MDT Technologies SCN-RT2UP.01 User manual

MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
1
3/2015
Manual
MDT Temperature Controller
SCN-RT2UP.01
SCN-RT4UP.01
SCN-RT6REG.01/6AP.01

Technical Manual Temperature Controller
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
2
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 Functions ....................................................................................................................................... 6
2.5 Settings at the ETS-Software ......................................................................................................... 7
2.6 Starting up ..................................................................................................................................... 7
3 Communication objects........................................................................................................................ 8
3.1. Summary and Usage..................................................................................................................... 8
3.2 Default settings of the communication objects .......................................................................... 14
4 Reference ETS-Parameter .................................................................................................................. 16
4.1 General Settings .......................................................................................................................... 16
4.2 Temperature measurement ........................................................................................................ 17
4.3 Alarm/Messages.......................................................................................................................... 20
4.4 Controller general........................................................................................................................ 22
4.4.1 Controller type ..................................................................................................................... 22
4.4.2 Operating modes & Setpoints .............................................................................................. 23
4.4.3 Setpoint offset...................................................................................................................... 29
4.4.4 Blocking objects.................................................................................................................... 31
4.4.5 Heating/Cooling request objects.......................................................................................... 32
4.4.6 Dead zone............................................................................................................................. 33
4.4.7 Flow temperature limit ........................................................................................................ 35
4.5 Controller settings ....................................................................................................................... 36
4.5.1 Control value ........................................................................................................................ 36
4.5.2 PI control continuous ........................................................................................................... 37
4.5.3 PI control switching (PWM).................................................................................................. 40
4.5.4 2-step control (switching)..................................................................................................... 42
4.5.5 Direction of controller .......................................................................................................... 44
4.5.6 Additional settings for heating and cooling ......................................................................... 45
5 Index ................................................................................................................................................... 49
5.1 List of figures ............................................................................................................................... 49
5.2 List of tables................................................................................................................................. 50

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6 Attachment......................................................................................................................................... 51
6.1 Statutory requirements............................................................................................................... 51
6.2 Routine disposal .......................................................................................................................... 51
6.3 Assemblage.................................................................................................................................. 51
6.4 Controller..................................................................................................................................... 52
6.4.1 2-Step control....................................................................................................................... 52
6.4.2 PI-control continuous ........................................................................................................... 53
6.4.3 PI-control switching (PWM) ................................................................................................. 54
6.5 Direction of controller ................................................................................................................. 55
6.6 Datasheet .................................................................................................................................... 55

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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-RT6REG.01 –6-fold Temperature controller, REG
oController type: 2 Step, PI-continuous, PI switching (PWM); MDRC; Measuring of
temperature by external sensors, e.g. SCN-TS1UP.01
SCN-RT6AP.01 –6-fold Temperature controller/sensor, surface mounted
oController type: 2 Step, PI-continuous, PI switching (PWM); surface mounted; Measuring
of temperature by external PT1000 sensors, e.g. SCN-PTST3.01(standard version), SCN-
PTAN3.01(strap on installation), SCN-PTDE3.01(ceiling installation)
SCN-RT4UP.01 - 4-fold Temperature controller/sensor, flush mounted
oController type: 2 Step, PI-continuous, PI switching (PWM); flush mounted; Measuring of
temperature by external PT1000 sensors, e.g. SCN-PTST3.01(standard version), SCN-
PTAN3.01(strap on installation), SCN-PTDE3.01(ceiling installation)
SCN-RT2UP.01 - 2-fold Temperature controller/sensor, flush mounted
oController type: 2 Step, PI-continuous, PI switching (PWM); flush mounted; Measuring of
temperature by external PT1000 sensors, e.g. SCN-PTST3.01(standard version), SCN-
PTAN3.01(strap on installation), SCN-PTDE3.01(ceiling installation)
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, alarms and messages can also be adjusted.
The 6-fold controller has 6 channels; every channel can be deactivated or activated and adjusted
individually. Every channel needs a certain sensor. We have the following external sensors in our
assortment: SCN-PTST3.01, SCN-PTAN3.01 and SCN-PTDE0.01. The SCN-TS1UP.01 can also be used
for measuring.

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2.3 Exemplary circuit diagram
Figure 1: Exemplary circuit diagram SCN-RT6REG.01
Figure 2: Exemplary circuit diagram SCN-RT2UP.01

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Figure 3: Exemplary circuit diagram SCN-RT4UP.01
2.4 Functions
The temperature controller contains of 6 channels. Every channel can capture a temperature and
give out a control value.
The controller contains of 5 different sub menus, which are divided in the following way:
Setup general
General settings can be made at this menu and the used device can be chosen. These
adjustments are only available once and refer to all of the 6 channels.
The following sub menus are for every of the 6 channels available and individual parameterize able:
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.

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2.5 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-RT6xxx.xx
Order number: addicted to the used type, e.g.: SCN-RT6REG.01
2.6 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)

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3 Communication objects
3.1. Summary and Usage
Nr.
Name
Object function
Data type
Direction
Info
Usage
Tip
0
Channel 1
Actual temperature value
DPT 9.001
send
Controller sends
current
temperature
Visu, Display,
Diagosti,…
Communication object is
always shown and sends,
according to the settings, its
current value or can only be
read.
1
Channel 1
Higher message value
DPT 1.001
send
Controller sends
state
Visu, Display,
Diagosti,…
Communication object is
shown when the messages are
active.
2
Channel 1
Lower message value
DPT 1.001
send
Controller sends
state
Visu, Display,
Diagosti,…
Communication object is
shown when the messages are
active.
3
Channel 1
Frost alarm
DPT 1.001
send
Controller sends
state
Visu, Display,
Diagnostic,
additioal stage,…
Communication object is
shown when the alarms are
active.

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4
Channel 1
Heat alarm
DPT 1.001
send
Controller sends
state
Visu, Display,
Diagnostic,
additioal stage…
Communication object is
shown when the alarms are
active.
5
Channel 1
External sensor
DPT 9.001
receive
Controller receives
external
temperature
External
temperature
sensor
Communication object is
shown when the parameter
iteal/eteal seso is
set at least to 10% external
sensor.
6
Channel 1
Setpoint comfort
DPT 9.001
receive
Controller receives
new setpoint
Visu, Control keys,
Central operation
unit
Communication object is
always shown when the
controller is active. A new
setpoint can be set via this
object.
7
Channel 1
Manual setpoint value
offset
DPT 9.002
receive
Controller receives
relative movement
of setpoint
Visu, Display,
Control keys,
Central operation
unit
Communication object is
shown when the parameter
setpoit offset ia is set to 
Byte.
8
Channel 1
Control value heating
DPT 1.001/
DPT 5.001
send
Controller sends
control value
Heating actuator,
actuators
Object is shown when the
controller is set to the heating
mode. DPT depends to the
controller settings.

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8
Channel 1
Control value
heating/cooling
DPT 1.001/
DPT 5.001
send
Controller sends
control value
Heating actuator,
actuators
Object is shown when the
controller is set to heating and
cooling, 2 Pipe system. DPT
depends to the controller
settings.
9
Channel 1
Control value cooling
DPT 1.001/
DPT 5.001
send
Controller sends
control value
Heating actuator,
actuators
Object is shown when the
controller is set to cooling, 2
Pipe system. DPT depends to
the controller settings.
10
Channel 1
Mode comfort
DPT 1.001
receive
Controller
switches operating
mode
Visu, Display,
Control keys,
Central operation
unit
Object is always shown and
switches the operating modes
according to the priority.
11
Channel 1
Mode night
DPT 1.001
receive
Controller
switches operating
mode
Visu, Display,
Control keys,
Central operation
unit
Object is always shown and
switches the operating modes
according to the priority.
12
Channel 1
Mode frost/heat
protection
DPT 1.001
receive
Controller
switches operating
mode
Visu, Display,
Control keys,
Central operation
unit
Object is always shown and
switches the operating modes
according to the priority.

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13
Channel 1
Heating disable object
DPT 1.003
receive
Controller blocks
heating mode
Visu, Display,
Control keys,
Central operation
unit
Can be activated in the
parameters if the controller is
set to heating.
14
Channel 1
Cooling disable object
DPT 1.003
receive
Controller blocks
cooling mode
Visu, Display,
Control keys,
Central operation
unit
Can be activated in the
parameters if the controller is
set to cooling.
15
Channel 1
Heating request
DPT 1.001
send
Controller sends
heating request
Actuator for
switching the
heatig pup…
Can be activated in the
parameters if the controller is
set to heating.
16
Channel 1
Cooling request
DPT 1.001
receive
Controller sends
heating request
Actuator for
switching the
cooling pup…
Can be activated in the
parameters if the controller is
set to cooling.
17
Channel 1
Heating/Cooling
switchover
DPT 1.001
receive
Controller
switches between
heating and
cooling
Visu, Display,
Control keys,
Central operation
unit
Can be activated in the
parameters if the controller is
set to heating and cooling.
18
Channel 1
Max memory value
DPT 9.001
send
Controller sends
maximum value
Visu, Display,
Diagnostic…
Communication object sends
Min/Max values if they are
activated in the parameter.

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19
Channel 1
Min memory value
DPT 9.001
send
Controller sends
minimum value
Visu, Display,
Control keys,
Diagosti…
Communication object sends
Min/Max values if they are
activated in the parameter.
20
Channel 1
Min/Max memory reset
DPT 1.001
receive
Controller resets
Min/Max values
Visu, Display,
Control keys,
Diagosti…
Communication object sends
Min/Max values if they are
activated in the parameter.
21
Channel 1
Reset setpoint value
DPT 1.001
receive
Controller resets
the setpoints to
the parameter
settings
Visu, Display,
Control keys,
Central operation
unit
Communication object is
always shown when the
controller is active.
22
Channel 1
DPT_HVAC Status
-
send
Controller sends
current state
Visu, Display,
Control keys,
Diagosti…
Communication object is
always shown when the
controller is active.
23
Channel 1
Error external Sensor
DPT 1.001
send
Controller sends
current state
Visu, Display,
Control keys,
Diagosti…
Communication object is
always shown when the
controller is active.
24
Channel 1
Actual setpoint
DPT 9.001
send
Controller sends
current setpoint at
a read request
Visu, Display,
Control keys,
Diagosti…
Communication object is
always shown when the
controller is active.

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25
Channel 1
DPT_RHCC
DPT 22.101
send
Controller sends
current state
Visu, Display,
Control keys,
Diagosti…
Communication object is
always shown when the
controller is active.
26
Channel 1
Mode selection
DPT 20.102
receive/
send
Controller
switches
operating mode
and send its
current state
when the
parameter is set
Visu, Display,
Control keys,
Central operation
unit
Communication is alway
shown when the controller is
active. Via the parameter
“ed status o ojet  –
Mode seletio, the sedig
of this object can be activated
and directly evaluated from
visualizations or homeserver.
28
Channel 1
Flow temperature limit
DPT 9.001
receive
Controller limits
the flow
temperature
Visu, Display,
Control keys,
Central operation
unit
Communication is only shown
i fit was activated in the
general settings.
30
Channel 1
Error temperature
sensor
DPT 1.001
send
Controller sends
an error of the
external sensor
Visu, LED-Display,
Diagnostic…
Communication object is
shown when the parameter
iteal/eteal seso is
set at least to 10% external
sensor.
+33
next Channel
Table 1: Overview communication objects

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3.2 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
Channel 1
Actual temperature value*
2 Byte
Low
X
X
X
1
Channel 1
Higher message value
1 Bit
Low
X
X
X
2
Channel 1
Lower message value
1 Bit
Low
X
X
X
3
Channel 1
Frost alarm
1 Bit
Low
X
X
X
4
Channel 1
Heat alarm
1 Bit
Low
X
X
X
5
Channel 1
External sensor
2 Byte
Low
X
X
6
Channel 1
Setpoint comfort
2 Byte
Low
X
X
X
X
7
Channel 1
Manual setpoint value offset
2 Byte
Low
X
X
8
Channel 1
Control value heating
1 Bit
Low
X
X
X
8
Channel 1
Control value heating
1 Byte
Low
X
X
X
8
Channel 1
Control value
heating/cooling
1 Bit
Low
X
X
X
8
Channel 1
Control value
heating/cooling
1 Byte
Low
X
X
X
9
Channel 1
Control value cooling
1 Bit
Low
X
X
X
9
Channel 1
Control value cooling
1 Byte
Low
X
X
X
10
Channel 1
Mode comfort
1 Bit
Low
X
X
X
11
Channel 1
Mode night
1 Bit
Low
X
X
X
12
Channel 1
Mode frost/heat protection
1 Bit
Low
X
X
X
13
Channel 1
Heating disable object
1 Bit
Low
X
X
14
Channel 1
Cooling disable object
1 Bit
Low
X
X
15
Channel 1
Heating request
1 Bit
Low
X
X
X
16
Channel 1
Cooling request
1 Bit
Low
X
X
X
17
Channel 1
Heating/Cooling switchover
1 Bit
Low
X
X
18
Channel 1
Max memory value
2 Byte
Low
X
X
X
X
19
Channel 1
Min memory value
2 Byte
Low
X
X
X
X
20
Channel 1
Min/Max memory reset
1 Bit
Low
X
X
X
21
Channel 1
Reset setpoint value
1 Bit
Low
X
X
22
Channel 1
DPT_HVAC Status
1 Byte
Low
X
X
X
23
Channel 1
Error external Sensor
1 Bit
Low
X
X
X
24
Channel 1
Actual setpoint
2 Byte
Low
X
X
X

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Table 2: Communication objects –default settings
*temperature signal of an external sensor must be connected to this communication object
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.
The communication objects are identical for all channels, but increase their numbers as shown at the
chart. If a channel is deactivated, no objects will be shown for this channel.
25
Channel 1
DPT_RHCC
2 Byte
Low
X
X
X
26
Channel 1
Mode selection
1 Byte
Low
X
X
X
28
Channel 1
Flow temperature limit
2 Byte
Low
X
X
30
Channel 1
Error temperature sensor
1 Bit
Low
X
X
X
+33
next Channel

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4 Reference ETS-Parameter
4.1 General Settings
The following settings are available at the ETS-Software:
Figure 4: General settings
The chart shows the dynamic range of the general settings:
ETS-text
Dynamic range
[default value]
comment
Startup delaytime
0-60s
[0]
Time between an upload and the
functional start of the device
Setpoint frost protection
for all channels
3°C-10°C
[7°C]
Setting of the setpoint for the operating
mode frost protection
Setpoint heat protection
for all channels
25°C-40°C
[35°C]
Setting of the setpoint for the operating
mode heat protection
Flow temperature
15°C-60°C
[35°C]
Setting of the flow temperature limit
Table 3: General settings
The parameter startup timeout adjusts the time between an upload and the functional start of the
device. The used hardware reacts only after expiration of the adjusted time. All input commands
before the startup timeout expire.
Additional the setpoints for the operating modes frost- and heat-protection can be set in this menu.
These setpoints are valid for all channels. Furthermore a flow temperature limit can be set, which is
kept in the channel with activated flow temperature limit.

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The following settings are available for all of the 6 channels. The associated communication objects
are valid for its channel.
4.2 Temperature measurement
The following settings are available at the ETS-Software:
Figure 5: Temperature measurement
The chart shows the dynamic range of the available parameters:
ETS-text
Dynamic range
[default value]
comment
Send actual value after change
of
(not available at SCN-RT6REG)
disable
0,1K - 2,0K
Sending condition for the actual
temperature value
Send actual temperature
cyclically
(not available at SCN-RT6REG)
disable
1 min –60 min
Activation of the cyclically sending of
the temperature value
Send min/max value
disable
Send enable
Activation of the sending of min/max
values
Internal sensor correction value
(value*0,1K)
(not available at SCN-RT6REG)
-50 –50
[0]
Correction of the internal sensor
Internal/external sensor
(not available at SCN-RT6REG)
100% intern
90% intern/ 10% extern
80 % intern/ 20% extern
…
100% extern
Adjustment of the balance between
internal and external sensor
Table 4: Parameter Temperature measurement

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The following settings are only available at the surface mounted and the flush mounted versions,
not for the SCN-RT&REG.01, because this device works only with values which are sent via the bus.
Send actual value after change of
This functions sets when the current temperature value shall be sent. By choosing the setting
disale, o alue ill e sent at all.
Send actual temperature cyclically
You can activate this function by choosing a time. Now, the room temperature controller
sends the current temperature periodically after the adjusted time. This function is
idepedet fo the futio “ed atual alue afte hage of. “o the tepeatue
controller will send its current value also if there is no change of it.
Internal sensor correction value (value*0,1K)
You can correct the measured temperature value by this setting. By choosing a negative
value for this parameter, the measured value will be lowered and by choosing a positive
value, the measured value will be lifted. The value is multiplied by 0,1K, so the current value
can be lowered or lifted up to 5K. This setting is useful, when the sensor was built at an
unfavorable location, e.g. becoming draft or next to a window. When this function is
activated, the temperature controller will also send the corrected values.
All sensors are matched in-plant to 0,1K.
The chart shows the relevant communication object for the temperature value:
Number
Name
Length
Usage
0
Actual temperature value
2 Byte
sends the current temperature value
Table 5: Communication object temperature value
Internal/external sensor
This setting sets the balance between an internal and an external sensor. The setting 100%
intern deactivates any external sensor. By choosing any other setting, an external sensor will
be activated. So, also communication objects for the external are shown. A balance of 100%
extern deactivates the internal sensor and the temperature controller will only note values of
the external sensor.
The communication objects for an activated external sensor are shown at the chart:
Number
Name
Length
Usage
5
External sensor
2 Byte
sends the measured temperature value of the
external sensor
23
Error external sensor
1 Bit
sends an error, when the external sensor sends
no value for more than 30min
Table 6: Communication objects external sensor

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The following settings are available for all devices:
Send min/max value
This function activates the sending and saving of the min/max values. When the function is
atiated  “ed eale, thee ouiatio ojets ill e sho. To ojets fo the
Min and the Max value and one for the reset of the min/max values.
The chart shows the relevant communication objects for this parameter:
Number
Name
Length
Usage
18
Max memory value
2 Byte
sends and saves the maximal temperature
value
19
Min memory value
2 Byte
sends and saves the minimal temperature value
20
Min/Max memory reset
1 Bit
resets the min/max values
Table 7: Communication objects Min/Max values

Technical Manual Temperature Controller
MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1
Tel.: [phone] • Fax: [phone] • [email protected] • www.mdt.de
20
4.3 Alarm/Messages
The following settings are available at the ETS-Software:
Figure 6: Alarm/Messages
The chart shows the dynamic range of the alarm and messages:
ETS-text
Dynamic range
[default value]
comment
Alarm
not active
active
Activation of the alarm function
Frostalarm if value <
3°C-10°C
[7°C]
Dynamic range of the frostalarm
Adjustment possible if alarm is activated
Heatalarm if value >
25°C-40°C
[35°C]
Dynamic range of the heatalarm
Adjustment possible if alarm is activated
Messages
not active
active
Activation of the message function
Message if value >
18°C-40°C
[26°C]
Dynamic range of the upper message
Adjustment possible if messages are
activated
Message if value <
1°C-25°C
[13°C]
Dynamic range of the lower message
Adjustment possible if messages are
activated
Table 8: Parameter Alarm/Messages