Reinhardt MWS 55M User manual

REINHARDT System- und
Messelectronic GmbH
Bergstr. 33, D-86911 Dießen-Obermühlhausen
Tel. 0049 - 8196 - 934100 or 7001
E-Mail: [email protected]
www.reinhardt-wetterstationen.de
Manual
MWS 4M
Microprocessor Weather Station
with datalogger

REINHARDT System- und Messelectronic GmbH
Bergstr. 33, D-86911 Dießen-Obermühlhausen, Tel. 0049 - 8196 - 934100 or 7001
MWS4M_e Page 2
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Manual MWS 4M
Table of contents
1 Caution .......................................................................................................................................................5
1.1 Intended Use..................................................................................................................................5
1.2 Safety Regulations .........................................................................................................................5
1.3 Mounting.........................................................................................................................................5
2 Setting Up the Weather Station................................................................................................................6
2.1 Installation of Hardware..................................................................................................................6
2.1.1 Overvoltage protection ...........................................................................................................7
2.2 Software Installation.......................................................................................................................8
2.3 Starting the Software......................................................................................................................9
3 Technical details........................................................................................................................................10
3.1 In case of power failure ..................................................................................................................10
3.2 Maintenance...................................................................................................................................10
3.3 The sensors....................................................................................................................................11
3.3.1 The Temperature Sensor .......................................................................................................11
3.3.2 The Humidity Sensor..............................................................................................................11
3.3.3 The Pressure Sensor .............................................................................................................11
3.3.4 The Wind Speed Sensor ........................................................................................................12
3.3.5 The Wind Direction Sensor ....................................................................................................12
3.3.6 Additional Sensor ...................................................................................................................13
3.3.7 Connecting an Additional Sensor...........................................................................................13
3.4 Sensor Accuracy ............................................................................................................................14
3.4.1 Measuring Ranges .................................................................................................................14
3.5 Adjustment of Additional Sensors ..................................................................................................15
3.6 Power Supply .................................................................................................................................16
3.7 Data Format ...................................................................................................................................16
3.8 System requirements .....................................................................................................................17
3.8.1 System requirements (16bit versions)....................................................................................17
3.8.2 System requirements (32bit-Versions)...................................................................................17
3.8.3 System Requirements for DOS-Versions...............................................................................17
3.8.3.1 SMARTDRIVE ..........................................................................................................17
4 Connections and Pin assignments..........................................................................................................18
4.1 Cables ............................................................................................................................................18
4.1.1 Data Cable - Allocation of the Connection Cable for MWS 4M / MWS 5MV..........................18
4.1.1.1 Connection Diagram Standard data cable ...............................................................18
4.1.2 Allocation of the Connection Cable for GPS-Receiver (Garmin GPS16-HVS) : ....................19
4.1.3 Allocation of the Connection Cable for MWS 4M / MWS 5MV with RS422-port ....................19
4.2 Pin assignments.............................................................................................................................20
4.2.1 Allocation of the MWS 4M / MWS 5MV-Connection Sockets ................................................20

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5 Excerpts from the Directions of DWD for Automatic Weather Stations...............................................21
6 Trouble Shooting.......................................................................................................................................22
6.1 Fault Protocol File (16 bit versions)................................................................................................22
6.2 Protocol-files (32 bit versions)........................................................................................................22
6.2.1 Log-file in case of error (ErrLog.txt) .......................................................................................22
6.2.2 Logfile when starting up (log.dat) ...........................................................................................22
6.3 RS422/RS485 port .........................................................................................................................23
7 Options.......................................................................................................................................................24
7.1 Available displays...........................................................................................................................24
7.1.1 Meteograph ............................................................................................................................24
7.1.2 DKA1......................................................................................................................................24
7.1.3 DMMK ....................................................................................................................................24
8 Technical Appendix...................................................................................................................................25
8.1 Control parameters for calibrating an additional sensor.................................................................25
8.2 Controlling the Microcontroller........................................................................................................26
8.2.1 Input parameters of MWS 4MV-Microprocessor ....................................................................26
8.2.2 Querying the Microprocessor .................................................................................................29
8.2.3 Order of the MWS 4M Sensors ..............................................................................................30
9 Exchange Connectors...............................................................................................................................31

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Manual MWS 4M
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REINHARDT System- und Messelectronic GmbH
E - Mail: [email protected] Web: www.reinhardt-wetterstationen.de
MWS 4M portable Microprocessor Weather Station

REINHARDT System- und Messelectronic GmbH
Bergstr. 33, D-86911 Dießen-Obermühlhausen, Tel. 0049 - 8196 - 934100 or 7001
MWS4M_e Page 5
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Manual MWS 4M
1 Caution
1.1 Intended Use
The MWS 4M weather station mainly has been developed for mobile operation and measuring
climatic parameters at changing locations. It is not designed for all-season longterm measurements.
Therefore current consumption and weight had been optimized with this unit. Also easy handling
is an important feature of this weather station.
Any use other than described above may cause damage of the product or lead to other dangers.
Do not mount the weather station in reach of children and pets.
Carefully read the complete operating manual. It contains important information about the in-
stallation and operation.
If the MWS 4M is not used for a longer period of time you should store it lying to prevent escaping
the lubricant from the ball bearings!
1.2 Safety Regulations
The instruments are manufactured according to modern technical standards and can be operated
without danger when used as directed.
Damage caused by non-observance of this operating manual can lead to forfeiture of warranty.
We shall not assume any liability for subsequent damage.
We shall not assume any liability for damage of items or persons caused by improper handling
or non-observance of the safety instructions! In such cases any guarantee claims shall become
null and void.
Dear customer, the following safety and hazard notices not only serve the protection of your health
but also the protection of the appliance. Please read the following points carefully.
The supply voltage is converted by isolated transformers into voltages of maximum 24VDC.
(The MWS 4M can be operated at voltages up to 28VDC).
Please do only use the supplied power supply units.
The weather station includes pointed and sharp-edged parts (i.e. windvane and edges of the
sensor's housing), which may cause injuries when handled without care.
Do not leave the packaging material lying around. These parts are dangerous toys in the hands
of children.
Handle the product with care. Blows or impact, or dropping it even from a small heigth will da-
mage it.
1.3 Mounting
The weather station is mounted on a 1" water-pipe 8outer diameter app. 33.8mm). The pipe must
be fixed very well to stand high wind speeds above 200 km/h when the weather station is mounted.
The weather station is to be fixed well onto the 1" pipe with the screw. The stability of the weather
station on the pipe must be established. Really check this after mounting the weather station!

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2 Setting Up the Weather Station
2.1 Installation of Hardware
MWS 4M Weather Station has been designed for measuring the most important weather para-
meters temperature, humidity, barometric pressure, wind direction and wind speed.
All parameters can be displayed graphically, digitally or as an "instrument".
There is also a statistics and a history function.
Mount the weather station on a 1 " pipe or a tripod with a pipe socket of 33.8mm outer diameter.
Orient the North-marker to North and clamp MWS 4M in place with the pre-mounted high quality
steel screws. Take care that the pipe / tripod is mounted as perpendicularly as possible, otherwise
the windvane will not work properly and will preferably rotate in one direction.
N.B.
The wind vanes of the MWS 4M weather station are very sensitive sensory equipment which can
easily be destroyed by mechanical influence.
Therefore do keep the packing of your weather station. Whenever you want to ship your weather
station later, this packing guarantees that the weather station is not damaged in transport !! Time
and again we have noticed that the units are damaged by wrong packing. This is very annoying
for the customer because he has to pay for all costs that may arise.
Please ask for a quotation of an original packing if it is no longer available to you (see last page).
The weather station must be set up at a place which is exposed to wind, because otherwise wind
direction and wind speed cannot be measured correctly. (Please see "Directions of Deutscher
Wetterdienst").
Connect the enclosed cable as follows:
Connect the 9pole connector to a free serial interface of your PC (COM1 or COM2 under the
Windows-version COM3 to COM16 as well).
Plug the power supply into a power outlet 230V / 50Hz.
Note on Security
Please note that you must in any case use the power supplies which we have provided or which are
technically identical with your MWS 4M weather station. Nominal value must be between
4 V and 28 V DC voltage; it must be possible to apply at least 100 mA. Please note also that all the
power supplies we provide are only made for use in dry rooms.
There are another two sockets for additional sensors and for an optional GPS-receiver. Power
supply of the additional sensors can be provided by the weather station or by their own power
supply. The output voltage of the additional sensors must not exceed +4.095 V, sensors with pulse
output must be TTL-compatible.
IMPORTANT !
When removing any additional cables from the weather station, please don't forget to protect the
socket with the cap and don't leave the socket open. Otherways the contacts of the socket will start
corroding and be damaged within a short period of time!
Also don't forget to protect the plug of the cable from moisture by covering it when removing the
weather station for calibration i.e. In this case also remove the wall adaptor of the power supply to
ensure that no voltage is applied to the contacts of the weather station's plug when it is not used!
Otherways the plug will start corroding due to moisture and the cable has to be replaced within
a short period of time.

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2.1.1 Overvoltage protection
The MWS 4M contains an integrated overvoltage protection (Suppressordiods) at it's supply- and
data wires.
The power linie is protected by a SMCJ26CA-diode. This diode breaks through at voltages above
31VDC and is able to carry up to 1500W for a few milli seconds.
CAUTION: If you connect voltages above 30VDC permanently to the power jack, this
diode will be destroyed within a few seconds!
The data lines are protected by SMBJ15CA-diodes able to carry transients up to 600W.
Also the housing made of aluminium is connected to system ground.
This protection is suitable for protecting the station from damage due to overvoltage at close
lightning strikes.
For protection of the connected peripherals (computer, camera, i.e.) the customer has to take
further precautions (line protection, opto couplers, i.e.).
But please note that this protection is ineffective in case of direct lightning strike
due to extremely high energy of lightning!
Currents of up to 200.000A can cause voltages up to 20.000V on the housing which
leads to flashovers onto the internal electronic components and it's destruction.
After installing the hardware you install the software.

REINHARDT System- und Messelectronic GmbH
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2.2 Software Installation
Insert the WeatherCD into your CD-drive.
You need an HTML-capable browser (Netscape, Internet-Explorer or else).
If Autostart is activated, the CD starts on its own, if not, you execute START.HTM in the CD root
directory. (If you want to install the software packages directly, you will find the paths for the
single installations in the install.html file.)
Now you follow the instructions of the WeatherCD.
NOTE
The software installations of the 16bit-versions neither change the registry nor any INI-files of your
WINDOWS-system.The32-bitversionscreatetheHKEY_CURRENT_USER\Software\Reinhardt
GmbH\Wetter\... key in the registry which is only created when running and is not deleted when
the software is de-installed.
Please note the instructions given on the CD for mounting the MWS 4M.
Then the weather station can be used 20 seconds after it is plugged in.

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2.3 Starting the Software
Start the software by double-clicking the program icon
After every start, the software checks the clock of MWS 4M and compares it to your computer
clock. If it differs more than set in the file WEATHER32STATION.INI the software sets the
MWS 4M clock automatically. Needless to say, the clock of the connected PC must give the correct
time, as MWS 4M is set to the PC-clock.
Since software version 3.11b the clock is automatically set by the software at starting up!
If your MWS 4M holds a GPS-receiver, it provides the correct time for MWS 4M.
NOTE
In this case the weather station's clock CAN'T be set by the software! With the GPS receiver you
start the software with the parameter -GPS (See sotware manual) for otherways there may be
problems showing and storing data due to wrong time synchronisation!
Data recording to hard disk is started in the selected time interval (5 minutes by default). The
software should run for at least one memory interval so that at least one data file is stored on the
hard disk. This is important for reading out the datalogger later. (If there is no data file on the
hard disk, the datalogger cannot be read out as the software does not find a start date.)
NOTE
MWS 4M only starts recording data to its datalogger after the time has been set. This guarantees
that the datalogger holds only data with the correct time. On the other hand this also means that
after a power failure data are only written on the datalogger after the clock has been reset! If you
need unbroken data, you should use your MWS 4M with a UPS (Uninterruptable Power Supply)
or the optional GPS-receiver which automatically provides MWS 4M with the correct time.
If the software is not started, there might be a faulty data file on the hard disk or not enough free
memory. This causes an abort.
The manual for the latest software you'll find here.

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3 Technical details
The standard datalogger of MWS 4M can store data of more than 20 days, with data comprima-
tion up to more than 30 days. These specifications refer to a memory interval of 5 minutes and
the sensors set by default. Smaller memory intervals and more sensors reduce the period of time
which is covered with the datalogger, larger intervals and less sensors extend it.
Please note that no data are written into the logger while reading data from it!
3.1 In case of power failure
The datalogger of MWS 4M is kept up in case of power failure (EEPROMS), but no new data are
stored.
In case of power failure, the clock of MWS 4M does not run on and must be reset after power
returns. This can be established automatically by an optional GPS-receiver (i.e. Garmin GPS-16-
HVS) or manually by restarting the software.
After power has returned, data are only stored in the datalogger after the clock was reset.
Missing data are indicated by measure values of -99999 in the datafile. The software then reco-
gnizes in the values of -99999 that data are missing and creates a gap in the graphical displays.
You may also set MWS 4M in such a way that it writes into the datalogger in the set memory in-
terval as soon as operating voltage is applied. Then the datalogger contains data with the wrong
time and cannot be read out by the delivered software. You will need your own application then !
3.2 Maintenance
Because of its elaborated sensors, MWS 4M needs no maintenance.
Our warranty ends if there is any intervention into hardware or software from your side.
MWS 4M-weather station has been developed for operation at changing locations under normal
climatic conditions (temperate zone). Use under extreme conditions such as e.g. on board of a ship,
mobile use on a measuring vehicle etc. has not been tested. It is therefore not recommended to
set up the weather station where it is exposed to salt or salt water ( e.g. right at the coast etc.).
It can be used on a measuring car under certain conditions although the measured values of the
wind sensors cannot be reproduced.

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3.3 The sensors
3.3.1 The Temperature Sensor
Temperature measurement is based on a precision
PT100. The resulting measured value is linearised
by the software. By standard, the temperature sensor
is mounted on the lower side of the weather station.
Range: from -40 °C to + 60 °C, measuring accuracy ±
0.5 °C, (display also possible in Kelvin or °Fahrenheit).
CAUTION:Comparedto temperaturemeasurementsin
big shielded cabins the measured values can be higher
when the sun is shining. If the temperature measure-
ments must correlate with the measurements in big
shielded cabins you should measure temperature in the
shaodow or measure with an additional temperature
sensor placed in the shadow or in a big shielded cabin!
Unit [hPa]
3.3.2 The Humidity Sensor
is a fast responding capacitive sensor (monolithic)
which is based on a dielectric with variable humidity (capacitance). In proportion to humidity
the electronics create a signal with changing frequency which is evaluated by the microprocessor.
The sensor is also mounted on the lower side of the weather station. A Gore-Tex cover protects it
from pollution or destruction by dust or insects.
The humidity sensor can be used in a temperature range between -40 °C to + 60 °C. It is linearized
to an accuracy of 2 %. Unit [hPa]%]
Range: from 12 to 100 %, measuring accuracy ±2 %, display also as dewpoint measurement in
°C or °F
NOTE
This sensor is very responsive to static charge and air pollution (dust, aggressive gases, but also salt).
Please note that under unfavourable conditions (i.e. microbic stress caused by moulds, bacteria)
this sensor ages faster than under normal conditions.
3.3.3 The Pressure Sensor
is a monolithic, laser-trimmed sensor for absolute pressure which is linearized to 5 hPa for the
whole temperature range, i.e., the barometer is temperature compensated. Another tempera-
ture linearisation reduces the deviation to less than 2 hPa over the whole temperature range.
The measuring signal is elaborated by an instrumental amplifier. The sensor can be used in the
temperature range of -40 °C to + 60 °C.
Measuring range: from 600 hPa to 1100 hPa with ± 0.8 hPa accuracy; display can be reduced to 0
m above sea level (input of the local altitude in [m], display also in mm mercury column or Inch
mercury column).
This sensor can be used at altitudes from 50m below zero up to altitudes of 3000m. Other altitudes
are possible on request.
This sensor can be transported by air cargo!

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The formula for reduction of pressure to 0m sea level used in this sensor is:
Barometer = absolute pressure * ((temperature [K] + 0.0065 * altitude) / temperature [K])^5 *
SQRT ( SQRT ((temperature [K] + 0.0065 * altitude) / temperature [K])
Unit [hPa]
If you want to use different formulas for reduction of pressure to sea level you may add a desired
formula into the Reinhardt weather software to perform.
3.3.4 The Wind Speed Sensor
is made up of an anemometer with magnetic scanning. Wind speed is measured without touch
using a maintenance free Hall sensor. A peak detector finds every wind peak and hands them on
the measuring software. An average value is determined within the respective memory intervals.
Range: in km/h from 0 to 200 km/h with ± 3km/h measuring accuracy, (display also in m/s, miles/h,
Knot or Beaufort), starting speed < 1.3 m/s.
As we have a very comfortable, 3-fold way of measuring wind speed with current wind speed
(WG), average wind speed (WD) and wind peaks (WS), you can conform your wind measurement
to your very needs.
Please note that dependent on the current winds, the 3 different methods of measuring wind
speed can result in very differing graphs: When measuring WG, only a current value is written
in the selected measuring interval, when measuring WD and WS, there is continuous evaluation
and the whole measuring period is monitored.
Unit [km/h]
3.3.5 The Wind Direction Sensor
There is a weather vane with a precision magnetical encoder and a rotation angle of 360 ° for
measuring wind direction. Wind direction is given in °, with 90° being East, 180° being South,
270° being West and 0 ° being North.
Range: in 360 °, measuring accuracy 5 °, starting speed < 0.8 m/s, hysteresis < 8°.
Please note, that in North direction (changing from 360° to 0°) wrong values may occur! This is
caused by switching from maximum to minimum value of winddirection. To get highly accurate
winddirection measurement, you should use the sensor with the identifier WV (main winddirec-
tion). This sensor is averaged over a storage interval so that these rare faulty values don't lead
to wrong measurement.
Output is performed as WR (current winddirection) and WV (main wind direction within a storage
interval). The value WR always has got a value between 0 and 359.9°. WV only has got values
between 0 and 359.9° if WG > 0. If WG = 0, WV has got a value of -99997, which means, that no
valid value for the main winddirection is available. This is clear for when windspeed = 0 no main
winddirection can be calculated.
Unit [°]

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3.3.6 Additional Sensor
Any kind of sensors can be integrated as additional sensors. The information signal must be ap-
plied as voltage in the range between 0 V and + 4.095 V or it has to be adapted to MWS 4M by a
special amplifier. Negative or higher voltages are blocked, but out of security reasons, should be
avoided in any case!
The sensor signals are linearised by software.
We deliver an additional temperature sensor for measuring soil or water temperature.
Additional sensors can be voltage supplied by the weather station as long as their current con-
sumption is below 25 mA. Unit [mV]
NOTE
If current consumption exceeds this value, we cannot grant that MWS 4M weather station works
properly !!!
If they need higher currents, the sensors must have an external power supply and its ground has
to be connected to the MWS 4M-ground (Pin 1 of the 7-pole connector socket). You can call for
adjustment instructions of the additional inputs at any time.
3.3.7 Connecting an Additional Sensor
Additional sensors are connected to MWS 4M at the 8-pole socket.
The socket is allocated as follows:
Pin1 : GND
Pin2 : Input for precipitation sensor (TTL-pulse)
Pin3 : Input for external solar sensor (analog 0..4.095V)
Pin4 : Input for external lightning sensor (TTL-Pulse)
Pin5 : Input for analog additional sensor 1 (0..4.095V)
Pin6 : Input for analog additional sensor 2 (0..4.095V)
Pin7 : Input for analog additional sensor 3 (0..4.095V)
Pin8 : Output operating voltage (5..20VDC) maximum 25mA

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3.4 Sensor Accuracy
Temperature: ± 0.5 °C
Humidity: ± 2.0 % (at 10°C..35°C)
Pressure: ± 0.8 hPa (at 0°C..50°C), ±2 hPa below 0°C
Wind direction: ± 5° (at 5°C..50°C), hysteresis < 5°
Start speed: < 0.8 m/s (at 5°C..50°C)
Wind speed: ± 3 km/h (at 5°C..50°C)
Start speed: < 1.3 m/s (at 5°C..50°C)
Additional sensor: ± 1 % of final value (at 0°C..50°C)
3.4.1 Measuring Ranges
Temperature: from -40 ° to + 60 °, resolution 0.02 °
Relative humidity: from 0 to 100 % resolution 0.02 %
Dewpoint: from -40 ° to + 60 °, resolution 0.1 °
Barometric pressure: from 950 hPa to 1050 hPa in 0.15 hPa resolution
Absolute pressure: from 600 hPa to 1100hPa in 0.15 hPa resolution
Wind direction: 0 to 360 °, resolution 0.1 °
Wind speed: in km/h from 0 to 200 km/h with 0.1 km/h resolution
Additional inputs: 0- 4.095 V
Supply 4-28 V, app. 55 mA, cable with PSU is included
Dimensions
Size: Outer diameter 80 mm, height 235 mm
Weight: app. 440g (without PSU and cable)
app. 800g (10m readymade cable with PSU)
The housing must be mounted centrally on a 1" pipe (unti May 2010 with 1"thread).
Standard cabling is 10 m - longer cabling on request.

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3.5 Adjustment of Additional Sensors
You will find the adjustment value pairs of your weather station in the MWS4_M.XXX, with XXX
a three-digit number.
Additional sensor 1 has got identification ZA, additional sensor 2 has got identification ZBand
additional sensor 3 has got identification ZC. The pairs of values of ZA start with !L5, those of ZB
with !L7 and those of ZC with !L9.
By default, we have adjusted the additional inputs in mV.
Now you connect the additional sensor to the 8-pole socket or to the collector.
Start a terminal program (e.g. Windows-terminal) and configure as follows: 9600 Baud, 8bit, no
parity, 1 Stopbit.
Under Windows-Terminal "Settings" - "Terminal-Settings" you turn on CR->CR/LF when trans-
mitting (This creates a #10 by pressing the Enter-key).
You now change into the adjustment mode of the weather station. All sensors will be output with
your frequency.
Here you can find out which voltage is created by your additional sensor at a respective analog
value. Expose a temperature sensor to 0°C aus, wait until the sensor has adapted to this tem-
perature and then you see the respective voltage of the sensor. You proceed with e.g. 30°C etc.
Note these pairs of values and replace the resprective lines in the adjustment file. It is most im-
portant that the first pair of values (e.g. !L5,1,F...) must contain the lowest voltage and the last
pair of values must contain the highest voltage.
At least 3 pairs of values must be determined per sensor (e.g. !L5,1F,.... to L5,3,W..).
All pairs of values which are not needed must contain voltage 65535!!
After you have determined the necessary adjustment values and entered them in the adjustment
file, you can transmit the changed file to MWS 4M as follows:
Start program MWS 4MCFG and then enter the name of your adjustment file. The new adjust-
ment files are transmitted now.
This does only work at COM1 or COM2!
Do not in any case change the pairs of values of the other sensors as this would lead to wrong
measurements of your weather station.
You will find the necessary parameters for controlling the weather station via Terminal-Program
in the technical appendix under Control Parameters.

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3.6 Power Supply
4-28 VDC, app. 55 mA at 12VDC, PSU is standard equipment.
When connecting any additional sensors, plaease noe, that the supply voltage for the additional
sensors is lead via a reverse polarity protection diode from the weather station's PSU.
Caution: Some additional sensors (LUX-sensor, Rain detector;..) need at least 9 VDC for proper
operation!
3.7 Data Format
The data format of the transmitted data looks like this:
Example of a datastring :
15:24:32, 15.09.03, TE22.09, DR952.25, WR78.91, FE35.58, WG0.00, WS4.11, WD494.29, WC22.09,
WV80.79,
Every 2 seconds, MWS 4M transmits a data record which starts with time and date. Separated
by comma, the single measured values with sensor identification come in the following order:
Temperature (TE), barometer (DR), wind direction (WR), prevailing wind direction (WV), humidity
(FE), wind speed (WG), wind peak (WS), average wind (WD), windchill (WC).
The datastring ends with <CR><LF>, since firmware 2.16 each datastring which is written in the
internal logger includes an additional ASCII #31 in front of <CR><LF> for data-synchronisation
with the software.
By default, the data are transmitted with 9600BAUD, 8bit, no parity and a stopbit. (For evaluation
with your own software, you can set several output modi - see appendix)
On harddisk, a data file is created every month with a format which is similar to that of the
transmitted data. The data files receive the extension .MWS
Example : The file of November 2005 is called 11_05.MWS when using 16-bit versions of the
software and 11_2005.MWS with 32-bit software.
In case of missing data (cause by power fail, etc.) the software writes data with measuring values
of -99999 to ensure integrity of the time axis. The software construes these values (-99999) as
missing data and creates measurement gaps in the graphical displays.
Please note: The 32-bit software-versions are able to read the data of the 16-bit software-version
but not vice versa!

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3.8 System requirements
3.8.1 System requirements (16bit versions)
The MWS 4M-software needs a computer with at least SX-386 Processor 4MB RAM (2MB of
which must be free (XMS).
You need a free COM-Port (COM1 or COM2, with Windows-versions COM3 or COM4 as well).
If you use COM3 or COM4, please note that it is only possible to switch interrupts for COM3 and
COM4 with special interface boards! If you do not have such a board, there will be problems if you
use devices at the same time on COM2 and COM4 or COM1 and COM3, because the interfaces
use the same interrupts by default.
COM3 and COM4 are only available with the WINDOWS-version!
We recommend a mouse (MS-compatible).
For further hard- and software bases, please do see the README - File(s)!!
3.8.2 System requirements (32bit-Versions)
At least a computer mit Pentium1 / 200 processor and 32MB RAM.
Runs with WIN98 SE and later.
3.8.3 System Requirements for DOS-Versions
- MS-DOS Vers. 4.0 and later
- HIMEM.SYS Driver in CONFIG.SYS
- FILES = 30 Entry in CONFIG.SYS (at least 30)
- if possible, no EMM386.EXE; if absolutely necessary with extension call RAM (DEVICE = EMM386.EXE
RAM in CONFIG.SYS)
- Minimum 1.6MB free XMS-memory
3.8.3.1 SMARTDRIVE
If you have installed SMARTDRIVE, you must limit its memory demand by changing the respec-
tive line in AUTOEXEC.BAT:
C:\DOS\SMARTDRV.EXE /X... change into
C:\DOS\SMARTDRV.EXE 1500 /X...
Limitation to 1500kB is recommended with 4MB main memory; if there are 8MB and more, a
limitation to 4 MB will be sufficient.
If the memory for SMARTDRV is not limited MWS 5-software may abort under certain circum-
stances with the error message RAM full and the computer may crash.
Using the F1-key or the "?" in the menu bar, you can call the Online-Help at any time.

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Manual MWS 4M
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4 Connections and Pin assignments
4.1 Cables
4.1.1 Data Cable - Allocation of the Connection Cable for MWS 4M / MWS 5MV
7 pole connector (MWS 4M-connection) 9-pole interface connector
Pin 1 (GND) < > Pin 5 (GND)
Pin 2 (GND - used for MWS 9-5)
Pin 3 (RXD-MWS 4M) < > Pin 3 (TXD-PC)
Pin 4 (TXD-MWS 4M) < > Pin 2 (RXD-PC)
Pin 5 (VCC 12VDC)
Pin 6 (R- with RS422 /485)
Pin 7 (T- with RS422 /485)
Connect Pin 4 and 6
Connect Pin 7 and 8
The data cable can be lengthened to up to 50 m. under optimum conditions and with suited cable
(not in industrial environment!!)
In case you lengthen the data cable, please take care that the connections in the connector at the
computer must be wired.
(Connect Pin 4 to Pin6 and Pin7 to Pin8).
4.1.1.1 Connection Diagram Standard data cable

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4.1.2 Allocation of the Connection Cable for GPS-Receiver (Garmin GPS16-HVS) :
5 pole connector
(MWS 4M-Heating and GPS-connection)
Pin 1 (GND GPS) < > Garmin GPS16-HVS GND
Pin 2 n.c.
Pin 3 n.c.
Pin 4 (Signal GPS) < > Garmin GPS16-HVS Out
Pin 5 (VCC GPS-10..24VDC) < > Garmin GPS16-HVS VCC
4.1.3 Allocation of the Connection Cable for MWS 4M / MWS 5MV with RS422-port
7 pole connector
(MWS 4M-power supply and data-connection)
Pin 1 (GND) < > PSU-GND (grey) - old:(green)
Pin 2 (GND - used for MWS 9-5)
Pin 3 (R+ of MWS 4M) < > wire (yellow)
Pin 4 (T+ of MWS 4M) < > wire (white)
Pin 5 (VCC 12VDC) < > PSU-VCC (pink) - old:(brown)
Pin 6 (R- of MWS 4M) < > wire (green) - old:(pink)
Pin 7 (T- of MWS 4M) < > wire (brown) - old:(grey)

MWS4M_e.p65 Page 20
Manual MWS 4M
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4.2 Pin assignments
4.2.1 Allocation of the MWS 4M / MWS 5MV-Connection Sockets
(Heating available only for MWS 5MV)