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FuehlerSysteme FS6002 Скачать руководство пользователя страница 9

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71130/11E/0318

Individual output scaling of the measuring ranges is possible; see

Command OL, Output Link

.

These outputs are either active or inactive depending on the model.

Serial and analogue output of the data can take the form of an instantaneous value or a sliding
mean.

Device models without GPS nevertheless have a battery-backed real-time clock, which can be
used to output a date and time stamp in the data telegrams.

The WEATHER STATION is equipped with a built-in heating system, so more or less stopping ice
or snow from building up on the device.

3 Mode of operation

3.1 Wind measurement:

The wind speed measuring module of the

WEATHER STATION

consists of 4 ultrasonic converters,

arranged in pairs of two facing each other via a reflector. The two resulting measurement paths are
at right angles to each other. The converters function both as acoustic transmitters and acoustic
receivers.
The electronic control system is used to select the respective measurement path and its measuring
direction. When measurement starts, a sequence of 4 individual measurements is performed in all
4 directions of the measurement paths in a basic measuring cycle of one millisecond.
The measuring directions (sound propagation directions) rotate clockwise. Mean values are
calculated from the 4 individual measurements of the path directions and then used for further
calculations. The time required for a measuring sequence at the maximum measuring speed is
exactly 10.0 milliseconds (measuring sequence 8ms + 2ms for analysis).

3.1.1 Measuring principle: Wind speed and direction

The propagation speed of sound in calm air is superposed by the speed components of an airflow
in the direction of the wind. A wind speed component in the propagation direction of the sound
supports its speed of propagation, so causing it to increase. On the other hand, a wind speed
component against the propagation direction reduces the speed of propagation. The propagation
speed resulting from superposition results in different propagation times of the sound at different
wind speeds and directions over a fixed measurement path.

As the speed of sound greatly depends on the temperature of the air, the sound propagation time is
measured on each of the two measurement paths in both directions. These rules out the
measurement result being influenced by temperature.

By combining two measuring paths at right angles to each other, the sum and angle of the wind
speed vector are obtained in the form of rectangular components. After the rectangular speed
components have been measured, they are converted to polar coordinates by the WEATHER
STATION microprocessor and then output as a sum and angle of wind speed.

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Содержание FS6002

Страница 1: ...1 80 ba_7 1 130 11E 0318 Weather Station FS6002 Instructions for Use...

Страница 2: ...ct is designed for a specific application as described in these operating instructions The device product should be operated with the accessories and consumables supplied and or recommended by the man...

Страница 3: ...nnector installation 15 5 3 2 Connection diagram for 16 core cable function example 17 5 3 3 Connection with optional 16 core cable 509311 17 5 3 4 Connection diagram for 8 core cable function example...

Страница 4: ...WEATHER STATION by customer 36 9 List of commands 37 10 Commands and descriptions 38 11 Appendix 1 Predefined data telegrams 57 11 1 Telegram 1 VDT 57 11 2 Telegram 2 VDTHP 57 11 3 Telegram 3 VDTBDRE...

Страница 5: ...rke nicht definiert Table 4 MODBUS frame 20 Table 5 MODBUS exceptions 20 Table 6 MODBUS input register 27 Table 7 List of commands 28 Table 8 Factory set Scaling of analogue outputs 30 Table 9 List of...

Страница 6: ...d BINARY Modbus RTU in half duplex mode 2 Application The WEATHER STATION is used for acquisition of the most important meteorological parameters Depending on the development level the device supplies...

Страница 7: ...for use in the following sectors Building services management Traffic control Meteorology Industry Energy Supply Environmental monitoring The wind speed and wind direction are determined through the a...

Страница 8: ...cally to the north direction The electronic north correction affects only the vectorial brightness direction see command BO A GPS receiver which is built in with certain models is used for the determi...

Страница 9: ...lockwise Mean values are calculated from the 4 individual measurements of the path directions and then used for further calculations The time required for a measuring sequence at the maximum measuring...

Страница 10: ...r pressure and only depends on the absolute air humidity to an insignificant extent This physical relationship between the speed of sound and temperature can be used to measure the temperature of the...

Страница 11: ...ertical position of the sun equinox in our latitudes For meaningful mapping of the intensity dynamic for brightness with 5 orders of magnitude the photo sensors output a current which is logarithmical...

Страница 12: ...r The type of precipitation can be roughly determined from the measured values of rainfall speed intensity temperature and humidity The following table shows the codes for the identifiable types of pr...

Страница 13: ...it must be ensured that no water gets into the base of the device or plug connector The instrument must be mounted and wired only by qualified personnel who knows and observes the generalities of tech...

Страница 14: ...xact determination of the wind and Brightness direction the WEATHER STATION must be installed aligned to north true north When aligning the device the marking for north N must point to north true nort...

Страница 15: ...supply and data communications 0 25mm cable diameter max 8 0mm resistant to ultraviolet rays overall shielding Note A prepared connecting cable is available for the WEATHER STATION as an optional acc...

Страница 16: ...hielding Thread shield wires into crown all round 5 Engage distance sleeve and clamping device 6 Slide assembled unit backwards over cable approx 10mm 7 Solder inserts in place 8 Slide assembled unit...

Страница 17: ...gue 0 10V Precipitation intensity H BLUE GND isolated Analogue earth I GREY GND isolated Analogue earth L YELLOW TXD RXD HD Serial interface RS485 K GREEN TXD RXD HD Serial interface RS485 U BROWN RXD...

Страница 18: ...RS485 U BROWN RXD full duplex Serial interface RS485 M WHITE RXD full duplex Serial interface RS485 R E RED 24V AC DC nom Power supply F D BLUE 24V AC DC nom Power supply G SCH GREEN YELLOW CABLE SHI...

Страница 19: ...n The WEATHER STATION does not contain any adjustable components such as mechanical or electrical trimming elements All components and materials are invariant over time There is thus no need for regul...

Страница 20: ...es a 16 bit CRC check sum initial value 0xffff Slave address Function code Data CRC 1 byte 1 byte 0 252 byte s 2 bytes CRC low byte CRC high byte Table 2 MODBUS frame The following MODBUS functions ar...

Страница 21: ...signed integer 32Bit by 0x7FFFFFFF type U32 unsigned integer 32Bit by 0xFFFFFFFF These outputs must be identified and be discarded Register address Parameter name Unit Multiplier Explanation Data type...

Страница 22: ...U32 30803 0x7853 Relative air pressure referred to standard elevation zero NHN hPa 100 Value 100 to 2 decimal places e g 105000 1050 00hPa U32 31201 0x79E1 Brightness north fixed device assignment klu...

Страница 23: ...precipitation U32 31403 0x7AAB Precipitation intensity for last minute extrapolated to an hour mm h 1000 Value 3 decimal places e g 12345 12 345mm h U32 31405 0x7AAD Amount of precipitation is reset a...

Страница 24: ...1 measured value was incorrect U32 Complete sequence of measuring values from 35001 35001 0x88B9 Mean wind speed 30003 1 m s 10 Value 10 to 1 decimal place e g 101 10 1m s U32 35003 0x88BB Mean wind...

Страница 25: ...rameters of the sun azimuth address 35051 1 value no decimal place e g 120 120 U32 35031 0x88D7 Brightness maximum value of 4 single sensors 31213 1 klux 10 Value 10 to 1 decimal place e g 1200 120 0k...

Страница 26: ...counter 34997 1 ms 1 Value no decimal place internal ms counter U32 35061 0x88F5 Error status of last measured value 34999 1 1 Value no decimal place 0 no error 1 measured value was incorrect U32 3506...

Страница 27: ...5 C S32 35087 0x890F Heat index temperature Valid if the air temperature 26 C and rel humidity 40 30411 1 C 10 Value 10 1 decimal place e g 255 25 5 C S32 Table 4 MODBUS input register 1 The figures i...

Страница 28: ...Read1 Write2 Command AV 40015 14 Averaging interval for wind speed and wind direction 0 6000 x100ms Without Admin Command BP 40031 30 Parit t s Command BP Without Admin Command BR 40005 4 Baud rate s...

Страница 29: ...ffer x 5 8 gef llt 5 Buffer 5 8 x 3 4 gef llt 6 Buffer 3 4 x 7 8 gef llt 7 Buffer 7 8 x 1 gef llt Bit 2 Bit 3 Bit 4 Plausibility on Is set when plausibility is activated Bit 5 Static error Is set when...

Страница 30: ...10V AQ00100 Daily sum of precipitation 0 100mm d 0 10V AP00000 Pr zipitation Status 0 1 0 10V AT14060 Air temperature 40 60 C 0 10V AR00060 Wind speed 0 60m s 0 10V Fixed scale Wind direction 0 360 0...

Страница 31: ...0 It is a basic principle that only valid values are written to the averaging puffer The size of the buffer is not determined by the number of data records but by the difference in the time stamp betw...

Страница 32: ...arameter OR 7 4 1 Data request Command TR is used to request data from the WEATHER STATION This command has no access protection After processing the command the device sends back a response telegram...

Страница 33: ...BDD TT T hhh pppp p nnnnnn eeeeee ssssss wwwwww bbbbbb ddd E RRR RRR SUM RR SS CC CR ETX Scientific telegram 00014 See Appendix section 10 Table 7 List of predefined data telegrams Key V Wind speed s...

Страница 34: ...mand ET An error is outputted when the averaging buffer runs out of data 7 5 2 Behaviour of analogue outputs If the analogue outputs are active they are switched to the minimum or maximum value in cas...

Страница 35: ...mmands The Help text for the command is returned by inputting the command and If the following commands are input 00HH cr cr stands for Carriage return Enter key or 00 cr cr stands for Carriage return...

Страница 36: ...that if settings are changed the order number allocated at the factory can then no longer help with identification The WEATHER STATION can be configured via its serial data interface using commands S...

Страница 37: ...on Save Command DM id DM para5 Duplex mode Duplex Mode Command DO id DO para5 Selecting measured or calculated brightness direction as analogue value Command DT id DT para5 Date and time stamp Date an...

Страница 38: ...pressure for analogue output Access Configuration mode ADMIN Description This command is used to specify the analogue measuring range Call up e g 00ABxxyyy The first two parameters xx specify the low...

Страница 39: ...veraged velocity and scalar averaged direction Value range 0 1 Initial value 1 Command AO id AO para5 Switch the analogue outputs on off Analogue On Access Configuration mode ADMIN Description Command...

Страница 40: ...peed as follows 0 10V corresponds to 0 60m s It may however also be advisable to scale the wind speed of 0 30m s 0 10V correspond to 0 30m s The end of the measuring range is specified with this param...

Страница 41: ...ring values The wind measuring values are gliding averaged corresponding to WMO regulation acc to the FIFO method No gust is calculated for averaging times below 3s Parameter description Parameter for...

Страница 42: ...0400 baud 4608 460800 baud 9216 921600 baud Table 9 List of baud rates with telegram BR If the baud rate is changed the WEATHER STATION will return the value of the new baud rate selected in the baud...

Страница 43: ...1 or KY0 is executed Parameter 1 Save configuration Command DM id DM para5 Duplex mode Access Configuration mode ADMIN Description Duplex mode decides the type of physical connection of the serial dat...

Страница 44: ...Command RT to the output telegrams as well as the GPS position optional This information is always found at the end of the telegram before the check sum Examples of telegrams TR1 with DT0 000 1 338 2...

Страница 45: ...alogue output for wind direction is set to maximum 10V in this case 3 Analogue outputs The wind speed and all optional measured values are set to maximum 10V in case of error and the analogue output f...

Страница 46: ...t up message is outputted see chapter 6 1 main program starts afterwards 1 Messages switched off only command echo with e g 00TT00001 verbose mode off 2 No restart messages output silent boot mode 3 A...

Страница 47: ...n is equipped with a cover heating Parameter description 0 Heating always off 1 Heating switches on with air temperatures below 5 C 2 Heating permanently on with a heating power level of 50 This setti...

Страница 48: ...efore any change it is recommended using the command SS to output and then save the current configuration 4711 Configuration mode ADMIN ACCESS Parameters protected with this key are only available to...

Страница 49: ...dicates 45 too little In this case a north correction of 45 must be set North correction influences the wind directions output in the data telegrams as well as the analogue output values Parameter des...

Страница 50: ...umidity is added to the measuring values and then the value heat index temperature Parameter description 0 No additional values in the output telegram off 1 Output of the calculated absolute humidity...

Страница 51: ...ecipitation Events Access Configuration mode ADMIN Description Determines the number of precipitation events above threshold within the last minute above which precipitation is reported s command PT V...

Страница 52: ...h have to be acquired before precipitation is signaled see command PE Value range 10 60 s Initial value 60 Command RD id RD para5 Delayed response Response Delay Access Configuration mode ADMIN Descri...

Страница 53: ...SH para5 Station height to calculate the air pressure at standard elevation zero NHN Access Configuration mode ADMIN Description Input of the station height in meters above sea level for conversion o...

Страница 54: ...a list of the selected parameters e g by copying the parameters to a text file Parameter description No parameter is necessary when using the command SS Call up with the selected device ID 00 is as f...

Страница 55: ...e interface converter must be activated Parameter description B4711 Starts the bootloader for firmware update of the lower pc board Timeout for starting the upload 6min T4711 Starts the bootloader for...

Страница 56: ...tonomously transmits on a cyclic basis The same telegrams are available as described under Command TR The time interval in which telegrams are transmitted is specified with Command OR Autonomous trans...

Страница 57: ...Command DT 11 2 Telegram 2 VDTHP Wind speed Wind direction Temperature Relative humidity and Air pressure Command TR2 Command TT2 with DT 0 see also Command DT and OP 0 see also Command OP Telegram s...

Страница 58: ...aracter HEX 20 39 1 Asterisk identifier for following check sum 40 2 CC Check sum XOR CC 42 1 CR Carriage return HEX 0D CR 43 1 ETX End of Text character HEX 03 ETX Missing measuring values by partial...

Страница 59: ...ram 5 NMEA WIND NMEA V 2 0 Command TR5 Command TT5 Telegram structure Position Length Example Description 1 6 WIMWV NMEA identifier 7 1 Comma HEX 2C 8 5 DDD D Wind direction 13 1 Comma HEX 2C 14 1 R H...

Страница 60: ...FFFF 42 1 Blank character HEX 20 43 6 Brightness south lux FFFFFF 49 1 Blank character HEX 20 50 6 Brightness west lux FFFFFF 56 1 Blank character HEX 20 57 6 Brightness max value vectorial sum lux s...

Страница 61: ...rightness east lux 42 1 Blank character HEX 20 43 6 Brightness south lux 49 1 Blank character HEX 20 50 6 Brightness west lux 56 1 Blank character HEX 20 57 6 Brightness max value vectorial sum lux s...

Страница 62: ...s command OS FFF F 7 1 space HEX 20 8 5 Gust unit like wind velocity FFF F 13 1 space HEX 20 14 3 Wind direction FFF 17 1 space HEX 20 18 3 Wind direction of gust FFF 21 1 space HEX 20 22 5 Temperatur...

Страница 63: ...see Command OS 6 1 Semicolon HEX 3B 7 5 DDD D Wind direction 12 1 Semicolon HEX 3B 13 5 VT x Virtual temperature C 18 1 Semicolon HEX 3B 19 5 SNxxx Propagation time converter 3 towards converter 1 so...

Страница 64: ...Temperature in housing C 134 1 Semicolon HEX 3B 135 4 VC C Supply voltage V 139 1 Semicolon HEX 3B 140 7 LCxxxxx Internal counter ms 147 1 Asterisk identifier for following check sum 148 2 CC Check su...

Страница 65: ...order and number of the optional parameters can be determined randomly by command OP Telegram construction Length Example Description Meas value error s Telegram Last measuring value of set telegram...

Страница 66: ...ired wind measuring values Resolution 0 1K Air temperature 3 Measuring range 40 80 C Accuracy 0 3K 25 C 1 0K above 40 80 C Resolution 0 1K Long term stability 0 04K per year Air humidity relative 3 Me...

Страница 67: ...ution Data see Air Temperature Direction of magnetic compass optionally 6 Measuring range Accuracy Resolution 1 360 Typ 2 in magnetically undisturbed surroundings 0 1 Data output digital 7 Interface R...

Страница 68: ...0 00x Type of protection IP 67 when mounted correctly see section Preparation for operation Housing 4 92xx xx xxx Plastic LEXAN polycarbonate UV stabilised impact and weather resistant Mounting e g on...

Страница 69: ...69 70 71130 11E 0318 14 Dimension drawing...

Страница 70: ...l GmbH Roethensteig 11 D 90408 N rnberg Phone 49 911 37322 0 Fax 49 911 37322 111 E Mail Web info fuehlersysteme de www fuehlersysteme de nderungen vorbehalten Technical Support 49 1805 858511 14 ct m...

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