Trademarks
The trademarks used in this document and their lawful owners are listed in the
table below.. The use of trademarks is subject to international and domestic
provisions of the law.
Trademark(s)
Legal owner
KNX® KNX Association, B - 1831 Brussels-Diegem Belgium
http://www.knx.org/
All product names listed in the table are registered (®) or not registered (™)
trademarks of the owner listed in the table. These trademarks will not be indicated
elsewhere in the text (e.g. by use of symbols such as ® and ™) due to the
reference in this Section and to facilitate the reading of the text,
1.2.2 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.
1.2.3 Quality assurance
These documents were prepared with great care.
•The contents of all documents are checked at regular intervals.
•All necessary corrections 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 any lack of clarity while using this document, or if you have any
criticisms or suggestions, please contact your local POC at the nearest branch
office. Addresses for Siemens RCs are available at www.siemens.com/sbt
1.2.4 Use of documents/ 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.

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For more details on the products and applications, please refer to:
•On the internet: "Technical product data and descriptions" at
www.siemens.com/gamma-td
•On the intranet (for Siemens employees only) at
http://step.bt.siemens.com/portal/index.html
•At your next Siemens branch office www.siemens.com/sbt or at your system
suppliers.
•From the support team in the headquarters fieldsupport-
[e-mail] if no local POC is available.
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.
1.3 Abbreviations and naming conventions
1.3.1 Abbreviations
Abbr.
Description
ACS790
Engineering Tool for Synco devices (KNX LTE-Mode)
ETS
Engineering Tool Software (KNX S-Mode) http://www.knx.org/
KNX LTE-Mode
Communication with KNX LTE-Mode (Logical Tag Extended Mode)
KNX S-Mode
Communication with KNX
1.3.2 Naming convention
The term "room operator unit" in this document always refers to all types:
QMX3.P02. P30. P34, P70 und P74.
1.4 Reference documents
The following documents are available at http://www.siemens.com/bt/download
[1] Data sheet N1602
[2] Mounting instructions M1692
[3] Word template for labels (QMX3.P02, P37) M1602.1
[4] KNX bus (CE1N3127)
[5] KNX Standard, Volume 3: System Specifications, Part 7, Chapter 2: Data
Point Types (http://www.knx.org/)
[6] Service- and Operating software ACS790 (CE1N5649)

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2 Devices
2.1 Type summary
Product number Stock number Features
Temperature sensor Sensor for humidity and CO2 Air quality indicator with LED Segmented backlit display and touchkeys Parameterizable touchkeys with LED display
Window for labels
Sensors
QMX3.P30 S55624-H103 X
QMX3.P70 S55624-H104 X X X
Room
operator
units
QMX3.P02 S55624-H107 X X X
QMX3.P34
S55624-H105 X X
QMX3.P74 S55624-H106 X X X
QMX3.P37 S55624-H108 X X X X
2.2 Equipment combinations
The room operator units are KNX certified and can be connected to all suitable
KNX devices, if the appropriate communication objects are available in the
application.
Use in the following BAC systems:
•GAMMA Building Management Systems / third-party devices (KNX S-Mode)
•Building automation and control systems with KNX S-mode
Integration of third-party devices and free configuration.
•Synco700
KNX LTE can only use the sensor information of types QMX3.P30 and
QMX3.P70.
•Desigo TRA
The devices can be used with all series room automation stations.

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2.3 Variant and device parts
2602J01
B
C
A
•The devices are designed for wall-mounting (A). A conduit box is optional.
– Conduit box: Keep in mind the dimensions of the conduit box!
– Cable conduits on the wall: Keep a distance of 30 mm (from above) /
20 mm (from below) to the base plate (B), so that the device (C) can be
snapped onto the base plate.
•The base plate (B) has screw holes for all common flush-mount boxes.
The screw head height must not exceed 3 mm.
•The device (C)incorporates a KNX plug, and, depending on the type, sensor
element, keys, LCD panel, window for the label.
The cable can be pushed into channels on the rear.
•A KNX plug is enclosed with the devices

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2.4 Service and connection elements
+
–
–+–+
R1 QMX3... Room operator unit
N1 Controller, actor
= Twisted pair
Service LED (red)
Programming pin
The service element functions are described Commissioning, sections 6.2 and 7.2.
The devices are supplied with peel-off adhesive address labels containing the
unique KNX ID as alphanumeric and barcode display.
KNX ID 00FD00086255 Hex
AQR2570NF
The address label can peeled off the device during mounting and stuck to a floor
plan or similar. The floor plan thus contains the assignment of KNX IDs and
physical installation location. This greatly simplifies the following steps. In addition,
the procedure serves as the basis for the recommended engineering and
commissioning process. If the adhesive labels are lost, all information is still
available in printed form on the housing.
Connection
Service LED (red) and
programming pin
Adhesive address
labels
Simplifying engineerin
g
and commissioning

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2.5 Dimensions
133.4
115
88.4 18
1602M01
_
01
80.5
78.5
60
28.2
26.5
26
13.1 56.5 17.5
28.2
3.5
1602M02

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2.6 Environmental compatibility, disposal
This device was developed and manufactured with environmentally compatible
materials and procedures complying with all relevant environmental standards.
Note the following to dispose of the product following its useful life or in case of
replacement:
•Do not dispose of the device as part of standard household garbage, but as
special waste from plastic and steel, ferrite-magnet components.
This applies in particular to the PCB.
•For this reason, dispose of the components compatible with current
environmental, recycling, and disposal technologies.
Observe all local, applicable laws.
•The aim is to reuse as much of the basic materials as possible at the lowest
possible environmental impact. To this end, note any material and disposal
notes in individual components.
The product environmental declaration CM2E1602 contains data on
environmentally compatible product design and assessments (RoHS compliance,
materials composition, packaging, environmental benefit, disposal)
3 Safety and EMC optimization
3.1 Notes on safety
This section explains general and system-specific regulations for mains and
operating voltages. It includes important information for your safety and the safety
of the entire plant.
Please comply with the following general regulations during engineering and
execution:
•Electrical and mains power ordinances for the given country.
•Other applicable, national regulations.
•Building installation regulations for the given country.
•Regulations of the utility company.
•Diagrams, cable lists, dispositions, specifications, and orders by the customer or
authorized engineering office.
•Third-party regulations, e.g. by the general contractor or building owner.
The electrical safety for building automation and control systems by Siemens is
essentially based on safely separating low voltage from mains voltage.
3.2 Device-specific regulations
Note permissible line lengths and topologies when planning and installing
controllers and field devices featuring KNX bus connection. Make sure the bus
supply complies with the KNX standard.
Do not open the device.
The device is maintenance free. Only the manufacturer can maintain the device.
General notes
Environmental
declaration
Please comply
with these notes
General
regulations
Safety
KNX bus supply
Warning,
maintenance

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3.3 Notes on EMC optimization
When setting up cable ducts, separate strongly interfering cables from susceptible
entities.
•Interfering cables: Motor cables especially from motors supplied by inverters,
energy-supplying cables.
•Susceptible entities: Control cables, low voltage cables, interface cables, LAN
cables, digital and analog signal cables.
•Both types of cables may be in the same cable duct, but in separate
compartments.
•If no three-sided, closed duct with separating wall is available, the interfering
cables must be separated by at least 150 mm from the others or placed in
separate ducts.
•Crossings of strongly interfering cables with possibly susceptible entities must
be at a right angle.
•In exceptional cases, signal and interfering power cables may be run in parallel,
resulting in a high interference risk.
We recommend to generally use unscreened cables. Comply with the
manufacturer's installation recommendations for selecting unscreened cables. In
general, unshielded twisted pair cables have sufficient EMC properties for
technical building applications (including data applications) and do not require
consideration of coupling to surrounding earth.
Setting up
cable ducts
Cable types
Separate cables
Unscreened cables

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4 Mounting and electrical installation
Comply with the following notes as well as the mounting instructions [2] to mount
the room sensor.
Note the permissible ambient temperature and humidity. See data sheet [1] for
environmental conditions.
•The devices are suitable for wall mounting.
•Recommended height: 1.50 m above floor.
•Do not mount the devices in recesses, shelves, behind curtains or doors, or
above or near heat sources.
•Avoid direct solar radiation and drafts.
•Seal the conduit box or the installation tube, as air currents can affect sensor
readings.
•Adhere to allowed ambient conditions.
•Mounting instructions M1602 are enclosed with the devices.
2602J02
*)
ServiceLED (red)
Programming pin
*) The installing tube must be sealed or cold or warm air may enter the device and
cause faulty temperature readings by the internal sensor.
Ambient conditions
Location (sensors,
room operator units)
Mounting instructions
Mounting over a
conduit box:

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Wall mounting
Remove the breakout on the housing before putting the cable into the gaining channel.
4-wire cables
(daisy chain wiring)
Remove the cable coating, as it will not fit in
the gaining channel.
Cable ducts on the wall
30 mm
Keep a distance of 30 mm (from above) /
20 mm (from below) to the base plate,
so that the device can be snapped onto the
base plate.
Dismounting / service:

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Max. 6
59.2 ±0.15
1602z110
54 ± 0.15
Sample icons are available in the label
template M1602.1
Information. e.g. on room operator unit
location or on room type
(free text)
•Follow the KNX regulations
•For KNX wiring (topology, allowed cables and cable length), see the document
KNX bus [4].
•Use the correct cables for the KNX bus
•Do not interchange the wires of the KNX cable.
– The red terminal is for KNX +
– The gray terminal is for KNX –
•Observe all local installation regulations.
STOP
Caution! •The devices are not protected against accidental connection to AC 230 V.
Information in topology and addressing in KNX networks is available in document
KNX bus [4]. The following information requires electrical installation as per the
KNX-TP1 standard.
Labels for QMX3.P02,
QMX3.P37
Insert label
Remove label
Installation
Bus cabling
1602Z106
1602J109
1602J110
1602Z107

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5 Functionality / Use
5.1 Basics
5.1.1 System environment
For engineering and commissioning, sound knowledge of KNX networks as well as
sufficient knowledge of working with ETS or ACS790 depending on system
environment is a prerequisite.
System environments and associated tools:
System / Network
environment
Engineering and commissioning tool(s)
KNX LTE-Mode
ACS790
KNX S-Mode
ETS Version 3f or 4 and later
If ETS3 is used, make sure to install first ETS3 patch
(additional software column SW) for ETS3.0f 
www.siemens.com/hvac-td
For ETS4, make sure the latest version is installed or at least
version 4.1.2.
•For ACS: An interface converter, e.g. OCI700 (part of service tool OCI700.1)
is required to connect a PC with USB interface to a KNX network.
•For ETS: An IP-interface, e.g. N148/22 (5WG1 148-1AB22), is required to
access a KNX network via internet protocol (IP).
•The room operator units QMX3... are supplied with the physical address 0.2.255
(default address).
5.1.2 Engineering and commissioning documentation
We recommend documenting and storing all planning data and settings to ensure
easy reuse even after an extended period of time or change of responsibilities.
Clear documentation is required especially in case of calculated or customized
settings. In KNX S-Mode systems, ETS for example can be used for this purpose.
Prerequisites
Engineering and
commissioning
documentation

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5.2 Overview
Product number
Function
Temperature sensor Sensor for humidity and CO2 Air quality indicator with LED Display and operation with touchkeys Operation of light, shading and scenes
Sensors
QMX3.P30 X
QMX3.P70 X X X
Room
operator
units
QMX3.P02 X X
QMX3.P34
X X
QMX3.P74 X X X
QMX3.P37 X X X

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5.3 Use
Six complementary device types are available which can control HVAC and electric
applications.
•Room temperature, humidity, and CO2content of the room are controlled
according to the demand and to energy efficiency criteria.
•Four freely parameterizable pairs of touchkeys can be configured for light
switching, dimming, blinds, scenes, sending values, etc.
The sensors in the room operator unit measure:
– Room temperature.
– Relative room humidity.
– CO2concentration in rooms with varying occupancy due to time or number of
people such as in museums, movie theaters, offices, meeting rooms, class
rooms, auditoriums, hospitals, living spaces.
The room operator units control and operate:
– Room temperature (via PID controller)
– Humidity (via threshold value)
– Air quality (via threshold value)
– Fan stages (independent of temperature, air quality and humidity control
functions)
– Room operating modes
– Input of the occupancy state
as well as
– Switching of electrical equipment
– Switching and dimming of lights
– Control of shading / blinds
– Selecting and saving of scenes
The room operator units with display show the following information about the
room:
– Present room temperature, outdoor temperature.
– Present room humidity, outdoor humidity .
– Present room air quality .
– State of window contacts
– Device mode (e.g. heating, cooling).
Details

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5.4 Display elements and buttons
Button
Button
1
2
3
4
5
6
7
8
•An arrow indicates that an element can be operated
•Temperature display in °C or °F / humidity in % r.H. /
air quality in text, symbol, or ppm of CO2
•Toggling (key 1) between indoor and outdoor measurement
(temperature, humidity, CO2)
•Indication that a window is open (connected window switch is active)
•Display of the plant state (Heating or Cooling / inactive)
Note: No manual switchover!
•Display of the relative or absolute setpoint for temperature
•Adjusting the setpoint using keys 2 and 6
•Display of the present fan speed (when automatic)
•Adjusting the fan speed using key 3 (or keys 3 and 7 if operation of room
operating mode is disabled)
•Display of the room operating mode (when automatic)
•Adjusting the room operating mode using key 7
•Navigation: toggle the display / setpoint setting between temperature /
humidity / CO2 , using key 4. The black bar points to the displayed
information.
•Operation of the occupancy state (presence switch, Comfort extension)
•Activate the Comfort extension using key 8 (only available if enabled)
•Engineering functions (press keys 1 and 8 simultaneously during 5 s)
– Programming mode (key 2), same function as programming pin
– Connection test (Key 3)
– Reset device to factory settings (key 4)
Note: This operation is irreversible!
A
B

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5.5 Functions
The room operator units with control functions can be integrated in a KNX network.
The control functions for room temperature and ventilation allow for immediate
control of suitable actuators to control heating, cooling, and ventilation.
5.5.1 Measuring
The room operator units measure the room temperature via an integrated sensing
element. The room temperature can be transmitted to other bus members and
serves in KNX S-Mode as control variable of the integrated room temperature
controller.
The room operator units acquire the relative humidity in the room with the aid of a
humidity sensing element integrated in the front module. The relative room
humidity can be transmitted to other bus members and serves in KNX S-Mode as
control variable of the integrated ventilation controller.
The room operator units determine the CO2concentration via infrared absorption
measurement (NDIR). The sensor provides exact measurements at all times and
does not require maintenance or recalibration thanks to an integrated, stable
reference light source. The CO2concentration can be transmitted to other bus
members and serves in KNX S-Mode as control variable of the integrated
ventilation controller.
The background-lit symbol informs on the current level of CO2in the room. The
colors green / orange / red of the background lighting indicate good / moderte /
poor air quality. The display can be switched on or off by another bus member, e.g.
switch or timer.
Temperature
(All Types)
Relative humidity
(QMX3.P70, QMX3.P74)
CO2concentration
(QMX3.P70, QMX3.P74)
Air quality indication
(QMX3.P70)

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5.5.2 Control and operation
Product number
Control and operation
PID control temperature Threshold value switch humidity and CO2 Operation of light, shading and scenes Manual switching of ventilation Room operating mode Presence function Only operation and display
Sensors
QMX3.P30 X X
QMX3.P70 X X
Room
operator
units
QMX3.P02 X X X
QMX3.P34
X X X X X X
QMX3.P74 X X X X X X
QMX3.P37 X X X X X X X
The room operator units can be connected via bus to suitable KNX S-Mode
heating, ventilating, and air conditioning actuators via integrated control functions
for room temperature, humidity, and air quality.
A proven PID controller for heating and cooling is provided to control the room
temperature. The controller supplies a continuous or a pulse-width-modulated PID
signal for one heating and one cooling actuator. The room temperature setpoints
for the two operating modes heating and cooling as well as a blocking object can
be set using the touchkeys and the display, or received from the bus. Changeover
to the operating mode Heating/Cooling is automatic. Preset control parameters,
adjusted to the building type, are available for selection.
The integrated room humidity controller and room air quality controller can be
used for ventilation control. For both controllers, the setpoints can be adjusted
using touchkeys and display, or they can receive up to three switching point values
via the bus.
When the respective switching point is exceeded, up to three control signals and
one quasi-continuous signal to control the ventilation actuators are transmitted to
Control functions
(KNX S-Mode all types