MDT KNX SCN-RT1UP.01 User manual

MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Phone: [phone] • Fax: [phone] • [e-mail] • www.mdt.de
State 12/2014
Technical Manual
MDT Room Temperature Controller
SCN-RT1UP.01
SCN-TS1UP.01
SCN-RT1UPE.01
SCN-RT1APE.01
Further Documents:
Datasheet:
https://www.mdt.de/EN_Downloads_Datasheets.html
Assembly and Operation Instructions:
https://www.mdt.de/EN_Downloads_Instructions.html
Solution Proposals for MDT products:
https://www.mdt.de/EN_Downloads_Solutions.html

Technical Manual –Room Temperature Controller SCN-RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Phone: [phone] • Fax: [phone] • [e-mail] • www.mdt.de
2
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1 Content
1 Content................................................................................................................................................. 2
2 Overview............................................................................................................................................... 4
2.1 Overview devices........................................................................................................................... 4
2.2 Usage & Areas of use..................................................................................................................... 4
2.3 Exemplary circuit diagram............................................................................................................. 5
2.4 Structure & Handling..................................................................................................................... 5
2.5 Functions ....................................................................................................................................... 6
2.5.1 Overview functions................................................................................................................. 7
2.6 Settings at the ETS-Software......................................................................................................... 8
2.7 Starting up ..................................................................................................................................... 8
3 Communication objects........................................................................................................................ 9
3.1 Default settings of the communication objects ............................................................................ 9
4 Reference ETS-Parameter .................................................................................................................. 11
4.1 General Settings .......................................................................................................................... 11
4.2 Temperature measurement........................................................................................................ 12
4.3 Alarm/Messages.......................................................................................................................... 14
4.4 Controller general........................................................................................................................ 16
4.4.1 Controller type ..................................................................................................................... 16
4.4.2 Operating modes & Setpoints.............................................................................................. 17
4.4.3 Setpoint offset...................................................................................................................... 23
4.4.4 Blocking objects.................................................................................................................... 25
4.4.5 Heating/Cooling request objects.......................................................................................... 26
4.4.6 Guiding ................................................................................................................................. 27
4.4.7 Dead zone............................................................................................................................. 29
4.5 Controller settings....................................................................................................................... 31
4.5.1 Control value ........................................................................................................................ 31
4.5.2 PI control continuous ........................................................................................................... 32
4.5.3 PI control switching (PWM).................................................................................................. 35
4.5.4 2-step control (switching)..................................................................................................... 37
4.5.5 Direction of controller.......................................................................................................... 39
4.5.6 Additional level..................................................................................................................... 39
4.5.7 Additional settings for heating and cooling ......................................................................... 42

Technical Manual –Room Temperature Controller SCN-RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Phone: [phone] • Fax: [phone] • [e-mail] • www.mdt.de
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5 Index................................................................................................................................................... 46
5.1 Register of Illustrations ............................................................................................................... 46
5.2 List of tables................................................................................................................................. 47
6 Attachment......................................................................................................................................... 48
6.1 Statutory requirements............................................................................................................... 48
6.2 Routine disposal .......................................................................................................................... 48
6.3 Assemblage.................................................................................................................................. 48
6.4 Controller..................................................................................................................................... 49
6.4.1 2-Step control....................................................................................................................... 49
6.4.2 PI-control continuous........................................................................................................... 50
6.4.3 PI-control switching (PWM) ................................................................................................. 51
6.5 Direction of controller................................................................................................................. 52
6.6 Datasheet .................................................................................................................................... 52

Technical Manual –Room Temperature Controller SCN-RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Phone: [phone] • Fax: [phone] • [e-mail] • www.mdt.de
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2 Overview
2.1 Overview devices
The manual refers to the following devices, which are in our assortment of room temperature
controller (Order Code respectively printed in bold type):
•SCN-RT1UP.01 Room temperature controller UP
ointegrated temperature controllers: Two-position, PI, PWM; flush mounted
•SCN-RT1APE.01 Room temperature controller AP with adjustment knop
ointegrated temperature controllers: Two-position, PI, PWM; surface mounted; with
adjustment knop
•SCN-RT1UPE.01 Room temperature controller UP with adjustment knob
ointegrated temperature controllers: Two-position, PI, PWM; flush mounted; with
adjustment knop
•SCN-TS1UP.01 Room temperature sensor 1-fold
oSensor for measuring the room temperature, without controller function
2.2 Usage & Areas of use
The room temperature controller has its areas of use at the controlling in home installations and in
the object range.
A lot of different controls can be realized by the room temperature controller. There are three
integrated controllers, which can be adjusted to the present system. The three controllers can
control as well heating systems as cooling systems. There are setting options for up to 4 different
operating modes. Additional levels, blocking functions, settings of external sensors and guiding can
also be adjusted.
An exception is the SCN-TS1UP.01. The SCN-TS1UP.01 is only a sensor for measuring the temperature.
There are no integrated temperature controllers at this device. The temperature sensor has its areas
of use at the measuring of temperatures for other controllers.

Technical Manual –Room Temperature Controller SCN-RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Phone: [phone] • Fax: [phone] • [e-mail] • www.mdt.de
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2.3 Exemplary circuit diagram
Figure 1: Exemplary circuit diagram
2.4 Structure & Handling
The room temperature controller is available in three different designs. There are designs for flush-
mounting and surface-mounting.
All of the devices contain of a bus-connection, a programming button and a programming LED at the
back.
Figure 2: SCN-RT1UP.01 Figure 3: SCN-RT1APE.01 Figure 4: SCN-RT1UPD.01
The room temperature sensor, SCN-TS1UP.01, is for flush-mounting. It contains also of a bus-
connection, a programming button and a programming LED.

Technical Manual –Room Temperature Controller SCN-RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Phone: [phone] • Fax: [phone] • [e-mail] • www.mdt.de
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2.5 Functions
All room temperature controllers can measure a temperature and send a control variable. The
controller has 5 different sub-menus. At every sub menu, different settings can be made. The sub
menus are structured in this way:
•Setup general
General settings can be made at this menu and the used device can be chosen.
•Temperature measurement
The settings for the measurement for the temperature can be made at this menu. Settings
for the min/max values and the sensor configuration are available at this parameter.
All sensors contain of an in-plant balance.
•Alarm/Messages
Alarms and messages can be adjusted at this menu. This alarms and messages report when
the temperature falls below an adjusted value or exceed an adjusted value.
•Controller general
At this menu, the desired function (heating, cooling or heating & cooling) can be assigned
and general settings, like setpoints, can be adjusted.
•Controller settings
This menu appears as soon as the controller has got a function assigned. Integrated
controllers can be chosen at this menu and the chosen controller can be parameterized
further.
If you choose the SCN-TS1UP.01 as device at the setup general, only the menus setup general,
temperature measurement and alarm/messages will be shown.

Technical Manual –Room Temperature Controller SCN-RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Phone: [phone] • Fax: [phone] • [e-mail] • www.mdt.de
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2.5.1 Overview functions
Setup general
Startup delaytime
delaytime after turn on of the bus power
Hardware selection
Adjustment of the used device
Temperature
measurement
Send actual value
•can be switched on/off
•report condition for change of
temperature adjustable from 0,1K to 2Kr
Send actual value cyclic
•can be switched on/off
•times of sending adjustable
Min/max values
•report can be switched on/off
•can be reset manual by communication
object
Sensor configuration
•additional connection of an external
sensor possible
•balance internal/external sensor
adjustable
•balance worth for internal sensor
adjustable
Alarm/Messages
Alarms
•can be switched on/off
•Frost-/Heat alarm
Messages
•can be switched on/off
•Report condition of the Min/Max
temperatures parameterize able
Controller general
Controller type
•Heating
•Cooling
•Heating & Cooling
Priority
Order of the operating modes adjustable
Basis-Setpoint
Reference point of the temperature control
Setpoints
Reference points for operating modes and
controller modes parameterize able
Shift of setpoints
•Max. shift parameterize able
•Scope of the shift parameterize able
•can be saved
Blocking objects
can be used for heating and cooling separately
Guiding
•can be switched on/off
•Min/Max Values parameterize able
•impact to setpoint parameterize able

Technical Manual –Room Temperature Controller SCN-RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Phone: [phone] • Fax: [phone] • [e-mail] • www.mdt.de
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Controller settings
Integrated controller
•2 step control
oHysteresis parameterize able
•PI-control continuous
oMax. value of control variable
oSetting of used system
ofree parameterization of specific
values available
•PI control switching (PWM)
oMax. value of control variable
oSetting of used system
ofree parameterization of specific
values available
oPWM-cycletime parameterize able
•Additional levels available
Switch over heating/cooling
•automatically
•via object
Direction of controller
•normal
•inverted
Table 1: Functional overview
2.6 Settings at the ETS-Software
Selection at the product database:
Manufacturer: MDT Technologies
Product family: Control System
Product type: Room temperature controller
Medium Type: Twisted Pair (TP)
Product name: addicted to the used type, e.g.: SCN-RT1xPx.xx
Order number: addicted to the used type, e.g.: SCN-RT1UP.01
2.7 Starting up
After wiring the allocation of the physical address and the parameterization of every channel follow:
(1) Connect the interface with the bus, e.g. MDT USB interface
(2) set bus power up
(3) Press the programming button at the device(red programming LED lights)
(4) Loading of the physical address out of the ETS-Software by using the interface(red LED goes
out, as well this process was completed successful)
(5) Loading of the application, with requested parameterization
(6) Switch the power supply on
(7) If the device is enabled you can test the requested functions(also possible by using the ETS-
Software)

Technical Manual –Room Temperature Controller SCN-RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Phone: [phone] • Fax: [phone] • [e-mail] • www.mdt.de
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3 Communication objects
3.1 Default settings of the communication objects
The following chart shows the default settings for the communication objects:
Default settings
Nr.
Channel/Input
Function
Length
Priority
C
R
W
T
U
0
Actual temperature
value
Transmit temperature
value
2 Byte
Low
X
X
X
1
Higher message value
Send message
1 Bit
Low
X
X
X
2
Lower message value
Send message
1 Bit
Low
X
X
X
3
Frost alarm
Send alarm
1 Bit
Low
X
X
X
4
Heat alarm
Send alarm
1 Bit
Low
X
X
X
5
External sensor
Read external sensor
2 Byte
Low
X
X
6
Setpoint comfort
Set setpoint
2 Byte
Low
X
X
X
X
7
Manual setpoint value
offset
Reduction/Increase
2 Byte
Low
X
X
8
Control value heating
Send control value
1 Bit
Low
X
X
X
8
Control value heating
Send control value
1 Byte
Low
X
X
X
8
Control value
heating/cooling
Send control value
1 Bit
Low
X
X
X
8
Control value
heating/cooling
Send control value
1 Byte
Low
X
X
X
9
Control value
additional heating
Send control value
1 Bit
Low
X
X
X
10
Control value cooling
Send control value
1 Bit
Low
X
X
X
10
Control value cooling
Send control value
1 Byte
Low
X
X
X
11
Mode comfort
Switch mode
1 Bit
Low
X
X
X
12
Mode night
Switch mode
1 Bit
Low
X
X
X
13
Mode frost/heat
protection
Switch mode
1 Bit
Low
X
X
X
14
Heating disable object
Disable heating
1 Bit
Low
X
X
15
Cooling disable object
Disable cooling
1 Bit
Low
X
X
17
Heating request
Send request
1 Bit
Low
X
X
X
18
Cooling request
Send request
1 Bit
Low
X
X
X
19
Heating/Cooling
switchover
0=Heating
1=Cooling
1 Bit
Low
X
X

Technical Manual –Room Temperature Controller SCN-RT1
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Phone: [phone] • Fax: [phone] • [e-mail] • www.mdt.de
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Table 2: Communication objects –default settings
You can see the default values for the communication objects from the upper chart. According to
requirements the priority of the particular communication objects as well as the flags can be
adjusted by the user. The flags allocates the function of the objects in the programming thereby
stands C for communication, R for Read, W for write, T for transmit and U for update.
* from version 1.2
20
Guiding value
Setpoint adjustment
2 Byte
Low
X
X
X
21
Max memory value
Read memory
2 Byte
Low
X
X
X
X
22
Min memory value
Read memory
2 Byte
Low
X
X
X
X
23
Min/Max memory
reset
Reset memory
1 Bit
Low
X
X
X
24
Reset setpoint value
Parameter read in
1 Bit
Low
X
X
25
DPT_HVAC Status*
Send controller status
1 Byte
Low
X
X
X
28
Error external Sensor
Error message
1 Bit
Low
X
X
X
29
Actual setpoint
Send setpoint
2 Byte
Low
X
X
X
30
DPT_RHCC*
Send controller status
2 Byte
Low
X
X
X
31
Mode selection
Select mode
1 Byte
Low
X
X
X