catec WSC11 Instructions For Use Manual
Instructions for Use
021774/07/14
Weather Station Compact WSC11
4.9056.10.00x
2 - 40 021774/07/14
Safety Instructions
Before operating with or at the device/product, read through the operating instructions.
This manual contains instructions which should be followed on mounting, start-up, and operation.
A non-observance might cause:
- failure of important functions
- endangerment of persons by electrical or mechanical effect
- damage to objects
Mounting, electrical connection and wiring of the device/product must be carried out only by a qualified
technician who is familiar with and observes the engineering regulations, provisions and standards applicable in
each case.
Repairs and maintenance may only be carried out by trained staff or Adolf Thies GmbH & Co. KG. Only
components and spare parts supplied and/or recommended by Adolf Thies GmbH & Co. KG should be used
for repairs.
Electrical devices/products must be mounted and wired only in a voltage-free state.
Adolf Thies GmbH & Co KG guarantees proper functioning of the device/products provided that no
modifications have been made to the mechanics, electronics or software, and that the following points are
observed:
All information, warnings and instructions for use included in these operating instructions must be taken into
account and observed as this is essential to ensure trouble-free operation and a safe condition of the measuring
system / device / product.
The device / product is designed for a specific application as described in these operating instructions.
The device / product should be operated with the accessories and consumables supplied and/or recommended
by Adolf Thies GmbH & Co KG .
Recommendation: As it is possible that each measuring system / device / product may, under certain conditions,
and in rare cases, may also output erroneous measuring values, it is recommended using redundant systems
with plausibility checks for security-relevant applications.
Environment
As a longstanding manufacturer of sensors Adolf Thies GmbH & Co KG is committed to the
objectives of environmental protection and is therefore willing to take back all supplied
products governed by the provisions of "ElektroG" (German Electrical and Electronic
Equipment Act) and to perform environmentally compatible disposal and recycling. We are
prepared to take back all Thies products concerned free of charge if returned to Thies by our
customers carriage-paid.
Make sure you retain packaging for storage or transport of products. Should packaging
however no longer be required, please arrange for recycling as the packaging materials are
designed to be recycled.
Documentation
© Copyright Adolf Thies GmbH & Co KG, Göttingen / Germany
Although these operating instruction has been drawn up with due care, Adolf Thies GmbH & Co KG can accept
no liability whatsoever for any technical and typographical errors or omissions in this document that might
remain.
We can accept no liability whatsoever for any losses arising from the information contained in this document.
Subject to modification in terms of content.
The device / product should not be passed on without the/these operating instructions.
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Contents
1 Device version ........................................................................................................................... 5
2 Application ................................................................................................................................. 5
3 Structure / Mode of operation .................................................................................................... 6
4 Installation of COMPACT WSC11 Weather Station ................................................................... 8
4.1 Selection of installation site ................................................................................................. 8
4.2 Mechanical installation ................................................................ ........................................ 9
4.2.1 Alignment to north....................................................................................................... 10
4.3 Electrical installation .......................................................................................................... 11
4.3.1 Cable, cable preparation, connector installation .......................................................... 11
4.3.2 Diagram of connections .............................................................................................. 12
4.3.3 Connection using cable 509 584 / 509 585 (optional accessory)................................. 12
5 Maintenance ............................................................................................................................ 13
6 Interface .................................................................................................................................. 14
6.1 Command interpreter THIES ................................................................ ............................. 14
6.1.1 Data telegrams ........................................................................................................... 15
6.2 Command interpreter MODBUS RTU ................................................................................ 19
6.2.1 Measuring values (Input Register) .............................................................................. 20
6.2.2 Commands (Holding Register) .................................................................................... 24
6.3 Commands and description ............................................................................................... 25
6.3.1 Command AI ............................................................................................................... 25
6.3.2 Command BR ............................................................................................................. 26
6.3.3 Command CI .............................................................................................................. 26
6.3.4 Command DC ............................................................................................................. 27
6.3.5 Command DO ................................................................................................ ............. 27
6.3.6 Command FB ............................................................................................................. 27
6.3.7 Command ID .............................................................................................................. 27
6.3.8 Command KY ............................................................................................................. 28
6.3.9 Command LC ............................................................................................................. 28
6.3.10 Command RS ................................................................................................ .......... 29
6.3.11 Command SH ................................................................................................ .......... 29
6.3.12 Command SV .......................................................................................................... 30
6.3.13 Command TR .......................................................................................................... 30
6.3.14 Command TT .......................................................................................................... 31
6.3.15 Command TZ .......................................................................................................... 31
7 LED signals ............................................................................................................................. 32
8 Technical data ......................................................................................................................... 33
9 Dimension drawing [in mm] ..................................................................................................... 36
10 Accessories (optional) .......................................................................................................... 37
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11 EC-Declaration of Conformity ............................................................................................... 38
Tables
Table 1 : Status word ..................................................................................................................... 16
Table 2 : Measured value telegram ................................................................................................ 18
Table 3 : Sensor data telegram ...................................................................................................... 19
Table 4 : MODBUS Frame ............................................................................................................. 19
Table 5: MODBUS Exceptions ....................................................................................................... 20
Table 6 : MODBUS Input Register .................................................................................................. 23
Table 7 : List of commands ............................................................................................................ 25
Figures
Figure 1 : LEDs .............................................................................................................................. 32
Figure 2 : Spectrum of brightness sensors ..................................................................................... 35
Figure 3 : Directional characteristics of brightness sensors ............................................................ 35
Figure 4 : Spectrum for global irradiance sensor ............................................................................ 36
Instructions for use
These instructions for use describe all application and adjustment options for the device.
These detailed instructions allow users to modify the factory settings to their needs via the serial
interface of the Weather Station Compact WSC11.
Scope of supply
1 Weather Station Compact WSC11.
1 Copy of the instructions for uses.
For assisting the parameter settings and/or special configurations there is our cost-free Device Utility
Tool art.-no. 9.1700.81.000 available for you for download.
Please send a short e-mail to info@thiesclima.com, keyword “Utility Tool WSC 11” in the subject
heading, as well as your sender information and our order number / invoice number.
We will then let you have your log-in for the download.
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1 Device version
Designation
Order No.
Output
terminal
Data format
Operating voltage
WEATHER STATION
COMPACT WSC11
4.9056.10.000
1 x RS485
Data in ASCII format
(command interpreter:
THIES)
18...30V DC
18...28V AC
WETTERSTATION
COMPACT WSC11
4.9056.10.001
1 x RS485
Data in binary format
(command interpreter:
MODBUS RTU)
18...30V DC
18...28V AC
2 Application
The WEATHER STATION COMPACT WSC11 is designed for use in building services automation
systems (e.g. shade protection control). The WSC11 features the following measured variables:
Wind speed.
Wind direction.
4 x brightness (north / east / south / west).
Twilight.
Global irradiance.
Precipitation.
Air temperature.
Absolute air pressure.
Relative air pressure.
Time / date.
Geostationary data (local altitude, longitude and latitude).
Position of the sun (elevation / azimuth).
Relative air humidity.
Absolute humidity.
Dew-point temperature.
Inside temperature of housing.
The interface to the device is digital and consists of an RS485 interface in half-duplex mode. Together
with ID-based communications the interface allows the Weather Station to be operated in a bus. Two
data protocols are available:
ASCII (THIES- format).
Binary (MODBUS RTU).
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3 Structure / Mode of operation
Wind speed / wind direction:
Wind measurement is based on the hot wire principle. The underside of the housing is equipped with a
heated cylindrical sensor. A PID controller adjusts the temperature of the cylinder to a temperature that
is constantly increased in relation to the environment. The supplied heat energy is a measure of wind
speed.
The metal cylinder contains four temperature-measuring resistors. These resistors are thermally
coupled with the cylinder and positioned according to the 4 points of the compass. When an incident
flow affects the cylinder as a function of the wind direction, this is accompanied by a temperature
gradient which is registered by the measuring resistors. The relationships between the 4 temperature
values are used to calculate the wind direction.
In case the wind direction cannot be determined because the wind velocity is 0m/s, the value is set to
0. Wind from the north is displayed with 360°.
Brightness:
The brightness measurement is carried out via 4 Silicium photo sensors, which are aligned to the 4
cardinal directions in the mean elevation angle (40°).
Twilight:
Twilight means the light diffusion in the atmosphere, which arises with the smooth transition between
day and night before the beginning or after the end of day.
i.e., the solar disc is not visible.
The twilight is direction-independent.
It is calculated from the sum of the 4 measuring values of the direction-independent brightness
sensors.
A change to the mean value from the 4 brightness values is possible by command.
Global irradiance:
A silicon PIN photodiode is used to measure global irradiance. The sensor is positioned horizontally
and registers the diurnal values of the solar irradiation intensity.
Precipitation:
The detection of precipitation is based on capacitance measurement, i.e. the capacity of the sensor
surface varies when wet. The sensor is installed in the housing cover. An integrated heating system
adjusts the sensor area to an overtemperature in relation to the ambient temperature. This
overtemperature (approx. 2K) prevents bedewing of the sensor surface. The thermal output is
increased with precipitation. This accelerates drying of the sensor, allowing the time at which
precipitation ended to be identified more accurately.
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Air temperature:
A PT1000 measuring resistor is used to measure the air temperature. The sensor is mounted on a
flexible printed board and positioned in the lower section of the housing.
Air pressure:
Absolute air pressure is measured with a piezoresistive MEMS sensor.
To make a meaningful comparison between air pressure values simultaneously measured at different
locations, they need to be converted to a common datum (height above sea level). The calculation is
referred to the height above sea level (QNH) according to the international altitude formula (DIN
ISO2533).
Ph = air pressure at local altitude
Pb = air pressure at height above sea level
= -0065K/m
gn = 9.80665m/s
2
R = 287.05287m2/K/s2
Tb = 288.15K
The station height, required for the calculation, can be entered manually by the Command SH, or can
be determined automatically by GPS.
If you want to achieve an accuracy of 0.1hPa, referred to sea level, the local altitude (altitude of the
baro transmitter) must be given up to an accuracy of 0.8m.
Time / date and geostationary data:
The Weather Station has a GPS receiver with a built-in RTC. This allows it to receive the position of
the Weather Station (degree of longitude/latitude, local altitude) time (UTC) and date. The GPS
receiver does not need alignment.
The built-in RTC (Real Time Clock) is buffered with a backup capacitor and retains its data without a
voltage supply for a period of minimum 3 days.
Position of the sun (elevation / azimuth):
On the basis of the GPS data the current sun position is calculated every second.
Humidity measurement:
A built-in hygro-thermosensor is used to measure humidity levels. The sensor has a small air exchange
volume thanks to its compact design and responds to changes in humidity in seconds.
A software module uses the relative humidity and air temperature to calculate absolute humidity and
the dew-point temperature.
R
g
T
b
n
b
hphp
)1()(
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Inside temperature of housing:
A silicon temperature sensor measures the temperature inside the housing.
GPS-Receiver:
The weather station has a GPS receiver with integrated RTC (Real Time Clock) for receiving the
position of the weather station, and time + date (UTC).
An alignment of the GPS receiver is not necessary.
The integrated RTC is buffered for a period of 3 days.
General information:
After activation of the WSC11 the first satellite data are available after approx. 2.5min.
When receiving the signals from one satellite: time with an accuracy of < 1µs.
When receiving the signals from three satellites: position with an accuracy of < 20m
When receiving the signals from four satellites: altitude, referred to the WGS84-
ellipsoid, with an accuracy < 30m
4 Installation of COMPACT WSC11 Weather Station
Please note:
The working position of the COMPACT WSC11 Weather Station is
horizontal (plug connection underneath).
During installation, de-installation, transport or maintenance of the
COMPACT WSC11 Weather Station make sure that no water gets
into the device and connector.
4.1 Selection of installation site
An exposed position should be selected for this site. Measurement properties should not be influenced
by light reflections, cast shadows or the device being positioned in the lee of the wind. Protection
against lightning and overvoltages should also be provided by the customer.
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4.2 Mechanical installation
The intended installation of the Weather Station WSC11 requires the use of a pipe socket / pipe
with an outside diameter of ≤25mm. The inside diameter must be ≥19mm to admit the
connector and cable.
Tool:
Hexagon socket wrench SW2mm
(socket wrench).
Procedure:
1. Push cable/plug connection
through the bore hole of the mast,
tube, bracket etc.
2. Put WSC11 on mast, tube.
3. Align WSC11 to “north”.
(Procedure see chapter 4.2.1).
4. Secure WSC11 by the M4hexagon socket screw.
Attention:
The hexagon
socket screw
is to be
tightened by
max. 0.6Nm.
When using the
mounting angel article no. 509276 (see
chapter accessories) the guide angles
must be removed, see fig.
The mounting angle is not included in
delivery.
Remark: Tube and mounting angle are not included in delivery.
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4.2.1 Alignment to north
For the exact determination of wind- and brightness direction the WEATHER STATION COMPACT
WSC11 must be mounted in north alignment (geographic north).
The hexagon socket screw serves as
north marking (N)
Tool:
Hexagon socket wrench SW2mm
(socket wrench).
Procedure:
1. Detect a prominent object in the
surrounding area (tree, building
etc.) in north direction by means of
a compass.
2. Via the north marking (N) and an
imaginary north-south axis the
weather station is to be located on
the prominent object.
3. Align weather station.
The north marking must indicate to
the geographic north.
4. In case of match the weather
station is to be secured by an M4hexagon socket screw.
Attention:
The hexagon socket
screw is to be tightened
by max. 0.6Nm.
Remark:
With the north alignment by means of a compass, the local variation (deviation in direction of a
compass needle from the true north direction) by interfering magnetic fields, and magnetic field
influences by hardware and electric cable are to be considered.
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4.3 Electrical installation
The COMPACT WSC11 Weather Station is equipped with a 7-pin plug for electrical connection. A
cable socket (mating connector) is included in the scope of supply.
4.3.1 Cable, cable preparation, connector installation
The cable to be used for connection should have the following properties:
5 cores, core cross-section max. 0.14mm², cable diameter max. 5.0mm, resistant to ultraviolet rays,
overall shielding.
Note:
A prepared connecting cable is available for the COMPACT WSC11 Weather Station
as an optional accessory.
Cable socket, type: Binder, series 711
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4.3.2 Diagram of connections
Order No.
4.9056.10.00x
View of
solder terminal
of mating connector
(cable socket)
2
4 6 3
5
1
7
* With long transmission paths connection to the GND of data acquisition may reduce their susceptibility to
interference.
Important:
* Do not connect DATA_GND to the supply voltage-GND.
4.3.3 Connection using cable 509 584 / 509 585 (optional accessory)
PIN
Core colour
Function
1
WHITE
NC 2 BROWN
* DATA _ GND
3
GREEN
DATA + 4 YELLOW
DATA -
5
GREY
NC
6
PINK
+ power 18...30V DC / 18...28V AC
7
BLUE
- power 18...30V DC / 18...28V AC
* With long transmission paths connection to the GND of data acquisition may reduce their susceptibility to
interference.
Important:
* Do not connect DATA_GND to the supply voltage-GND.
7 pol. Binder Steckverb. / Plug
7
Erde
Versorgung
DATA +
Earth
* DATA _ GND
Schirm / Shield
Power
18 ... 30 VDC
18 ... 28 VAC
DATA -
~
~
NC
NC
1 2 3 4 5 6
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