Technische Alternative uvr1611 User manual

UVR1611
Vers. A3.17EN
Technische Alternative
elektronische Steuerungsgerätegesellschaft mbH.
A-3872 Amaliendorf, Langestr. 124, Fax [phone]
FREELY PROGRAMMABLE UNIVERSAL
CONTROLLER
The UVR1611 unit is equipped with function modules offering the possibility of free programming
for each system configuration for heating space management. As each function module can be called
repeatedly, complex control systems such as solar systems with multiple collector panels and tanks or
multiple heating circuits controlled by atmospheric conditions can also be realised.
It offers the following features:
16 sensor inputs for KTY10 or PT1000 sensors
(two of them also serving as pulse input and analogue input 4-20mA or 0-10V)
4 speed-adjustable outputs and 7 relay outputs
2 other outputs upgradable via a relay module
Operation via scroll-wheel and large display
2 control outputs 0-10 V separately switchable to PWM
CAN-Bus for data exchange to other and/or additional UVR1611 units
DL-Bus to capture respective sensors and to record data
Infrared interface for software updates

3
NOTICE
This manual was written in order to provide the specialist with both an overview of the various control
possibilities of the unit and its corresponding basic standards. It serves especially as a programming
tool while operating the unit. Even using the TAPPS – system (the „Technische Alternative Planning
and Programming System”) which you can find on our homepage www.ta.co.at,it is sometimes to
know the programming mechanisms of the unit in order to be able to make local changes remotely.
In principle however, TAPPS is still recommended. This enables the specialist to design (= program)
and parameterize the entire functionality in a graphical flow chart. In order to load the data into the
control unit, the boot loader is absolutely necessary.
Example with TAPPS:
The present manual describes exclusively the direct programming of the control unit and does not refer
to TAPPS.

4
Contents:
Planning basics..................................................................................................................6
Basic standards..................................................................................................................7
The basic operation..................................................................................................7
The display..........................................................................................................7
The keys ..............................................................................................................7
The scroll-wheel..................................................................................................8
Terms used ..........................................................................................................8
The user interface..............................................................................................................9
MENU User.............................................................................................................11
MENU Date / Time.................................................................................................13
MENU Measured values overview........................................................................13
MENU Function overview .....................................................................................14
The user interface editor....................................................................................15
Tips and tricks...................................................................................................17
The parameterizing of the inputs.............................................................................18
Special abilities of the inputs ............................................................................20
Connection of an electronic sensor (VFS2-40, RPS0-6) ..................................21
The parameterizing of the ouputs............................................................................22
Particularities of output 14................................................................................24
Particularities of the outputs 15, 16...................................................................25
Anti-Skid Control..............................................................................................25
MENU Functions....................................................................................................26
The basic standards of the function menu.........................................................26
Input variables...................................................................................................29
Output variables ................................................................................................31
Typical function parameter ...............................................................................33
Time programs ..................................................................................................33
Function status ..................................................................................................35
MENU Messages.....................................................................................................36
MENU Network......................................................................................................38
Output variable..................................................................................................39
Input variable ....................................................................................................40
Timeouts............................................................................................................40
Data logging......................................................................................................41
Network nodes ..................................................................................................43
MENU Data administration...................................................................................44
Internal Data administration..............................................................................44
Data exchange with the PC and/or boot loader.................................................45
The description of the function modules.....................................................................47
Solar control.............................................................................................................48
Solar priority ............................................................................................................50
Start function............................................................................................................52
Cooling function.......................................................................................................53
Heating circuit controller .........................................................................................54
Mixer control............................................................................................................59
Comparison ..............................................................................................................60
Load pump................................................................................................................61
Heating requirement.................................................................................................63
Warm water requirement..........................................................................................66
Boiler cascade ..........................................................................................................68
Circulation................................................................................................................70

5
PID control (speed control) ......................................................................................72
Analog function........................................................................................................76
Profile function.........................................................................................................78
Logic function ..........................................................................................................80
Time switch ..............................................................................................................82
Timer ........................................................................................................................84
Synchronisation........................................................................................................87
Heat quantity counter................................................................................................88
Counter .....................................................................................................................90
Maintenance..............................................................................................................91
Function control........................................................................................................92
Typical hydraulics as factory setting...........................................................................94
Factory settings via TAPPS...............................................................................95
Detailled description of the factory setting...............................................................96
The solar part:....................................................................................................96
The heating control unit part:............................................................................98
The load pump section: ...................................................................................100
The burner requirement warm water:..............................................................101
The burner requirement heating: .....................................................................102
Release of the heating circuit pumps:..............................................................104
Installation instructions ..............................................................................................106
Sensor installation ..................................................................................................106
Installing the device................................................................................................108
Cables and network topology.................................................................................109
Electrical connection ..............................................................................................111
Function mode.................................................................................................113
Technical data UVR1611................................................................................113
Quantity delivered ...........................................................................................113
Accessories....................................................................................................................114
TAPPS.............................................................................................................114
Hirel 1611:.......................................................................................................114
CAN I/O module 44 and CAN I/O 35:............................................................114
CAN Monitor: .................................................................................................114
Boot loader BL-NET:......................................................................................114
D-LOGG USB:................................................................................................114
Simulation board: ............................................................................................114
Development set:.............................................................................................114
CAN bus converter:.........................................................................................114
Tips on troubleshooting.................................................................................................115
Maintenance............................................................................................................117
Safety requirements................................................................................................117

6
Planning basics
To ensure efficient programming, the following order has to be observed:
1The basic condition of writing the desired controller functions and its parameterizing is an
accurate hydraulic diagram!
2This diagram must show what should be regulated and how.
3The
sensor positions
are to be defined according to the desired controller functions and drawn
into the diagram.
4The next step consists in providing all sensors and “consumers” with the desired
input or ou
t-
put numbers. As all the sensor inputs and outputs have different characteristics, it is not possi-
ble to provide consecutive numbers. Therefore, the input and output assignement must be made
according to the following description:
Inputs:
All 16 inputs are suitable for standard sensors of the types KTY (2 k) and PT1000 or for
digital inputs. In addition, the following inputs have special functions:
S8: Current loop (4 – 20 mA) or control voltage (0 - 10V=)
S15, S16: Pulse input, such as for volume flow encoder
Signal voltages of more than 5 V at the inputs S1 to S7 and S9 to S16 or more than 10 V at S8
are not allowed.
Outputs (supply voltage side):
A1: Speed-adjustable output (!!!!!!!!!! max. 0.7A !!!!!!!!!!) with integrated interference
filter. It can also be used to regulate the phase-controlled ventilators.
A2, 6, 7: Speed-adjustable outputs for pumps (max. 1A) , no phase controlled modulator
possible
A3: Relay output (closer) for undefined consumers
A4: Relay output with opener and closer for undefined consumers, preferably for valves
without retracting spring. A4 combined with A3 is also suitable for mixer motors.
A5: Relay output – potential-free with opener and closer for burner requirement with
the legally prescribed distance to the supply voltage.
A8, A9: Relay outputs (closer) for undefined consumers, preferably together with mixer
engines, as only one commonly used neutral conductor clamp is available for both
outputs
A10, A11: Relay outputs (A10 with closer, A11 with opener and closer) for undefined con-
sumers, preferably together with mixer engines, as only one commonly used neutral
conductor clamp is available for both outputs
Outputs (protective low voltage side):
Hirel 1, 2: Control lines for a relay module for two other relay outputs A12 and A13, which
can be installed as module in “Slot 1”.
DL (14): DL-Bus as bus link for diverse sensors and/or data recording using boot loader to a
PC. This connection is not only able to be used through the parameterization but
also to activate an additional relay.
0-10 V / PWM (A15, A16): Control output with a standardized voltage level of 0 to 10 V e.g.
for boiler modulation. Switchable to PWM (level approx. 10 V, cycle duration 0.5
ms). Referred to as analogue output in the user software.
5Now the calling of the functions and its parameterizing is effected.

Basics
7
Basic standards
The basic operation
The display
The display consists of four information fields
The top line constantly provides information about the actual output states.
Blank field instead of number 5 = output five has not yet been parameterized
Output five is active, runs in automatic mode and is temporarily switched off
Output five is active, runs in automatic mode and is temporarily switched on
Output five is active, runs in manual mode and is temporarily switched off
Output five is active, runs in manual mode and is switched on at the moment
The second line is the headline for the following menu and/or parameter lines.
The middle display area is the operative range. Within this range the programming, parameterizing
and indicating takes place.
The lowest line exclusively serves to mark the two keys below in order to be able to assign different
functions to it.
The keys
The control unit has two keys below the display. They are constantly assigned with the required func-
tions via the display.
x10 – The changeable value changes for 10 steps each per increment of the scroll wheel.
SCROLLING – This function allows the direct “switch" from one menu level to the same level of the
next menu by means of the scroll wheel
MENU – To switch from the opening image (after starting-up) to the menu
SERVICE – To switch from the function overview (the most important menu for the user) into all
other menus
BACK – The PC switches immediately into the next-higher menu level
CANCEL - The current entry or change of a value is stopped

Basics
8
The scroll-wheel
By means of the scroll-wheel, the selected menu can be gone through by the right pointer in the dis-
play. Small upward or downward showing arrows symbolize the possibility of further menu lines
above or below the visible display range.
If a parameter is to be changed, the pointer must be put in the desired position. Press the wheel to
change the background lighting of the scroll wheel frame to orange to indicate programming. Now the
value can be adjusted using the wheel (possibly also with "* 10"). You may cancel at any time by
pressing CANCEL. Press the wheel again to turn the screen light green and take over the parameter.
Terms used
Operating system = The software (operating system) of the control unit (e.g.: version A3.17EN)
with indicator of the user language
Boot loader = Accessory equipment for data transfer between control unit and PC
Boot sector = Protected storage area in the processor containing a basic menu for “auto-
programming" of the chip (e.g.: B2.00)
CAN-Bus = Data bus for data exchange within the unit family
Function data = Customized programming and parameterizing
Function module /Function /Module = Available functions (e.g.: solar thermal control), which
constitute the control characteristics.
Infrared interface – CAN bus on infrared basis (below the two keys) allowing a slack connection
to the boot loader
Measuring data = Measured values, output states, results of computation such as kW and others

Main menu
9
The user interface
After starting up, the display indicates this menu.
TECHN. ALTERNATIVE
----------------------
Homepage: www.ta.co.at
----------------------
UVR1611
Operat.Syst: Ax.xxEN
Operating system: Version number of the software. The latest software (higher number) is available for
download under http://www.ta.co.at. It can be transferred to the control unit by means of accessory
equipment – the boot loader.
The key MENU offers an entrance to the unit menu:
MENU
----------------------
Version
User
Date/Time
Meas.Val.Overview
Function Overview and by scrolling downwards:
Inputs
Outputs
Functions
Messages
Network
Data Administration

Main menu
10
Version – shows only the same indication as after the starting up - i.e. the operating system of the unit.
User – This menu permits the adjustment of the control level, the indication contrast and the back-
ground lighting as well as the entrance into a so-called “User interface editor”, which allows the crea-
tion of an own menu surface.
Date / Time – To set the date and time. It is also possible to switch between normal time and summer
time.
Measured Values Overview – To display all measured values and network inputs in a table.
Function Overview – All important information and parameters (e.g.: ambient temperature) of the
determined function modules are written by the programmer (specialist) in an editor (“User interface
editor”) and displayed here clearly. The computer switches automatically to this overview after a few
minutes, since it is the most important control panel for the user.
Inputs - This menu offers an exact overview of all input values. Furthermore, parameters for all inputs
are set here. For details, see chapter “Parameterizing the inputs”.
Outputs - For the complete parameterizing and manual operation of all outputs. For details, see chap-
ter “Parameterizing the outputs”.
Functions - This is the menu where all function modules of use are listed. Also, the control tasks and
all corresponding parameters are specified here.
Messages – Events determined by the programmer via this menu can trigger status and error messages
as well as an alarm tone.
Network – In this menu, all settings (node number, network in- and outputs, …) concerning the inte-
gration of the control unit in a CAN open bus network are defined.
Data Administration – This menu contains for the specialist all commands for the data administration
and protection as well as for an update of the operating system.

Menu User
11
MENU User
Here the following entries are listed:
USER
----------------------
OPERATING MODE:
Client
Technician
Expert 
and by scrolling downwards:
DISPLAY:
Contrast: 41
Brightness: 10
Illuminat. Off after
deactivated 00 sec.
Automatic Switch to
Funct.Overview: yes
USER INTERF.EDIT
DATE / TIME:
Automatic Time Switch
Normal/Summer: yes
Time Since Leaving
the Expert Level:
0 Days
USER INTERLOCK:
Parameter: yes
Outputs: yes
SIMULATION: no
EXPERT CODE
CHANGE TO: 0 0 0 0
Client - All indication possibilities, but only the most important settings are permitted.
Technician – In addition, all the settings are permitted. Access only possible via a key number. This
number can be detected by solving a "little riddle” hidden in the manual.
Expert – In addition, the programming of all functions is possible. The necessary key number is only
passed on to trained personnel by email or by telephone.
DISPLAY: Contrast – Adaptation of the display contrast to the lighting conditions.

Menu User
12
DISPLAY: Brightness – The display has a background lighting, which is integrated in the circuit so
that it does not need additional energy. The attenuation of the 12V relays to the 5V computer tension
in many devices is transformed into heat, but in case of the UVR1611 also into light! Thus disconnect-
ing does not save energy. The intensity of the background lighting is variable and can be switched off
after an adjustable time, while no control element is used.
DISPLAY: Automatic Switching to Overview of Functions – In the user surface the most important
information for the user is listed in a overview of functions. This command can be used to activate an
automatic switch when no control element has been used for several minutes.
USER INTERFACE EDITOR: Press the scroll-wheel to open an editor menu to program the dialogue
(the overview of functions) between control unit and user.
DATE / TIME: Automatic Switch Normal / Summer time - This command allows the automatic
switching between summer and normal time.
Time Since Leaving the Expert Level: - A negligent passing on of the expert key number often leads
to changing of important parameters and linkages by unauthorized persons. This function allows you
to check.
USER INTERLOCK: Parameter – If set to yes, the user is not allowed to change any of the parame-
ters (exception: all parameters in the user menu and outputs (MANUAL / AUTO)).
USER INTERLOCK: Outputs – If parameter and the outputs are set to yes, the output status cannot
be changed anymore by the user.
SIMULATION: option to activate the simulation mode (in expert mode only):
no average determination of the outside temperature in heating circuit control
inputs defined as PT1000 sensors are measured as KTY
no RAS evaluation
The simulation mode is ended automatically when closing the expert level.
CHANGE EXPERT KEY NUMBER TO: - Change the ex works key number. Without knowledge of
this number no read-out of the program (function data) is possible later on.
Under normal conditions, the control unit automatically returns to the user mode two hours after the
last key actuation. Since this is unwanted in devices used for programming or test purposes, the key
number 0 0 0 0 blocks the resetting.
WARNING: The loss of the selected key number can only be cancelled by resetting to the factory
setting – under complete loss of the function data.

Menu Date/Timer
Menu Measured values overview
13
MENU Date / Time
Here the following entries are listed:
DATE / TIME
----------------------
Friday
24.04. 2009
Normal time: 00 : 00
All values can be selected and changed accordingly by means of the scroll-wheel (pressing the wheel -
frame = orange – change value, possibly with the help of the key “*10” – pressing the wheel). The date
and time function has a power reverse of approximately three days in case of a blackout. The indica-
tion of the " normal time“ corresponds to the winter time. The switch to the summer time is possible
manually or automatically (see user menu).
MENU Measured values overview
In this menu, all entries of the measured values are listed in a table:
MEAS.VAL.OVERVIEW
----------------------
1: 60.3 °C 27.6 °C
3: 49.2 °C 88.4 °C
5: 29.0 °C 47.5 °C
…
…
…
NETWORK INP.:
1:OFF ON
17: 25.4 °C 10.6°C
In other words, the temperature at sensor 1 is 60.3°C, the one at sensor 2 is 27.6°C, etc.
If there is a network connection to other devices, the analogue values and digital conditions of the
defined network inputs are subsequently displayed too.
In the example, network input 1 (=digital input 1) is in the "OFF" state, network input 2 is in the "ON"
state, network input 17 (= analogue input 1) is equal to 25.4°C and network input 18 is equal to
10.6°C.

Menu Function overview
14
MENU Function overview
All of the function modules offer a wide range of information, measurement values, and parameters
that can be viewed via the menu "Functions." To give users a quick overview of the main settings,
experts can use the "user interface editor" to display all of the information that users need to see from
all the menus. This information later appears in the menu "Function overview." Only the most impor-
tant information and parameters should be entered in the menu "Function overview," and otherwise the
overview would simply be too long. In other words, this menu is by far the most important interface to
users.
The following display is an example of the system with one heater circulation, one heat counter and a
chimney sweep function:
HEAT.CIR.1 F: 5
OPERAT.: TIME/AUTO
T.Room LOWER: 15 °C
T.Room NORMAL: 20 °C
TIME PROG.:
----------------------
CH.SWEEP F: 9
FUNCTION START
Status: OFF
Tot.Runtime: 0 Min
----------------------
HQC F:13
POWER: 6.81 kW
HEAT QUANT.:
544.7 kWh
The controller automatically switches from any menu to the function overview when it is switched on
or if no operator's control is used for a few minutes, provided that the automatic option has been acti-
vated in the user menu (recommended).
Code for Technicians:
In order to enable all of the setting parameters, open the function "User" in the device’s basic menu
and then select "Technician". Enter the product of 26as the code!

Menu Function overview
15
The user interface editor
To keep the dialogue between users and the controller as simple as possible, an overview menu is
automatically provided to present the most essential information that users need to know from the wide
array of information available. The FUNCTION OVERVIEW serves that purpose in this device.
Experts can use the "user interface editor" at any time to create this overview. The dialogue is compli-
cated in accordance with the scope of information as to cover; the PC user interface TAPPS simplifies
it. We recommend that you use it in any case to provide an easy-to-follow overview of the most impor-
tant information that users need.
The command can be found under the entry "USER INTERF. EDIT" in the menu USER. Once the
menu is open, the cursor will be to the left of the display. Press the scroll wheel to open it and then
select from the following commands:
S... A source can be entered in the following dialogue for the entry. The first entry from a
"source" always begins with this command. The next source command closes the previous
one and opens a new one.
A... If the value in the following entry can be changed, users may also make these changes.
User area A
B… --- " --- User area B
C… --- " --- User area C
T... If the value in the following entry can be changed, only technicians, but not users may
make these changes.
E... If the value in the following entry can be changed, experts may make these changes. Only
experts and technicians can see this entry, which is hidden for users.
>... Enter lines. About your current position (line), information is to be entered.
<... Delete lines. Information in and below your current line is to be deleted.
-... Empty line that only appears in the editor; and entry can be made here at any point.
User areas A, B, and C are only important if you are using the CAN monitor. For the unit itself, it does
not matter whether the entry is made with A, B, or C.
Assumption: A house with three apartments (three heating circuits in one control unit), each of which
has its own CAN monitor:
Each of the three parties should only be able to access its own heating circuit; therefore, the first heat-
ing circuit is programmed for user area A in the function overview, while the second one is pro-
grammed for B and the third one for C. Experts can set the user level (such as A) on the CAN monitor.
This ensures that user A only sees that heating circuit on the CAN monitor.

Menu Function overview
16
Programming example:
The example we will start with in the function overview is the date, the time (both of which users can
change), and the collector temperature. Enter the command S(source). Now, the display shows:
S User
User is a special feature as it does not have anything to do with commands or entries and is the only
source information that does not produce a heading. It only serves as an indication of the date and time
(summertime, wintertime). Enter Ain the next line after you have entered the source of the informa-
tion. Now the user can change the value. The current date will immediately be displayed.
S User
A Fr. 24.04.2009
When Ais entered in the next line, the date appears again. It can be set to summertime or wintertime,
depending on the date. Now, the current time appears in the function overview next term (such as
summertime). Now, the display shows:
S User
A Fr. 24.04.2009
A Summertime:
Use the command Sto enter the collector temperature, but instead of User enter Input, and this infor-
mation is in the input menu:
S User
A Fr. 24.04.2009
A Summertime:
S Input
Every time the command Sis entered, the function overview displays a new bar across the width of the
display indicating the new function along with a heading (in this example: input). Tis in entered in the
next line to set the collector temperature. It does not matter whether A,Eor Tis selected for informa-
tion that cannot be changed, such as collector temperature. In case of doubt (can it really not be
changed?), select T.
S User
A Fr. 24.04.2009 Date
A Summertime: Time
S Input Bar and heading INPUTS
T 1: T.Collector The information (temperature) is always displayed for this purpose.
The function overview should now look as follows:
Fr. 24. 04. 2009
Summertime: 13:08
---------------------
INPUTS
1: T.Collector
86.7 °C

Menu Function overview
17
Tips and tricks
The commands Delete < and Insert > acquire the inputs of the number of lines.
The overview is all the more useful for users if the information is provided in a proper sequence.
Begin with the functions for maintenance and control of the heater.
Each source command Sinserts a separation bar in the function overview and the name of the
"source" and is used whenever information is to be added for an additional function. In other
words, Sis always at the beginning of any function.
If no new source command is set, the only selection in the subsequent lines concerns information
for the previously inserted function.
Select a device input output to display the respective values automatically (temperature, automatic
/ manual) in the function overview as headings.
When entering outputs assigned to mixtures, proceed in descending order (such as makes or 8.9
before 8).
Entries of INPUT or OUTPUT VARIABLES are admissible and do help users reach this menu
directly in the function overview, but do not provide users with any truly valuable information. In
other words, they can be confusing and should not be used. In addition,
With any function is called (via S), the heading of the selected function that allows the user a
direct entrance into the function is always automatically entered in the overview. Users can thus
reach all the areas of the selected function from the overview.
All of the entries concerned are automatically deleted when the expert deletes this function in the
menu Functions or turns it into a different function.
A set monitoring function of the system from the “messages” module is always entered at the start
of the function overview, but only if it is actually active.
To make sure that the function overview truly provides an overview, you should only enter the
most important information.
Only a few parameters (mainly from the heating circuit control function) should be set by the user.
We thus recommend that you use command A(user may change value) sparingly.
Parameters that can be changed (nominal values) cannot be changed in the function overview (nor
in the functions themselves) if these nominal values are transferred from another function via
INPUT VARIABLE.
Users only see "one level up" -- in other words, the information stored with the commands A(B,
C) and T. Only experts see the information marked with E (expert), but experts are also not able to
change this information.

Menu Inputs
18
The parameterizing of the inputs
The menu "Inputs“ primarily serves as overview over the measured values of the inputs and/or sensors.
Furthermore, it allows the expert the parameterizing of all used inputs if employed the following pro-
cedure:
The line “Inputs” has already been selected and then pressed the scroll-wheel. Hereby the indication
example is as follows:
1: T.Collector The temperature of the collector is currently
78.3 °C PAR? 78.3°C etc.
2: T.Warm Water1
45.8 °C PAR?
3: T.Warm Water2
61.2 °C PAR?
4: ----- Input 4 has to be set before
unused PAR?
In the above indication example the sensor inputs 1 to 3 were already defined by the expert, while the
input 4 is not yet fixed. In order to assign e.g. the tank sensor buffer, bottom to the input 4 the arrow
has to be induced to the corresponding entrance into the parameterizing level PAR by means of the
scroll-wheel. By pressing the wheel the entrance is effected and the indication "TYPE unused” ap-
pears.
First, it has to be determined which basic characteristic (TYPE) the sensor owns. Possible selections:
Unused = The input is not used
ANALOG = Temperature, ambient temp., radiation sensors and others
DIGITAL = Direct control inlet (possible for each input!)
PULSE = Volume flow encoder (only for the inputs 15.16)
After having selected the type (according to example ANALOG; as it represents the analog measured
variable "Temperature") all available parameter lines are faded in.
Indication example:
TYPE: ANALOG
MEAS VAR: Temperat.
DESIGNATION
GROUP: General
DES: -------
SENSOR: KTY 10
SENSOR CHECK: no
SENSOR CORR: 0.0 K
MEAN VAL: 1.0 Sec
A temperature sensor has the measured variable Temperat. which is already faded in. A radiation
sensor would need the measured value Solar Rad..

Menu Inputs
19
In the next step the name (designator) Buffer, bottom is to be assigned to the input 4. To do so, superset
“designator groups” were specified such as General, Producer, Consumer, Pipe, Climate and others.
General is a group which had to be taken over from old operating systems (< A1.21). Many names out
of it are represented also in the other groups. T.Buffer.L is put down in the group Consumer.
When selecting the "designator“ the computer suggests different texts with sequential index up to 9 by
scrolling forward. T.Buffer.C2). Instead of the “0” the index is faded out (e.g.: T.Buffer.C). In order to
proceed quickly from one designator to the next, the key (x10) must be pressed at the same time. Ac-
cording to our example we select T.Buffer.L.
Indication example:
TYPE: ANALOG
MEAS VAR: Temperat.
DESIGNATION
GROUP: Consumer
DES: T.Buffer.L
SENSOR: KTY
SENSOR CHECK: no
SENSOR CORR: 0.0 K
MEAN VAL: 1.0 Sec
Under "SENSOR“ the sensor type has to be specified. Possible selections are: RAS for the ambient
temperature sensor, KTY 10 and Pt 1000 for the standard temperature sensor.
If a short circuit and/or interruption occurs, an active "SENSOR CHECK" issues automatically en
error message in the function overview. Thereby the status OFF for a correctly working sensor and ON
for a defect (KS or UB) is additionally available. As the sensor status can also be set as source of a
input variable (see function modules), it is thereby possible to react accordingly if e.g. the external
sensor fails.
If there is a “SENSOR CORR“ such as 0.5K and a measured temperature of 60.0°C, 60.5°C is indi-
cated. This corrected value is then used also internally for all calculations.
“MEAN VAL“ means the temporal averaging of the measured values. Calculating a mean of 0.3 sec-
onds leads to an extremely rapid reaction of the display and the unit. However, this can be expected to
cause fluctuations of the value. A large mean slows everything down and is only recommended for the
sensors for the heat counter. For simple measurements, around 1 – 3- sec. should be selected, for the
provision of hygienic warm water with the ultra-speed sensor 0.3 – 0.5 sec.

Menu Inputs
20
Special abilities of the inputs
The inputs also permit as measured analogue variable Voltage including the necessary scaling. By this
the determination of the value range is to be effected with a separate indication for the limit of the
minimum and maximum input signal.
For program reasons, the same configuration options are available with all inputs for the voltage meas-
urement value.
The following points must therefore be taken into account:
Inputs 1-7 and 9-16 can process a maximum voltage of 5 volts
The heat quantity counter function cannot establish the flow for inputs 15 and 16 and not from a
voltage signal.
Input 8 also allows current and resistance as measurement.
The process values of voltage,current and resistance are processed as dimensionless values.
Example:
TYPE: ANALOG
MEAS VAR: Voltage
PROC VAR: Voltage
DESIGNATION
GROUP: General
DES: Level
SCALING:
0.00V : 0 Specification of the value range using scaling
10.00V : 100
MEAN VAL: 1.0 Sec The calculated voltage rate is averaged over 1 sec.
In addition, the inputs 15 and 16 are able to detect faster pulses (pulse duration min. of 50 ms, pause
of min. 50 ms). Thereby they are suitable as inputs for volume flow encoders.
The parameterizing of a pulse input leads to the following indication:
TYPE: PULSE
MEAS VAR: Flow
DESIGNATION
GROUP: General
DES: Solar Flow
QUOTIENT: 0.5 l/Pls Per each 0.5 litres a pulse is received
MEAN VAL: 1.0 Sec The calculated flow rate is averaged over 1 sec.
When selecting the measured variable Flow, also the “QUOTIENT” is to be entered. It describes
which flow rate creates a pulse. Some of the function modules such as the heat quantity counter have
the ability to directly handle these pulses. The control unit calculates at the same time the effective
flow as number by putting together the received pulses, the quotient and the calculation of a mean.
This number is available as information also internally. All functions linked with pulse input decide
independently on which pulses or flow rate they want to receive as numerical value.