Siemens QAM2151.040/MO Operator's manual

Duct Temperature, Humidity and Air Quality Sensors:
-QAM2151.040/MO
-QFM2150/MO, QFM3150/MO
-QPM2102/MO, QPM2150/MO, QPM2152/MO
Immersion Temperature Sensor:
-QAE2154.010/MO
Modbus RTU (RS-485)
Basic Documentation
A6V11610643_en--_a Smart Infrastructure
2019-07-12

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Table of Contents
1 About this document............................................................................. 3
1.1 Revision history...........................................................................................3
1.2 Before you start...........................................................................................3
2 Product overview ................................................................................. 5
2.1 Type summary.............................................................................................5
2.2 Product documentation................................................................................5
3 Wiring................................................................................................. 6
4 Configurations..................................................................................... 7
4.1 DIP switch for configuration method selection..............................................7
4.2 Modbus configuration parameters................................................................7
4.3 Modbus registers.........................................................................................8
4.4 LED colors and patterns..............................................................................9
4.5 Push button configuration..........................................................................10
4.5.1 On-event addressing (ClimatixTM controllers configuration)..........10
4.5.2 Resetting Modbus parameters ....................................................11
4.6 DIP switch configuration ............................................................................12
4.7 Bus termination..........................................................................................13
5 Maintenance.......................................................................................14
5.1 Disposal ....................................................................................................14
6 Appendices........................................................................................15
6.1 Cyber security disclaimer...........................................................................15
6.2 FCC ..........................................................................................................15

About this document
Revision history
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1 About this document
1.1 Revision history
Edition Date Changes Section
a 2019-07 First version. All
1.2 Before you start
This document may be duplicated and distributed only with the expressed
permission of Siemens Switzerland Ltd.
These documents were prepared with great care.
●The content of all documents is 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 ensure that you have the latest document revision.
If you have any questions or suggestions about this document, or if you have any
criticisms or suggestions, please contact your local point of contact (POC) at the
nearest branch office. Addresses for Siemens RCs are available at
www.siemens.com/sbt.
Markups
Special markups are indicated in the document as follows:
●Numbered lists and instructions with an operation sequence
1.
2. Procedures must be performed in the specified order.
[➙X] Reference to a page number
Symbol identifications
WARNING
This is the symbol for hazard. It warns you of
Risks of injury.
Comply with all
measures designated by this symbol to prevent injury or death.
NOTICE
This symbol identifies an important notice that you should be aware of when you
are using the product.
Before using products from Siemens Switzerland Ltd., it is important that you
carefully read the documents supplied with or ordered at the same time as the
products (equipment, applications, tools, and so on).
We assume that users are authorized and trained appropriately and have the
technical knowledge required to use our products as intended.
Additional information on products and applications is available:
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Quality assurance
Conventions for text
marking
Document use/ request to
the reader

About this document
Before you start
1
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●From your Siemens branch office www.siemens.com/sbt or at your system
suppliers.
●From the support team at headquarters [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.

Product overview
Type summary
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2 Product overview
The sensors are used in ventilation and air conditioning plants.
2.1 Type summary
Product number SSN no. Measurement parameter Output
signal
CO2IAQ (VOC) Temperature Relative
humidity
QAE2154.010/MO S55720-
S465 - - -10...120 °C - Modbus RTU
QAM2151.040/MO S55720-
S466 - - -50…50 °C - Modbus RTU
QFM2150/MO S55720-
S467 - - -40…70 °C 0…100 % r.h. Modbus
RTU
QFM3150/MO S55720-
S468 - - -40…70 °C 0…100 % r.h. Modbus RTU
QPM2102/MO S55720-
S469 0…2000 ppm 0…100 % - - Modbus RTU
QPM2150/MO S55720-
S470 0…2000 ppm - -35…50 °C - Modbus RTU
QPM2152/MO S55720-
S471 0…2000 ppm - -35…50 °C 0…100 % r.h. Modbus RTU
2.2 Product documentation
Product number Datasheet Mounting instructions
QAE2154.010/MO A6V11610252 A6V11610241
QAM2151.040/MO A6V11610632 A6V11610244
QFM2150/MO A6V11610635 A6V11610246
QFM3150/MO A6V11610638
QPM2102/MO, QPM2150/MO,
QPM2152/MO A6V11610641 A6V11610248
See the datasheets and mounting instructions for detailed information. You can
download the above documents at http://siemens.com/bt/download.

Wiring
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3 Wiring
G Operating voltage AC 24 V ±20 % or DC 13.5...35 V
G0 GND
+ RS485 Modbus A
- RS485 Modbus B
Ref GND_ISO

Configurations
DIP switch for conf
iguration method selection
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4 Configurations
4.1 DIP switch for configuration method selection
The sensor is a Modbus RTU (RS-485) slave device. It can be configured with a
Modbus master when DIP2-Position 7 is OFF (default setting).
The sensor has two sets of DIP switches: DIP1 and DIP2. It can be manually
configured with DIP switches when DIP2-Position 7 is ON.
For details, see DIP switch configuration [➙12].
4.2 Modbus configuration parameters
Name Range/numeration Default
Configurable Modbus address 1...247 1
Baud rate (bps) 0 = Auto
1 = 9600
2 = 19200
3 = 38400
4 = 57600
5 = 76800
6 = 115200
0
Transmission format
(start bits-data bits-
parity-stop bits)
0 = 1-8-E-1
1 = 1-8-O-1
2 = 1-8-N-1
3 = 1-8-N-2
0
Bus configuration
command 0 = Ready
1 = Load
2 = Discard
0
Basic Parity Even
Odd
None
Even
Stop bits 1 / 2 1
Data 8 bits (0…255) -
Identity Slave -
Cable length < 600 m -

Configurations
Modbus registers
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NOTES:
●Register 764 (Modbus address) cannot be configured as 246 via a master.
Address 246 is reserved for on-event addressing.
●Bus configuration command (768) is for on-event addressing only.
4.3 Modbus registers
Holding
Register
(16-bit)
No.
Description Range Unit Scaling Default R/W
1 Temperature value -327…327 °C
-556.6…620.6 °F °C °F 0.01 - R
2Temperature
reliability 0 – No error
1 – Bad reliability,
unavailable
- - - R
3Relative humidity
value 0…100 % % 0.01 - R
4 Humidity reliability 0 – No error
1 – Bad reliability,
unavailable
- - - R
5 CO2value 0…2000 ppm ppm - - R
6 CO2reliability 0 – No error
1 – Bad reliability,
unavailable
- - - R
7 IAQ value 0…100 % % 0.01 - R
8 IAQ reliability 0 – No error
1 – Bad reliability,
unavailable
- - - R
212 VOC sensitive 0 – Slow
1 – Medium
2 - Fast
- - 1 RW
401 System unit 0 – Celsius
1 – Fahrenheit
others - invalid
value to be
discard
- - 0 RW
1286 SW version: Major &
Minor versions - - - - R
1287 SW version: Build
version - - - - R
764 Modbus address 1…247 - - 1 RW

Configurations
LED colors and patterns
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Holding
Register
(16-bit)
No.
Description Range Unit Scaling Default R/W
765 Baud rate 0 = Auto
1 = 9600bps
2 = 19200bps
3 = 38400bps
4 = 57600bps
5 = 76800bps
6 = 115200bps
- - 0 RW
766 Transmission format
(start bits-data bits-
parity-stop bits)
0 = 1-8-E-1
1 = 1-8-O-1
2 = 1-8-N-1
3 = 1-8-N-2
- - 0 RW
767 Reserve - - - - RW
768 Bus configuration
command 0 = Ready
1 = Load
2 = Discard
- - 0 RW
NOTES:
●The register number is counted from 1.
●764 (Modbus address) cannot be configured as 246 via a master. Address 246
is reserved for on-event addressing.
●In the case of a multiple writing command from the master with invalid values,
the sensor rejects the command with an error notice. The register values
remain unchanged.
●Bus configuration command (768) is for on-event addressing only.
●Software version format: major version is 1 byte, minor version is 1 byte and
build version is 2 bytes, such as [2.01.33] = 0x02010021.
4.4 LED colors and patterns
Color Pattern Description
Green Constant until device boots Power up
Flashing (1 s on / 5 s off) ●Power-up is completed.
●Working properly
●Modbus is configured.
Flickering Bus communication
Orange Flashing (1 s on / 5 s off) Bus communication failure
Flashing (1 s on / 1 s off) ●Power-up is completed.
●Working properly
●Modbus is not configured.
Constant Waiting configuration via Modbus in on-event
addressing mode
Red Flashing (0.1 s on / 1 s off) Invalid parameter value received from master
Flashing (1 s on / 5 s off) Internal error:
●Sensing element malfunction
●Sensing element is not connected.

Configurations
Push button configuration
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4.5 Push button configuration
When DIP2-Position 7 is OFF (default setting), push button function is activated.
The following can be operated via push button:
●On-event addressing
●Resetting the Modbus parameters to factory default settings
4.5.1 On-event addressing (ClimatixTM controllers configuration)
On-event addressing is a rapid configuration approach working together with
Siemens ClimatixTM controllers.
The sensor is wired and connected to the Climatix TM controller via Modbus.
Press the
push
button for
LED Action More details
1…5 s Constant red Press and hold the button
5…10 s LED off Release the button Entering the addressing mode, LED is
constant orange.
●Address is set to 246 temporarily.
●Baud rate is set to Auto and then
auto baud rate recognition is
done.
●Format is set to 1-8-E-1
temporarily.
Communication is established.
●Master writes the Modbus
parameters. 1)
●Master writes “1” into register
4x0768 ("Bus configuration.
command”) to activate the
change.
After a successful pairing, the LED
flashes green (1 s on / 5 s off).
Otherwise the LED turns back to its
original state.
●Time out after 30 s 2)
< 10 min Constant orange
in addressing
mode
Press once and release the
button If the LED is constant orange, a short press of the push button stops and
exits the on-event addressing mode.
After exiting addressing mode, the
LED turns back to its original state.
Push button
Enter addressing mode
and configuration workflow
via push button