Lufft WS200-UMB, WS301-UMB, WS400-UMB, WS500-UMB, WS501-UMB Operating Manual

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Operating Manual English

Compact Weather Station WS200-UMB WS300-UMB WS301-UMB WS400-UMB WS500-UMB WS501-UMB WS600-UMB

www.lufft.com

Operating Manual Compact Weather Station

Contents

1 Please Read Before Use ............................................................................................................................................. 5

1.1 Symbols Used ..................................................................................................................................................... 5

1.2 Safety Instructions ............................................................................................................................................... 5

1.3 Designated Use ................................................................................................................................................... 5

1.4 Incorrect Use ....................................................................................................................................................... 5

1.5 Guarantee ............................................................................................................................................................ 5

1.6 Brand Names ....................................................................................................................................................... 5

2 Scope of Delivery ........................................................................................................................................................ 6

3 Order Numbers ............................................................................................................................................................ 6

3.1 Accessories ......................................................................................................................................................... 8

3.2 Spare Parts .......................................................................................................................................................... 8

3.3 Additional Documents and Software .................................................................................................................... 8

4 Equipment Description ............................................................................................................................................... 9

4.1 Air Temperature and Humidity ............................................................................................................................. 9

4.2 Air Pressure ......................................................................................................................................................... 9

4.3 Precipitation ......................................................................................................................................................... 9

4.4 Wet Bulb Temperature......................................................................................................................................... 9

4.5 Specific Enthalpy ................................................................................................................................................. 9

4.6 Air Density ......................................................................................................................................................... 10

4.7 Wind .................................................................................................................................................................. 10

4.8 Compass ........................................................................................................................................................... 10

4.9 Heating .............................................................................................................................................................. 10

4.10 Global Radiation ................................................................................................................................................ 10

4.11 Sensor Technology (example: WS600-UMB) .................................................................................................... 11

5 Generation of Measurements ................................................................................................................................... 12

5.1 Current Measurement (act) ................................................................................................................................ 12

5.2 Minimum and Maximum Values (min and max) ................................................................................................. 12

5.3 Average Value (avg) .......................................................................................................................................... 12

5.4 Vectorial Average Value (vct) ............................................................................................................................ 12

6 Measurement Output ................................................................................................................................................ 13

6.1 Air and Dewpoint Temperature ................................ ................................................................ .......................... 13

6.2 Wind Chill Temperature ..................................................................................................................................... 13

6.3 Humidity ............................................................................................................................................................. 13

6.4 Air Pressure ....................................................................................................................................................... 13

6.5 Wet Bulb Temperature....................................................................................................................................... 14

6.6 Specific Enthalpy ............................................................................................................................................... 14

6.7 Air Density ......................................................................................................................................................... 14

6.8 Wind Speed ....................................................................................................................................................... 15

6.9 Wind Direction ................................................................................................................................................... 15

6.10 Wind Measurement Quality ............................................................................................................................... 16

6.11 Compass ........................................................................................................................................................... 16

6.12 Precipitation Quantity - Absolute ....................................................................................................................... 17

6.13 Precipitation Quantity - Differential .................................................................................................................... 17

6.14 Precipitation Intensity......................................................................................................................................... 17

6.15 Precipitation Type .............................................................................................................................................. 18

6.16 Heating Temperature ......................................................................................................................................... 18

6.17 Global Radiation ................................................................................................................................................ 18

7 Installation ................................................................................................................................................................. 19

7.1 Fastening ........................................................................................................................................................... 19

7.2 North Alignment ................................................................................................................................................. 20

7.3 Selecting the Installation Location ..................................................................................................................... 21

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Operating Manual Compact Weather Station

8 Connections .............................................................................................................................................................. 23

8.1 Supply Voltage .................................................................................................................................................. 23

8.2 RS485 Interface ................................................................................................................................................ 23

8.3 Connection to ISOCON-UMB (8160.UISO) ...................................................................................................... 24

8.4 Use of Surge Protection (8379.USP) ................................................................................................................ 24

9 Commissioning ........................................................................................................................................................ 25

10 Configuration and Test ............................................................................................................................................ 26

10.1 Factory Settings ................................................................................................................................................ 26

10.2 Configuration with the UMB-Config-Tool ........................................................................................................... 26

10.3 Function Test with UMB-Config-Tool ................................................................................................................ 31

10.4 Operating Modes for Equipment Heating .......................................................................................................... 32

11 Firmware Update ...................................................................................................................................................... 34

12 Maintenance .............................................................................................................................................................. 34

13 Technical Data .......................................................................................................................................................... 35

13.1 Measuring Range / Accuracy ............................................................................................................................ 36

13.2 Drawings ........................................................................................................................................................... 38

14 EC Certificate of Conformity ................................................................................................................................... 44

15 Fault Description ...................................................................................................................................................... 45

16 Disposal .................................................................................................................................................................... 46

16.1 Within the EC .................................................................................................................................................... 46

16.2 Outside the EC ................................................................................................................................................. 46

17 Repair / Corrective Maintenance ............................................................................................................................. 46

17.1 Technical Support ............................................................................................................................................. 46

18 Appendix ................................................................................................................................................................... 47

18.1 Channel List Summary ...................................................................................................................................... 47

18.2 Channel List Summary per TLS2002 FG3 ........................................................................................................ 49

18.3 Communication in Binary Protocol .................................................................................................................... 50

18.4 Communication in ASCII Protocol ..................................................................................................................... 53

18.5 Communication in Terminal Mode .................................................................................................................... 55

18.6 Communication in SDI-12 Mode ....................................................................................................................... 58

18.7 Communication in Modbus Mode...................................................................................................................... 90

19 List of Figures ........................................................................................................................................................... 98

20 Index .......................................................................................................................................................................... 99

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Operating Manual Compact Weather Station

1 Please Read Before Use

1.1 Symbols Used

1.2 Safety Instructions

 Installation and commissioning must be carried out by suitably qualified

Important information concerning potential hazards to the user

Important information concerning the correct operation of the equipment

specialist personnel only.

 Never take measurements on or touch live electrical parts.  Pay attention to the technical data and storage and operating conditions.

1.3 Designated Use

 The equipment must only be operated within the range of the specified technical

data.

 The equipment must only be used under the conditions and for the purposes for

which it was designed.

 The safety and operation of the equipment can no longer be guaranteed if it is

modified or adapted.

1.4 Incorrect Use

If the equipment is installed incorrectly

 It may not function.  It may be permanently damaged.  Danger of injury may exist if the equipment is allowed to fall.

If the equipment is not connected correctly

 It may not function.  It may be permanently damaged.  The possibility of an electrical shock may exist.

1.5 Guarantee

The guarantee period is 12 months from the date of delivery. The guarantee is forfeited if the designated use is violated.

1.6 Brand Names

All brand names referred to are subject without limitation to the valid trademark and ownership rights of the respective owner.

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Operating Manual Compact Weather Station

2 Scope of Delivery

 Equipment

WS200-UMB WS300-UMB WS400-UMB WS500-UMB WS600-UMB WS301-UMB WS501-UMB

 Connection cable 10m

 Operating manual

3 Order Numbers

WS200-UMB 8371.U01

 Wind direction  Wind speed  Compass

WS300-UMB 8372.U01

 Air temperature  Relative humidity  Air pressure

WS301-UMB 8374.U01

 Air temperature  Relative humidity  Air pressure  Global Radiation

WS400-UMB 8369.U01 (Europe, USA, Canada)

 Precipitation 8369.U02 (UK)  Air temperature  Relative humidity  Air pressure

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Operating Manual Compact Weather Station

WS500-UMB 8373.U01

 Wind direction  Wind speed  Air temperature  Relative humidity  Air pressure  Compass

WS501-UMB 8375.U01

 Wind direction  Wind speed  Air temperature  Relative humidity  Air pressure  Compass  Global Radiation

WS600-UMB 8370.U01 (Europe, USA, Canada)

 Precipitation 8370.U02 (UK)  Wind direction  Wind speed  Air temperature  Relative humidity  Air pressure  Compass

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Operating Manual Compact Weather Station

Power supply unit 24V/100VA

8366.USV1 ISOCON-UMB

8160.UISO

Surge protection

8379.USP

Connection cable 10m

On enquiry

Operating Manual

 This document

UMB-Config-Tool

 Windows® software for testing, firmware updates and

configuration of UMB devices

UMB Protocol

 Communications protocol for UMB devices

Firmware

 The current device firmware

3.1 Accessories

3.2 Spare Parts

3.3 Additional Documents and Software

You can download the following documents and software via the Internet at www.lufft.com.

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Operating Manual Compact Weather Station

WS200-

UMB

WS300-

UMB

WS301-

UMB

WS400-

UMB

WS500-

UMB

WS501-

UMB

WS600-

UMB

Air temperature

● ● ● ● ● ●

Humidity

● ● ● ● ● ●

Air pressure

● ● ● ● ● ●

Precipitation

● ●

Wind direction

● ● ● ●

Wind speed

● ● ● ●

Compass

● ● ● ●

Global Radiation

● ●

4 Equipment Description

The WS family is a range of low cost, compact weather stations for the acquisition of a variety of measurement variables, as used for example for environmental data logging in road traffic management systems. Depending on the model, each device has a different combination of sensors for the various measurement variables.

Attention: Please note that, due to the approval of the radar sensor used, there are different country options on equipment which includes precipitation measurement.

The equipment is connected by way of an 8 pole screw connector and associated connection cable (length 10m).

The measured values are requested over the RS485 interface in accordance with UMB protocol.

During commissioning, configuration and measurement polling takes place using the UMBConfig-Tool (Windows® PC software).

4.1 Air Temperature and Humidity

Temperature is measured by way of a highly accurate NTC-resistor while humidity is measured using a capacitive humidity sensor. In order to keep the effects of external influences (e.g. solar radiation) as low as possible, these sensors are located in a ventilated housing with radiation protection. In contrast to conventional non-ventilated sensors, this allows significantly more accurate measurement during high radiation conditions.

Additional variables such as dewpoint, absolute humidity and mixing ratio are calculated from air temperature and relative humidity, taking account of air pressure.

4.2 Air Pressure

Absolute air pressure is measured by way of a built-in sensor (MEMS). The relative air pressure referenced to sea level is calculated using the barometric formula with the aid of the local altitude, which is user-configurable on the equipment.

4.3 Precipitation

Tried and tested radar technology from the R2S-UMB sensor is used to measure precipitation. The precipitation sensor works with a 24GHz Doppler radar, which measures the drop speed and calculates precipitation quantity and type by correlating drop size and speed.

4.4 Wet Bulb Temperature

The wet bulb temperature is the temperature resulting between a wetted or iced surface at a flowing air.

4.5 Specific Enthalpy

Parameter of state of the humid air, composed of the specific enthalpies (heat capacity) of the components of the mixture and related to the mass fraction of the dry air (at 0°C).

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Operating Manual Compact Weather Station

4.6 Air Density

The air density indicates how much mass in a given volume of air is contained and it is calculated from the measured values of air temperature, humidity and air pressure.

4.7 Wind

The wind meter uses 4 ultrasound sensors which take cyclical measurements in all directions. The resulting wind speed and direction are calculated from the measured run-time sound differential.

4.8 Compass

The integrated electronical compass (only device version 023 or higher) can be used to check the north – south adjustment of the sensor housing for wind direction measurement. It is also used to calculate the compass corrected wind direction.

4.9 Heating

The precipitation sensor and wind meter are heated for operation in winter. Note: the heating is designed for ambient temperatures down to -10°C, below -10°C the

function cannot be ensured under all conditions.

4.10 Global Radiation

The global radiation is measured by a pyranometer mounted in the top cover of the WS301 and WS501.

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Operating Manual Compact Weather Station

Precipitation sensor (heated)

Wind meter (heated)

Air temperature and relative humidity with fan on underside of device

Connector

Mounting bracket with springs and self-locking nuts

Air pressure sensor in device

Notch for attaching connection cable

Figure 1: Sensor Technology

4.11 Sensor Technology (example: WS600-UMB)

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Operating Manual Compact Weather Station

5 Generation of Measurements

5.1 Current Measurement (act)

In accordance with the specified sampling rate, the value of the last measurement is transmitted when the current measurement value is requested. Each measurement is stored in a circular buffer for the subsequent calculation of minimum, maximum and average values.

5.2 Minimum and Maximum Values (min and max)

When requesting the minimum and maximum values, the corresponding value is calculated via the circular buffer at the interval (1 – 10 minutes) specified in the configuration - and transmitted.

Note: In the case of wind direction, the minimum / maximum value indicates the direction at which the minimum / maximum wind speed was measured.

5.3 Average Value (avg)

When requesting the average value, this is calculated - via the circular buffer at the interval (1 – 10 minutes) specified in the configuration - and transmitted. In this way moving averages can also be calculated.

For some values the standard deviation is calculated for the same interval. The calculation of standard deviation will only be activated after the related UMB channel has been requested for the first time.

5.4 Vectorial Average Value (vct)

In the specific case of wind measurement, measurements are calculated vectorially. To this end, the average values of the vectors are generated internally. Hence the value (wind speed) and angle (wind direction) of the vector are calculated.

Note: On delivery, the interval for the calculation of minimum, maximum and average values is set at 10 minutes. If necessary, this can be adjusted to the particular requirements (1 – 10 minutes) with the aid of the UMB-Config-Tool (see page 26).

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Operating Manual Compact Weather Station

UMB Channel

Measuring Range

act

min

max

avg

Measurement Variable (float)

min

max

unit

100

120

140

160

Air temperature

-50.0

60.0

°C

105

125

145

165

Air temperature

-58.0

140.0

°F

110

130

150

170

Dewpoint temperature

-50.0

60.0

°C

115

135

155

175

Dewpoint temperature

-58.0

140.0

°F

UMB Channel

Measuring Range

act

min

max

avg

Measurement Variable (float)

min

max

unit

111 Wind chill temperature

-60.0

70.0

°C

116 Wind chill temperature

-76.0

158.0

°F

UMB Channel

Measuring Range

act

min

max

avg

Measurement Variable (float)

min

max

unit

200

220

240

260

Relative humidity

0.0

100.0

205

225

245

265

Absolute humidity

0.0

1000.0

g/m³

210

230

250

270

Mixing ratio

0.0

1000.0

g/kg

UMB Channel

Measuring Range

act

min

max

avg

Measurement Variable (float)

min

max

unit

300

320

340

360

Absolute air pressure

300

1200

hPa

305

325

345

365

Relative air pressure

300

1200

hPa

6 Measurement Output

Measurements are transmitted in accordance with UMB binary protocol (Factory Settings). You can find an example of a measurement request in different protocols and a complete

summary of the list of channels in the Appendix.

6.1 Air and Dewpoint Temperature

Sampling rate 1 minute Generation of average value 1 – 10 minutes Units °C; °F Request channels:

6.2 Wind Chill Temperature

Sampling rate 1 minute, computed on base of the average temperature and average wind speed

Units °C; °F Request channels:

6.3 Humidity

Sampling rate 1 minute Generation of average value 1 – 10 minutes Units %RH; g/m³; g/kg Request channels:

6.4 Air Pressure

Sampling rate 1 minute Generation of average value 1 – 10 minutes Unit hPa Request channels:

Note: For the correct calculation of relative air pressure, the altitude of the location must be entered in the device configuration (see Figure 11 on page 28). The factory setting for altitude is 0m; in this way both measurement variables deliver the same values.

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Operating Manual Compact Weather Station

UMB-Kanal

Measuring Range

act Measurement Variable (float)

min

max

unit

114 WetBulbTemperature

-50.0

60.0

°C

119 WetBulbTemperature

-58.0

140.0

°F

UMB-Kanal

Measuring Range

act Measurement Variable (float)

min

max

unit

215

SpecificEnthalpy

-100.0

1000.0

kJ/kg

UMB-Kanal

Measuring Range

act Measurement Variable (float)

min

max

unit

310

Air Density

0.0

3.0

kg/m³

6.5 Wet Bulb Temperature

Sampling rate 1 minute Units °C; °F Request channels:

6.6 Specific Enthalpy

Sampling rate 1 minute Unit kJ/kg Request channels:

6.7 Air Density

Sampling rate 1 minute Unit kg/m³ Request channels:

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Operating Manual Compact Weather Station

UMB Channel

Measuring Range

act

min

max

avg

vct

Measurement Variable (float)

min

max

unit

400

420

440

460

480

Wind Speed

60.0

m/s

405

425

445

465

485

Wind Speed

216.0

km/h

410

430

450

470

490

Wind Speed

134.2

mph

415

435

455

475

495

Wind Speed

116.6

kts

401

Wind Speed Fast

60.0

m/s

406

Wind Speed Fast

216.0

km/h

411

Wind Speed Fast

134.2

mph

416

Wind Speed Fast

116.6

kts

403

Wind Speed Standard

Deviation

60.0

m/s

413

Wind Speed Standard

Deviation

134.2

mph

UMB Channel

Measuring Range

act

min

max

avg

vct

Measurement Variable (float)

min

max

unit

500

520

540 580

Wind Direction

359.9

501

Wind Direction Fast

359.9 ° 502

Wind Direction Corrected

359.9

503

Wind Direction Standard

Deviation

359.0

6.8 Wind Speed

Sampling rate 10 seconds Generation of average value 1 – 10 minutes Generation of maximum value 1 – 10 minutes based on the internal second

measurements Units m/s; km/h; mph; kts Response threshold 0.3 m/s Request channels:

Note: The second measurements are averaged over 10 seconds for the output of the current measurement. The 'fast' channels deliver every second a current value, but with reduced accuracy.

6.9 Wind Direction

Sampling rate 10 seconds Generation of average value 1 – 10 minutes Generation of maximum value 1 – 10 minutes based on the internal second

measurements Unit ° Response threshold 0.3 m/s Request channels:

Note: The second measurements are averaged over 10 seconds for the output of the current measurement. The 'fast' channels deliver every second a current value, but with reduced accuracy.

The minimum / maximum wind direction indicates the direction at which the minimum / maximum wind speed was measured.

The corrected wind direction is calculated from the wind direction measured by the wind sensor and the heading measured by the compass.

Optionally the compass correction of the wind direction can be activated for all wind direction values. (Settings by UMB Config Tool)

Note: The correction function is designed for correction of the wind direction of a statically mounted sensor. If the alignment of the sensor changes during the measurement (i.e. if the sensor is mounted on a rotating platform or similar) the correction function will not in all cases work properly, specially not for the vector average.

It is of course possible to use the correction function for mobile measurement units, where the alignment is changed between measurement periods.

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Operating Manual Compact Weather Station

UMB Channel

Measuring Range

act

min

max

avg

vct

Measurement Variable (float)

min

max

unit

805

Wind Value Quality

100

UMB Channel

Measuring Range

act

min

max

avg

vct

Measurement Variable (float)

min

max

unit

510

Compass Heading

359

6.10 Wind Measurement Quality

Sampling rate 10 seconds Unit % Request channels:

Note: The value is updated every 10 seconds and transmits the minimum wind measurement quality for the last minute.

This value allows the user to assess how well the measurement system is functioning in the respective ambient conditions. In normal circumstances the value is 90 - 100%. Values up to 50% do not represent a general problem. If the value falls towards zero the measuring system is reaching its limits.

If during critical ambient conditions the system is no longer able to conduct reliable measurements, error value 55h (85d) is transmitted (device unable to execute valid measurement due to ambient conditions).

6.11 Compass

(only device version 023 or higher) Sampling rate: 5 min Unit ° Request channels:

Note: Reliable operation of the compass is only possible, if the sensor has been mounted according to the instructions in this manual, i.e. on top of the pole. Should the sensor be mounted on a traverse, the distribution of iron masses will be different from the situation during factory calibration. This may lead to additional deviation of the bearing. This also applies to lightning rods mounted at the pole top!

Dependent on the location of the installation the local declination of the earth magnetic field has to be considered. The declination value is entered using the UMB-Config-Tool (see page

28). The declination for the installation location can be found in the Internet, e.g. at

http://www-app3.gfz-potsdam.de/Declinationcalc/declinationcalc.html

http://www.ngdc.noaa.gov/geomagmodels/Declination.jsp

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Operating Manual Compact Weather Station

UMB Channel

Measurement Variable (float)

Unit

600

Precipitation Quantity - Absolute

l/m²

620

Precipitation Quantity - Absolute

640

Precipitation Quantity - Absolute

660

Precipitation Quantity - Absolute

mil

UMB Chanel

Measurement Variable (float)

Unit

605

Precipitation Quantity - Differential

l/m²

625

Precipitation Quantity - Differential

645

Precipitation Quantity - Differential

665

Precipitation Quantity - Differential

mil

UMB Channel

Measurement Variable (float)

Unit

800

Precipitation Intensity

l/m²/h

820

Precipitation Intensity

mm/h

840

Precipitation Intensity

in/h

860

Precipitation Intensity

mil/h

6.12 Precipitation Quantity - Absolute

Sampling rate Event-dependent on reaching the response threshold Response threshold 0.01mm Units l/m²; mm; in; mil Request channels:

Note: This measurement indicates the accumulated precipitation quantity since the last device reboot. The measurement is retained for the duration of a short power failure (up to 15 minutes). To reset this value, use the corresponding function in the UMB-Config-Tool (see page 30) or disconnect the device from the power supply for at least one hour.

6.13 Precipitation Quantity - Differential

Sampling rate Event-dependent on reaching the response threshold Response threshold 0.01mm Units l/m²; mm; in; mil Request channels:

Note: Each request from a differential channel sets the accumulated quantity back to zero. If the response from the device is lost due to a transmission error (e.g. poor GPRS connection), the quantity accumulated to date is also lost. The quantity accumulated to date is also reset each time the equipment is rebooted.

6.14 Precipitation Intensity

Sampling rate 1 minute Response threshold 0.6 mm/h Units l/m²/h; mm/h; in/h; mil/h Request channels:

Note: The precipitation intensity is always calculated on the basis of the precipitation intensity of the previous minute.

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Operating Manual Compact Weather Station

UMB Channel

Measurement Variable (unsigned char)

Coding

700

Precipitation Type

0 = No precipitation 60 = Liquid precipitation, e.g. rain 70 = Solid precipitation, e.g. snow

UMB Channel

Measuring Range

act

min

max

avg

Measurement Variable (float)

min

max

Unit

112 Heating Temperature Wind Sensor

-50.0

150.0

°C

113 Heating Temperature Precipitation Sensor

-50.0

150.0

°C

117 Heating Temperature Wind Sensor

-58.0

302.0

°F

118 Heating Temperature Precipitation Sensor

-58.0

302.0

°F

UMB Channel

Measuring Range

act

min

max

avg

Measurement Variable (float)

min

max

unit

900

920

940

960

Global Radiation

0.0

1400.0

W/m²

6.15 Precipitation Type

Sampling rate Event-dependent on reaching the response threshold Response threshold 0.01mm Follow-up time 2 minutes Request channels:

Note: A detected precipitation type remains valid for 2 minutes after the end of the precipitation event. In order to record precipitation types which only occur for a short period (e.g. short-term rain), the request time should be at least 1 minute.

Ice, hail and sleet are transmitted as rain (60).

6.16 Heating Temperature

Sampling Rate 1 Minute Units °C; °F Request Channels:

6.17 Global Radiation

Sampling Rate 1 minute Generation of average values 1 – 10 minutes Unit W/m² Request Channels:

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Operating Manual Compact Weather Station

Mast tube

Mounting bracket

Springs

Nuts with washers

7 Installation

The sensor bracket is designed to be installed on the top of a mast with a diameter of 60 – 76mm.

The following tools are required for the installation:

 Open-end or ring spanner (SW13)  Compass for aligning the wind meter to the North

7.1 Fastening

Figure 2: Fastening to the Mast

 Loosen nuts  Push the sensor onto the top of the mast from above  Tighten the nuts evenly until contact is made with the springs but the sensor can still be

moved easily

 Align the sensor to the North (for wind meters)  Tighten both nuts with 3 revolutions

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Operating Manual Compact Weather Station

Point of reference in the North

Figure 3: North Markings

Figure 4: Alignment to North

7.2 North Alignment

In order for the wind direction to display correctly, the sensor must be aligned to the North. The sensor has a number of directional arrows for this purpose.

Procedure:

 If the sensor is already installed, first loosen both nuts evenly until you can turn the sensor

easily

 Using the compass, identify the North and fix a point of reference on the horizon  Position the sensor in such a way that the South and North sensors are in alignment with

the fixed point of reference in the North

 Tighten both nuts with 3 revolutions

poor good Note: As the magnetic North Pole indicated by the compass differs from the Geographic

North Pole, account must be taken of the declination (variation) at the location when aligning the sensor.

Depending on the location, the variation can be more than 15° (in North America for example). In Central Europe the variation can be largely ignored at present (< 3°). You can find further helpful information on this subject on the Internet.

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Operating Manual Compact Weather Station

7.3 Selecting the Installation Location

In order to guarantee long service life and correct equipment operation, please pay attention to the following points when selecting the installation location.

7.3.1 General Instructions

 Stable subsurface for installing the mast  Free access to the equipment for maintenance works  Reliable power supply for permanent operation  Good network coverage when transmitting over a mobile communications network

Note: The computed measurements specifically apply to the equipment location only. No conclusions can be drawn with regard to the wider environment or a complete road section.

ATTENTION:

 Only approved and tested appliances (conductors, risers etc.) should be used to install the

device on the mast.

 All relevant regulations for working at this height must be observed.  The mast must be sized and anchored appropriately.  The mast must be earthed in accordance with regulations.  The corresponding safety regulations for working at road side and in the vicinity of the

road carriageway must be observed.

If the equipment is installed incorrectly

 It may not function.  It may be permanently damaged.  Danger of injury may exist if the equipment is allowed to fall.

7.3.2 Sensors with Wind Measurement

 Installation at the top of the mast  Installation height at least 2m above the ground  Free field around the sensor

Note: Buildings, bridges, embankments and trees may corrupt the wind measurement. Equally, passing traffic may cause gusts which may influence the wind measurement.

7.3.3 Sensors with Precipitation Measurement

 Installation on the top of the mast  Installation height at least 4.5m above the ground  Distance to road carriageway at least 10m  Distance from moving objects (e.g. trees, bushes and even bridges) at least 10m at the

height of the sensor

Note: Falling or moving objects, e.g. falling leaves or leaves blowing in the wind, may cause false measurements and/or precipitation types.

Note: Strong wind can influence the accuracy of the precipitation measurement. Note: When selecting the installation location please take care to position the device at a

suitable distance from other systems incorporating a 24GHz radar sensor, such as traffic counting devices on overhead gantry signs. Otherwise cross effects and system malfunctions may occur. In the final analysis, the distance to other measuring systems also depends on their range of coverage and signal strength.

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 21

Operating Manual Compact Weather Station

Road carriageway

min. 10 m

min. 4.5 m

WS600-UMB

Mast min. 10 m

Tree, bush

etc.

Figure 5: Installation Sketch

7.3.4 Sensors with Global Radiation Measurement

 Installation on top of the pole  Shadow free location, if possible 360° free view to the horizon at the height of the

pyranometer

 Distance to shadow casting objects (trees, buildings) at least 10 times of the object height

relative to the sensor.

7.3.5 Installation Sketch

Example WS600-UMB:

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Operating Manual Compact Weather Station

8 Connections

There is an 8 pole screw connector on the underside of the equipment. This serves to connect the supply voltage and interfaces by way of the supplied connection cable.

Equipment connector:

Figure 6: Connections

Pin assignment: 1 White Supply voltage ground

2 Brown Positive supply voltage 3 Green RS485_A / SDI-12 GND 4 Yellow RS485_B / SDI-12 Data Line 5 Gray Jumper for activation of SDI-12 mode 6 Pink Jumper for activation of SDI-12 mode 7 Blue Heating voltage ground 8 Red Positive heating voltage

The cable marking is in accordance with DIN 47100.

View on sensor connection

Note: The yellow protective cap must be removed before plugging in the equipment. If the equipment is not connected correctly

- It may not function

- It may be permanently damaged

- The possibility of an electrical shock may exist

When connecting the heating voltage the correct polarity must be strictly observed. Wrong polarity of the heating voltage, as well as wrong polarity of the supply voltage will cause damage of the instrument.

8.1 Supply Voltage

The supply voltage for the compact weather station is 12 - 24V DC. The power supply unit used must be approved for operation with equipment of protection class III (SELV).

8.1.1 Limitations in 12V mode

If the heating is operated on 12V DC, account must be taken of the functional restrictions in winter operation.

Note: A heating voltage of 24V DC is recommended to guarantee full heating duty.

8.2 RS485 Interface

The equipment has an electrically isolated, half-duplex, 2 wire RS485 interface for configuration, measurement polling and the firmware update.

See page 35 for technical details.

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Operating Manual Compact Weather Station

Brown: Positive voltage supply +24V

Green: RS485

Interface A

White: Supply voltage ground GND2

Yellow: RS485

Interface B

Figure 7: Connection to ISOCON-UMB

8.3 Connection to ISOCON-UMB (8160.UISO)

Warning: The heating voltage (red = positive heating voltage; blue = heating voltage

ground) is not connected to the ISOCON-UMB but wired direct to the power supply unit. During installation please also refer to the operating manual for the ISOCON-UMB.

8.4 Use of Surge Protection (8379.USP)

When using surge protection (Order No.: 8379.USP), please pay attention to the connection example in the surge protection operating instructions.

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9 Commissioning

After the equipment has been installed and connected correctly, the sensor begins autonomously to take measurements. A Windows® PC with serial interface, UMB-ConfigTool software and interface cable (SUB-D 9 pole; jack - socket; 1:1) are required for configuration and test purposes.

Attention must be paid to the following points: Check for correct equipment operation on site by carrying out a measurement request with

the aid of the UMB-Config-Tool (see page 31).

 Configure the local altitude in order to ensure the correct calculation of relative air

pressure (see page 28).

 The device must be aligned to the North in order to ensure correct wind measurement

(see page 20).

 In order to get correct compass headings the local declination must be configured (see

page 16and 28).

 If several compact weather stations are operated on a UMB network, a unique device ID

must be assigned to each device (see page 27).

There is no protective cover to remove on the sensor itself.

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Operating Manual Compact Weather Station

10 Configuration and Test

Lufft provides Windows® PC software (UMB-Config-Tool) for configuration purposes. The sensor can also be tested and the firmware updated with the aid of this software.

10.1 Factory Settings

The compact weather station is delivered with the following settings:

Class ID: 7 (cannot be modified) Device ID: 1 (gives address 7001h = 28673d) Baud rate: 19200 RS485 protocol: Binary Calculation interval: 10 measurements Local altitude: 0 m

Note: The device ID must be changed if several compact weather stations are operated on a UMB network, as each device requires a unique ID. It makes sense to start from ID 1 and continue in ascending order.

10.2 Configuration with the UMB-Config-Tool

The operation of the UMB-Config-Tool is described in detail in the operating instructions for the Windows® PC software. For this reason only the menus and functions specific to the compact weather station are described here.

10.2.1 Sensor Selection

The compact weather station is shown here with sensor selection WSx-UMB (Class ID 7).

Figure 8: Sensor Selection

Note: You do require the current version of the UMB-Config-Tool to configure the compact weather station.

Note: All other devices which are used in the polling process, e.g. modems, LCOM etc., must be disconnected from the UMB network during configuration.

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Figure 9: General Settings

Figure 10 Temperature, Humidity and Fan Settings

10.2.2 Configuration

After a configuration has been loaded, all relevant settings and values can be adjusted. Depending on the device type, only the settings pertinent to the respective available sensors are relevant.

10.2.3 General Settings

ID: Device ID (factory setting 1; assign device IDs to additional devices in

ascending order).

Description: In order to differentiate the devices you can enter a description here, e.g.

the location.

Linespeed: Transmission speed of the RS485 interface (factory setting 19200; DO NOT

CHANGE for operation with ISOCON-UMB).

Protocol: Communications protocol of the sensor (Binär, ASCII, SDI-12, Modbus-

RTU, Modbus-ASCII, Terminal).

Timeout: In the event of a temporary changeover of the communications protocol, the

system switches back to the configured protocol after this time (in minutes)

Important note: If the baud rate is changed, after saving the configuration on the sensor, the sensor communicates at the new baud rate. When operating the sensor in a UMB network with ISOCON-UMB, this baud rate must not be changed; otherwise the sensor is

no longer addressable and can no longer be configured.

10.2.4 Temperature, Humidity and Fan Settings

Offset: Absolute offset on the measurement in the unit of the accompanying

channel (for on site calibration).

Interval: Time in minutes for the minimum, maximum and average value calculation

interval.

Fan: to reduce electrical power consumption, the fan can be switched off.

Note:if the fan is switched off, all heaters will also be switched off! With the fan switched off deviations in temperature and humidity measurement can occur by solar radiation!

Note: In order to calculate dewpoint, absolute humidity and mixing ratio, the temperature

and humidity measurement always requires the same interval. For this reason different intervals cannot be set.

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Figure 11 Pressure and Wind Settings

10.2.5 Pressure, Wind and Compass Settings

Offset: Absolute offset on the measurement in the unit of the accompanying channel. Interval: Time in minutes for the minimum, maximum and average value

calculation interval.

Altitude: Enter the local altitude in meters here for the correct calculation of

relative air pressure (referenced to sea level).

Windspeed min: Approach velocity onto the wind meter with effect from which a

measurement is transmitted, in the unit of the accompanying channel.

Heater mode: The device can be configured for heating in different operating modes.

Configure as ‘automatic’ in normal operating mode. You can find a

precise description of the operating modes on page 32.

Local declination: Dependent on the location of the installation; the local declination of the

earth magnetic field has to be considered.

Enable Compass for wind-direction correction:

With activated compass correction all wind direction values will be corrected according to the alignment of the sensor, as evaluated by the compass.

Note: The offset is not used for the wind meter at present because on-site calibration is not possible in this case.

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10.2.6 Rain Gauge Settings

Figure 12 Rain Gauge Settings

Heater mode: The device can be configured for heating in different operating modes.

Configure as ‘automatic’ in normal operating mode. You can find a precise

description of the operating modes on page 32.

Followup time precipitation type: for this time (in seconds) the detected precipitation type is

Note: All other parameters, especially those in the ‘Rainfall calibration data’ tab‚ may only be

shown; to cover all events, this time must be adjusted to the poll rate.

changed after consultation with the manufacturer, as they have a major influence on the functioning and accuracy of the sensor.

10.2.7 Energy Management

Figure 13 Energy Management Settings

With the button "Maximum energiesaving", the power consumption of the device is reduced by the following action:

 The ventilation of the temperature / humidity unit is switched off  All heaters are switched off  The rain sensor is not working continuously; per minute, the sensor is activated for one

second, if then precipitation is detected, it remains until the end of the event turned on,

otherwise it is deactivated after the one second again. Note: This setting has the following restrictions:

 With the fan switched off deviations in temperature and humidity measurement can occur

by solar radiation.

 Winter operation is not possible in this operating mode because any icing might prevent

the correct operation of the rain sensor or wind meter.

 The rain detection may be delayed up to 2 minutes. Short events are possibly not

detected. Thus, deviations in the accuracy of the precipitation quantity are possible.

 For maximum energy saving, a device with version 025 or higher is required (last position

of the serial number).

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Figure 14: Reset Precipitation Quantity

10.2.8 Reset Precipitation Quantity

To reset the accumulated absolute precipitation quantity the UMB-Config-Tool offers the following function:

Options  WSxUMB reset rain

Confirm the reset with ‘Yes’

Note: The precipitation quantities are reset in ALL compact weather stations on the respective UMB network. The devices reboots after this function has been used.

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Figure 15 Measurement Polling Channels

Figure 16 Example of Measurement Polling

10.3 Function Test with UMB-Config-Tool

The functions of the compact weather station can be tested with the UMB-Config-Tool by polling various channels.

Note: All other devices which are used in the polling process, e.g. modems, LCOM etc., must be disconnected from the UMB network during configuration.

10.3.1 Channels for Measurement Polling

You can select the channel for measurement polling by the UMB-Config-Tool by clicking on the respective channel.

10.3.2 Example of Measurement Polling

Note: The UMB-Config-Tool is provided for test and configuration purposes only. It is not

suitable for the permanent acquisition of measurement data. We recommend the use of professional software solutions for this purpose, e.g. SmartView3.

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Operating Manual Compact Weather Station

Heater Mode

WS200-UMB

WS400-UMB

WS500-UMB

WS501-UMB

WS600-UMB

Automatic

● ● ● ● ●

Off

● ● ● ● ●

Mode 1

● ● ● ●

Eco-Mode 1

● ●

Figure 17: Operating Modes for Equipment Heating

10.4 Operating Modes for Equipment Heating

Heating is configured to ‘Automatic’ when the product is delivered. This is the recommended operating mode for heating the sensor.

You can set the following operating modes:

Note: Model WS300-UMB and WS301-UMB are not heated because neither rain sensor nor wind meter is included.

The rain sensor and wind meter settings must be adjusted in the respective configuration mask. The examples show the wind meter setting.

10.4.1 Automatic

In this operating mode, the sensor is maintained constantly at the control temperature, generally in order to prevent the effects of snow and ice.

Setpoint Temp.: The heating controls at this temperature (in °C) The settings for the other values are not relevant.

10.4.2 Off

In the ‘Off’ operating mode heating is completely disabled. Winter operation is not possible in

this operating mode because any icing might prevent the correct operation of the rain sensor or wind meter.

The value settings are not relevant.

10.4.3 Mode 1

In ‘Mode 1’ operating mode heating is only enabled when the outside temperature falls below

the HeatingMode1 temperature (in °C). In this mode power consumption can be reduced in frost-free situations with no great restriction on winter operation.

Setpoint Temp.: The heating controls at this temperature (in °C) Heating mode1 Temp.: Threshold temperature (in °C) with effect from

which air temperature heating is enabled The ‘Eco Mode1 follow-up time’ setting is not relevant.

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10.4.4 Eco-Mode 1

Eco Mode1 is an advanced energy saving mode. Heating is only switched on when the following conditions are met:

 The outside temperature is below the threshold temperature and precipitation was

detected. Heating then runs at the control temperature for 30 minutes (after the last

precipitation event).

 When the outside temperature lies constantly below the threshold temperature and there

was no heating for more than 20h, heating is switched on for 30 minutes as a

precautionary measure in order to thaw any icing. However, the precautionary 20h-heating only runs if the outside temperature was measured

at below the threshold temperature for the entire period and conditions were constantly bright for at least 3 hours.

Setpoint Temp.: The heating controls at this temperature (in °C) Heating mode1 Temp.: Threshold temperature (in °C) with effect from

which heating is enabled Eco mode1 follow-up time: Follow-up time (in minutes) Examples: Outside temperature constantly below 5°C; no precipitation for more than 24h

Outside temperature constantly below 5°C; with precipitation

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Operating Manual Compact Weather Station

11 Firmware Update

To keep the sensor in accordance with the latest state-of-the-art, it is possible to carry out a firmware update on site with no need to remove the sensor and return it to the manufacturer.

The firmware update is carried out with the aid of the UMB-Config-Tool. The description of the firmware update can be found in the instructions for the UMB-Config-

Tool. Please download the latest firmware and UMB-Config-Tool from our website

www.lufft.com and install it on a Windows® PC. You can find the instructions here:

Note: When a firmware update takes place, under certain circumstances the absolute precipitation quantities are reset (channel 600 – 660).

There is only one firmware for the entire product family which supports all models (WSx_Release_VXX.mot).

12 Maintenance

In principle the equipment is maintenance-free.

However, it is recommended to carry out a functional test on an annual basis. When doing so, pay attention to the following points:

 Visual inspection of the equipment for soiling  Check the sensors by carrying out a measurement request  Check the operation of the fan (not on WS200-UMB)

In addition, an annual calibration check by the manufacturer is recommended for the humidity sensor (not on WS200-UMB). It is not possible to remove or replace the humidity sensor. The complete compact weather station must be sent to the manufacturer for testing.

Cleaning of the glass dome at regular intervals is suggested for devices with global radiation measurement. The length of the interval should be adapted to the local degree of pollution.

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24VDC standard1

12VDC energy save mode2

WS200-UMB

ca. 50 mA / 1.2VA

ca. 16.5mA / 0.2VA

WS300-UMB, WS301-UMB

ca. 145 mA / 3.5VA

ca. 16.5mA / 0.2VA WS400-UMB

ca. 170 mA / 4.1VA

ca. 17.5mA / 0.2VA

WS500-UMB, WS501-UMB

ca. 150 mA / 3.6VA

ca. 16.5mA / 0.2VA

WS600-UMB

ca. 175mA / 4,2VA

ca. 17.5mA / 0.2VA

13 Technical Data

Power supply: 24VDC +/- 10% 12VDC with restrictions (see page 23)

Current consumption and power input - sensor:

Current consumption and power input - heating:

WS200-UMB 833 mA / 20VA at 24VDC WS400-UMB 833 mA / 20VA at 24VDC WS500-UMB, WS501-UMB 833 mA / 20VA at 24VDC WS600-UMB 1.7 A / 40VA at 24VDC

Dimensions including mounting bracket:

WS200-UMB Ø 150mm, height 194mm WS300-UMB Ø 150mm, height 223mm WS301-UMB Ø 150mm, height 268mm WS400-UMB Ø 150mm, height 279mm WS500-UMB Ø 150mm, height 287mm WS501-UMB Ø 150mm, height 332mm WS600-UMB Ø 150mm, height 343mm

Weight including mounting bracket, excluding connection cable:

WS200-UMB ca. 0.8 kg WS300-UMB ca. 1.0 kg WS400-UMB, WS301-UMB ca. 1.3 kg WS500-UMB ca. 1.2 kg WS600-UMB, WS501-UMB ca. 1.5 kg

Fastening: Stainless steel mast bracket for Ø 60 - 76mm

Protection class: III (SELV) Protection type: IP64

Storage Conditions

Permissible storage temperature: -50°C ... +70°C Permissible relative humidity: 0 ... 100% RH

Operating Conditions

Permissible operating temperature: -50°C ... +60°C Permissible relative humidity: 0 ... 100% RH Permissible altitude above sea level: N/A

RS485 interface, 2 wire, half-duplex

Data bits: 8 (SDI-12 mode: 7) Stop bit: 1 Parity: No (SDI-12 mode: even, Modbus mode none or even) Tri-state: 2 bits after stop bit edge Adjustable baud rates: 1200, 2400, 4800, 9600, 14400, 192003, 28800, 57600

(In SDI-12 mode, the interface is changed to meet the requirements of the standard.)

Housing: Plastic (PC)

Factory setting; recommended setting

This setting must be set in the device configuration. For maximum energy saving, a device with version 025 or

higher is required (last position of the serial number).

Factory setting; baud rate for operation with ISOCON-UMB and firmware update.

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Operating Manual Compact Weather Station

13.1 Measuring Range / Accuracy

13.1.1 Air temperature

Measurement process: NTC Measuring range: -50°C ... +60°C Resolution: 0.1°C(-20°C...+50°C), otherwise 0.2°C Sensor accuracy: +/- 0.2°C (-20°C ... +50°C), otherwise +/-0.5°C (>-30°C) Sampling rate: 1 minute Units: °C; °F

13.1.2 Humidity

Measurement process: Capacitive Measuring range: 0 ... 100% RH Resolution: 0.1% RH Accuracy: +/- 2% RH Sampling rate: 1 minute Units: % RH; g/m³; g/kg

13.1.3 Dewpoint Temperature

Measurement process: Passive, calculated from temperature and humidity Measuring range: -50°C ... +60°C Resolution: 0.1°C Accuracy: Computed +/- 0.7°C Units: °C; °F

13.1.4 Air Pressure

Measurement process: MEMS sensor - capacitive Measuring range: 300 ... 1200hPa Resolution: 0.1hPa Accuracy: +/- 1.5hPa Sampling rate: 1 minute Unit: hPa

13.1.5 Wind Speed

Measurement process: Ultrasound Measuring range: 0 … 60m/s Resolution: 0.1m/s Accuracy: ±0.3 m/s or ±3% (0...35 m/s) ±5% (>35m/s) RMSE Response threshold: 0.3 m/s Sampling rate: 10 seconds / 1 second with restrictions Units: m/s; km/h; mph; kts

13.1.6 Wind Direction

Measurement process: Ultrasound Measuring range: 0 – 359.9° Resolution: 0.1° Accuracy: < 3° RMSE from 1.0 m/s Response threshold: 0.3 m/s Sampling rate: 10 seconds / 1 second with restrictions

13.1.7 Precipitation

Measurement process: Radar sensor Measuring range (drop size): 0.3 mm ... 5.0 mm Liquid precipitation resolution: 0.01 mm Precipitation types: Rain, snow Repeatability: Typically > 90% Response threshold: 0.01 mm Sampling rate: Event-dependent on reaching response threshold

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13.1.8 Compass

Measurement process: Integrated electronic compass Measurement range: 0 ... 359° Resolution: 1.0° Sampling rate: 5 min

13.1.9 Global Radiation

Measurement Process Thermopile pyranometer Measurement Range 0.0 ... 1400.0 W/m² Resolution < 1W/m² Sampling Rate 1 min

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Operating Manual Compact Weather Station

Figure 18: WS200-UMB

13.2 Drawings

Figure 19: WS300-UMB

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Figure 20: WS301-UMB

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 39

Operating Manual Compact Weather Station

Figure 21: WS400-UMB

40 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Manual Compact Weather Station

Figure 22: WS500-UMB

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Operating Manual Compact Weather Station

Figure 23: WS501-UMB

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Operating Manual Compact Weather Station

Figure 24: WS600-UMB

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Operating Manual Compact Weather Station

14 EC Certificate of Conformity

Product: Compact Weather Station Type: WS200-UMB (Order No.: 8371.U01)

WS300-UMB (Order No.: 8372.U01) WS301-UMB (Order No.: 8374.U01) WS400-UMB (Order No.: 8369.U01 / 8369.U02) WS500-UMB (Order No.: 8373.U01) WS501-UMB (Order No.: 8375.U01) WS600-UMB (Order No.: 8370.U01 / 8370.U02)

We herewith certify that the above mentioned equipment complies in design and construction with the Directives of the European Union and specifically the EMC Directive in accordance with 89/336/EC and the Low Voltage Directive in accordance with 73/23/EC.

The above mentioned equipment conforms to the following specific EMC Standards:

EN 61000-6-2:2005 Part 6-2: Generic Standards - Immunity for Industrial Environments EN 61000-4-2 ESD

EN 61000-4-3 Radiated electromagnetic field EN 61000-4-4 Burst EN 61000-4-5 Surge EN 61000-4-6 Conducted disturbances EN 61000-4-8 Magnetic field 50Hz

EN 61000-6-3:2001 Part 6-3: Generic Standards - Emission Standard for Residential, Commercial and Light Industrial Environments

EN 55022:1998 +A1:2000 +A2:2003 Line-conducted disturbances prEN 50147-3:2000 Radiated emission

IEC / CISPR 22 Class B

Fellbach, 28.11.2008 Axel Schmitz-Hübsch

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Error description

Cause - Remedy

Device does not allow polling / does not respond

- Check power supply

- Check interface connection

- Incorrect device ID  check ID; devices are

delivered with ID 1.

The device measures precipitation but it is not raining

Check that the sensor was installed correctly in accordance with the instructions.

The measured temperature appears too high / measured humidity appears too low

Check the operation of the fan on the underside of the device.

Wind direction values are incorrect

Device is not correctly aligned  check that the device is aligned to the North.

Device transmits error value 24h (36d)

A channel is being polled that is not available on this device type; e.g. Channel 200 = humidity is being polled on a WS200-UMB.

Device transmits error value 28h (40d)

The device is in the initialization phase following startup the device delivers measurements after approx. 10 seconds.

Device transmits error value 50h (80d)

The device is being operated above the limit of the specified measuring range.

Device transmits error value 51h (81d)

The device is being operated below the limit of the specified measuring range.

Device transmits error value 55h (85d) during wind measurement

The device is unable to execute a valid measurement due to the ambient conditions.

This may be due to the following reasons:

- The device is being operated well above the limit of the specified measuring range

- Very strong horizontal rain or snow

- The wind meter sensors are very dirty  clean

sensor

- The wind meter sensors are iced over  check heating mode in the configuration and check heating function / connection

- There are foreign objects within the measuring section of the wind meter

- One of the wind meter’s sensors is faulty  return device to manufacturer for repair

The quality of the wind measurement is not always100%

In normal operation the device should always transmit 90 – 100%. Values up to 50% do not represent a general problem.

When the error value 55h (85d) is transmitted this value is 0%.

If the device permanently transmits values below 50% this may mean that there is a fault.

Device transmits an error value not listed here

This may be due to a number of reasons  contact the manufacturer’s technical support department.

15 Fault Description

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16 Disposal

16.1 Within the EC

The device must be disposed of in accordance with European Directives 2002/96/EC and 2003/108/EC (waste electrical and electronic equipment).

16.2 Outside the EC

Please comply with the applicable regulations for the proper disposal of waste electrical and electronic equipment in your respective country.

17 Repair / Corrective Maintenance

Please arrange for any faulty equipment to be checked and, if necessary, repaired by the manufacturer exclusively. Do not open the equipment and do not under any circumstances attempt to carry out your own repairs.

In matters of guarantee or repair please contact:

G. Lufft Mess- und Regeltechnik GmbH

Gutenbergstraße 20 70736 Fellbach

P.O. Box 4252 70719 Fellbach

Germany Phone: +49 711 51822-0

Hotline: +49 711 51822-52 Fax: +49 711 51822-41

E-mail: info@lufft.de

or your local distributor.

17.1 Technical Support

Our Hotline is available for technical questions via the following e-mail address:

hotline@lufft.de

You can also consult frequently asked questions at http://www.lufft.com/ (menu header: FAQs).

46 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

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UMB Channel

Measuring Range

act

min

max

avg

special

Measurement Variable (float)

min

max

unit

Temperatures

100

120

140

160 temperature

-50.0

60.0

°C

105

125

145

165 temperature

-58.0

140.0

°F

110

130

150

170 dewpoint

-50.0

60.0

°C

115

135

155

175 dewpoint

-58.0

140.0

°F

111

wind chill temperature

-60.0

70.0

°C

116

wind chill temperature

-76.0

158.0

°F

114

wet bulb temperature

-50.0

60.0

°C

119

wet bulb temperature

-58.0

140.0

°F

112

wind heatertemp.

-50.0

150.0

°C

113

R2S heatertemp.

-50.0

150.0

°C

117

wind heatertemp.

-58.0

302.0

°F

118

R2S heatertemp.

-58.0

302.0

°F

Humidity

200

220

240

260 relative humidity

0.0

100.0

205

225

245

265 absolute humidity

0.0

1000.0

g/m³

210

230

250

270 mixing ratio

0.0

1000.0

g/kg

Enthalpy

215

specific enthalpy

-100.0

1000.0

kJ/kg

Pressure

300

320

340

360 abs. air pressure

300

1200

hPa

305

325

345

365 rel. air pressure

300

1200

hPa

Air Density

310

air density

0.0

3.0

kg/m³

Wind

vect. avg

400

420

440

460

480

wind speed

60.0

m/s

405

425

445

465

485

wind speed

216.0

km/h

410

430

450

470

490

wind speed

134.2

mph

415

435

455

475

495

wind speed

116.6

kts

401

wind speed fast

60.0

m/s

406

wind speed fast

216.0

km/h

411

wind speed fast

134.2

mph

416

wind speed fast

116.6

kts

403

wind speed standard deviation

60.0

m/s

413

wind speed standard deviation

134.2

Mph

500

520

540 580

wind direction

359.9

501

wind direction fast

359.9

502

wind direction corr.

359,9 ° 503

wind direction standard deviation

359.0 ° 805

wind value quality

100.0

Compass

510

compass heading

359

18 Appendix

18.1 Channel List Summary

The channel assignment applies to online data requests in binary and ASCII protocol.

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Precipitation Quantity

Range

Unit

600

float

Precipitation Quantity - Absolute

0 … 100000

liters/m²

620

float

Precipitation Quantity - Absolute

0 … 100000

640

float

Precipitation Quantity - Absolute

0 … 3937

inches

660

float

Precipitation Quantity - Absolute

0 … 3937008

mil

605

float

Precipitation Quantity - Differential

0 … 100000

liters/m²

625

float

Precipitation Quantity - Differential

0 … 100000

645

float

Precipitation Quantity - Differential

0 … 3937

inches

665

float

Precipitation Quantity - Differential

0 … 3937008

mil

Precipitation Type

700

Unsigned char

Precipitation Type

0 = No precipitation 60 = Liquid precipitation, e.g. rain 70 = Solid precipitation, e.g. snow

Precipitation Intensity

Range

unit

800

float

Precipitation Intensity

0 … 200.0

l/m²/h

820

float

Precipitation Intensity

0 … 200.0

mm/h

840

float

Precipitation Intensity

0 … 7.874

in/h

860

float

Precipitation Intensity

0 … 7874

mil/h

Global Radiation

900

920

940

960 Global Radiation

1400

W/m²

Note: The channels which are actually available are dependent on the WSx-UMB type in use.

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Operating Manual Compact Weather Station

DE Type

UMB Channel

Meaning

Format

Range

Resolution

Coding

1048

Result message Air Temperature LT

16 bit

-30 ...

+60°C

0.1°C

60.0 = 600d = 0258h

0.0 = 0d = 0000h

-0.1 = -1d = FFFFh

-30.0 = -300d = FED4h

1053

Result message Precipitation Intensity NI

16 bit

0 ... 200 mm/h

0.1 mm/h

0.0 = 0d = 0000h

200.0 = 2000d = 07D0h

1054

Result message Air Pressure LD

16 bit

800...1200

hPa

1 hPa

800 = 800d = 0320h 1200 = 1200d = 04B0h

1055

Result message Relative Humidity RLF

8 bit

10% ... 100%

1% RH

10% = 10d = 0Ah 100% = 100d = 64h

1056

Result message Wind Direction WR

16 bit

0 ... 359°

1°

0° (N) = 0d = 0000h 90° (O) = 90d = 005Ah 180° (S) = 180d = 00B4h 270° (W) = 270d = 010Eh FFFFh = not definable

1057

Result message Wind Speed. (average) WGM

16 bit

0.0 ... 60.0

m/s

0.1 m/s

0.0 = 0d = 0000h

60.0 = 600d = 0258h

1064

Result message Wind Speed (peak) WGS

16 bit

0.0 ... 60.0

m/s

0.1 m/s

0.0 = 0d = 0000h

60.0 = 600d = 0258h

1066

Result message Dewpoint Temperature TPT

16 bit

-30 ...

+60°C

0.1°C

60.0 = 600d = 0258h

0.0 = 0d = 0000h

-0.1 = -1d = FFFFh

-30.0 = -300d = FED4h

1071

Result message Precipitation Type NS

8 bit

0 = No precipitation 60 = Liquid precipitation, e.g. rain 70 = Solid precipitation, e.g. snow

18.2 Channel List Summary per TLS2002 FG3

The following channels are available specifically for data requests for further processing in TLS format. These channels are only avalibaleind the binary protocol.

Note: The channels which are actually available are dependent on the WSx-UMB type in use.

The previous channels 1153 and 1253 are no longer supported. Channels 840 and 860 can be used in their place.

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Operating Manual Compact Weather Station

Address (2 bytes = 16 bit)

Bits 15 – 12 (upper 4 bits)

Bits 11 – 8 (middle 4 bits)

Bits 7 – 0 (lower 8 bits)

Class ID (0 to 15)

Reserve

Device ID (0 – 255)

Broadcast

0 Broadcast

Compact Weather Station (WS200-UMB – WS600-UMB)

1 - 255

Available 15

Master or control devices

1 2 3 - 4

5 - 6 7 8 9 10

11 ... (8 + len)

optional

9 + len

10 + len 11 + len

12 + len

SOH

<ver>

<to>

<from>

<len>

STX

<cmd>

<verc>

ETX

<cs>

EOT

18.3 Communication in Binary Protocol

Only one example of an online data request is described in this operating manual. Please refer to the current version of the UMB Protocolfor all commands and the exact mode of operation of the protocol (available for download at www.lufft.com).

Note: Communication with the sensor takes place in accordance with the master-slave principle, i.e. there may only be ONE requesting unit on a network.

18.3.1 Framing

The data frame is constructed as follows:

SOH Control character for the start of a frame (01h); 1 byte <ver> Header version number, e.g.: V 1.0 <ver> = 10h = 16d; 1 byte <to> Receiver address; 2 bytes <from> Sender address; 2 bytes <len> Number of data bytes between STX and ETX; 1 byte STX Control character for the start of payload transmission (02h); 1 byte <cmd> Command; 1 byte <verc> Version number of the command; 1 byte <payload> Data bytes; 0 – 210 bytes ETX Control character for the end of payload transmission (03h); 1 byte <cs> Check sum, 16 bit CRC; 2 bytes EOT Control character for the end of the frame (04h); 1 byte Control characters: SOH (01h), STX (02h), ETX (03h), EOT (04h).

18.3.2 Addressing with Class and Device ID

Addressing takes place by way of a 16 bit address. This breaks down into a Class ID and a Device ID.

ID = 0 is provided as broadcast for classes and devices. Thus it is possible to transmit a broadcast on a specific class. However this only makes sense if there is only one device of this class on the bus; or in the case of a command, e.g. reset.

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Operating Manual Compact Weather Station

SOH

<ver>

<to>

<from>

<len>

STX

<cmd>

<verc>

ETX

<cs>

EOT

1 2 3 4 5 6 7 8 9

01h

10h

01h

70h

01h

F0h

04h

02h

23h

10h

64h

00h

03h

61h

D9h

04h

SOH

<ver>

<to>

<from>

<len>

STX

<cmd>

<verc>

<typ>

1 2 3 4 5 6 7 8 9

01h

10h

01h

F0h

01h

70h

0Ah

02h

23h

10h

00h

64h

00h

16h <value>

ETX

<cs>

EOT

00h

B4h

41h

03h

C6h

22h

04h

18.3.3 Examples for Creating Addresses

If, for example, you want to address WS400-UMB with the device ID 001, this takes place as follows:

The class ID for the compact weather station is 7d = 7h; the device ID is e.g. 001d = 001h

Putting the class and device IDs together gives the address 7001h (28673d).

18.3.4 Example of a Binary Protocol Request

If, for example, a compact weather station with the device ID 001 is to be polled from a PC for the current temperature, this takes place as follows:

Sensor:

The class ID for the compact weather stationis 7 = 7h; the device ID is 001 = 001h Putting the class and device IDs together gives a target address of 7001h.

PC:

The class ID for the PC (master unit) is 15 = Fh; the PC ID is e.g. 001d = 01h.

Putting the class and device IDs together gives a sender address of F001h. The length <len> for the online data request command is 4d = 04h; the command for the online data request is 23h; the version number of the command is 1.0 = 10h. The channel number is in <payload>; as can be seen from the channel list (page 47), the

current temperature in °C in the channel is 100d = 0064h. The calculated CRC is D961h.

The request to the device:

The response from the device:

Interpretation of the response:

<status> = 00h device o.k. (≠ 00h signifies error code; see page 52) <typ> = Data type of the following value; 16h = float (4 bytes, IEEE format) <value> = 41B40000h as a float value corresponds to 22.5 The temperature is therefore 22.5°C.

The correct data transmission can be checked with the aid of the check sum (22C6h). Note: Little Endian (Intel, low byte first) applies when transmitting word and float variables of

addresses or the CRC, for example. This means first the LowByte and then the HighByte.

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Operating Manual Compact Weather Station

Description

00h (0d)

Command successful; no error; all o.k.

10h (16d)

Unknown command; not supported by this device

11h (17d)

Invalid parameter

24h (36d)

Invalid channel

28h (40d)

Device not ready; e.g. initialization / calibration running

50h (80d)

Measurement variable (+offset) is outside the set display range

51h (81d)

52h (82d)

Measurement value (physical) is outside the measuring range (e.g. ADC over range)

53h (83d)

54h (84d)

Error in measurement data or no valid data available

55h ( 85d)

Device / sensor is unable to execute valid measurement due to ambient conditions

18.3.5 Status and Error Codes in Binary Protocol

If a measurement request delivers the <status> 00h, the sensor is working correctly. You can find a complete list of additional codes in the description of the UMB protocol.

Extract from list:

18.3.6 CRC Calculation

CRC is calculated according to the following rules: Norm: CRC-CCITT Polynomial: 1021h = x16 + x12 + x5 + 1 (LSB first mode) Start value: FFFFh You can find further information in the description of a CRC calculation in UMB Protocol.

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Operating Instructions Compact Weather Station

Command

Function

Online data request

Switches to binary protocol

k R

Triggers software reset



k D Software reset with delay



k I Device information

18.4 Communication in ASCII Protocol

Text-based communication with devices is possible using ASCII protocol. To do this, in the device configuration, interface settings, the protocol mode must be set to

ASCII (see page 27). ASCII protocol is network-compatible and serves exclusively for online data requests. The

device will not respond to incomprehensible ASCII commands. Note: The use of binary protocol is recommended for lengthy transmission routes (e.g.

network, GPRS/UMTS), as ASCII protocol is unable to detect transmission errors (not CRCsecured).

Note: TLS channels are not available in ASCII protocol.

18.4.1 Structure

An ASCII command is introduced by the ‘&’ character and completed by the CR (0Dh) sign. There is a space character (20h) between the individual blocks in each case; this is

represented by an underscore character ‘_’. Characters that represent an ASCII value are in

ordinary inverted commas.

18.4.2 Summary of ASCII Commands

These operating instructions describe the online data request only. You can find the description of the other commands in the UMB protocol.

18.4.3 Online Data Request (M) Description: By way of this command, a measurement value is requested from a specific

channel.

Request: ‘&’_<ID> Response: ‘$’_<ID>

_‘M’_<channel>

_<value>5 CR

<ID>5 Device address (5 decimal places with leading zeros) <channel>5 Indicates the channel number (5 decimal places with leading zeros) <value>5 Measurement value (5 decimal places with leading zeros); a measurement

value standardized to 0 – 65520d. Various error codes are defined from

65521d – 65535d. Example: Request: &_28673_M_00100 By way of this request, channel 100 of the device with address 28673 is interrogated

(compact weather station with device ID 001). Response: $_28673_M_00100_34785 This channel outputs a temperature from –50 to +60°C, which is calculated as follows:

0d corresponds to -50°C 65520d corresponds to +60°C 36789d corresponds to [+60°C – (-50°C)] / 65520 * 34785 +(-50°C) = 8.4°C

Note: TLS channels are not available in ASCII protocol.

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Operating Manual Compact Weather Station

Measurement Variable

Measuring Range

Min

Max

Unit

Temperature

Dew point

Wet Bulb Temperature

-50.0

60.0

°C

-58.0

140.0

°F

Wind chill temperature

-60.0

70.0

°C

-76.0

158.0

°F

Humidity

Relative humidity

0.0

100.0

Absolute humidity

Mixing ratio

0.0

1000.0

g/m³ g/kg

Specific Enthalpy

-100.0

1000.0

kJ/kg

Pressure

Relative air pressure

Absolute air pressure

300.0

1200.0

hPa

Air Density

air density

0.0

3.0

kg/m³

Wind

Wind speed

0.0

60.0

m/s

0.0

216.0

km/h

0.0

134.2

mph

0.0

116.6

kts

Wind direction

0.0

359.9

wind value quality

0.0

100.0

Rain

Quantity

0.0

6552.0

liters / m²

0.0

6552.0

0.0

257.9

inches

0.0

257952.7

mil

Quantity since last request

0.0

655.2

liters / m²

0.0

655.2

0.0

25.79

inches

0.0

25795.2

mil

Precipitation type

0 = No precipitation 60 = Liquid precipitation, e.g. rain 70 = Solid precipitation, e.g. snow

Precipitation intensity

0.0

200.0

l/m²/h

0.0

200.0

mm/h

0.0

7.874

in/h

0.0

7874

mil/h

Global Radiation

0.0

1400.0

W/m²

<code>

Description

65521d

Invalid Channel

65523d

Value Overflow

65524d

Value Underflow

65525d

Error in measurement data or no valid data available

65526d

Device / sensor is unable to execute valid measurement due to ambient conditions

65534d

Invalid Calibration

65535d

Unknown Error

18.4.4 Standardization of Measurement Values in ASCII Protocol

The standardization of measurement values from 0d – 65520d corresponds to the measuring range of the respective measurement variable.

18.4.5 Error Codes in the ASCII Protocol

Various error codes are defined from 65521d – 65535d in addition to the standardisation for the transmission of measurement values.

54 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

18.5 Communication in Terminal Mode

It is possible to communicate with a device in a very simple text-based manner using the terminal mode.

To do this, in the device configuration, interface settings, the protocol mode must be set to terminal (see page 27).

Note: In the case of communication in the terminal mode, only one single unit may be connected to the interface, as this protocol is NOT network-compatible. It is used for very simple measurement value requests.

Note: The use of binary protocol is recommended for lengthy transmission routes (e.g. network, GPRS/UMTS), as it is not possible to detect transmission errors in terminal mode (not CRC-secured).

Note: In the terminal mode, measurement values are not available in all units. Furthermore, status and error messages are not transmitted.

18.5.1 Structure

A terminal consists of an ASCII character and a numeric character. The command is completed with the <CR> sign. There is no echo on entry.

The individual values in the response are separated by a semi-colon (;). The response is completed with <CR><LF>.

An invalid terminal command is acknowledged with ‘FAILED’. Control commands are acknowledged with ‘OK’.

The command to which the response relates is given at the beginning of each response. Note: No response times are specified in the terminal mode.

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Operating Manual Compact Weather Station

18.5.2 Terminal Commands

The terminal commands transmit the following values or have the following functions:

E0<CR> Temperature in °C Ta C (Channel 100)

Dew point temperature in °C Tp C (Channel 110) Wind chill temperature in °C Tw C (Channel 111) Relative humidity in % Hr P (Channel 200) Relative air pressure in hPa Pa H (Channel 305) Wind speed in m/s Sa M (Channel 400) Wind direction in ° Da D (Channel 500) Precipitation quantity in mm Ra M (Channel 620) Precipitation type Rt N (Channel 700) Precipitation intensity in mm/h Ri M (Channel 820)

E1<CR> Temperature in °F Ta F (Channel 105)

Dew point temperature in °F Tp F (Channel 115) Wind chill temperature in °F Tw F (Channel 116) Relative humidity in % Hr P (Channel 200) Relative air pressure in hPa Pa H (Channel 305) Wind speed in mph Sa S (Channel 410) Wind direction in ° Da D (Channel 500) Precipitation quantity in inches Ra I (Channel 640) Precipitation type Rt N (Channel 700) Precipitation intensity in inches/h Ri I (Channel 840)

E2<CR> Act.wind speed in m/s Sa M (Channel 400)

Min. wind speed in m/s Sn M (Channel 420) Max. wind speed in m/s Sx M (Channel 440) Avg. wind speed in m/s Sg M (Channel 460) Vct. wind speed in m/s Sv M (Channel 480) Act.wind direction in ° Da D (Channel 500) Min. wind direction in ° Dn D (Channel 520) Max. winddirection in ° Dx D (Channel 540) Vct. wind direction in ° Dv D (Channel 580)

E3<CR> Act.wind speed in mph Sa S (Channel 410)

Min. wind speed in mph Sn S (Channel 430) Max. wind speed in mph Sx S (Channel 450) Avg. wind speed in mph Sg S (Channel 470) Vct. wind speed in mph Sv S (Channel 490) Act.wind direction in ° Da D (Channel 500) Min. wind direction in ° Dn D (Channel 520) Max. wind direction in ° Dx D (Channel 540) Vectorial wind direction in ° Dv D (Channel 580)

E4<CR> Act.compassheadingin ° Ca D (Channel 510)

Act.Global Radiation in W/m² Ga W (Channel 900) Min. Global Radiation in W/m² Gn W (Channel 920) Max. Global Radiation in W/m² Gx W (Channel 940) Avg. Global Radiation in W/m² Gg W (Channel 960) Act. Specific Enthalpy in KJ/Kg Ea J (Channel 215) Act. Wet Bulb Temperature in °C Ba C (Channel 114) Act.Wet Bulb Temperature in °F Ba F (Channel 119) Akt. Air Density in kg/m³ Ad G (Channel 310)

Mx<CR> Displays the same values as Ex<CR>, but without additional information such as the

measurement variable and unit

I0<CR> Serial number; date of manufacture; project number; parts list version;

SPLAN version; hardware version; firmware version; E2 version; device version

I1<CR> Outputs the device description R0<CR> Executes a device reset R1<CR> Resets the accumulated rain quantity and executes a device reset X0<CR> Temporarily switches to UMB binary protocol

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Operating Instructions Compact Weather Station

Examples:

E0<CR> E0;Ta+024.9C;Tp+012.2C;Tw+026.8C;Hr+045.0P;Pa+0980.6H;

Sa+005.1M;Da+156.6D;Ra+00042.24M;Rt+060N;Ri+002.6M;

M0<CR> M0;+024.9;+012.2;+026.8;+045.0;+0980.6;

+005.1;+156.6;+00042.24;+060;+002.6;

E2<CR> E2;Sa+005.1M;Sn+001.1M;Sx+007.1M;Sg+005.1M;Sv+005.0M;

Da+156.6D;Dn+166.6D;Dx+176.6D;Dv+156.6D;

M2<CR> M2;+005.1;+001.1;+007.1;+005.1;+005.0;

+156.6;+166.6;+176.6;+156.6;

I0<CR> I0;001;0109;0701;004;005;001;016;011;00002;<CR><LF>

R0<CR> R0;OK;<CR><LF>

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Operating Manual Compact Weather Station

Figure 25Sensor Configuration SDI-12

Figure 26Sensor Configuration SDI-12 Units

18.6 Communication in SDI-12 Mode

The communication in the SDI-12 mode of the WSxxx is conforming to the standard defined

in ‚SDI-12 A Serial-Digital Interface Standard for Microprocessor-Based Sensors Version 1.3 January 12, 2009‘ . The station may be operated in bus mode together with other SDI-12

sensors, connected to one SDI master (logger).

18.6.1 Preconditions for SDI-12 Operation

As the interface settings defined in the SDI-12 standard are significantly different from the UMB default settings, some preconditions have to be met for operation:

 Hardware version equal or higher 5  Software version equal or higher 2.2  Jumper for activation of SDI-12 mode has to be wired (see below)  Setting for SDI-12 mode in the configuration with UMB Config Tool (at least V1.2)

Note: To activate the SDI-12 mode a jumper has to be wired between the gray and pink wire of the connector cable.

Using the UMB Config Tool the protocol mode of the station has to be set to “SDI-12”. This will automatically set the baud rate to 1200.

Note: devices with older hardware can not to be set to SDI-12!

Measurement data can be transmitted alternatively in metric or US units. The selection is done by the UMB Config Tool.

Metric units US units

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Operating Instructions Compact Weather Station

When operating the device in SDI-12 mode it is basically no more possible to access the device with the UMB Config Tool, due to the different interface parameter settings. To enable configuration access nevertheless the interface is operated in standard UMB mode (19200 8N1) for the first 5 seconds after reset / power on. If a valid UMB telegram is received within this time, the device will stay in UMB mode for the configured time out (several minutes) so that the configuration can be modified.

 Connect the PC to the WSxxx-UMB through an RS-485 converter  Start the UMB Config Tool and create a WSxxx-UMB with the address of the actual

device and activate at least one sensor. Start the measurement (will report connection error at first)

 Reset the device (Power off / on)  When measurement values are received the measurement can be terminated, the

interface is now open for configuration.

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Operating Manual Compact Weather Station

Command

Function

Address search (Wildcard request, one device only on bus!)

Request device active?

aI!

Request device identification

aAb!

Address change to b ( 0 … 9, A …Z, a … z)

aM!

Measurement basic minimal data set

aM1!

Measurement temperatures

aM2!

Measurement humidity

aM3!

Measurement air pressure

aM4!

Measurement wind

aM5!

Measurement compass

aM6!

Measurement precipitation

aMC!

Measurement, basic minimal data set, transmit values with CRC

aMC1! ...

aMC6!

Measurement (assignment of values as for aMn! commands), transmit values with CRC

aC!

Concurrent measurement, full basic data set

aC1! ...

aC6!

Concurrent measurement, assignment of values as for aMn! commands, partly extended data sets

aCC!

Concurrent measurement, transmit values with CRC

aCC1! ...

aCC6!

Concurrent measurement, assignment of values as for aMn! commands, partly extended data sets, transmit values with CRC

aD0!

Data request buffer 0

aD1!

Data request buffer 1

aD2!

Data request buffer 2

aD3!

Data request buffer 3

aD4!

Data request buffer 4

aR0!

Data request from continuous measurement, data set 0

aR1!

Data request from continuous measurement, data set 1

aR2!

Data request from continuous measurement, data set 2

aR3!

Data request from continuous measurement, data set 3

aR4!

Data request from continuous measurement, data set 4

aRC0!

Data request from continuous measurement, data set 0 with CRC

aRC1!

Data request from continuous measurement, data set 1 with CRC

aRC2!

Data request from continuous measurement, data set 2 with CRC

aRC3!

Data request from continuous measurement, data set 3 with CRC

aRC4!

Data request from continuous measurement, data set 4 with CRC

aV!

Command verification: Evaluate sensor status and heating temperatures, data request with aD0!, aD1!

aXU<m/u>!

Change the unit system for SDI data

aXH+nnnn!

Set local altitude of the device for calculation of rel. air pressure

18.6.2 Command Set

For details of the SDI-12 protocol please refer to the above mentioned standard document. Following commands are available for devices of the WS family: Note: The examples in the following sections use italics to print the requests from the logger

( 0V! )

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Operating Instructions Compact Weather Station

Command

Function

aXMn!

Set the heating mode of the device

aXA<t/p/w>+nn!

Integration time for average and min/max evaluation

aXC!

Clear the abs. precipitation amount ( includes a device reset)

aXR!

Device reset

The composition of the minimal and the full basic data set depends on the variant (WS200 ... WS600) of the device in question (see below). The same applies to the availability of the additional measurement commands (aM1!, aC1! Etc.)

Due the applied measurement processes the devices of the WS family will, different from other sensors described in the SDI-12 document, always measure continuously. This causes some special properties:

 The device does not need a “Wakeup” and does not have a sleep mode. So the

reactions to “Break” signals and any related timings are inapplicable. “Break” will be

ignored by WS devices.

 Data requested with M- or C- commands are always available immediately. The

device will always respond with a000n resp. a000nn . This means the device will not send any service request and will ignore measurement abort signals. The logger should request the data immediately.

 M- and C- command only differ in the number of values made available in the buffers

(in both cases the maximum permitted by the standards of 9 resp. 20).

 We recommend to use the commands for continuous measurement (R-commands)

to request the data.

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Operating Manual Compact Weather Station

UMB (dec)

SDI-12 (ASCII)

‘0’

‘9’

‘A’

‘Z’

‘a’

‘z’

18.6.3 Address Configuration

UMB Device-ID and SDI-12 Address are connected, but the different address ranges and the fact, that UMB ID’s are integer numbers, while SDI-12 addresses are ASCII characters, have to be considered.

UMB Device ID1 (default) corresponds to SDI-12 Address ‘0’ (SDI-12 default).

Valid Address Ranges:

18.6.4 Data Messages

In the interest of simplified evaluation the assignment of measurement values to data buffers

‘0’ ... ‘9’ has been defined unified for all measurement commands. For this reason the

responses to C-requests have been restricted to 35 characters, not using the 75 characters permitted for these requests

Currently buffers ‘0’ to ‘4’ are in use. As with M-requests max. 9 values may be transmitted, the base data set of 9 values has

been assigned to buffers ‘0’ and ‘1’. Buffers ‘2’ to ‘4’ contain further measurement values.

This definition guaranties the compatibility to loggers designed according to older versions of the SDI-12 standard.

The buffer assignment depends on the device variant (WS200-UMB ... WS600-UMB). The complete set of measurement values, as defined for the UMB protocol has been made

available also in the SDI-12 environment. They can be accessed using the additional M and C commands (aM1! ... aM6!, aMC1! ... aMC6!, aC1! ... aC6!, aCC1! ... aCC6!) (see below).

If the measurement value is not available for some reason, e.g. sensor failure, this is indicated by a value of +999.0. or -999.9 The logger can then evaluate the reason of failure by a aV! verificationrequest.The following tables show the measurement values in the sequence they are arranged in the telegram (see example).

Depending on the configuration of the device the values will be transmitted in metric or US units.

Note: The configured system of units is not indicated in the data messages. The logger may request this setting with the I-command and adjust the evaluation of the data messages accordingly

Example: M Request from a WS600-UMB station

0M!

00009<CR><LF> 9 measurement values are available

0D0!

0+13.5+85.7+1017.0+2.5+3.7<CR><LF> Air temperature 13.5°C, rel. humidity 85.7%, rel. air pressure 1017hPa

avg. wind speed 2.5m/s, max wind speed 3.7m/s.

0D1!

0+43.7+9.8+60+4.4<CR><LF>

Wind direction 43.7° wet bulb temperature 9.8°C, type of precipitation 60 (rain), precipitation intensity 4.4mm/h

62 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Example: C Request from a WS600-UMB station

0M!

000020<CR><LF> 20 measurement values are available

0D0!

0+13.5+85.7+1017+2.5+3.7<CR><LF>

air temperature 13.5°C, rel. humidity 85.7%, rel. air pressure 1017hPa

avg. wind speed 2.5m/s, max wind speed 3.7m/s.

0D1!

0+43.7+9.8+60+4.4<CR><LF>

wind direction 43.7° wet bulb temperature 9.8°C, type of precipitation 60 (rain), precipitation intensity 4.4mm/h

0D2!

0+11.2+10.3+1.10<CR><LF>

dewpoint 11.2°C, wind chill temperature 10,3°C diff. precipitation 1.10mm

0D3!

0+3.2+0.0+3.5+100.0<CR><LF>

act. wind speed 3,2m/s, min. wind speed 0.0 m/s vect. avg. wind speed 3.5m/s, quality of wind values 100%

0D4!

0+43.7+41.3+45.7+29.3<CR><LF>

act. wind direction 43,7°, min. wind direction 41,3°, max. wind direction 45,7°, specific enthalpy29,3kJ/kg

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 63

Operating Manual Compact Weather Station

Measurement value

UMB Channel

Min

Max

Unit Buffer ‘0’

Air temperature (act)

100

-50.0

60.0

°C

Rel. Humidity (act)

200

0.0

100.0

Rel. Air Pressure

305

300.0

1200.0

hPa

Wind Speed (avg)

460

0.0

60.0

m/s

Wind Speed (max)

440

0.0

60.0

m/s

Buffer ‘1’

Wind Direction (vct)

580

0.0

359.9

Wet Bulb Temperature (act)

114

-50.0

60.0

°C

Precipitation Type

700

0, 60, 70

Precipitation Intensity

820

0.0

200.0

mm/h

Buffer ‘2’

Dew Point (act)

110

-50.0

60.0

°C

Windchill Temperature (act)

111

-60.0

70.0

°C

Amount of Precip. difference

625

0.00

100000.00

Buffer ‘3’

Wind Speed (act)

400

0.0

60.0

m/s

Wind Speed (min)

420

0.0

60.0

m/s

Wind Speed (vct)

480

0.0

60.0

m/s

Wind Quality

805

0.0

100.0

Buffer ‘4’

Wind Direction (act)

500

0.0

359.9

Wind Direction (min)

520

0.0

359.9

Wind Direction (max)

540

0.0

359.9

Specific Enthalpy (act)

215

-100.0

1000.0

kJ/kg

18.6.4.1 Buffer assignment Basic Data Set WS600-UMB

Device configured for measurement values in metric units:

Example: Request Buffer ‘0’

0D0!

0+13.5+85.7+2.5+3.7<CR><LF>

Air Temperature 13,5°C, rel. Humidity 85,7%, average wind speed 2,5m/s, peak wind speed 3,7m/s

64 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Air Temperature (act)

105

-58.0

140.0

°F

Rel. Humidity (act)

200

0.0

100.0

Rel. Air Pressure

305

300.0

1200.0

hPa

Wind Speed (avg)

470

0.0

134.2

mph

Wind Speed (max)

450

0.0

134.2

mph

Buffer ‘1’

Wind Direction (vct)

580

0.0

359.9

Wet Bulb Temperature (act)

119

-58.0

140.0

°F

Precipitation Type

700

0, 60, 70

Precipitation Intensity

840

0.000

7.874

in/h

Buffer ‘2’

Dew Point (act)

115

-58.0

140.0

°F

Windchill Temperature (act)

116

-76.0

158.0

°F

Amount of Precip. difference

645

0.0000

3937.0000

Buffer ‘3’

Wind Speed (act)

410

0.0

134.2

mph

Wind Speed (min)

430

0.0

134.2

mph

Wind Speed (vct)

490

0.0

134.2

mph

Wind Quality

805

0.0

100.0

Puffer ‘4’

Wind Direction(act)

500

0.0

359.9

Wind Direction (min)

520

0.0

359.9

Wind Direction (max)

540

0.0

359.9

Specific Enthalpy (act)

215

-100.0

1000.0

kJ/kg

Device configured for measurement values in US units:

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 65

Operating Manual Compact Weather Station

Measurement value

UMB Channel

Min

Max

Unit Buffer ‘0’

Air temperature (act)

100

-50.0

60.0

°C

Rel. Humidity (act)

200

0.0

100.0

Rel. Air Pressure

305

300.0

1200.0

hPa

Wind Speed (avg)

460

0.0

60.0

m/s

Wind Speed (max)

440

0.0

60.0

m/s

Buffer ‘1’

Wind Direction (vct)

580

0.0

359.9

Wet Bulb Temperature (act)

114

0.0

359.9

°C

Dew Point (act)

110

-50.0

60.0

°C

Windchill Temperature (act)

111

-60.0

70.0

°C

Buffer ‘2’

Wind Speed (act)

400

0.0

60.0

m/s

Wind Speed (min)

420

0.0

60.0

m/s

Wind Speed (vct)

480

0.0

60.0

m/s

Wind Quality

805

0.0

100.0

Buffer ‘3’

Wind Direction (act)

500

0.0

359.9

Wind Direction (min)

520

0.0

359.9

Wind Direction (max)

540

0.0

359.9

Specific Enthalpy (act)

215

-100.0

1000.0

kJ/kg

18.6.4.2 Buffer Assignment Basic Data Set WS500-UMB

Device configured for measurement values in metric units:

Example: Request Buffer ‘0’

0D0!

0+13.5+85.7+2.5+3.7<CR><LF>

Air Temperature 13,5°C, rel. Humidity 85,7%, average wind speed 2,5m/s, peak wind speed 3,7m/s

66 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Air Temperature (act)

105

-58.0

140.0

°F

Rel. Humidity (act)

200

0.0

100.0

Rel. Air Pressure

305

300.0

1200.0

hPa

Wind Speed (avg)

470

0.0

134.2

mph

Wind Speed (max)

450

0.0

134.2

mph

Buffer ‘1’

Wind Direction (vct)

580

0.0

359.9

Wet Bulb Temperatur (act)

119

-58.0

140.0

°F

Dew Point (act)

115

-58.0

140.0

°F

Windchill Temperature (act)

116

-76.0

158.0

°F

Buffer ‘2’

Wind Speed (act)

410

0.0

134.2

mph

Wind Speed (min)

430

0.0

134.2

mph

Wind Speed (vct)

490

0.0

134.2

mph

Wind Quality

805

0.0

100.0

Puffer ‘3’

Wind Direction(act)

500

0.0

359.9

Wind Direction (min)

520

0.0

359.9

Wind Direction (max)

540

0.0

359.9

Specific Enthalpy (act)

215

-100.0

1000.0

kJ/kg

Device configured for measurement values in US units:

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 67

Operating Manual Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Air Temperature (act)

100

-50.0

60.0

°C

Rel. Humidity (act)

200

0.0

100,0

Dew Point (act)

110

-50.0

60.0

°C

Abs. Air Pressure(act)

300

300.0

1200.0

hPa

Rel. Air Pressure (act)

305

300.0

1200.0

hPa

Buffer ‘1’

Precipitation Type

700

0, 60, 70

Precipitation Intensity

820

0.0

200.0

mm/h

Amount of Precip. Difference

625

0.00

100000.00

Amount of Precip. Absolute

620

0.0

100000.0

Buffer ‘2’

Air Temperature (min)

120

-50.0

60.0

°C

Air Temperature (max)

140

-50.0

60.0

°C

Air Temperature (avg)

160

-50.0

60.0

°C

Rel. Humidity (min)

220

0.0

100.0

Rel. Humidity (max)

240

0.0

100.0

Buffer ‘3’

Rel. Humidity (avg)

260

0.0

100.0

Rel. Air Pressure(min)

325

300.0

1200.0

hPa

Rel. Rel. Humidity (max)

345

300.0

1200.0

hPa

Rel. Rel. Humidity (avg)

365

300.0

1200.0

hPa

Wet Bulb Temperature (act)

114

-50.0

60.0

°C

Specific Enthalpy (act)

215

-100.0

1000.0

kJ/kg

18.6.4.3 Buffer Assignment Basic Data Set WS400-UMB

Device configured for measurement in metric units:

Example: Request Buffer ‘0’

0D0!

0+13.5+85.7+11.2+1017.0+1001.0

Air temperature 13,5°C, rel. humidity 85,7%, dew point 11,2°C, rel. air pressure 1017hPa, abs. pressure 1001hPa

68 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Air Temperature (act)

105

-58.0

140.0

°F

Rel. Humidity (act)

200

0.0

100.0

Dew Point (act)

115

-58.0

14.0

°F

Abs. Air Pressure(act)

300

300.0

1200.0

hPa

Rel. Air Pressure (act)

305

300.0

1200.0

hPa

Buffer ‘1’

Precipitation Type

700

0, 60, 70

Precipitation Intensity

840

0.000

7.874

in/h

Amount of Precip. Difference

645

0.0000

3937.0000

Amount of Precip. Absolute

640

0.000

3937.000

Buffer ‘2’

Air Temperature (min)

125

-58.0

140.0

°F

Air Temperature (max)

145

-58.0

140.0

°F

Air Temperature (avg)

165

-58.0

140.0

°F

Rel. Humidity (min)

220

0.0

100.0

Rel. Humidity (max)

240

0.0

100.0

Buffer ‘3’

Rel. Humidity (avg)

260

0.0

100.0

Rel. Air Pressure(min)

325

300.0

1200.0

hPa

Rel. Rel. Humidity (max)

345

300.0

1200.0

hPa

Rel. Rel. Humidity (avg)

365

300.0

1200.0

hPa

Wet Bulb Temperature (act)

119

-58.0

140.0

°F

Specific Enthalpy

215

-100.0

1000.0

kJ/kg

Device configured for measurement in US units:

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 69

Operating Manual Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Puffer ‘0’

Air Temperature (act)

100

-50.0

60.0

°C

Rel. Humidity (act)

200

0.0

100.0

Dew Point (act)

110

-50.0

60.0

°C

Abs. Air Pressure(act)

300

300.0

1200.0

hPa

Rel. Air Pressure (act)

305

300.0

1200.0

hPa

Puffer ‘1’

Air Temperature (min)

120

-50.0

60.0

°C

Air Temperature (max)

140

-50.0

60.0

°C

Air Temperature (avg)

160

-50.0

60.0

°C

Rel. Humidity (avg)

260

0.0

100.0

Puffer ‘2’

Rel. Humidity (min)

220

0.0

100,0

Rel. Humidity (max)

240

0.0

100,0

Rel. Air Pressure (min)

325

300.0

1200.0

hPa

Rel. Air Pressure (max)

345

300.0

1200.0

hPa

Rel. Air Pressure (avg)

365

300.0

1200.0

hPa

Puffer ‘3’

Abs. Humidity (min)

225

0.0

1000.0

g/m³

Abs. Humidity (max)

245

0.0

1000.0

g/m³

Abs. Humidity (avg)

265

0.0

1000.0

g/m³

Puffer ‘4’

Wet Bulb Temperature (act)

114

-50.0

60.0

°C

Specific Enthalpy (act)

215

-100.0

1000.0

kJ/kg

18.6.4.4 Buffer Assignment Basic Data Set WS300-UMB

Device configured for measurement in metric units:

Example: Request buffer ‘0’

0D0!

0+13.5+85.7+11.2+1017.0+1001.0

Air temperature 13,5°C, rel. humidity 85,7%, dew point 11,2°C, rel. air pressure 1017hPa, abs. pressure 1001hPa

70 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Air Temperature (act)

105

-58.0

140.0

°F

Rel. Humidity (act)

200

0.0

100.0

Dew Point (act)

115

-58.0

140.0

°F

Abs. Air Pressure(act)

300

300.0

1200.0

hPa

Rel. Air Pressure (act)

305

300.0

1200.0

hPa

Buffer ‘1’

Air Temperature (min)

125

-58.0

140.0

°F

Air Temperature (max)

145

-58.0

140.0

°F

Air Temperature (avg)

165

-58.0

140.0

°F

Rel. Humidity (avg)

260

0.0

100.0

Buffer ‘2’

Rel. Humidity (min)

220

0.0

100,0

Rel. Humidity (max)

240

0.0

100,0

Rel. Air Pressure (min)

325

300.0

1200.0

hPa

Rel. Air Pressure (max)

345

300.0

1200.0

hPa

Rel. Air Pressure (avg)

365

300.0

1200.0

hPa

Buffer ‘3’

Abs. Humidity (min)

225

0.0

1000.0

g/m³

Abs. Humidity (max)

245

0.0

1000.0

g/m³

Abs. Humidity (avg)

265

0.0

1000.0

g/m³

Buffer ‘4’

Wet Bulb Temperature (act)

119

-58.0

140.0

°F

Specific Enthalpy (act)

215

-100.0

1000.0

kJ/kg

Device configured for measurement in US units:

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 71

Operating Manual Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Wind Speed (avg)

460

0.0

60.0

m/s

Wind Speed (max)

440

0.0

60.0

m/s

Wind Direction (vct)

580

0.0

359.9

Wind Direction (act)

500

0.0

359.9

Compass Heading(act)

510

0.0

359.0

Buffer ‘1’

Wind Speed (act)

400

0.0

60.0

m/s

Wind Speed (min)

420

0.0

60.0

m/s

Wind Speed (vct)

480

0.0

60.0

m/s

Wind Quality

805

0.0

100.0

Buffer ‘2’

Wind Direction (min)

520

0.0

359.9

Wind Direction (max)

540

0.0

359.9

Wind Direction corr. (act)

502

0.0

359.9

18.6.4.5 Buffer Assignment Basic Data Set WS200-UMB

Device configured for measurement values in metric units:

Beispiel: Request Buffer ‘0’

0D0!

0+2.5+3.7+45.5+37.8+10.3<CR><LF>

Avg. wind speed 2,5m/s, peak wind speed 3,7m/s, avg wind direction (vect.) 45,5°, wind direction (act.) 37,8°, compass heading 10,3°

72 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Wind Speed (avg)

470

0.0

134.2

mph

Wind Speed (max)

450

0.0

134.2

mph

Wind Direction (vct)

580

0.0

359.9

Wind Direction (act)

500

0.0

359.9

Compass Heading(act)

510

0.0

359.0

Buffer ‘1’

Wind Speed (act)

410

0.0

134.2

mph

Wind Speed (min)

430

0.0

134.2

mph

Wind Speed (vct)

490

0.0

134.2

mph

Wind Quality

805

0.0

100.0

Buffer ‘2’

Wind Direction (min)

520

0.0

359.9

Wind Direction (max)

540

0.0

359.9

Wind Direction corr. (act)

502

0.0

359.9

Device configured for measurement values in US units:

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 73

Operating Manual Compact Weather Station

Measurement value

UMB Channel

Min

Max

Unit Buffer ‘0’

Air temperature (act)

100

-50.0

60.0

°C

Rel. Humidity (act)

200

0.0

100.0

Rel. Air Pressure

305

300.0

1200.0

hPa

Wind Speed (avg)

460

0.0

60.0

m/s

Wind Speed (max)

440

0.0

60.0

m/s

Buffer ‘1’

Wind Direction (vct)

580

0.0

359.9

Global Radiation (act)

900

0.0

1400.0

W/m²

Dew Point (act)

110

-50.0

60.0

°C

Windchill Temperature (act)

111

-60.0

70.0

°C

Buffer ‘2’

Wind Speed (act)

400

0.0

60.0

m/s

Wind Speed (min)

420

0.0

60.0

m/s

Wind Speed (vct)

480

0.0

60.0

m/s

Wind Quality

805

0.0

100.0

Buffer ‘3’

Wind Direction (act)

500

0.0

359.9

Wet Bulb Temperature (act)

114

-50.0

60.0

°C

Specific Enthalpy (act)

215

-100.0

1000.0

kJ/kg

Buffer ‘4’

Global Radiation (min)

920

0.0

1400.0

W/m²

Global Radiation (max)

940

0.0

1400.0

W/m²

Global Radiation (avg)

960

0.0

1400.0

W/m²

18.6.4.6 Buffer Assignment Basic Data Set WS501-UMB

Device configured for measurement values in metric units:

Example: Request Buffer ‘0’

0D0!

0+13.5+85.7+2.5+3.7<CR><LF>

Air Temperature 13,5°C, rel. Humidity 85,7%, average wind speed 2,5m/s, peak wind speed 3,7m/s

74 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Air Temperature (act)

105

-58.0

140.0

°F

Rel. Humidity (act)

200

0.0

100.0

Rel. Air Pressure

305

300.0

1200.0

hPa

Wind Speed (avg)

470

0.0

134.2

mph

Wind Speed (max)

450

0.0

134.2

mph

Buffer ‘1’

Wind Direction (vct)

580

0.0

359.9

Global Radiation (act)

900

0.0

1400.0

W/m²

Dew Point (act)

115

-58.0

140.0

°F

Windchill Temperature (act)

116

-76.0

158.0

°F

Buffer ‘2’

Wind Speed (act)

410

0.0

134.2

mph

Wind Speed (min)

430

0.0

134.2

mph

Wind Speed (vct)

490

0.0

134.2

mph

Wind Quality

805

0.0

100.0

Puffer ‘3’

Wind Direction(act)

500

0.0

359.9

Wet Bulb Temperature (act)

119

-58.0

140.0

°F

Specific Enthalpy (act)

215

-100.0

1000.0

kJ/kg

Buffer ‘4’

Global Radiation (min)

920

0.0

1400.0

W/m²

Global Radiation (max)

940

0.0

1400.0

W/m²

Global Radiation (avg)

960

0.0

1400.0

W/m²

Device configured for measurement values in US units:

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 75

Operating Manual Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Puffer ‘0’

Air Temperature (act)

100

-50.0

60.0

°C

Rel. Humidity (act)

200

0.0

100.0

Dew Point (act)

110

-50.0

60.0

°C

Global Radiation(act)

900

0.0

1400.0

W/m²

Rel. Air Pressure (act)

305

300.0

1200.0

hPa

Puffer ‘1’

Air Temperature (min)

120

-50.0

60.0

°C

Air Temperature (max)

140

-50.0

60.0

°C

Air Temperature (avg)

160

-50.0

60.0

°C

Rel. Humidity (avg)

260

0.0

100.0

Puffer ‘2’

Rel. Humidity (min)

220

0.0

100,0

Rel. Humidity (max)

240

0.0

100,0

Rel. Air Pressure (min)

325

300.0

1200.0

hPa

Rel. Air Pressure (max)

345

300.0

1200.0

hPa

Rel. Air Pressure (avg)

365

300.0

1200.0

hPa

Puffer ‘3’

Abs. Humidity (act)

205

0.0

1000.0

g/m³

Wet Bulb Temperature (act)

114

-50.0

60.0

°C

Specific Enthalpy (act)

215

-100.0

1000.0

kJ/kg

Puffer ‘4’

Global Radiation (min)

920

0.0

1400.0

W/m²

Global Radiation (max)

940

0.0

1400.0

W/m²

Global Radiation (avg)

960

0.0

1400.0

W/m²

18.6.4.7 Buffer Assignment Basic Data Set WS301-UMB

Device configured for measurement in metric units:

Example: Request buffer ‘0’

0D0!

0+13.5+85.7+11.2+1017.0+780.0

Air temperature 13,5°C, rel. humidity 85,7%, dew point 11,2°C, rel. air pressure 1017hPa, global radiation 780W/m²

76 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Air Temperature (act)

105

-58.0

140.0

°F

Rel. Humidity (act)

200

0.0

100.0

Dew Point (act)

115

-58.0

140.0

°F

Global Radiation(act)

900

0.0

1400.0

W/m²

Rel. Air Pressure (act)

305

300.0

1200.0

hPa

Buffer ‘1’

Air Temperature (min)

125

-58.0

140.0

°F

Air Temperature (max)

145

-58.0

140.0

°F

Air Temperature (avg)

165

-58.0

140.0

°F

Rel. Humidity (avg)

260

0.0

100.0

Buffer ‘2’

Rel. Humidity (min)

220

0.0

100,0

Rel. Humidity (max)

240

0.0

100,0

Rel. Air Pressure (min)

325

300.0

1200.0

hPa

Rel. Air Pressure (max)

345

300.0

1200.0

hPa

Rel. Air Pressure (avg)

365

300.0

1200.0

hPa

Buffer ‘3’

Abs. Humidity (act)

205

0.0

1000.0

g/m³

Wet Bulb Temperature (act)

119

-58.0

140.0

°F

Specific Enthalpy (act)

215

-100.0

1000.0

kJ/kg

Buffer ‘4’

Global Radiation (min)

920

0.0

1400.0

W/m²

Global Radiation (max)

940

0.0

1400.0

W/m²

Global Radiation (avg)

960

0.0

1400.0

W/m²

Device configured for measurement in US units:

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Operating Manual Compact Weather Station

18.6.5 Additional Measurement Commands

With the additional measurement commands

aM1! … aM6! aMC1! … aMC6! (M-Command, data transmission with CRC) aC1! … aC6! aCC1! … aCC6! (C- Command, data transmission with CRC)

the complete data set of the compact weather station, as defined for the UMB protocol are available in a SDI-12 environment as well.

The measurement values are ordered according to sensor types. Equally to the base data sets max. 9 values can be requested with an additional M

command, while an additional C request allows for up to 20 values. The buffer assignment as documented in the following paragraphs has consequently been

structured in a way that with each M command the buffers D0 and D1 are used. If the respective sensor type has more values available the buffers D2 up to D4 will be occupied if required.

M1 / C1 Temperature M: 8 Values C: 8 Values M2 / C2 Humidity M: 8 Values C: 12 Values M3 / C3 Air Pressure M: 8 Values C: 8 Values M4 / C4 Wind M: 9 Values C: 12 Values M5 / C5 Compass M: 1 Values C: 1 Values M6 / C6: Precipitation M: 4 Values C: 4 Values M7 / C7 Global Radiation M: 4 Values C: 4 Values

If the sensor type requested with the measurement command is not available with the actual variant of the compact weather station (WS200 ... WS600) the station will respond with

a0000<CR><LF>bzw.

a00000<CR><LF>

78 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Air Temperatur (act)

100

-50.0

60.0

°C

Air Temperatur (min)

120

-50.0

60.0

°C

Air Temperatur (max)

140

-50.0

60.0

°C

Air Temperatur (avg)

160

-50.0

60.0

°C

Dew Point (act)

110

-50.0

60.0

°C

Buffer ‘1’

Dew Point (min)

130

-50.0

60.0

°C

Dew Point (max)

150

-50.0

60.0

°C

Dew Point (avg)

170

-50.0

60.0

°C

Wet Bulb Temperature (act)

114

-50.0

60.0

°C

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Air Temperatur (act)

105

-58.0

140.0

°F

Air Temperatur (min)

125

-58.0

140.0

°F

Air Temperatur (max)

145

-58.0

140.0

°F

Air Temperatur (avg)

165

-58.0

140.0

°F

Dew Point (act)

115

-58.0

140.0

°F

Buffer ‘1’

Dew Point (min)

135

-58.0

140.0

°F

Dew Point (max)

155

-58.0

140.0

°F

Dew Point (avg)

175

-58.0

140.0

°F

Wet Bulb Temperature (act)

119

-58.0

140.0

°F

18.6.5.1 Buffer Assignment Additional Measurement Commands M1 / C1: Temperatur

Device configured for measurement values in metric units:

Example: Request with M command

0M1!

00008<CR><LF>

0D0!

0+12.5+10.7+13.5+11.8+5.3<CR><LF>

0D1!

0+4.2+5.9+5.6+9.8<CR><LF>

Device configured for measurement values in US units:

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 79

Operating Manual Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Rel. Humidity (act)

200

0.0

100.0

Rel. Humidity (min)

220

0.0

100.0

Rel. Humidity (max)

240

0.0

100.0

Rel. Humidity (avg)

260

0.0

100.0

Puffer ‘1’

Abs. Humidity (act)

205

0.0

1000.0

g/m³

Abs. Humidity (min)

225

0.0

1000.0

g/m³

Abs. Humidity (max)

245

0.0

1000.0

g/m³

Abs. Humidity (avg)

265

0.0

1000.0

g/m³

Specific Enthalpy (act)

215

-100.0

1000.0

kJ/kg

Puffer ‘2’

Mixing Ratio(act)

210

0.0

1000.0

g/kg

Mixing Ratio (min)

230

0.0

1000.0

g/kg

Mixing Ratio (max)

250

0.0

1000.0

g/kg

Mixing Ratio (avg)

270

0.0

1000.0

g/kg

18.6.5.2 Buffer Assignment Additional Measurement Commands M2 / C2: Humidity

Device configured for measurement values in metric or US units:

Example: Request with M command

0M2!

00008<CR><LF>

0D0!

0+48.5+48.2+48.8+48.5<CR><LF>

0D1!

0+5.7+5.5+5.9+5.7+29.3<CR><LF>

Example: Request with C command

0C2!

000012<CR><LF>

0D0!

0+48.5+48.2+48.8+48.5<CR><LF>

0D1!

0+5.7+5.5+5.9+5.7+29.3<CR><LF>

0D2!

0+4.6+4.4+5.0+4.6<CR><LF>

80 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Abs. Air Pressure(act)

300

300.0

1200.0

hPa

Abs. Air Pressure (min)

320

300.0

1200.0

hPa

Abs. Air Pressure (max)

340

300.0

1200.0

hPa

Abs. Air Pressure (avg)

360

300.0

1200.0

hPa

Air Density (act)

310

0.000

3.000

kg/m3

Puffer ‘1’

Rel. Air Pressure (act)

305

300.0

1200.0

hPa

Rel. Air Pressure (min)

325

300.0

1200.0

hPa

Rel. Air Pressure (max)

345

300.0

1200.0

hPa

Rel. Air Pressure (avg)

365

300.0

1200.0

hPa

18.6.5.3 Buffer Assignment Additional Measurement Commands M3 / C3: Air Pressure

Device configured for measurement values in metric or US units:

Example: Request with M command

0M3!

00009<CR><LF>

0D0!

0+1001.0+1000.0+1002.0+1001.0+1.119<CR><LF>

0D1!

0+1017.0+1016.0+1018.0+1017.0<CR><LF>

Example: Request with C command

0C3!

000009<CR><LF>

0D0!

0+1001.0+1000.0+1002.0+1001.0+1.119<CR><LF>

0D1!

0+1017.0+1016.0+1018.0+1017.0<CR><LF>

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Operating Manual Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Wind Speed (act)

400

0.0

60.0

m/s

Wind Speed (min)

420

0.0

60.0

m/s

Wind Speed (max)

440

0.0

60.0

m/s

Wind Speed (avg)

460

0.0

60.0

m/s

Wind Speed (vct)

480

0.0

60.0

m/s

Puffer ‘1’

Wind Direction (act)

500

0.0

359.9

Wind Direction (min)

520

0.0

359.9

Wind Direction (max)

540

0.0

359.9

Wind Direction (vct)

580

0.0

359.9

Puffer ‘2’

Wind Direction corr. (act)

502

0.0

359.9

Wind Quality

805

0.0

100.0

Windchill Temperature (act)

111

-60.0

70.0

°C

Wind Speed Standard Dev.

403

0.0

60.0

m/s

Wind Direction Standard Dev.

503

0.0

359.9

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Wind Speed (act)

410

0.0

134.2

Mph

Wind Speed (min)

430

0.0

134.2

Mph

Wind Speed (max)

450

0.0

134.2

Mph

Wind Speed (avg)

470

0.0

134.2

Mph

Wind Speed (vct)

490

0.0

134.2

Mph

Puffer ‘1’

Wind Direction (act)

500

0.0

359.9

Wind Direction (min)

520

0.0

359.9

Wind Direction (max)

540

0.0

359.9

Wind Direction (vct)

580

0.0

359.9

Puffer ‘2’

Wind Direction corr. (act)

502

0.0

359.9

Wind Quality

805

0.0

100.0

Windchill Temperature (act)

116

-76.0

158.0

°F

Wind Speed Standard Dev.

413

0.0

60.0

m/s

Wind Direction Standard Dev.

503

0.0

359.9

18.6.5.4 Buffer Assignment Additional Measurement Commands M4 / C4: Wind

Device configured for measurement values in metric units:

Device configured for measurement values in US units:

82 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Compass (act)

510

0.0

359.0

18.6.5.5 Buffer Assignment Additional Measurement Commands M5 / C5: Compass

Device configured for measurement values in metric or US units:

Example: Request with M command

0M5!

00001<CR><LF>

0D0!

0+348.0<CR><LF>

Example: Request with C command

0C5!

000001<CR><LF>

0D0!

0+348.0<CR><LF>

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 83

Operating Manual Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Precip. Amount absolute

620

0.0

100000.0

Precip. Amount difference

625

0.00

100000.00

Precipitation Intensity

820

0.0

200.0

mm/h

Precipitation Type

700

0, 60, 70

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Precip. Amount absolute

640

0.000

3937.000

Precip. Amount difference

645

0.0000

3937.0000

Precipitation Intensity

840

0.000

7.874

in/h

Precipitation Type

700

0, 60, 70

18.6.5.6 Buffer Assignment Additional Measurement Commands M6 / C6: Precipitation

Device configured for measurement values in metric units:

Example: Request with M command

0M6!

00004<CR><LF>

0D0!

0+1324.5+1.10+4.4+60<CR><LF>

Device configured for measurement values in US units:

84 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Measurement Value

UMB Channel

Min

Max

Unit Buffer ‘0’

Global Radiation (act)

900

0.0

1400.0

W/m²

Global Radiation (min)

920

0.0

1400.0

W/m²

Global Radiation (max)

940

0.0

1400,0

W/m²

Global Radiation (avg)

960

0.0

1400.0

W/m²

18.6.5.7 Buffer Assignment Additional Measurement Commands M7 / C7: Global Radiation

Device configured for measurement values in metric or US units:

Example: Request with M Command

0M7!

00004<CR><LF>

0D0!

0+780.0+135.0+920.0+530.0<CR><LF>

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 85

Operating Manual Compact Weather Station

Buffer ‘0’

Status buffer ‘0’: +nnnn

Air temperature, air temperature buffer, dew point, dew point buffer

Status buffer ‘1’: +nnnnnn

Rel. Humidity, rel. Humidity buffer, abs. Humidity, abs humidity buffer, mixing ration, mixing ration buffer

Status buffer ‘2’: +nnnnnn

Air pressure, air pressure buffer, wind, wind buffer, compass, precipitation

(WS301/501 transmits the global radiation status instead of the precipitation status)

Buffer ‘1’, device configured for metric units

Measurement value

UMB Channel

min

max

Unit Heating temp. Windsensor

112

-50

+150

°C

Heating temp. Precip. sensor

113

-50

+150

°C

Puffer ‘1’, device configured for US units

Heating temp. Wind sensor

117

-58

+302

°F

Heating temp. Precip. sensor

118

-58

+302

°F

18.6.6 Message Device Identification

The device responds to the identification request with following message (example for SDI12 device address ‘0’:

0I!

013Lufft.deWSx00ynnn

x: device type (4, 5, 6, 2, 3 ) y: Metric / US units ( m = metric, u = US ) nnn: Software version

i.e. for a WS600-UMB, configured for US units:

0I!

013Lufft.deWS600u022

18.6.7 Message Verification

The command verification aV! is used to evaluate status information of the device. The device responds with

a0005<CR<LF>

to the request, i.e. 5 values are available in the buffers.

The first 3 “measurement values”, transmitted in buffer ‘0’ contain the status information of

the measurement channels.

The status data of the channels are assembled to form “fake measurement values”, where

each digit represents one status. See below for the coding of states. Generally each sensor has two status values, one for the direct value, another for the measurement value buffer used for the evaluation of the average, min, and max values.

The last two values, transmitted in buffer ‘1’, show the heating temperatures of wind and precipitation sensor.

86 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Sensor status

Code

OK 0 UNGLTG_KANAL

E2_CAL_ERROR E2_CRC_KAL_ERR FLASH_CRC_ERR FLASH_WRITE_ERR FLASH_FLOAT_ERR

MEAS_ERROR

MEAS_UNABLE

INIT_ERROR

VALUE_OVERFLOW CHANNEL_OVERRANGE

VALUE_UNDERFLOW CHANNEL_UNDERRANGE

7 BUSY

other sensorstatus

Sensor status codes:

Example (WS600-UMB, SDI-12 Address ‘0’, no error):

0V!

00007<CR><LF>

0D0!

0+0000+000000+00000<CR><LF>

0D1!

0+73.0+65.3<CR><LF>

Example (WS600-UMB, SDI-12 Address ‘0’, compass failure):

0V!

00005<CR><LF>

0D0!

0+0000+000000+000030<CR><LF>

0D1!

0+73.0+65.3<CR><LF>

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 87

Operating Manual Compact Weather Station

18.6.8 Message Change of Unit System

The command is used to change the unit system used for the SDI12 data between metric and US units. It is implemented as manufacturer specific X command.

Command: aXU<u/m>! Response: aU<u/m><CR><LF> u : US units, m: metric units

Example: change to metric units, SDI-12 address ‘0’

0XUm!

0Um<CR><LF>

18.6.9 Message: Setting of the Averaging Interval Length

The avg, min, max and vct values of the measurement values are evaluated over a floating interval with a length of 1 to 10 min. The length of this interval can be adjusted separately for the groups temperature / humidity, air pressure and wind. (The averaging algorithm is not applied to precipitation and compass).

Command: aXA<t/p/w/r>+nn! t : Temperature and Humidity p: Air pressure w: Wind r: Global radiation nn: Interval in minutes, valid range: 1 bis 10 Response: aXA<t/p/w/r>+nn<CR><LF> The response to the attempt of setting of an invalid interval length is

aXAf<CR><LF>

Example: Setting the interval for temperature and humidity to 5 minutes

0XAt+5!

0XAt+5<CR><LF>

18.6.10 Message: Setting of the Local Altitude

For the calculation of the relative air pressure the local altitude of the device is required. Command:aXH+nnnn! nnnn: local altitude of the sensor in m Response: aXH+nnnn<CR><LF> The response to the attempt of setting of an invalid altitude ( -100 < altitude < 5000) is

aXHf<CR<<LF>

Example: The altitude of the installation location is 135m above sea level

0XH+135!

0XH+135<CR><LF>

88 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

18.6.11 Message: Setting the Heating Mode

The heating of the precipitation and the wind sensors can be configured in different operation modes (see chapter 10.4). Depending on the actual variant of the compact weather station (WS200 ...WS600) only certain combination of operating modes are available. The station evaluates the valid combinations from the station heating mode requested in the command automatically.

Command: aXMn! n: Heating Operating Mode (0: Automatic, 1: Mode 1, 2: Off, 3: Eco Mode 1) Response: aXMnm<CR><LF> n: Selected Heating Mode Wind Sensor m: Selected Heating Mode Precipitation Sensor The response to the attempt of setting an invalid operation mode is

aXMf<CR><LF>

Example: A WS400-UMB shall be set to Mode 1

0XM1!

0XM21<CR><LF>

As the WS400-UMB does not have a wind sensor the heating mode wind is automatically set to 2 (= Off).

18.6.12 Message: Clearing the Absolute Precipitation Amount

The command clears the accumulated absolute precipitation amount to 0.0mm. At the same time a station reset is applied..

Command: aXC! Response: aXCok<CR><LF> The response is followed by the station reset, i.e. the station will be offline for a few seconds.

Example:

0XC!

0XCok<CR><LF>

18.6.13 Message: Station Reset

The command initiates a station reset. Command: aXR! Response: aXRok<CR><LF> The response is followed by the station reset, i.e. the station will be offline for a few seconds.

Example:

0XR!

0XRok<CR><LF>

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 89

Operating Manual Compact Weather Station

Conformance Class 0

0x03

Read Holding Registers

Selected configuration settings

0x16

Write Multiple Registers

Selected configuration settings

Conformance Class 1

0x04

Read Input Registers

Measurement values and statusinformation

0x06

Write Single Register

Selected configuration settings

0x07

Read Exception Status

Currently not used

Diagnostics

0x11

Report Slave ID

(responds also tobroadcastaddress)

18.7 Communication in Modbus Mode

For a simpler integration of WS family Compact Weather Stations into a PLC environment the Modbus communication protocol has been made available.

Measurement values are mapped to Modbus Input Registers. The range of values available is basically the same as for the UMB protocol, including different unit systems.

In the interest of simple and safe integration the use of register pairs for floating point values or 32 bit integers, which is not part of the Modbus standard, has not been applied. All measurement values are mapped to 16bit integers using suitable scaling factors.

18.7.1 Modbus Communication Parameters

The WSxxx can be configured for MODBUS-RTU or for MODBUS-ASCII. The base configuration has to be done using the UMB Config Tool. When selecting MODBUS RTU or MODBUS-ASCII with the UMB Config Tool

communicationparameters 19200 Bd, evenparity, will be preselected. Modbus operating modes: MODBUS-RTU, MODBUS-ASCII Baudrate: 19200 (9600, 4800 or lower) Interface Setting 8E1, 8N1 NOTE:The Modbus communication has been tested for a poll rate of 1 sec. The proper

function of the Compact Weather Station with higher Modbus poll rates has not been tested. We suggest to set the poll rate to 10 sec or slower, as, with the exception of the channels

„wind speed / wind directions fast“, which are provided for special purposes, the update rate

of the data is >= 10sec. Anyway for most of the weather data significant changes have tob e expected more in the range of minutes.

18.7.2 Modbus Functions

The functions of conformance class 0 and 1 havebeen implemented as far as they are applicable for WSxxx, i.e. all functions operating on register level.

18.7.2.1 Function 0x03 Read Holding Registers The Holding Registers are used to make a selected set of adjustable parameters available

for Modbus access. As for the measurement values the parameters are mapped to 16bit integers.

90 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Reg. No.

Reg. Addr

Function

Values

Scale

1 0 Local Altitude

Altitude in m, for calculation of relative air pressure Value range -100 … 5000

1.0

2 1 Deviation

Local deviation for the correction of compass heading.

Value range -3599 … 3599 (equalling -359.9° … +359.9°)

10.0 3 2 Averaging Intervall TFF

Intervall for averaging and min/max evaluation in minutes

Value range 1 … 10

1.0

4 3 Averaging Intervall Air Pressure

Intervall for averaging and min/max evaluation in minutes

Value range 1 … 10

1.0 5 4

Averaging Intervall Wind

Intervall for averaging and min/max evaluation in minutes

Value range 1 … 10

1.0

6 5 Averaging Intervall Global Radiation

Intervall for averaging and min/max evaluation in minutes

Value range 1 … 10

1.0

7 6 Heating Mode

High-Byte: Heating Mode Wind Low-Byte Heating Mode R2S

Value range of each byte 0 … 3 (Details s. 10.4)

8 7 Reset abs. Rain

(Function only when writing to the register, reading will give 0 always)

9 8 Station reset

(Function only when writing to the register, reading will give 0 always)

18.7.2.2 Function 0x06 Write Holding Register, 0x16 Write Multiple Registers By writing into the holding registers selected parameters of the WSxxx can be adjusted

through Modbus. Register assignment see18.7.2.1 The transmitted values will be checked for plausibility. Illegal values will not be accepted and

cause a modbus exception. When writing the value 0x3247 (12871d) to register 6 the stored absolute rain amount will be

set to 0. Subsequently a station reset will be initiated. When writing the value 0x3247 (12871d) to register 7 a station reset will be initiated.

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 91

Operating Manual Compact Weather Station

Reg. No.

Reg. Addr

Value (UMB Channel)

Range

Scaling Factor, Remarks

Status Information

1 0 Identification

Low Byte: WS-Type (2,3,4,5,6) High Byte: Software Version

2 1 Device Status

3 2 Sensor Status 1

Air temperature, air temperature buffer, dew point, dew point buffer

Coding 4 bit per status, see below

4 3 Sensor Status 2

Rel.humidity, rel.humidity buffer, abs.humdity, abs.humidity buffer,

Coding 4 bit per status, see below

5 4 Sensor Status 3

Mixing ratio, mixing ration buffer, air pressure, air pressure buffer

Coding 4 bit per status, see below

6 5 Sensor Status 4

Wind, wind buffer, compass, precipitation

Coding 4 bit per status, see below

7 6 Reserve

8 7 Reserve

9 8 Reserve

10 9

Diagnostic: run time in 10sec steps

18.7.2.3 Function 0x04 Read Input Registers Theinput registersare containing the measurement values of the compact weather station

and the related status information. The measurement values are mapped to the 16bit registers using scaling factors (0 … max.

65530 for unsignedvalues, -32762 … 32762 for signedvalues). Values 65535 (0xffff) resp. 32767 are used for the indication of erroneous or not available

measurement values. A more detailed specification of the error can be evaluated from the status registers.

The assignment of values to the available register addresses (0 … 124) has been arranged in a way so that the user can read the most frequently used data with few (ideally only one) register block requests

Following blocks have been defined:

 Statusinformation  Frequently used values which are independent of the unit system (metric / imperial)

in use

 Frequently used values in metricunits  Frequently used values in imperial units  Other measurement values

When using the metric unit system the first three blocks can the supply all data usually required with one request.

There is no difference in the register assignment between the sub types of the WS family. If, dependent on the type, some value is not available, this will be indicated by setting the register to the error value.

For detailed information about measurement ranges, units etc. please refer to the related description of the UMB channels (Chapter 6 and 18.1)

92 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Reg. No.

Reg. Addr

Value (UMB Channel)

Range

Scaling Factor, signed/unsigned, Remarks

Values Independent of the Unit System

200

Relative Humidity (act.)

Factor 10, s

220

Relative Humidity (min.)

Factor 10, s

240

Relative Humidity (max.)

Factor 10, s

260

Relative Humidity (avg.)

Factor 10, s

305

Rel. Air Pressure (act.)

Factor 10, s

325

Rel. Air Pressure (min.)

Factor 10, s

345

Rel. Air Pressure (max.)

Factor 10, s

365

Rel. Air Pressure (avg.)

Factor 10, s

500

Wind Direction (act.)

Factor 10, s

520

Wind Direction (min.)

Factor 10, s

540

Wind Direction (max.)

Factor 10, s

580

Wind Direction (vct.)

Factor 10, s

501

Wind Direction fast

Factor 10, s

502

Wind Direction compass corr.

Factor 10, s

510

Compass

Factor 10, s

805

Wind Measurement Quality

Factor 1, s

700

Precipitation Type

Factor 1, u

900

Global Radiation

Factor 10, s

920

Global Radiation

Factor 10, s

940

Global Radiation

Factor 10, s

960

Global Radiation

Factor 10, s

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 93

Operating Manual Compact Weather Station

Reg. No.

Reg. Addr

Value (UMB Channel)

Range

Scaling Factor, signed/unsigned Remarks

Values in Metric Units

100

Air Temperature °C (act.)

Factor 10, s

120

Air Temperature °C (min.)

Factor 10, s

140

Air Temperature °C (max.)

Factor 10, s

160

Air Temperature °C (avg.)

Factor 10, s

110

Dew Point °C (akt.)

Factor 10, s

130

Dew Point °C (min.)

Factor 10, s

150

Dew Point °C (max.)

Factor 10, s

170

Dew Point °C (avg.)

Factor 10, s

111

Wind Chill-Temperature °C

Factor 10, s

112

Heating Temperature Wind °C

Factor 10, s

113

Heating Temperature R2S °C

Factor 10, s

400

Wind Speed m/s (akt.)

Factor 10, s

420

Wind Speed m/s (min.)

Factor 10, s

440

Wind Speed m/s (max.)

Factor 10, s

460

Wind Speed m/s (avg.)

Factor 10, s

480

Wind Speed m/s (vct.)

Factor 10, s

401

Wind Speed fast m/s

Factor 10, s

620

Precipitation abs. mm

Factor 100, u, limited to

655.34mm

620

Precipitation diff. mm

Factor 100, u, limited to

100.00mm

820

Precipitation intens. mm/h

Factor 100, u, limited to

200.00mm/h

94 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Reg. No.

Reg. Addr

Value (UMB Channel)

Range

Scaling Factor, signed/unsigned Remarks

Values in US Units

105

Air Temperatur °F (act.)

Factor 10, s

125

Air Temperatur °F (min.)

Factor 10, s

145

Air Temperatur °F (max.)

Factor 10, s

165

Air Temperatur °F (avg.)

Factor 10, s

115

Dew Point °F (act.)

Factor 10, s

135

Dew Point °F (min.)

Factor 10, s

155

Dew Point °F (max.)

Factor 10, s

175

Dew Point °F (avg.)

Factor 10, s

116

Wind Chill-Temperature °F

Factor 10, s

117

Heating Temperature Wind °F

Factor 10, s

118

Heating Temperature R2S °F

Factor 10, s

410

Wind Speed mph (act.)

Factor 10, s

430

Wind Speed mph (min.)

Factor 10, s

450

Wind Speed mph (max.)

Factor 10, s

470

Wind Speed mph (avg.)

Factor 10, s

490

Wind Speed mph (vct.)

Factor 10, s

411

Wind Speed fast mph

Factor 10, s

640

Precipitation abs. In

Factor 1000, u, limited to

25.800 in

640

Precipitation diff. in

Faktor 10000, u, limited to 3.9370in

840

Precipitation Intens. in/h

Faktor 10000, u, limited to 6.5534 in

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 95

Operating Manual Compact Weather Station

Reg. No.

Reg. Addr

Value (UMB Channel)

Range

Scaling Factor, signed/unsigned, Remarks

Further Values

205

Absolute Humidity (act.)

Factor 10, s

225

Absolute Humidity (min.)

Factor 10, s

245

Absolute Humidity (max.)

Factor 10, s

265

Absolute Humidity (avg.)

Factor 10, s

210

Mixing Ratio (act.)

Factor 10, s

230

Mixing Ratio (min.)

Factor 10, s

250

Mixing Ratio (max.)

Factor 10, s

270

Mixing Ratio (vct.)

Factor 10, s

300

Abs. Air Pressure (act.)

Factor 10, s

320

Abs. Air Pressure (min.)

Factor 10, s

340

Abs. Air Pressure (max.)

Factor 10, s

360

Abs. Air Pressure (avg.)

Factor 10, s

405

Wind Speed km/h (act.)

Factor 10, s

425

Wind Speed km/h (min.)

Factor 10, s

445

Wind Speed km/h (max.)

Factor 10, s

465

Wind Speed km/h (avg.)

Factor 10, s

485

Wind Speed km/h (vct.)

Factor 10, s

415

Wind Speed kts (act.)

Factor 10, s

435

Wind Speed kts (min.)

Factor 10, s

455

Wind Speed kts (max.)

Factor 10 , s

475

Wind Speed kts (avg.)

Factor 10, s

495

Wind Speed kts (vct.)

Factor 10, s

406

Wind Speed fast km/h

Factor 10, s

416

Wind Speed fast kts

Factor 10, s

403

Wind Speed Std. Dev. m/s

Factor 100, s

413

Wind Speed Std. Dev. mph

Factor 100, s

503

Wind Dir. Standard Dev.

Factor 100, s

114

Wet Bulb Temp. °C (act)

Factor 10, s

100

119

Wet Bulb Temp. °F (act)

Factor 10, s

101

100

215

Specific Enthalpy (act)

Factor 10, s

102

101

310

Air Density (act)

Factor 1000, s

...

Reserved

125

124

Sensor Status: Each register hoIds 4 sensor status coded with 4 bits per status. The sequence defined in the table above is to understand as from most significant half byte to least significant half byte. Most of the sensors have two status values, one for the sensor itself and the current measurement value, another one for the buffer, from which average, min. And max values are evaluated.

96 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

Sensor State

Code

UNGLTG_KANAL

E2_CAL_ERROR E2_CRC_KAL_ERR FLASH_CRC_ERR FLASH_WRITE_ERR FLASH_FLOAT_ERR

MEAS_ERROR, MEAS_UNABLE

3 INIT_ERROR

VALUE_OVERFLOW CHANNEL_OVERRANGE VALUE_UNDERFLOW CHANNEL_UNDERRANGE

BUSY

Other Sensor State

Following table shows the status coding:

Coding of Sensor Status:

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 97

Operating Manual Compact Weather Station

19 List of Figures

Figure 1: Sensor Technology ........................................................................................................................................... 11

Figure 2: Fastening to the Mast ........................................................................................................................................ 19

Figure 3: North Markings .................................................................................................................................................. 20

Figure 4: Alignment to North ............................................................................................................................................. 20

Figure 5: Installation Sketch ............................................................................................................................................. 22

Figure 6: Connections ...................................................................................................................................................... 23

Figure 7: Connection to ISOCON-UMB ................................................................ ............................................................ 24

Figure 8: Sensor Selection ............................................................................................................................................... 26

Figure 9: General Settings ................................................................................................................................................ 27

Figure 10 Temperature, Humidity and Fan Settings ......................................................................................................... 27

Figure 11 Pressure and Wind Settings ................................................................................................ ............................. 28

Figure 12 Rain Gauge Settings ........................................................................................................................................ 29

Figure 13 Energy Management Settings .......................................................................................................................... 29

Figure 14: Reset Precipitation Quantity ............................................................................................................................ 30

Figure 15 Measurement Polling Channels ........................................................................................................................ 31

Figure 16 Example of Measurement Polling ..................................................................................................................... 31

Figure 17: Operating Modes for Equipment Heating ........................................................................................................ 32

Figure 18: WS200-UMB ................................................................................................................................................... 38

Figure 19: WS300-UMB ................................................................................................................................................... 38

Figure 20: WS301-UMB ................................................................................................................................................... 39

Figure 21: WS400-UMB ................................................................................................................................................... 40

Figure 22: WS500-UMB ................................................................................................................................................... 41

Figure 23: WS501-UMB ................................................................................................................................................... 42

Figure 24: WS600-UMB ................................................................................................................................................... 43

Figure 25Sensor Configuration SDI-12............................................................................................................................. 58

Figure 26Sensor Configuration SDI-12 Units ................................................................................................................... 58

98 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Operating Instructions Compact Weather Station

20 Index

Accessories .................................................................... 8

Accuracy ...................................................................... 36

Air Density .............................................................. 10, 14

Air Pressure ............................................................. 9, 13

Air Temperature ............................................................. 9

Altitude ......................................................................... 28

ASCII-Protokoll ............................................................. 53

Binary Protocol ............................................................. 50

Certificate of Conformity ............................................... 44

Channel List ................................................................. 47

Channel List per TLS2002 ............................................ 49

Class ID .................................................................. 50, 51

Commissioning ............................................................. 25

Communication ...................................................... 53, 55

Communication ............................................................ 90

Compass .......................................................... 10, 16, 28

Configuration ................................................................ 26

Connections ................................................................. 23

Data Request ............................................................... 50

Declination ................................................................... 28

Delivery Status ............................................................. 26

Designated Use .............................................................. 5

Device ID ................................................................ 50, 51

Dimensions .................................................................. 35

Disposal ....................................................................... 46

Distance between objects ............................................ 21

Drawings ...................................................................... 38

Energy Management .................................................... 29

Enthalpy ................................................................... 9, 14

Error Codes ............................................................ 52, 54

Factory Settings ........................................................... 26

Fan ............................................................................... 27

Fault Description .......................................................... 45

Firmware Update .......................................................... 34

Global Radiation ................................ ..................... 10, 18

Guarantee ................................................................ 5, 46

Heating ........................................... 10, 18, 23, 24, 32, 35

Humidity ................................................................... 9, 13

Incorrect Use ................................................................. 5

Installation .................................................................... 19

Installation Location ..................................................... 21

Interface ................................................................. 23, 35

ISOCON-UMB ............................................................. 24

Local Altitude ............................................................... 28

Maintenance ................................................................ 34

Measurement Output ................................................... 13

Measurement Polling (UMB-Config-Tool) .................... 31

Measurement Values ................................................... 12

Measuring Range......................................................... 36

Modbus ........................................................................ 90

North Alignment ........................................................... 20

Operating Conditions ................................................... 35

Order Numbers .............................................................. 6

Power Supply Unit ....................................................... 23

Precipitation ............................................................. 9, 17

Protectiontype .............................................................. 35

Relative Air Pressure ................................................... 28

Reset Precipitation Quantity ........................................ 30

Safety Instructions ......................................................... 5

Scope of Delivery ........................................................... 6

SDI-12 Mode .......................................................... 23, 58

Sensor Technology ...................................................... 11

Storage Conditions ...................................................... 35

Supply Voltage ............................................................. 23

Symbols Used ................................................................ 5

Technical Data ............................................................. 35

Technical Support ........................................................ 46

Temperature ................................................................ 13

Terminal-Mode ............................................................. 55

Test .............................................................................. 26

UMB-Config-Tool ................................................... 26, 31

Weight .......................................................................... 35

WetBulb Temperature .............................................. 9, 14

Wind ....................................................................... 10, 15

G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany 99

Operating Manual Compact Weather Station

Blank page for printing purposes.

100 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany

Lufft WS200-UMB, WS301-UMB, WS400-UMB, WS500-UMB, WS501-UMB Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Please Read Before Use

1.1 Symbols Used

1.2 Safety Instructions

1.3 Designated Use

1.4 Incorrect Use

1.5 Guarantee

1.6 Brand Names

2 Scope of Delivery

3 Order Numbers

3.1 Accessories

3.2 Spare Parts

3.3 Additional Documents and Software

4 Equipment Description

4.1 Air Temperature and Humidity

4.2 Air Pressure

4.3 Precipitation

4.4 Wet Bulb Temperature

4.5 Specific Enthalpy

4.6 Air Density

4.7 Wind

4.8 Compass

4.9 Heating

4.10 Global Radiation

4.11 Sensor Technology (example: WS600-UMB)

5 Generation of Measurements

5.1 Current Measurement (act)

5.2 Minimum and Maximum Values (min and max)

5.3 Average Value (avg)

5.4 Vectorial Average Value (vct)

6 Measurement Output

6.1 Air and Dewpoint Temperature

6.2 Wind Chill Temperature

6.3 Humidity

6.4 Air Pressure

6.5 Wet Bulb Temperature

6.6 Specific Enthalpy

6.7 Air Density

6.8 Wind Speed

6.9 Wind Direction

6.10 Wind Measurement Quality

6.11 Compass

6.12 Precipitation Quantity - Absolute

6.13 Precipitation Quantity - Differential

6.14 Precipitation Intensity

6.15 Precipitation Type

6.16 Heating Temperature

6.17 Global Radiation

7 Installation

7.1 Fastening

7.2 North Alignment

7.3 Selecting the Installation Location

7.3.1 General Instructions

7.3.2 Sensors with Wind Measurement

7.3.3 Sensors with Precipitation Measurement

7.3.4 Sensors with Global Radiation Measurement

7.3.5 Installation Sketch

8 Connections

8.1 Supply Voltage

8.1.1 Limitations in 12V mode

8.2 RS485 Interface

8.3 Connection to ISOCON-UMB (8160.UISO)

8.4 Use of Surge Protection (8379.USP)

9 Commissioning

10 Configuration and Test

10.1 Factory Settings

10.2 Configuration with the UMB-Config-Tool

10.2.1 Sensor Selection

10.2.2 Configuration

10.2.3 General Settings

10.2.4 Temperature, Humidity and Fan Settings

10.2.5 Pressure, Wind and Compass Settings

10.2.6 Rain Gauge Settings

10.2.7 Energy Management

10.2.8 Reset Precipitation Quantity

10.3 Function Test with UMB-Config-Tool

10.3.1 Channels for Measurement Polling