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User Manual - Networkdreams

1. Gill Instruments Ltd 7 2 Use a Terminal Program to View the MaxiMet Data String There are many terminal programs that might be used to view the MaxiMet data string examples include HyperTerminal Putty Tera Term etc If for example Tera Term is used Open Tera Term Select Serial Select MaxiMet connected Com port Click on Ok d Tera Term New connection TCPHIP 10 10 10 167 History Telnet lt oH sone Other UNSPEC Serial Port COM10 USB Serial Port COM10 OK Cancel Help Tera Term has opened at 9600 baud and MaxiMet uses 19200 as a default so change Tera Term Baud Rate setting to 19200 u COM10 9600baud Tera Term vr E File Edit Setup Control Window Help ftNTIERHTFTHHSi 7 k T Peli 4ToFLE OLEIQD IAS i 91 Legh IIG E HAT AO DOHI GF ORK AT It AS DIGS RY Te OM IODOI GE CHEN dk TY HIGS LIAS if Be k 7 ok A ON TDetLHyDL 0MMHIFOK L t 0 jgE el WEINI e i T ch ko IfOFLI SOLYTRD 5 T i T L e i ofl I a LH Li e fj MaxiMet Page 72 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Now select Setup from the top menu Click on Serial Port from the drop down menu Change Baud rate to 19200 Click on OK Port Baud rate Data Parity atop Flow control Transmit delay COM10 19200 8 bit Cancel none rot Hep none 0 msecfchar msecfline Data will be output as follows e Fi
2. MetSet Software Connect a MaxiMet to a PC COM port default communication is R8232 Open Gill MetSet Software Click on Connect and Read to reach the Editing Pages as shown below Configuration Click on the MODBUS Page Mode Choose between RTU and ASCII in this case RTU Address Choose a MaxiMet Address number between 1 to 247 Data Bits Choose 7 for Modbus ASCII and 8 for Modbus RTU Stop Bits Choose 1 for Even Odd Parity or 2 for No Parity None Parity Choose Even Odd or None Termination Char ASCII code Choose between 0 255 Inter Char Timeout ms Choose between 500ms to 10000ms Comms ASCII Setup Wind Temperature Pressure Humidity Mode kw el Address E Data bits is el SEI ae O Parity wow i e Q Termination Char ASCII code Ua ZA Inter char timeout ms i000 Q Made Pagese se Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Select the COMMS Page Protocol Default is Gill Select MODBUS Interface Default is RS232 Select RS232 or RS4852W RS232 will only allow a single point to point non multi drop network connection RS485 2 wire will allow networking with up to 32 connected devices Baud Rate Default is 19200 Select required Baud rate 9600 or 19200 supported Node ID Default is Q Not used for MODBUS Output Rate Default is 1Hz Set update rate for MaxiMet Data Message Mode Default is CONT Select POLL mode and MaxiMet will only make and output a measurement set by th
3. 36 MetSet Eding Ne E 40 MaxiMet Page 2 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 63 Pooled leie EE 49 6 4 Configuring MaxiMet for GIDL1 eeseeceeeseeeeeeeeeseeeaeeseesees 51 vo DB Fe a UE OF EE 51 gt BD Fa Ee un E ne EE 52 OIA Commands WHITING EE 54 6 5 Configuring MaxiMet for MOBI 56 MaxiMet Supported Modbus Specification ccccecceeceeceeseceeceecseseeeeeeseaeeaeeees 56 6 6 Configuring MaxiMet for NMEA Output 59 GMX200 NMEA Output Ging 59 GMX301 NMEA Output Ging 60 GMX500 NMEA Output Ging 61 GMX501 NMEA output Ging 62 GMX600 NMEA Output Ging 63 CO Ode Tel 66 SS CITA AY EE 66 Safe Mode Method WEE EE 66 el eet e EE EE EELER 66 Safe Mode Method EE EE 69 COMMS CHOI MEREEN ETE EE EE E EEEE EEEE EEE 69 rg VIEWING MAXIMET DATA STRING see ENK RR ER EREE RER EN RENE 71 7 1 Use MetSet to View the MaxiMet Data Ging 71 Opening Metzer 71 7 2 Usea Terminal Program to View the MaxiMet Data Ging 72 Setting up a logging EE 74 TO SIOP TOGO DEE 14 8 MAINTENANCE amp FAULT FINDING 0 0 ccececeeeeeneeeeseneeneeeeeenees 75 8 1 Cleaning and HANGING BEE 15 Ee e Te EE 15 Precipitation Sensor cccccceccsecceeceececeseceeeeeeseeceeseeeseeseeseeeeeegeeaeeseeseeseesseeseesaees 15 Solar Sensor e 75 Compass GPS modules ccccecceecceeceeceeeceeeeeeeeseeseeeseeseeeeeeeeseegeeseeseeeeeeneeseees 76 Wind Sensor VV ING SOIC BEE 76 Salt EE 16 UV Shield IM
4. Result e g 116 degrees CGSPEED Corrected Gust Speed GPS corrected Gust Speed Result e g 011 05 Metres second default CSPEED Corrected Speed Corrected Wind Speed shall not be computed when any one or more of GPS Speed GPS Heading and Compass Heading are unavailable Corrected Wind Speed shall be computed as the True Wind Speed i e using GPS Speed GPS Heading and Compass Heading when all of GPS Speed GPS Heading and Compass Heading are available When GPS speed and GPS heading are available and GPS speed transitions above 5 m s Corrected Wind Speed shall be computed as the True Wind Speed using GPS speed and GPS heading Result e g 003 17 Metres second default DEWPOINT Dewpoint Output calculated Dewpoint from Temperature and Humidity readings Td Tn Y 1 Where Td Dewpoint temperature Y m log10 PW A Tn Triple point temperature in K Pw Pws RH 100 hPa Pws water vapour saturation pressure hPa Result e g 45 1 GDIR Gust Direction Outputs WMO Gust Direction Maximum Gust Direction shall be computed over a block of m vector averages as follows rwa max gust dir arctan St v_avg where k index of gust mag selected for rg max gust mag defined above u avg k u vector average defined above v_avg k y vector average defined above Result e g 123 degrees MaxiMet Page 9 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd GPSHEADING GPS Enable
5. The measurement rate shall always be 1Hz i e regardless of the selected output rate The configured measurement string shall be output in response to a measurement request lt network node address gt from the user e g Q where Q is the default MaxiMet identifier range A Z When the user issues a poll measurement request the last computed set of 1 HZ measurement shall be output Response time to a poll shall be less than 570 milliseconds but note that parameters that require GPS may not be readily available until satellite fix has been achieved Power Saving Enabled MetSet System Power Mode 1 When a wake up command Q has been received by MaxiMet it will report back with lt ACTIVE gt Then subsequently if a user poll request e g Q is received it will make a measurement which will be output E g Send Q where Q is the default MaxiMet identifier range A Z Response seen is lt ACTIVE gt Send Q where Q is the default MaxiMet identifier Response for example is Q 329 000 01 340 1032 1 040 020 6 006 7 2015 06 09T09 24 19 9 05 1 0000 10 After this all sensors including GPS if available shall return to their inactive state until a further wake up command Q and Q is issued Notes Allow at least 10 seconds upon switching on a MaxiMet before issuing any poll commands If a poll request is sent immediately after a wake up command no measurements may be received for at least 5 secon
6. UNITS RH MODICT 1000 PRECIPITATION SENSOR ON PRECIPITATION UNITS MM MaxiMet Doc No 1957 PS 000x Issue 2 June 2015 Page 35 Gill Instruments Ltd 6 2 Configuring MaxiMet with MetSet Before you use MetSet check that MaxiMet is correctly connected to a Serial COM port or USB COM port on your PC The optional Gill1 8M RS232 to USB cable 1957 10 065 can be used to power and supply a suitable communication for configuring a MaxiMet unit NOTES MetSet is compatible with RS232 and RS422 connected units only The availability of certain functions and parameters illustrated will depend on the MaxiMet model and Options see Page 5 Para 2 1 2 Opening MetSet Click on the MetSet button on your PC s desktop or choose Start gt All Programs gt MetSet gt MetSet The MetSet Control Centre window is displayed If you have more than one MaxiMet connected to your PC MetSet by default selects the first device detected For most applications it is recommended to click on the MetSet Connect and Read button MT MetSet Configuration Software v2 02 01 Welcome Please select configuration mode Connect the MaxiMet output to MetSet and read its configuration settings Connect the MaxiMet output to MetSet without reading its configuration settings Disconnect MaxiMet and create MaxiMet device settings using MetSet Offline Figure 1 Configuration Mode Connect And Read b Connect Only
7. aMC aMC1 aM2C aM3C aMC4 aMCd AMCE6 aDO GMX600 Address Relative Wind Direction Relative Wind Speed Status and CRC Address Precipitation Intensity Total Precipitation Status and CRC Address Solar Radiation Sunshine Hours Status and CRC Address signed Latitude integer part signed Latitude fractional part signed Longitude integer part signed Longitude fractional part Height above mean sea level Status and CRC Address Year Month Day Hour Minute Second Status and CRC Request a line of the above data Description aMC Address Relative Wind Direction Relative Wind Speed Corrected Wind Direction Corrected Wind Speed GPS option unit only Status and CRC Retrieve a line of the above data aMC1 Address Temperature Relative Humidity Dewpoint Pressure Status and CRC Retrieve a line of the above data aMC2 Address Relative Wind Direction Relative Wind Speed Status and CRC Retrieve a line of the above data MaxiMet Doc No 1957 PS 000x Response atttnh lt CR gt lt LF gt a is unit identifier ttt is time in seconds n is number of data values Measurement command to retrieve a reading of the maximum time the MaxiMet will take to complete a measurement have data ready and the number of data values lt address gt lt relative wind direction gt lt relative wind speed gt lt corrected wind direction gt lt corrected wind speed gt lt stat
8. with an overall PVC sheath Typical wire size 7 0 2mm 24 AWG The following table shows an example manufacturers reference other manufacturers equivalents can be used Recommended Belden cable types gd Pairs Gill Ref Belden Ref Electronics Ref SDI 12 a o w gt Digital RS232 or RS485 2 wire 026 02660 9730 91030 Digital RS422 RS485 4 wire 026 03156 9728 91199 4 3 2 Cable length The maximum cable length is dependent on the chosen communication method The following table shows the maximum cable lengths for the supported communication protocols at the given baud rates using the recommended cable If any problems of data corruption etc are experienced then a slower baud rate should be used Alternatively a higher specification cable can be tried Suggested maximum cable lengths for supported communication networks Communication format Max cable length RS232 19200 6 5M RS422 RS485 19200 1000M MaxiMet Page 21 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 4 4 Connections Any cable wires not used should be isolated and grounded at the terminating equipment user end Digital OV should be used in conjunction with RS422 TX RX lines in order to improve noise immunity View of the MaxiMet connector 9 way connector and cable connections 9 Way Connector Signal Designation Number RS422 RS485 RXD 7 RS232 RXD RS422 RS485 RXD Comms Select Only Applicable if MaxiM
9. Direction Wind Speed 0 00m s to 5 00m s speed above which direction readings are output Short Term Average 60 10 60 Configures WMO Short Term Average as the defined multiple of the Output rate i e AVGSHORT 10 is a rolling average of the last ten outputs Long Term Average 10 1 10 Configures WMO Long Term Average as the defined multiple of the short Term Average i e if AVGSHORT is 10 then short term average is a rolling average of the last ten outputs Then if AVGLONG is set to 10 long term average is a rolling average of the last 100 outputs Compass Sensor ON or OFF With Compass Sensor ON Wind Direction readings corrected to magnetic north are output in the data string CDIR If set to OFF then the field with Compass corrected direction reading is left blank Compass Declination 000 0 Declination is the magnetic declination the angle between Magnetic North and True North in degrees This is a correction factor that is added to the magnetic north heading from the compass Map and declination figures in decimal figures can be obtained from http www geosats com magdecli html http www magnetic declination com http www ngqdc noaa gov qeomag declination shtml GPS Sensor ON OFF GPS sensor output GPS Speed Units MS KTS MPH KPH FPM MaxiMet Page 41 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd WMO Average Wind Reading Notes The default output rate from MaxiMet is one new reading eve
10. ISA For the Troposphere this is assumed to be 0 0065 Kelvin metre h height meters sensor s height above or below sea level i e Height Above Sea Level plus Height Above Station R universal gas constant for air 8 31432 Nem moleK OU gravitational acceleration 9 80665 m s2 M molar mass of Earth s air 0 0289644 kg mol PSTN Outputs Barometric Pressure at Station if HASL figure set see page 43 Pressure at station shall be computed as P Pb Tb Tb Lb h gO M R Lb where P adjusted pressure Pb pressure pascals as measured by the pressure sensor Tb temperature K Lb standard temperature lapse rate K m in ISA For the Troposphere this is assumed to be 0 0065 Kelvin metre h height meters Height Above Station i e the difference between the sensor height above or below local ground level R universal gas constant for air 8 31432 Nem moleK OU gravitational acceleration 9 80665 m s2 M molar mass of Earth s air 0 0289644 kg mol AH Outputs Absolute Humidity Absolute humidity shall be computed as H C Pw T where H absolute humidity C Constant 2 16679 gK J Pw Vapour pressure in Pa T Temperature in K MaxiMet Page 46 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd AVGSPEED Outputs WMO average speed reading based on AVG short and AVG long settings AVGDIR Outputs WMO average direction read
11. MetSet is Work Offline Configuration Software i app Le CH d F ON 1 Not Used Settings i C Pao A MetSet supported products list Opening MetSet Screen MetSet interrogates the MaxiMet and returns a summary of the device settings Depending on the MaxiMet Sensor connected only settings and parameters appropriate to the connected MaxiMet unit will be shown Note that MetSet also saves a copy of this screen to the connected PC as a Session Report File that can be accessed from the following destination C Program Files X86 Gill Instruments MetSet SessionReports MaxiMet Page 36 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Example Summary of MaxiMet Device Settings GMX600 shown SETTINGS ARE AS FOLLOWS PROTOCOL GILL COMMS RS232 BAUD 19200 NODE Q OUTFREQ 1HZ MSGMODE CONT ASCTERM CRLF ECHO ON ALIGN 0 SENSOR WIND ON UNITS WIND MS NODIR 0 00 AVGSHORT 60 AVGLONG 10 SENSOR COMPASS ON SENSOR TEMP ON UNITS TEMP C SENSOR DEWPOINT ON UNITS DEWPOINT C SENSOR PRESS ON UNITS PRESS HPA HASL 00000 00 HASTN 00000 00 SENSOR RH ON UNITS RH SENSOR PRECIP ON UNITS PRECIP MM ARPRECIP ON REPORT NODE DIR SPEED CDIR PRESS RH TEMP DEWPOINT PRECIPT PRECIPI TIME VOLT STATUS POWER 0 TIME 2015 03 23T 13 36 09 PUPMSG STATUS ON PUPMSG REPORT ON PUPMSG UNITS ON MODBUS RTU MODADDR 1 DATABITS
12. Optional GPS Heading GPS Speed GPS Status MaxiMet Page 5 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Wind Speed and Direction Sensor GMX200 GMX500 GMX501 and GMX600 The MaxiMet uses the Gill WindSonic wind speed and direction sensor The WindSonic measures the times taken for an ultrasonic pulse of sound to travel from the North N transducer to the south S transducer and compares it with the time for a pulse to travel from S to N transducer Likewise times are compared between West W and East E and E and W transducer If for example a North wind is blowing then the time taken for the pulse to travel from N to S will be faster than from S to N whereas the W to E and E to W times will be the same The wind speed and direction can then be calculated from the differences in the times of flight on each axis This calculation is independent of factors such as temperature E North Alignment Pointers O j Compass points The compass point and polarity of U and V if the wind components along the U and V axis are blowing in the direction of the respective arrows MaxiMet can output the following wind readings depending on use of a Compass or GPS Relative wind wind speed and or direction uncorrected but relative to the north marker which may not be facing North Corrected wind with the aid of the Compass Magnetic North corrected wind direction can be output True wind w
13. Retrieve a line of the above data Address Year Month Day Hour Minute Second Status Retrieve a line of the above data Address signed latitude integer part signed latitude fractional part signed longitude integer part signed longitude MaxiMet Doc No 1957 PS 000x lt atttn lt CR gt lt LF gt lt address gt lt signed latitude integer part gt lt signed latitude fractional part gt lt signed longitude integer part gt lt signed longitude fractional part gt lt height above mean sea level gt lt status gt lt CR gt lt LF gt lt atttn lt CR gt lt LF gt lt address gt lt Year gt lt Month gt lt Day gt lt Hour gt lt Minute gt lt Second gt lt status gt C R gt lt LF gt Page 53 00026 lt CR gt lt LF gt 0 50 763052 001 539920 00000 90 0000 lt CR gt lt LF gt 00017 lt CR gt lt LF gt 0 2015 06 15 14 07 52 0000 lt CR gt lt LF gt Issue 2 June 2015 Gill Instruments Ltd SDI 12 Commands with CRC Note Unavailable measurements shall be padded e g 999 99 Returns Unit Address default is 0 Current unit address letter factory default is 0 range is O to 9 New address letter range 0 to 9 Change unit address from a to b see above Address Relative Wind Direction Relative Wind Speed Corrected Wind Direction Corrected Wind Speed If GPS fitted Status and CRC Address Temperature Relative Humidity Dewpoint Pressure Status and CRC D a b aAb
14. V1 02 01 onwards Outputs Precipitation Rain Total reading this is a one second updated accumulated rain reading output once per minute Is set to zero on MaxiMet power up Is set to zero when the clock reads 23 59 59 to 00 midnight and is the default setting For continuous measurement turn off Auto reset of Total Precipitation using MetSet Result e g 00000 4 millimetres default MaxiMet Page 11 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd PSTN Pressure at Station Outputs Barometric Pressure at Station if HASL figure set see page 43 Pressure at station shall be computed as P Pb Tb Tb Lb h gO M R Ubu where P adjusted pressure Pb pressure pascals as measured by the pressure sensor Tb temperature K Lb standard temperature lapse rate K m in ISA For the Troposphere this is assumed to be 0 0065 Kelvin metre h height meters Height Above Station i e the difference between the sensor height above or below local ground level R universal gas constant for air 8 31432 Nem moleK gO gravitational acceleration 9 80665 m s2 M molar mass of Earth s air 0 0289644 kg mol Result e g 1001 2 hecto pascals default SOLARHOURS Sunshine Hours Sunshine hours are computed as the period of time in hours within a 24 hour calendar day i e accumulated during the present day that the measured irradiance exceeds 120 Wim Sunshine hours
15. WMO Average Wind Speed reading based on AVG short and AVG long settings see page 42 Result e g 001 45 Metres second default AVGCSPEED Average Corrected Speed Outputs the World Meteorological Organisation WMO Average Wind Speed reading based on AVG short and AVG long settings see page 42 Result e g 001 45 Metres second default AVGDIR Average Direction Outputs WMO Average Direction Wind reading based on AVG short and AVG long settings see page 42 Result e g 145 degrees AVGCDIR Average Corrected Direction Outputs WMO average Compass Corrected Direction wind reading based on AVG short and AVG long settings see page 42 Result e g 131 degrees MaxiMet Page 8 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd CDIR Corrected Direction Corrected Wind Direction shall not be computed when Compass Heading is unavailable Corrected Wind Direction shall be computed as the Apparent Wind Direction i e using Compass Heading when Compass Heading is available but any one or more of GPS Speed and GPS Heading are unavailable Corrected Wind Direction shall be computed as the True Wind Direction i e using GPS Speed GPS Heading and Compass Heading when all three of GPS Speed GPS Heading and Compass Heading are available When GPS speed is available and speed transitions below 4 m s Corrected Wind Direction shall be computed as the True Wind Direction using GPS speed and compass heading
16. ddmm mmmm East West indicator Position Fix Indicator See below Satellites being used Range 0 12 Horizontal Dilution of Precision Mean Sea Level NSL Altitude in Metres Page 61 Issue 2 June 2015 Gill Instruments Ltd M MSL Units Metres ou as Geoid Separation and Units in Metres 0000 Differential GPS Reference Station ID 18 Checksum lt CR gt is a Carriage return character ASCII hex value d lt LF gt is a Line Feed Character ASCII hex value a Checksum the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes between and not including the and characters Example GMX500 NMEA Data String SWIMWV 069 R 004 06 N A 00 SWIMWV 122 T N A 14 WIXDR C 023 2 C TEMP P 1 0281 B PRESS H 037 P RH 0A Repeated every second 1Hz output GMX501 NMEA output String SWIMWV 049 R 000 03 N A 03 lt CR gt lt LF gt Where SWIMWV Wind Instrument Mean Wind direction and Velocity 049 Wind Direction R Relative Wind measurement wind speed and or direction information reported with respect to the MaxiMet North marker 000 03 Wind Speed N Knots NMEA output fixed to Knots measurement only A Acceptable measurement V is a void fail measurement O3 Hex Check Sum Immediately followed by SWIMWV 185 T 000 19 N A OF lt CR gt lt LF gt SWIMWV Wind Instrument Mean Wind direction and Velocity 185 Wind Direction T True Wind measurement wind speed and or direction in
17. lt LF gt atttn lt CR gt lt LF gt lt address gt lt temperature gt lt relative humidity gt lt dewpoint gt lt pressure gt lt status gt CR gt lt LF Page 52 013Gilllnst 00014490002 lt CR gt lt LF gt 00035 lt CR gt lt LF gt O is unit identifier 003 is 3 sec Measurement 5 is the number of data readings Direction Speed Corrected Direction and Corrected Speed 0 220 000 01 218 999 99 0000 lt CR gt lt LF gt 00025 lt CR gt lt LF gt 0 024 3 036 008 4 1024 9 0000 lt CR gt lt LF gt Issue 2 June 2015 Gill Instruments Ltd Address Relative Wind Direction Relative Wind Speed and Status Retrieve a line of the above data Address Precipitation Intensity Total precipitation Status Retrieve a line of the above data Address Solar Radiation Sunshine Hours Status atttn lt CR gt lt LF gt a lt dir gt lt mag gt lt status gt lt CR gt lt LF gt atttn lt CR gt lt LF gt lt address gt lt precipitation intensity gt lt total precipitation gt lt status gt CR gt lt LF lt atttn lt CR gt lt LF gt 00033 lt CR gt lt LF gt 0 029 000 01 0000 lt CR gt lt LF gt 00033 lt CR gt lt LF gt 0 002 1 123 1 0000 lt CR gt lt LF gt 00023 lt CR gt lt LF gt Retrieve a line of the address gt lt solar radiation gt lt sunshine 0 0001 00 00 0000 lt CR gt lt LF gt above data hours gt lt status fractional part height above mean sea level status
18. measurement The Solar Page can be used to select Comms ASCII Setup Wind Temperature Pressure Humidity 4 Solar Solar Sensor Solar Sensor ON or OFF MaxiMet Page 44 Doc No 1957 PS 000x Issue 2 June 2015 Gill Instruments Ltd The Reporting Page can be used to select Comms ASCIT Setup Report Format Temperature Pressure Humidity Precipitation Reporting USERDEF sl Report Format USERDEF DEFAULT FULL or NMEA NODE POLAR CDIR PRESS RH TEMP DEWPOINT PRECIPT PRECIPI TIME VOLT STATUS Select Parameters to Report Poar com press RH Jm Dewpom pRecipT Preci Jme Jor staTus UT Select Parameters to Report actual parameters shown will depend on the MaxiMet Model DEFAULT FULL NMEA USERDEF NODE DIR SPEED CDIR PRESS RH TEMP DEWPOINT PRECIPT PRECIPI SOLARRAD GPSLOCATION TIME VOLT STATUS Sets the unit to report the factory set output parameters Sets the unit to output every available sensor and derived parameter output Sets the unit to output an NMEA data string Report parameters can be selected in any order or on or off in USERDEF setting Output Node letter Outputs wind direction readings Outputs wind speed readings Outputs Compass corrected wind direction readings Outputs the Barometric Pressure reading Outputs Relative Humidity reading Outputs the Temperature reading Outputs the Dewpoint reading Outputs Precipita
19. number Scan complete Status Manual setup Safe Mode SAFE MODE STEP 1 Enter the COM port number then press Next My Device ison COM 10 Ensure power is now disconnected from the MaxiMet If using the Gill Instrument RS232 to USB configuration cable then unplug the 9 way connector from the base of the MaxiMet Now click on Next Scan complete Status Manual setup Safe Mode SAFE MODE STEP 2 Switch power to device OFF then press Next MaxiMet Page 67 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Now re connect power to the MaxiMet If using the Gill Instrument RS232 to USB configuration cable then plug in the 9 way connector to the base of the MaxiMet Scan complete Status Manual setup Safe Mode SAFE MODE STEP 3 Switch power to device ON wm Metzer now opens a Safe Mode 4800 baud connection from which all settings can now be read and changed Editing device settings online 1 i Comms ASCII_Setup Wind Temperature Pressure Humidity Precipitation Reporting System PowerUp MODBUS Get Device Settings Protocol Interface Save Settings Load Configuration File Baud Rate Node ID Save Configuration File figur Output rate Message Mode ae 11 1 Measurement Mode View Output Source Device S N 00000000 MAXIMET GMX600 1B 4800 COM10 S W ver 2669 1 00 00 Protocol ver i MaxiMet Page 68 I
20. shall be displayed with 2 integral digits and 2 decimal places Result e g 00 00 hours SOLARRAD Solar Radiation figure Measure solar radiation over the range 0 1600 in watts per metre squared Result e g 0243 STATUS Status of MaxiMet Sensors Outputs the MaxiMet Sensors Status Code Result e g 0000 see page 77 TIME MaxiMet Date and Time can be updated by GPS Option Time can be set manually by the user or updated by the GPS Module if fitted GPS time can be automatically updated every hour GPS default setting By default time will be UTC Result e g 2015 06 04T 10 01 36 8 VOLTS Supply Voltage DC Supply voltage measured at the MaxiMet Result e g 10 5 WINDSTAT Status of Wind Sensor in detail Outputs Status codes relating to Wind Sensor Data Result e g 0000 see page 78 MaxiMet Page 12 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 2 2 GMX Sensor Default ASCII Output Summary Default Data String GMX200 Non GPS Option Node Relative Wind Direction Relative Wind Speed Corrected Wind Direction Date and Time Supply Voltage Status Checksum 1 Q 127 000 03 000 2000 01 01T00 40 50 2 10 5 0000 21 GPS Option Node Relative Wind Direction Relative Wind Speed Corrected Wind Direction Corrected Wind Speed GPS location Date and Time Supply Voltage Status Checksum 7 Q 310 000 04 033 000 59 50 762988 01 539893 0 80 2000 01 01T00 40 50 2 10 5 0000 21 Default Data Str
21. to the MaxiMet specification at all times Wind Avoid turbulence caused by surrounding structures that will affect the accuracy of the MaxiMet such as trees masts and buildings The World Meteorological Organisation makes the following recommendation The standard exposure of wind instruments over level open terrain is 10m above the ground Open terrain is defined as an area where the distance between the sensor and any obstruction is at least 10 times the height of the obstruction If mounting on a building then theoretically the sensor should be mounted at a height of 1 5 times the height of the building If the sensor is to be mounted on a mast boom part way up a tower or mast then the boom should be at least twice as long as the minimum diameter or diagonal of the tower The boom should be positioned on the prevailing wind side of the tower It is important to ensure that the MaxiMet is mounted in a position clear of any structure which may obstruct the airflow or induce turbulence Mount MaxiMet so as to have a clear view of prevailing winds MaxiMet Page 26 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Compass MaxiMet should be mounted horizontally and as level as possible It is not possible to calibrate for changing magnetic anomalies Thus for greatest accuracy keep the MaxiMet away from sources of local magnetic distortion that will change with time such as electrical equipment that will be turned o
22. 001 50 762988 01 539893 0 80 2015 06 09T09 24 34 9 05 1 0004 3D MaxiMet Page 13 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Default Data String GMX600 Non GPS Node Relative Wind Direction Relative Wind Speed Corrected Wind Direction Pressure Relative Humidity Temperature Dewpoint Total Precipitation Precipitation Intensity Date and Time Supply Voltage Status Checksum 7 Q 344 000 05 096 1018 5 037 023 0 007 8 00000 0 000 0 2014 05 24T06 21 01 0 10 3 0002 t 3C GPS Node Relative Wind Direction Relative Wind Speed Corrected Wind Direction Corrected Wind Speed Pressure Relative Humidity Temperature Dewpoint Total Precipitation Precipitation Intensity GPS Location Date and Time Supply Voltage Status Checksum 7 Q 344 000 05 096 000 59 1018 5 037 023 0 007 8 00000 0 000 0 50 762988 01 539893 0 80 2014 05 24T06 21 01 0 10 3 0002 3C MaxiMet Page 14 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 3 TECHNICAL SPECIFICATION Wind Measurement Polar Wind Speed amp Direction Units of Measurement m s knots mph kph ft min 3 0 01m s to 40m s 5 above 40 and up to 60m s Accuracy 3 0 01m s to 40m s 5 above 40 and up to 60m s Air Temperature C or F or K 0 100 2 20 C 10 to 90 Relative Humidity 40 C to 70 C 0 30 25 C Units of Measure Range Accuracy Resolution Units of Measure MaxiMet Pag
23. 109 Operating Temperature 40 C to 70 C Storage Temperature 40 C to 80 C Humidity 0 100 External Construction Polycarbonate Fittings Bolt fittings supplied for securing the unit to a vertical pipe of diameter 44 45mm Overall Dimensions GMX200 169 5 mm x 142mm x 142mm GMX301 198 mm x 142mm x 142mm GMX500 222 mm x 142mm x 142mm GMX501 264 mm x 142mm x 142mm GMX600 261mm x 142mm x 142mm Weight GMX200 GMX301 GMX500 GMX501 GMX600 MetSet Configuration Free Software providing the means of configuration of the MaxiMet MaxiMet Page 17 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 4 PRE INSTALLATION 4 1 Equipment supplied MaxiMet and Installation kit 1405 PK 069 comprising of a 9 way connector kit and 3 off M5 bolts and washers to bolt the unit to a mounting pole and MaxiMet User Manual and MetSet Software on a CD in the MaxiMet box this manual and Product Test Report Optional Extras Cable 3 Pair twisted and Shielded wires 24awg per metre 026 02660 Cable 4 Pair twisted and Shielded wires 24awg per metre 026 03156 Cable 15 metres 4 pair twisted and shielded 24 awg connector pins attached 4405 10 080 to one end and stripped wires the other 9 way connector and 3 mounting bolts 1 supplied with the unit 1405 PK 069 0 5 Metre x 50mm Aluminium Support Tube tapped for MaxiMet Mounting bolts 1405 30 056 50cm Lanyard 026 05335 MaxiMet 1 8 Metre RS232 to USB c
24. 45mm Outside Diameter x 3mm wall thickness is recommended see figures on the next pages Note it is important that the correct diameter tube is used to prevent damage to the MaxiMet lower moulding when tightening the screws The support tube requires three 3 equally spaced holes tapped M5 7 5mm from the top of the tube Pass the cable fitted with the 9 way Clipper plug through the tube Note the customer must fit appropriate strain relief to the cable Connect the plug by twisting it whilst pushing it gently into the socket on the MaxiMet When it locates twist the outer sleeve clockwise to connect and lock the plug Fix the MaxiMet to the tube using the 3 stainless steel screws provided Maximum mounting screw torque 4 Nm For hostile environments you should select a material suitable for the intended environment For example stainless steel 316 for marine use For non hostile environments an Aluminium tube can be used NOTE An optional 0 5 Metre Aluminium mounting tube is available from Gill Instruments Part 1405 30 056 This tube is predrilled and tapped with 3 holes to match with those on the base of the MaxiMet unit 3 mating screws and washers supplied with the MaxiMet mounting kit MaxiMet Page 28 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Dimensions in mm 198 169 45 North Alignment Pointers Support tube 1 75 inch 44 45mm outer North Alignment Notch a diameter 3mm w
25. 475 N 12158 3416 W 1 07 1 0 9 0 M 0000 18 lt CR gt lt LF gt Where GPGGA NMEA GPS Protocol Header 161229 487 UTC Time hhmmss sss 3723 2475 Latitude ddmm mmmm N North South Indicator 12158 3416 Longitude ddmm mmmm W East West indicator 1 Position Fix Indicator See below 07 Satellites being used Range 0 12 1 0 Horizontal Dilution of Precision 9 0 Mean Sea Level NSL Altitude in Metres M MSL Units Metres E Geoid Separation and Units in Metres 0000 Differential GPS Reference Station ID 18 Checksum Doc No 1957 PS 000x Issue 2 June 2015 Page 59 Gill Instruments Ltd Position Fix Indicator Value Description Fix not available or invalid GPS SPS Mode fix valid Differential GPS SPS Mode fix valid 5 Not supported Dead Reckoning Mode fix valid OUNO Example GMX200 NMEA Data String SWIMWV 069 R 004 06 N A 00 SWIMWV 122 T N A 14 GPGGA 161229 487 3723 2475 N 12158 3416 W 1 07 1 0 9 0 M 0000 18 GPS only Followed 1 second later by SWIMWV 075 R 003 02 N A 00 SWIMWV 132 T N A 16 GPGGA 161229 487 3723 2475 N 12158 3416 W 1 07 1 0 9 0 M 0000 18 GPS only Etc Etc 1Hz output GMX301 NMEA Output String WIXDR C 023 9 C TEMP P 1 0243 B PRESS H 039 P RH Z 0000 W SOLAR 01 lt CR gt lt LF gt Where WIXDR Wind Instrument Cross track error Dead Reckoning C Type of Sensor Temperature 023 9 Temperature Reading C Temperature Reading in Degrees Centigrade
26. 75613 000 5045 7954 N 00132 3938 W 1 07 1 2 21 5 M 47 8 M 0000 7B Etc MaxiMet Page 65 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 6 7 Safe Mode Summary The MaxiMet Safe Mode provides a means of recovering communication with the MaxiMet whatever configuration setting may have been made For instance if the unit has been set for SDI 12 operation Safe Mode can be used to change the communication option back to RS232 or RS422 Safe Mode Method 1 Connection Connect the MaxiMet for RS232 communication as detailed in Para 4 6 Open Gill MetSet Software see Para 6 2 Click on Connect and Read MetSet will scan COM port settings for a connected MaxiMet but as the COMMS protocol is not matched will be unable initially to find the MaxiMet Now Click on the Safe Mode button Scan complete Status Manual setup Safe Mode COM 1 No device found Please check all power and communication wiring COM2 No device found Please check all power and communication wiring COM 10 No device found Please check all power and communication wiring Scan complete Status Manual setup Safe Mode SAFE MODE connection Safe Mode can be used to attempt connection if a device is not responding Ensure the device is wired for RS232 communications and press NEXT Next MaxiMet Page 66 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Enter the MaxiMet COM Port connection
27. 8 STOPBITS 1 PARITY NONE MODTERM 10 MODICT 1000 Note changes to BAUD and COMMS settings will take place after next power up Click on the Close button to continue to the MetSet set up screen MaxiMet Page 37 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd MetSet Editing Screen When connected correctly a MetSet editing screen is available to read configuration settings change configuration settings save MaxiMet configuration settings to a PC file location upload MaxiMet configuration settings from a PC file and view the MaxiMet raw data string output MetSet Editing Screen MTI MetSet Configuration Software v2 08 0 Editing device settings online Online Mode Comms ASCII_Setup Wind Temperature Pressure Humidity Precipitation Reporting System PowerUp MODBUS Save Settings To Device Power Mode i ates i Q MaxiMet i eee Move mouse over exclamation Device Setting tend ontaentonde or question marks to read Options eesgegssrapg setting comment Backup Device Settings Restore Device Settings Vi CW M axi M et Measurement Mode Raw Data Output String Return to opening MetSet Screen Source Device S N 15130002 MAXIMET GMX600 1B 19200 COM10 S W ver 2669 1 02 00 Protocol ver 1 source of MetSet Data Model Number Serial Number Connection e MetSet Connection Status Information Reading Function lt o ONLINE ON
28. ARTUP OK RCON 0120 WDT enabled Voltage reg active during Sleep CRC 6BB8 Report Message Output ON or OFF E g NODE DIR SPEED CDIR PRESS RH TEMP DEWPOINT PRECIPT PRECIPI TIME VOLT STATUS CHECK Units Message Output ON or OFF E g DEG MS DEG HPA C C MM MM H V lt END OF STARTUP MESSAGE gt The MODBUS Page can be used to select Comms ASCI Setup Wind Temperature Pressure Humidity Preapitaton Reporting System PowerUp MODBUS Mode Q Address 1 7 Data bits a Ta Stop bits Uu vi Parity NONE sl Termination Char ASCII code mo Inter char timeout ms 1000 Q Mode RTU or ASCII Address 1 to 247 Data Bits 8 for Modbus RTU 7 for Modbus ASCII Stop Bits 2 for No Parity 1 for Even Odd Parity Parity NONE ODD or EVEN Termination Char ASCII code 10 0 255 Inter Char Timeout mS 1000 500 to 10000 MaxiMet Page48 0 se Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 6 3 Polled Mode To configure a MaxiMet unit for polled mode Connect a default set MaxiMet to a PC as described in Para 4 6 Open MetSet as described on Para 6 2 Click on the Edit Comms page and select Set Protocol for required poll mode interface e g RS485 and set Message Mode to Poll Click on Save Settings to Device on the Online Mode Menu Shut down the MaxiMet unit Change the hardware connections for the required Poll Mode Interface Power Saving Mode Disabled MetSet System Power Mode 0
29. E INSTALLATION ccccccceeceeeeeneeeeeeeseneeeesenseneeaesonseneseneaneseesonees 18 4 1 Equipment supplied cece ccc scceeceeceeeeceeceeceeceeeeeceesecececacaeesesseseeseeaeeseeaes 18 AON Rut 18 4 2 Connector and Cable Assemilv 18 e GE a In Le EE 21 4 3 1 Eeer E E EE 21 432 Cable lengt EE 21 AA CGonnechons ce ER View of the MaxiMet connector eee eeeeeseeceececeeeceeeeeeeeeseeseeseeeeeeaes 22 4 5 OW CR SU NSS EE 22 VIAXIVICT Ate eege eege SE ER 4 6 Connecting to a PC using RS232 Default seng 23 4 7 Connecting to a PC using RS422 Not a Default Gettng eee 23 4 8 Using RS485 2 wire point to point only not a default setting 0 8 24 4 9 Using SDI 12 2 wire network not a default settmg 24 4 102 SETUP PEQUIFGIMGINS sessie a E aAa 25 POS Ux SUSI E 25 ROT E T E E E EOE A E 25 BENG Sy SUC LO EE 25 4 11 lt Le ln Le E 25 5 NS TALCA HON ME 26 5 1 General Installation Guidelines ccc cccc eee ceeceeeeeeseeeeeeeeeeseeeeeseeseeeneesaes 26 Ire 26 VV WNC TEE 26 eil 27 PS EE 27 E eee eee EA E nee O A E T OO E A 27 General et un EE 2 7 Dimensions CIN MIN cvoesecucessorrcearnesuncteurdeeynareneeeneneiacdunndiedtiaindesunnssennerseptmaicanies 29 6 CONFIGURING WITH METSE LT ccccccceeeseeeeeeeeeeneceeseneeneeeeseneees 31 6 1 MaxiMet Default Configurations 0nn0nnannannnnannannnnnnnnnnnnnnnnnnrnnrnnrerrnrsrrereene 31 6 2 Configuring MaxiMet with Metzer
30. East West indicator 1 Position Fix Indicator See below 07 Satellites being used Range 0 12 1 0 Horizontal Dilution of Precision 9 0 Mean Sea Level NSL Altitude in Metres M MSL Units Metres ae Geoid Separation and Units in Metres 0000 Differential GPS Reference Station ID 18 Checksum Position Fix Indicator Value Description A Fix not available or invalid 1 GPS SPS Mode fix valid 2 Differential GPS SPS Mode fix valid 3 5 Not supported 6 Dead Reckoning Mode fix valid MaxiMet Page 64 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd lt CR gt is a Carriage return character ASCII hex value d lt LF gt is a Line Feed Character ASCII hex value a Checksum the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes between and not including the and characters Example GMX 600 Data SWIMWV 069 R 004 06 N A 00 SWIMWV 122 T N A 14 WIXDR C 023 2 C TEMP P 1 0281 B PRESS H 037 P RH Y 000 0 M PRECIP 0A GPGGA 075613 000 5045 7954 N 00132 3938 W 1 07 1 2 21 5 M 47 8 M 0000 7B Followed 1 second later by SWIMWV 238 R 000 46 N A 06 SWIMWV 303 T N A 15 WIXDR C 023 2 C TEMP P 1 0281 B PRESS H 037 P RH Y 000 0 M PRECIP 0A GPGGA 075613 000 5045 7954 N 00132 3938 W 1 07 1 2 21 5 M 47 8 M 0000 7B Followed 1 second later by SWIMWV 130 R 000 21 N A 0C SWIMWV 205 T N A 12 WIXDR C 023 2 C TEMP P 1 0281 B PRESS H 038 P RH Y 000 0 M PRECIP 05 GPGGA 0
31. ICTS DEC EE 76 Temperature Humidity and Dewpomt ccc ceceeceeceeeeeeeeeeeeeseeeeeeaeeeeeeeeees 76 E al AON E 76 Returning the MaxiMet cccccccscceccssceeeeeceecseeseeeceeseesseeeeesseeeceeseeseeseeesensans 16 ofS GE Oe Te ln EE TT 64 OME ee 78 09 9 Bench E GE 78 00 EE aile e WINS EE 78 G 2 NG EE 78 9 GAEREN Eegen 19 9 1 Glossary amp ADDreviatiONs ccccccccccccecceceeeeseeseeeseeseeeseeeseeceeesaesaesaeeseeeaeesaes 19 9 2 Electrical COMMONLY espiren enre E ENNE e UENEN EES 80 MaxiMet Page 3 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 1 FOREWORD Thank you for purchasing the MaxiMet manufactured by Gill Instruments Ltd To achieve optimum performance we recommend that you read the whole of this manual before proceeding with use Gill products are in continuous development and therefore specifications may be subject to change and design improvements without prior notice The information contained in this manual remains the property of Gill Instruments and should not be copied or reproduced for commercial gain 2 INTRODUCTION The Gill MaxiMet sensor units are very robust with no moving parts The sensor units output rate and formats are all user selectable The MaxiMet can be used in conjunction with a PC data logger or other device The MaxiMet combines all the instrument data into a single data string This may be configured for digital ASCII RS232 RS422 RS485 2 wire point t
32. If required return the MaxiMet to Gill Instruments to check the Compass and GPS operation Wind Sensor WindSonic If there is any build up of deposits on the unit it should be gently cleaned with a cloth moistened with soft detergent Solvents should not be used and care should be taken to avoid scratching any surfaces The unit must be allowed to defrost naturally after being exposed to snow or icy of conditions do NOT attempt to remove ice or snow with a tool There are no moving parts or user serviceable parts requiring routine EEE maintenance Opening the unit or breaking the security seal will void the warranty and the calibration Barometer The Barometer device is located internally and is not maintainable or replaceable by a user If required return the MaxiMet to Gill Instruments to check the Barometer calibration UV Shield MetSpec Ideally the user should try to keep MaxiMet radiation screens clean and free of biological growth but a simple wipe with some non aggressive E p soft detergent cleaner will suffice Solvents should not be used and care should be taken to avoid scratching any surfaces The unit must be allowed to defrost naturally after being exposed to snow or icy M conditions do NOT attempt to remove ice or snow with a tool Temperature Humidity and Dewpoint The internal temperature and humidity sensor is not user maintainable or replaceable If used in areas of high poll
33. LINE in green indicates the MaxiMet has been successfully connected to MetSet OFFLINE in Grey indicates that MetSet is being used without a MaxiMet in communication with MetSet 19200 COM10 19200 is a report on the MaxiMet Baud rate setting COM 10 is a report on the MaxiMet COM Port connection number S W ver 2669 1 02 00 2669 is the MaxiMet Firmware number 1 02 00 is the firmware revision PV 1 is the Protocol Version Gill Internal Reference Source Device MetSet reads Device when the source of the data that MetSet has retrieved has come from the MaxiMet and the MaxiMet Model MetSet reads File when the source of data has come from a saved file MetSet reports on the connected MaxiMet device MAXIMET GMxX600 1B and reads the unit Serial Number S N 15130002 e MetSet Online Settings MaxiMet Page 38 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Online Mode Online Mode Buttons Get ONIE MetSet retrieves the MaxiMet Configuration settings Settings Get Device Settings Save Settings To Device Load Configuration File Save Configuration File Backup Device Settings Restore Device Settings Measurement Mode view Cutput x Main Menu MaxiMet Save Settings to Device Load Configuration File Save Configuration File Back Up Device Settings Restore Device Settings Measurement Mode View Output MetSet configuration settings are saved to a connected
34. Latitude ddmm mmmm North South Indicator Longitude ddmm mmmm East West indicator Position Fix Indicator See below Satellites being used Range 0 12 Horizontal Dilution of Precision Mean Sea Level NSL Altitude in Metres MSL Units Metres Geoid Separation in Metres Geoid Units Metres No reading Differential GPS Reference Station ID Checksum lt CR gt is a Carriage return character ASCII hex value d lt LF gt is a Line Feed Character ASCII hex value a Checksum the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes between and not including the and characters Example GMX501 Data SWIMWV 069 R 004 06 N A 00 SWIMWV 122 T N A 14 WIXDR C 023 2 C TEMP P 1 0281 B PRESS H 037 P RH Z 0000 W SOLAR 0A Repeated every second 1Hz output GMX600 NMEA Output String SWIMWV 049 R 000 03 N A 03 lt CR gt lt LF gt Where SWIMWV Wind Instrument Mean Wind direction and Velocity 049 Wind Direction R Relative Wind measurement wind speed and or direction information reported with respect to the MaxiMet North marker 000 03 Wind Speed N Knots NMEA output fixed to Knots measurement only A Acceptable measurement V is a void fail measurement O3 Hex Check Sum Immediately followed by MaxiMet Page 63 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd WIMWV 049 T N A 18 lt CR gt lt LF gt SWIMWV Wind Instrument Mean Wind direction and Veloc
35. MaxiMet When selected MetSet retrieves a MetSet edit PC file and updates MetSet with these settings When selected MetSet edit settings are saved to a PC file location When selected the MaxiMet configuration settings are transferred to MetSet and then to a file location selected on a PC When selected MetSet retrieves a MaxiMet configuration setting from a PC file loads it into the MaxiMet and updates the MetSet edit settings Click on View Output to view the raw ASCII MaxiMet data string scrolling at the output rate View only feature E g Q 127 000 03 000 2000 01 01T00 40 50 2 10 5 0000 21 Main Men Click here to go back to the opening Metzer screen Page 39 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd MetSet Editing Pages Features and Parameters available to view and select will depend on the MaxiMet model connected See page 5 for a summary of available sensor outputs and parameters NOTE Items shown in Bold are the default settings Comms ASCII Setup Wind Temperature Pressure Humidity Preapitaton Reporting PowerUp MODBUS The Comms Page can be used to Select Protocol eu ei Z Interface R5232 ei EZ Baud Rate Lem A Node ID o GA Output rate iHZ sl SA Message Mode CONT e SA Protocol GILL MODBUS or SDI 12 for SDI 12 also set MetSet Comms Interface to SDI 12 Interface RS232 RS422 RS485P2W point to point SDI 12 and EXT EXT setting means RS422 o
36. MaxiMiet User Manual Compact Weather Stations Parts 195 7 OX0OX 60 XX0 Doc No 1957 PS 001 Issue 2 Applies to Units with Firmware 2669 V1 02 01 and higher Se gu o au GMX301 GMX500 O hoa D a r mmm beem L m HU 2 Gill Instruments Limited Saltmarsh Park 67 Gosport Street Lymington Hampshire S041 9EG UK Tel 44 1590 613500 Fax 44 1590 613555 Email anem gillinstruments com Website www gillinstruments com Gill Instruments Ltd Contents 1 FOREWORD RE 4 2 INTRODUCTION RE 4 2 1 MaxiMet Parameters and Part Numbers eee eeeeeseeeeeeeees 4 2 1 1 MaxiMet Order Part Numbers 4 2 1 2 MaxiMet Sensors and Derived Parameters cccccccecceeeeeeeecaeeeeeeeeees 5 Wind Speed and Direction Sensor GMX200 GMX500 GMX501 and GMX600 6 Radiation Shield GMX301 GMX500 GMX501 and GMsSGOO 6 Barometric Pressure GMX301 GMX500 GMX501 and GMspGiO T Temperature Relative Humidity and Dewpoint GMX301 GMX500 GMX501 and EI KA 7 KIEREN 7 Compass GMX200 GMX500 GMX501 and GMaSpGOO cc eecceeeseeeeeee enna eenes 7 Compass RT ele de E 7 S lar GMXJ0 Mh E UR EE 8 GPS Option GMX200 GMX500 GMX501 GMX600 cece eeeeeeeeeeeeeeeeeees 8 Derived Parameters selectable using MetSet Software see page 5 for applicability EE 8 2 2 GMX Sensor Default ASCII Output Summary cece cecceeec eee eeeeeeeeeeaeesees 13 TECHNICAL or ECIFICA TION gege e gg gEEe 15 4 PR
37. Met unit SDI 12 supply voltage 9 6v to 16v dc SDI 12 Units of Measure NOTE Not all the following outputs are available and will depend on the MaxiMet variant see page 5 Para 2 1 2 GMX Model SDI 12 Output Parameters Relative Wind Speed Metres Second Corrected Wind Speed Metres Second Relative Wind Direction Degrees Corrected Wind Direction Degrees Temperature Degrees C Relative Humidity dewpoint Degrees C pressure Hecto Pascals precipitation intensity mm h total precipitation mm solar radiation Wim sunshine hours h height above sea level m latitude degrees positive values are N negative are S longitude degrees positive values are E negative are W date yyyymmdd time hhmmss Status 4 Digit Sensor Status code e g 0000 for a no fault condition MaxiMet Page 51 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd SDI 12 Commands Note Unavailable measurements shall be padded e g 999 99 d Returns Unit Address default is 0 a Current unit address letter factory default is 0 range is O to 9 b New address letter range 0 to 9 aAb Change unit address from a to b see above aM Corrected Wind Speed GPS option units only Status aM aM2 aM 3 aM4 aM Address Relative Wind Direction Relative Wind Speed Corrected Wind Direction Address Temperature Relative Humidity Dewpoint Pressure and Status Address Relative Wind Direction R
38. NT Registers 400039 40 See Simply Modbus program reading example MaxiMet MODBUS Data as follows Simply Modbus 7 0 mode baud data bits stop bits parity PY down 9 register bytes notes dear notes Ca Slave ID First Register No of Regs 32bit Float 200 000 32 00000 eo R BE ato set i367 0000 nction minus offset register size Es Rees Ss 023 7000 PRESS 2 byte ID code abit Float 40009 4480 5666 1028 7000 PRESS ra 4104 3D71 8 640000 IESSE ES 3F93 9598 1 2000000 lte SF99 5552 1 2000000 response time seconds 0 3 _ a P SES 7015 03 04 DA TI OM port 1 Jie i ee Rass MI O IR D Response MMMM Pn z020 z020 11 34 39 1 Be te eens Doce 0 leet ee aa 3 67 00 op an on 9A z0 2 7 High byte Low byte expected response bytes Fi 7 send 3 V High word Low word cre 4470 continuously response time o3 max 7 e iT pause between sends EE _224 failed 2015 03 04 11 34 31 lt 01 03 50 00 00 00 51 42 00 00 00 40 19 99 SA 43 67 00 00 44 80 56 66 42 92 00 00 a 3D 71 40 87 OA 3E 3F 99 99 SA 3F 99 99 SA 0 20 20 20 20 20 32 30 31 35 ZD 30 33 ZD 30 34 20 20 20 20 31 31 3A 33 34 3A 33 39 ZE 31 41 BP 33 33 00 00 00 00 fF FF FF FF FF FF FF FF FF FF FF FF PEPE 7E FE FFE FE 7E EF PEPE TE FPE EF EECH MaxiMet Page 58 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 6 6 Configuring MaxiMet for NMEA Output Connect a default set MaxiMet
39. TEMP Name of Temperature Sensor P Type of Sensor Pressure 1 0243 Pressure Reading in Bars B Pressure Units of Measure Bars PRESS Name of Pressure Sensor H Type of Sensor Humidity 039 Humidity Reading in Percent P Humidity Units of Measure Percent RH Name of Relative Humidity Sensor Z Type of Sensor Solar 0000 Millimetres per hour of Precipitation W Solar Units of Measure Total W M SOLAR Name of Solar Sensor 01 Hex CheckSum lt CR gt is a Carriage return character ASCII hex value d lt LF gt is a Line Feed Character ASCII hex value a Checksum the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes between and not including the and characters Example GMX301 NMEA Data String WIXDR C 023 9 C TEMP P 1 0243 B PRESS H 039 P RH Z 0000 W SOLAR 01 lt CR gt lt LF gt Repeated every second 1Hz output MaxiMet Page 60 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd GMX500 NMEA Output String SWIMWV 049 R 000 03 N A 03 lt CR gt lt LF gt Where SWIMWV 049 R 000 03 N A O3 Wind Instrument Mean Wind direction and Velocity Wind Direction Relative Wind measurement wind speed and or direction information reported with respect to the MaxiMet North marker Wind Speed Knots NMEA output fixed to Knots measurement only Acceptable measurement V is a void fail measurement Hex Check Sum Immediately followed by
40. WIMWV 049 T N A 18 lt CR gt lt LF gt SWIMWV 049 7 N A 18 Wind Instrument Mean Wind direction and Velocity Wind Direction True Wind measurement wind speed and or direction information corrected by a compass and GPS option to give accurate data regardless of where north marker is aligned Wind Speed only available if a GPS option is fitted Knots NMEA output fixed to Knots measurement only Acceptable measurement V is a void fail measurement Hex Check Sum Immediately followed by SWIXDR C 023 9 C TEMP P 1 0243 B PRESS H 039 P RH 01 lt CR gt lt LF gt Where WIXDR C 023 9 C TEMP P 1 0243 B PRESS H 039 P RH 01 Wind Instrument Cross track error Dead Reckoning Type of Sensor Temperature Temperature Reading Temperature Reading in Degrees Centigrade Name of Temperature Sensor Type of Sensor Pressure Pressure Reading in Bars Pressure Units of Measure Bars Name of Pressure Sensor Type of Sensor Humidity Humidity Reading in Percent Humidity Units of Measure Percent Name of Relative Humidity Sensor Hex CheckSum Followed by GPS data if option available GPGGA 161229 487 3723 2475 N 12158 3416 W 1 07 1 0 9 0 M 0000 18 lt CR gt lt LF gt Where GPGGA 161229 487 3723 2475 N 12158 3416 W 1 07 1 0 9 0 MaxiMet Doc No 1957 PS 000x NMEA GPS Protocol Header UTC Time hhmmss sss Latitude ddmm mmmm North South Indicator Longitude
41. all U hole in th ro thickness se a hole in the suppor E tube to secure the cable with With 3 equidistant MS tapped holes a Tyrap D 44 5 GMX200 GMX301 142 142 N N GMX501 MaxiMet Page 29 Issue 2 Doc No 1957 PS 000x June 2015 MaxiMet Doc No 1957 PS 000x Gill Instruments Ltd Ki z Ze IN 7 O SC North Alignment S Se Ka Pointers iF e d de ER Support tube 1 75 inch 44 45mm outer diameter North Alignment Notch 3mm wall thickness Use a hole in the support tube to secure the cable with a Tyrap With 3 equidistant M5 tapped holes GMX600 Page 30 Issue 2 June 2015 Gill Instruments Ltd 6 CONFIGURING WITH METSET MaxiMet can be configured using Gill Instruments MetSet Software which is loaded on the CD supplied with MaxiMet MetSet software can run on PC s running up to and including Windows 8 and can also be downloaded from the Gill Website http www gillinstruments com main software html 6 1 MaxiMet Default Configurations GMX200 Factory Default Data String Items in red relate to the GPS option unit NODE DIR SPEED CDIR CSPEED GPSLOCATION TIME VOLT STATUS 7 Q 021 000 01 090 000 01 50 763004 01 539898 3 10 2015 06 05T 10 19 30 8 05 1 0004 36 Where 1 STX Q Node Letter 021 Wind Direction 000 01 Wind Speed 090 Corrected Direction 000 01 GPS Corrected Speed 50 763004 GPS Latitud
42. and not including the STX and ETX characters MetSet Settings Summary REPORT NODE PRESS RH TEMP DEWPOINT SOLARRAD TIME VOLT STATUS PROTOCOL GILL SENSOR COMPASS ON POWER 0 COMMS RS232 COMPASSDECL 000 0 TIME 2015 06 051 11 04 54 BAUD 19200 SENSOR TEMP ON AUTOTIME ON NODE Q TZOFFSET 00 00 OUTFREQ 1HZ PUPMSG STATUS ON MSGMODE CONT PUPMSG REPORT ON ASCTERM CRLF PUPMSG UNITS ON ECHO ON MODBUS RTU ALIGN 0 MODADDR 7 DATABITS 8 STOPBITS 1 PARITY NONE MODTERM 10 PE MODICT 1000 MaxiMet Page 32 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd GMX500 Factory Default Data String Items in red relate to the GPS option unit NODE DIR SPEED CDIR CSPEED PRESS RH TEMP DEWPOINT GPSLOCATION TIME VOLT STATUS 7 Q 021 000 01 090 000 01 1015 3 041 022 0 008 5 50 763004 01 539898 3 10 2015 06 05T10 19 30 8 05 1 0004 36 Where 1 STX Q Node Letter 021 Wind Direction 000 01 Wind Speed 090 Corrected Direction 000 01 GPS Corrected Speed 1015 3 Pressure 041 Relative Humidity 022 0 Temperature 008 5 Dewpoint 50 763004 GPS Latitude 01 539898 GPS Longitude 3 10 GPS Height location 2015 06 05 Date T10 19 30 8 Time 05 1 Supply Voltage 0004 Status L ETX 36 Checksum NOTES lt STX gt is the Start of String character ASCII value 2 lt ETX gt is the End of String character ASCII value 3 Checksum the 2 digit Hex Che
43. ating point or integer the order of the first pair of bytes and last pair of bytes shall be High Word Low Word Registers start at address 40001 Holding registers available in the order of the MaxiMet data string which can be established by the REPORT command in non Modbus Gill ASCII Mode 8 lf measurements cannot be computed i e a blank field in Gill mode output string their Holding Register contents shall be set to the Maximum Positive value Ox7FFFFFFF for 32 bit format data both floating point and integer and as Ox 7FFF for 16 bit format data Et e a oS MaxiMet MODBUS Default Data String Field Encoding example shows GMX600 Node 4 byte character string Registers 40001 2 Direction 32 Bit Floating point value Registers 40003 4 Speed 32 Bit Floating point value Registers 40005 6 CDIR 32 Bit Floating point value Registers 40007 8 Pressure 32 Bit Floating point value Registers 40009 10 Relative Humidity 32 Bit Floating point value Registers 400011 12 Temperature 32 Bit Floating point value Registers 400013 14 Dewpoint 32 Bit Floating point value Registers 400015 16 Total Precipitation 32 Bit Floating point value Registers 400017 18 Precipitation Intensity 32 Bit Floating point value Registers 400019 20 Date 16 Byte Character String Registers 400021 28 Time 16 Byte Character String Registers 400029 36 Supply Voltage 32 Bit Floating point value Registers 400037 38 Status 32 bit Unsigned Integer UI
44. ation File Des Output rate Message Mode Restore Device Settings Measurement Mode View Output Source Device S N 00000000 MAXIMET 19200 COM10 S W ver 2669 GMX M eT Protocol ver 1 The MaxiMet data string will be shown Note that this terminal program can only read MaxiMet data it cannot be used to send commands to the MaxiMet TTT Terminal Output Q 067 000 04 109 1002 1 038 024 2 009 1 00000 0 000 0 2014 05 17706 06 22 8 10 4 0002 31 a 0 077 000 05 119 1002 1 038 024 2 009 1 00000 0 000 0 2014 05 17706 06 23 8 10 4 0002 131 1Q 075 000 06 117 1002 1 038 024 2 009 1 00000 0 000 0 2014 05 17706 06 24 8 10 4 0002 L39 0 063 000 04 105 1002 1 038 024 2 009 1 00000 0 000 0 2014 05 17706 06 25 8 10 4 0002 L3E Q 032 000 05 074 1002 1 038 024 2 009 1 00000 0 000 0 2014 05 17706 06 26 8 10 4 0002 L t Q 028 000 04 070 1002 1 038 024 2 009 1 00000 0 000 0 2014 05 17706 06 27 8 10 4 0002 Lat Q 047 000 05 089 1002 1 038 024 2 009 0 00000 0 000 0 2014 05 17706 06 28 8 10 4 0002 Lat 0 048 000 07 090 1002 1 038 024 2 009 1 00000 0 000 0 2014 05 17706 06 79 8 10 4 0002 135 0 062 000 04 104 1002 1 038 024 2 009 1 00000 0 000 0 2014 05 17706 06 30 8 10 4 0002 L3A l 0 037 000 09 079 1002 1 038 024 2 009 0 00000 0 000 0 2014 05 17706 06 31 8 10 4 0002 Lat MaxiMet Page 71 Issue 2 Doc No 1957 PS 000x June 2015
45. ble Engineering ESCape key on keyboard End of string character Feet per minute GrouND HEXadecimal InPut Protection Classification Kilometres per Hour Line Feed Metres per second MAGnitude scalar reference to wind speed MAXimum MINimum Miles per Hour National Marine Electronics Association Number Non Volatile Memory Output IBM compatible Personal Computer Printed Circuit Board Read Only Memory Communications standard Communications standard Communications standard Road Weather Averaging Receive Received Data Software Serial Data Interface SECond Start of string character TERMinal Transmit Transmitted Data Positive Negative With Respect To Page 79 Issue 2 June 2015 Gill Instruments Ltd 9 2 Electrical Conformity EC DECLARATION OF CONFORMITY ACCORDING TO COUNCIL DIRECTIVE 2004 108 EC We Gill Instruments Ltd declare under our sole responsibility that the products MaxiMet Weather Station GMX200 MaxiMet Weather Station GMX301 MaxiMet Weather Station GMX500 MaxiMet Weather Station GMX501 MaxiMet Weather Station GMX600 Manufactured by Gill Instruments Ltd Saltmarsh Park 67 Gosport Street Lymington SO41 9EG to which this declaration relates are in conformity with the protection requirements of Council Directive 2004 108 EC on the approximation of the laws relating to electromagnetic compatibility This Declaration of Conformity is based upon compliance
46. cation 2015 06 05 Date T10 19 30 8 Time 05 1 Supply Voltage 0004 Status L ETX 36 Checksum NOTES lt STX gt is the Start of String character ASCII value 2 lt ET X gt is the End of String character ASCII value 3 Checksum the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes between and not including the STX and ETX characters MetSet Default Settings REPORT NODE DIR SPEED CDIR CSPEED PRESS RH TEMP DEWPOINT POWER 0 SOLARRAD GPSLOCATION TIME VOLT STATUS PROTOCOL GILL SENSOR COMPASS ON COMMS RS232 BAUD 19200 NODE Q OUTFREQ 1HZ MSGMODE CONT ASCTERM CRLF ECHO ON ALIGN 0 SENSOR WIND ON UNITS WIND MS NODIR 0 00 AVGSHORT 60 AVGLONG 10 MaxiMet Doc No 1957 PS 000x COMPASSDECL 000 0 SENSOR GPS ON UNITS GPS MS SENSOR TEMP ON UNITS TEMP C SENSOR DEWPOINT O UNITS DEWPOINT C SENSOR PRESS ON UNITS PRESS HPA HASL 00000 00 HASTN 00000 00 SENSOR RH ON UNITS RH SENSOR SOLAR ON Page 34 TIME 2015 06 05111 04 54 SS Issue 2 June 2015 Gill Instruments Ltd GMX600 Factory Default Data String NODE DIR SPEED CDIR CSPEED PRESS RH TEMP DEWPOINT TOTAL PRECIP PRECIP INTENSITY GPSLOCATION TIME VOLT STATUS 7 Q 021 000 01 090 000 01 1015 3 041 022 0 008 5 O0000 2 000 2 50 763004 01 539898 3 10 2015 06 05T 10 19 30 8 05 1 0004 36 Where 1 STX Q Node Letter 021 Wind D
47. cksum sum figure is calculated from the Exclusive OR of the bytes between and not including the STX and ETX characters MetSet Default Settings REPORT NODE DIR SPEED CDIR CSPEED PRESS RH TEMP DEWPOINT GPSLOCATION TIME VOLT STATUS PROTOCOL GILL COMMS RS232 BAUD 19200 NODE Q OUTFREQ 1HZ MSGMODE CONT ASCTERM CRLF ECHO ON ALIGN 0 SENSOR WIND ON UNITS WIND MS NODIR 0 00 AVGSHORT 60 AVGLONG 10 MaxiMet Doc No 1957 PS 000x SENSOR COMPASS ON COMPASSDECL 000 0 SENSOR GPS ON UNITS GPS MS SENSOR TEMP ON UNITS TEMP C SENSOR DEWPOINT O UNITS DEWPOINT C SENSOR PRESS ON UNITS PRESS HPA HASL 00000 00 HASTN 00000 00 SENSOR RH ON UNITS RH Page 33 TIME 2015 06 PUPMSG STATUS ON PUPMSG REPORT ON SS Issue 2 June 2015 Gill Instruments Ltd GMX501 Factory Default Data String ltems in red relate to the GPS Option NODE DIR SPEED CDIR CSPEED PRESS RH TEMP DEWPOINT SOLARRAD GPSLOCATION TIME VOLT STATUS 7 Q 021 000 01 090 000 01 1015 3 041 022 0 008 5 0000 50 763004 01 539898 3 10 2015 06 05T 10 19 30 8 05 1 0004 36 Where STX Q Node Letter 021 Wind Direction 000 01 Wind Speed 090 Corrected Direction 000 01 GPS Corrected Speed 1015 3 Pressure 041 Relative Humidity 022 0 Temperature 008 5 Dewpoint 0000 Solar Radiation 50 763004 GPS Latitude 01 539898 GPS Longitude 3 10 GPS Height lo
48. d Heading GPS Heading shall be displayed with 3 integral digits Result e g 064 degrees GPSLOCATION GPS Latitude Longitude and Height Result e g 50 62956 01 539948 4 90 Where 50 762956 is Latitude Degrees North South positive latitude equals North Where 01 539948 is Longitude Degrees East West negative latitude equals West Where 4 90 is height Using GPS means that regardless of whether a station is located on a mountain or on the coastline of a country it is possible to compare pressure readings without any further calculations as the GPS information gives the height information needed to calculate the difference in elevation to sea level and then it is possible to correct the reading for it GPSSPEED GPS speed over ground Velocity at which the MaxiMet unit with GPS 1s travelling over ground E g 000 10 metres second default In feet minute setting then a reading might be 00020 no decimal places GPSSTATUS Location fix and Number of Satellites Result e g 010B Where 0 is padding 1 is GPS SPS mode fix valid 0 is fix not available OB is a hexadecimal representation of the number of satellites acquired 11 satellites found OA would be 10 satellites etc GSPEED Gust Speed Outputs WMO Gust Speed Maximum Gust Magnitude shall be computed over a block of m gust magnitudes as follows rwa max gust mag max gust m Ag gust _mag gust_mag where m rwa_ short len i ki gust __mag u Ou Z
49. digital signal processing allows a measurement of Rain levels to be made An algorithm has been developed by Gill Instruments to enhance the accuracy of the rain gauge readings Compass GMX200 GM X500 GMX501 and GMX600 MaxiMet contains a 2 axis compass and magnetic field sensing module using Magneto Inductive MI sensors The sensor changes inductance by 100 over its field measurement range It incorporates a temperature and noise stabilized oscillator counter circuit The compass has a high degree of azimuth accuracy MaxiMet uses the internal compass to electronically sense the difference in the earth s field from the system s magnetic field then an on board microprocessor electronically subtracts out the system s magnetic fields reporting highly accurate compass readings Wind direction data is corrected for the orientation of the sensor The output of the wind direction is relative to magnetic North The MaxiMet compass is calibrated at Gill Instruments before the unit is delivered Prior to installing MaxiMet it is suggested that for best accuracy a declination figure should be entered Compass Declination Declination is the magnetic declination the angle between Magnetic North and True North in degrees This is a correction factor that is added to the magnetic north heading from the compass Map and declination figures in decimal figures can be obtained from http www geosats com magdecli html http www magnetic decl
50. ds since the time the wake up command was received by MaxiMet MaxiMet Page 49 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd In Power Saving Enabled Mode Precipitation Intensity and Total Precipitation shall not be computed but Precipitation Status shall be available if fitted for the variant being used GPS if available may or may not have got a fix within the wake up and poll time If a wake up command is not received a poll request will not wake up any sensors or return any measurements If a wake up command is received by MaxiMet but no subsequent poll requests are made during the next 5 minutes the wake up command shall expire If a wake up command expires all enabled sensors shall return to their inactive state If a wake up command expires a subsequent poll request will not wake up any sensors or return any measurements MaxiMet Page 50 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 6 4 Configuring MaxiMet for SDI 12 To configure a MaxiMet unit for SDI 12 Connect a default set MaxiMet to a PC as described in Para 4 6 Open MetSet as described on Para 6 2 Click on the Edit Comms page and select Set Protocol for SDI 12 and Set Interface for SDI 12 No other settings changes are required Click on Save Settings to Device on the Online Mode Menu Shut down the MaxiMet unit Change the hardware connections for SDI 12 see Para 4 9 Power up the Maxi
51. e 01 539898 GPS Longitude 3 10 GPS Height location 2015 06 05 Date T10 19 30 8 Time 05 1 Supply Voltage 0004 Status ETX 36 Checksum NOTES lt STX gt is the Start of String character ASCII value 2 lt ETX gt is the End of String character ASCII value 3 Checksum the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes between and not including the STX and ETX characters MetSet Settings Summary REPORT NODE DIR SPEED CDIR CSPEED GPSLOCATION TIME VOLT STATUS PROTOCOL GILL COMMS RS232 MaxiMet Doc No 1957 PS 000x SENSOR WIND ON SENSOR COMPASS ON COMPASSDECL 000 0 SENSOR GPS ON UNITS GPS MS Page 31 TIME 2015 06 MODTERM 10 MODICT 1000 AUTOTIME ON PUPMSG REPORT ON Issue 2 June 2015 Gill Instruments Ltd GMX301 Factory Default Data String NODE PRESS RH TEMP DEWPOINT SOLARRAD TIME VOLT STATUS 1 Q 1015 3 041 022 0 008 5 0000 2015 06 05T 10 19 30 8 05 1 0004 36 Where STX Q Node Letter 1015 3 Pressure 041 Relative Humidity 022 0 Temperature 008 5 Dewpoint 0000 Solar Radiation 2015 06 05 Date T10 19 30 8 Time 05 1 Supply Voltage 0004 Status L ETX 36 Checksum NOTES lt STX gt is the Start of String character ASCII value 2 lt ETX gt is the End of String character ASCII value 3 Checksum the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes between
52. e 15 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Rain Precipitation Intensity O to 150mm per hour 0 2mm tip Units of Measure milli metres inches Sol 0 to 1600W m EE YYYY MM DDThh mm ss s e g 2014 12 25 1T22 34 56 1 Manual Setting or via GPS option Power Loss Accuracy 10 seconds for at least 24 hours after power removed from MaxiMet Clock back up Period Outputs RS232 RS422 RS485 2 wire point to point or SDI 12 RS232 point to point and RS485 2 wire networkable MODBUS RTU ASCII 1200 SDI 12 4800 57600 ASCII RS232 RS422 RS485 9600 19200 MODBUS RTU ASCIl Data Output 1 reading per second 1 Hz 1 reading per minute 1 reading per hour or Polled Mode MaxiMet Status Status codes provided within the data message string Power Supply Input voltage RS232 RS422 5v to 30v dc RS485 Average Current at 12v dc with GMX200 17mA power saving mode disabled GMX301 24mA default GMX500 24mA GMX501 6mA GMX600 54mA For GPS enabled units allow for an additional 25mA Average Current at 12v dc in GMX200 0 7mA Power Saving Mode and poll for GMX301 0 7mA a reading once per hour GMX500 0 7mA GMX8501 0 7mA GMX600 0 7mA For GPS enabled units allow for an additional 6mA MaxiMet Page 16 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Environmental Protection Class IP p eee EMC BS EN 61326 FCC CFR4 Parts 15
53. e output rate on demand from the Modbus Master In CONTinuous mode the MaxiMet continuously makes measurements set by output rate and only outputs a result when demanded from the Modbus Master Comms ASCII Setup Wind Temperature Pressure Humidity Protocol MODBUS we Interface Baud Rate 19200 Node ID o Output rate 1H Message Mode CONT Sooke p When required settings have been selected click on Save Settings to Device Ix Changes to BAUD COMMS and PROTOCOL settings will not be activated until power to the device is turned off and on again Communication with a PC or logger system may be affected Click on Yes and OK Confirm Seve Settings To Devices xi Write displaved settings to device Setings have been saved a Power down the MaxiMet and apply power back to the MaxiMet to complete setting changes Note now that the unit is in MODBUS mode if any further changes need to be made use the SAFE MODE connection and method to re establish communication with MetSet See Para MaxiMet Page 57 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd MaxiMet MODBUS NOTES All registers are 16bit The first byte is high order and the second is low Each measurement is comprised of two 16bit registers For all registers the order of the two data bytes comprising the 16 bit register s value shall be High Byte Low Byte For each 32 bit data type whether flo
54. ed out gt Contact your supplier for advice if failure persists Precipitation Sensor Users Distributors should clean the plastic dome with a soft lint free cloth and where necessary with a non aggressive cleaning solution ideally once a week Where this is not possible cleaning should be done during regularly scheduled visits to the sensor and site It is recommended the rain gauge sensor should be cleaned every 3 months as a minimum Users can check operation of the rain gauge by performing a simple test of functionality by spraying some water using a mist nozzle similar to that used in many households for watering plants The MaxiMet rain gauge should register incremental rain fall when sprayed with water Solar Sensor L Users Distributors should clean the glass dome with a soft lint free cloth and where necessary with a non aggressive cleaning solution ideally once a week Where this is not possible cleaning should be done during regularly scheduled visits to the sensor and site It is recommended the solar sensor should be cleaned every month as a minimum In order to retain compliance with ISO 9060 it is recommended that the solar MaxiMet unit is returned for calibration every 12 months In general solar calibration should be checked every 24 months as a minimum MaxiMet Page 75 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Compass GPS modules The Compass and GPS module devices are maintenance free
55. ed up then until the unit has reached its minimum long term averaging interval the Wind Status code will read 0100 Measurement Average Building If MaxiMet is in Polled mode then when polled default 1Hz output MaxiMet will output the last valid 10 minute wind speed and direction average updated every minute along with last valid 1 minute Gust magnitude due to default WMO settings In polled mode the last set of computed WMO measurements shall be output on receipt of a poll request In polled mode whilst a new WMO average is building the last computed WMO average shall be output MaxiMet Page 42 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd The Temperature Page can be used to select Comms ASCII Setup Wind Temperature Pressure Humidity Temperature Sensor lon ei ie Temperature Units Ic Q Dew point Sensor ON Ke Dew point units kel D Temperature Sensor ON or OFF Temperature Units C Kor F Centigrade Kelvin Fahrenheit Dew Point Sensor ON or OFF Dew Point Units C KorF The Pressure Page can be used to select Comms ASCII Setup Wind Temperature Pressure Humidity Pressure Sensor On Pressure Units HPA Ke OG Height Above Sea Level 40000000 SA Height Above Station 400000 00 Pressure Sensor ON or OFF Pressure Units HPA MB MMHG INHG Hecto Pascals Milli Bars Millimetres Mercury Inches Mercury Height Above Sea Level 00000 00 0 to 10000 Metres Is the ele
56. elative Wind Speed and Status Address Precipitation Intensity Rain Total Precipitation Rain Status Address Solar Radiation Sunshine Hours Status Address signed Latitude integer part signed Latitude fractional part signed Longitude integer part signed Longitude fractional part Height above mean sea level Status and CRC AM6 aDO Command 1 Unit Address aAb Change the unit address a 0 the default b the new address Address Relative Wind Direction Relative Wind Speed Corrected Wind Direction Corrected Wind Speed GPS option unit only Status Retrieve a line of the above data Address Temperature Relative Humidity Dewpoint Pressure and Status Retrieve a line of the above data MaxiMet Doc No 1957 PS 000x Unit Identification Address Year Month Day Hour Minute Second and Status Request a line of the above data a lt CR gt lt LF gt 0 lt CR gt lt LF gt b lt CR gt lt LF gt 1 lt CR gt lt LF gt 013Gilllnst Serial Number lt CR gt lt LF gt atttnh lt CR gt lt LF gt a is unit identifier ttt is time in seconds n is number of data values Measurement command to retrieve a reading of the maximum time the MaxiMet will take to complete a measurement have data ready and the number of data values lt address gt lt relative wind direction gt lt relative wind speed gt lt corrected wind direction gt lt corrected wind speed gt lt status gt CR gt
57. et COMMS Interface Setting set for EXT using MetSet If MaxiMet is set for EXT Comms then For RS232 connect Pin 8 to Pin 2 ve For RS422 leave Pin 8 open circuit or connect to Pin 3 ve SDI 12 Data 4 5 Power supplies MaxiMet units Supply Voltage 5v to 30v DC Average Current at 12v dc with power saving mode disabled GMX200 17mA GMX301 24mA GMX500 24mA GMX501 24mA GMX600 04mA e The MaxiMet has reverse polarity protection MaxiMet Page 22 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 6 Connecting to a PC using RS232 Default setting 4 1 MaxiMet default factory comms setting is RS232 2 The recommended cable length for reliable operation is limited to 6 5m 20ft 3 For longer cable runs we recommend use of RS422 output 4 As an alternative method of using MaxiMet with RS232 comms change the COMMS setting from RS232 to EXT and connect Pin 8 to the ve supply connection dotted line connection 5 If EXT is selected and Pin 8 is left open circuit then note that RS422 comms will be set maxi PC Typical 9 Way D 9 Way Connector Connector Stanal mamee Cable 3 Signal g twisted pairs names TXD RXD Signal Ground lt Signal Ground Not connected this Screen and Chassis N A end drain wires ground Comms aa 2 EE DC Power supply 4 7 Connecting to a PC using RS422 Not a Default Setting 1 MaxiMet default factory comms setting is RS232 2 To use the Ma
58. formation corrected by a compass and GPS option to give accurate data regardless of where north marker is aligned 000 19 Wind Speed only available if a GPS option is fitted if no GPS N Knots NMEA output fixed to Knots measurement only A Acceptable measurement V is a void fail measurement OF Hex Check Sum Immediately followed by SWIXDR C 023 9 C TEMP P 1 0243 B PRESS H 039 P RH Z 0000 W SOLAR 01 lt CR gt lt LF gt Where WIXDR Wind Instrument Cross track error Dead Reckoning C Type of Sensor Temperature 023 9 Temperature Reading C Temperature Reading in Degrees Centigrade TEMP Name of Temperature Sensor P Type of Sensor Pressure 1 0243 Pressure Reading in Bars B Pressure Units of Measure Bars PRESS Name of Pressure Sensor H Type of Sensor Humidity 039 Humidity Reading in Percent MaxiMet Page 62 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd P RH Z 0000 W SOLAR 01 Humidity Units of Measure Percent Name of Relative Humidity Sensor Type of Sensor Solar Millimetres per hour of Precipitation Solar Units of Measure Total W M Name of Solar Sensor Hex CheckSum Followed by GPS data if option available Where GPGGA 080552 000 5045 7752 N 00132 3963 W 1 08 1 0 10 2 M 47 8 M 0000 79 GPGGA 080552 000 5045 7752 N 00132 3963 W 1 08 1 0 10 2 M 47 8 M 0000 79 lt CR gt lt LF gt NMEA GPS Protocol Header UTC Time hhmmss sss
59. g is RS232 2 Use MetSet to change the COMMS Interface setting to SDI 12 MaxiMet 9 Way circular Connector SDI 12 Device Signal Names Pin Nos 2 Pair Cable Signal Names SDI 12 9 SDI 12 Signal Ground 1 Signal Ground Chassis Ground Terminal Screen wires Chassis ground Post Supply ve Supply ve ME ja Supply MaxiMet Page 24 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 4 10 Set up requirements Host System Note The default delivery output communication setting of MaxiMet output is RS232 with the COMMS Interface setting set for RS232 Use an RS232 to USB converter e g Gill part 1957 10 065 1 8M configuration cable fitted with 9 way MaxiMet connector and with integral 5v USB connector power for MaxiMet see Para 4 1 If an install driver is required for this cable it can be obtained from the supplied CD or downloaded from http www fitdichip com F TDrivers htm Or Use an RS232 to USB adaptor or equivalent for example EasySynch part ES U 1001 A if not using Gill part 1957 10 065 or connect directly to an RS232 COM port Use a PC running Windows software up to and including Windows 8 and with an internal or external interface compatible with the output from the MaxiMet Use a Power Supply 5V to 30Vdc at 200mA if not using the Gill Instruments Configuration cable Use 3 pair cable e g Belden 9503 if not using Gill Part 1723 10 051 length as required if no
60. ination com http www ngqdc noaa gov qeomag declination shtml MaxiMet Page 7 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Solar GMX301 GMX501 MaxiMet uses a high quality Hukseflux LPO2 second class Solar Radiation Pyranometer which complies with ISO 9060 This highly accurate instrument uses thermopile technology to measure hemispherical solar radiation from a 180 degree field of view angle GPS Option GMX200 GMX500 GMX501 GMX600 MaxiMet uses a highly accurate GPS antenna receiver module including a ceramic GPS patch antenna The module is capable of receiving signals from up to 48 GPS satellites and transferring them into position and timing information that can be read over a serial port Small size and high end GPS functionality are combined with low power consumption Derived Parameters selectable using MetSet Software see page 5 for applicability AH Absolute Humidity The humidity of the atmosphere usually expressed as the number of grams of water contained in 1 cubic metre of air Note Relative Humidity also output expressed as a percent measures the current absolute humidity relative to the maximum for that temperature Absolute humidity shall be computed as H C x Pw T Where H absolute humidity C Constant 2 16679 gK J Pw Vapour pressure in Pa T Temperature in K Result e g 08 14 g m AVGSPEED Average Speed Outputs the World Meteorological Organisation
61. ind speed and or direction information corrected by GPS for any direction misalignment of the north marker and or for any motion of the station e g vehicle or vessel Radiation Shield GMX301 GMX500 GMX501 and GMX600 A MetSpec Multi Plate Radiation Shield is used The special shield plate geometry with its double louvre design provides excellent response time performance of quick ambient temperature changes while still working effectively as a baffle to stop larger contaminants such as salt or dirt from reaching the temperature and humidity sensor The shield benefits from very robust material choice and extremely high UV protection requiring no maintenance MaxiMet Page 6 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Barometric Pressure GM X301 GMX500 GMX501 and GMX600 Barometric pressure output is provided by a solid state device fitted on to a circuit board inside a MaxiMet moulding Temperature Relative Humidity and Dewpoint GMX301 GMX500 GMX501 and GM X600 There is an internal solid state instrument contained within the Radiation shield that provides digital output signals for Relative Humidity Temperature and calculated Dewpoint Rain GMX600 A reading of Rain levels is provided by using an optical infra red beam sensor Infra Red beams bounce off the inner optical surface between transmitters and receivers Depending on rain drop levels the intensity of the beams change and internal
62. ing GMX301 Node Pressure Relative Humidity Temperature Dewpoint Solar Radiation Date and Time Supply Voltage Status Checksum e g 7 Q 1018 5 037 023 0 007 8 0000 2014 05 24T06 21 01 0 10 3 0000 3C Default Data String GMX500 Non GPS Node Relative Wind Direction Relative Wind Speed Corrected Wind Direction Pressure Relative Humidity Temperature Dewpoint Date and Time Supply Voltage Status Checksum 1 Q 329 000 01 340 1032 1 040 020 6 006 7 2015 06 09T09 24 19 9 05 1 0000 10 GPS Node Relative Wind Direction Relative Wind Speed Corrected Wind Direction Corrected Speed Pressure Relative Humidity Temperature Dewpoint GPS Location Date and Time Supply Voltage Status Checksum 7 Q 310 000 04 033 000 59 1032 1 040 020 6 006 7 50 762988 01 539893 0 80 2015 06 09T09 24 34 9 05 1 0000 3D Default Data String GMX501 Non GPS Node Relative Wind Direction Relative Wind Speed Corrected Wind Direction Pressure Relative Humidity Temperature Dewpoint Solar Radiation Date and Time Supply Voltage Status Checksum 1 Q 329 000 01 340 1032 1 040 020 6 006 7 0001 2015 06 09T09 24 19 9 05 1 0000 10 GPS Node Relative Wind Direction Relative Wind Speed Corrected Wind Direction Corrected Wind Speed Pressure Relative Humidity Temperature Dewpoint Solar Radiation GPS Location Date and Time Supply Voltage Status Checksum 7 Q 310 000 04 033 000 59 1032 1 040 020 6 006 7 0
63. ing based on AVG short and AVG long settings GSPEED Outputs WMO Gust Speed GDIR Outputs WMO Gust Direction AVGCDIR Outputs WMO average corrected compass direction reading based on AVG short and AVG long settings COMPASSH Compass Heading reading The System Page can be used to select Comms ASCIT Setup Wind Temperature Pressure Humidity Solar Reporting System Power Mode loc ti Date Time 2015 06 17707 33 16 Update System time from GPS on ei 2 Time Offset 400 00 Power Mode 0 or 1 O is the default normal power operation mode 1 is a Power Saving mode and with this set then the unit will make one reading only at the output rate whether in polled mode or continuous mode For lowest power set the unit for 1 output reading per hour NOTE Power Saving Mode 1 is not applicable to NMEA SDI 12 or Modbus outputs Date Time Set Read system Date time YYYY MM DDTHH MM SS Update System time from GPS ON OFF If a GPS unit is enabled then UTC time is applied Time Offset 00 00 GPS UTC time offset range 24 00 to 24 00 hrs MaxiMet Page 47 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd The PowerUp Page can be used to select Comms ASCIT Setup Wind Temperature Pressure Humidity Fregdpitation Repor t ng System PowerUp Status Message Output Q ON iat Report Message Output Ion me EA Units Message Output on Q Status Message Output ON or OFF E g MAXIMET GMX 600 1B 2669 V0 00 17 ST
64. irection 000 01 Wind Speed 090 Corrected Direction 000 01 GPS Corrected Speed 1015 3 Pressure 041 Relative Humidity 022 0 Temperature 008 5 Dewpoint 0000 2 Precipitation Total 000 2 Precipitation Intensity 50 763004 GPS Latitude 01 539898 GPS Longitude 3 10 GPS Height location 2015 06 05 Date T10 19 30 8 Time 05 1 Supply Voltage 0004 Status L ETX 36 Checksum NOTES lt STX gt is the Start of String character ASCII value 2 lt ETX gt is the End of String character ASCII value 3 Checksum the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes between and not including the STX and ETX characters MetSet Default Settings REPORT NODE DIR SPEED CDIR CSPEED PRESS RH TEMP DEWPOINT TOTAL PRECIP PRECIP INTENSITY GPSLOCATION TIME VOLT STATUS PROTOCOL GILL SENSOR COMPASS ON POWER 0 COMMS RS232 COMPASSDECL 000 0 TIME 2015 06 051 11 04 54 BAUD 19200 NODE Q OUTFREQ 1HZ MSGMODE CONT ASCTERM CRLF ECHO ON ALIGN 0 SENSOR WIND ON UNITS WIND MS NODIR 0 00 AVGSHORT 60 AVGLONG 10 SENSOR GPS ON AUTOTIME ON UNITS GPS MS TZOFFSET 00 00 SENSOR TEMP ON PUPMSG STATUS ON UNITS DEWPOINT C MODBUS RTU SENSOR PRESS ON MODADDR 1 UNITS PRESS HPA DATABITS 8 UNITS TEMP C PUPMSG REPORT ON HASL 00000 00 STOPBITS 1 SENSOR DEWPOINT ON PUPMSG UNITS ON HASTN 00000 00 PARITY NONE SENSOR RH ON MODTERM 10
65. ity 049 Wind Direction T True Wind measurement wind speed and or direction information corrected by a compass and GPS option to give accurate data regardless of where north marker is aligned n Wind Speed only available if a GPS option is fitted N Knots NMEA output fixed to Knots measurement only A Acceptable measurement V is a void fail measurement OC Hex Check Sum Immediately followed by WIXDR C 023 9 C TEMP P 1 0243 B PRESS H 039 P RH Y 000 0 M PRECIP 01 lt CR gt lt LF gt Where WIXDR Wind Instrument Cross track error Dead Reckoning C Type of Sensor Temperature 023 9 Temperature Reading C Temperature Reading in Degrees Centigrade TEMP Name of Temperature Sensor P Type of Sensor Pressure 1 0243 Pressure Reading in Bars B Pressure Units of Measure Bars PRESS Name of Pressure Sensor H Type of Sensor Humidity 039 Humidity Reading in Percent P Humidity Units of Measure Percent RH Name of Relative Humidity Sensor Y Type of Sensor Precipitation 000 0 Millimetres per hour of Precipitation M Precipitation Units of Measure Millimetres PRECIP Name of Precipitation Sensor 01 Hex CheckSum Followed by GPS data if option available GPGGA 161229 487 3723 2475 N 12158 3416 W 1 07 1 0 9 0 M 0000 18 lt CR gt lt LF gt Where GPGGA NMEA GPS Protocol Header 161229 487 UTC Time hhmmss sss 3723 2475 Latitude ddmm mmmm N North South Indicator 12158 3416 Longitude ddmm mmmm W
66. le Edit Setup Control 1 036 000 04 079 1002 3 041 023 E ENEE 041 000 4 ISS 3 141 023 1 030 000 04 072 1002 3 041 023 1 022 000 04 064 1002 3 041 023 1 009 000 04 051 1002 3 041 023 1 026 000 02 088 4002 3 041 023 MaxiMet Doc No 1957 PS 000x dl COM10 19200baud Tera Term VT Window Help d UU 8 DUDU H 000 0 2004 05 17 106 26 5 09 8 00000 0 000 0 SA E 109 8 00000 0 000 D 2014 05 17 706 26 53 109 8 00000 0 000 0 2014 05 17 06 26 54 5 109 8 00000 0 000 0 2014 05 17 76 26 55 5 109 8 00000 0 000 0 2014 05 17706 26 56 5 rg d ug ar H09 8 00000 0 000 0 2014 05 17 706 28 57 5 10 4 0000 32 003 8 00000 0 000 0 2014 05 17T06 26 58 5 10 4 0000 3 Page 73 Issue 2 June 2015 Gill Instruments Ltd Setting up a logging file Select File Log Lookin select a log file location Select Save in destination E g Desktop File Name add the name for the file e g teraterm Tick options as required e g Timestamp Click on Save Libraries System Folder Murree Sims System Folder h W Computer File name teraterm log Option Binary Append Plain text Timestamp E Hide dialog Filename eraterm loc Fullpath C Users Murree Sims Desktop Bytes transfered 22100 To stop logging Click on the Close button to Stop Logging Understanding Logged Data Logged data is stored to a file with a log extension This can be viewed in any text HTML editor or
67. llr e HI 181 BZ llr H r Bir Be 181 Ge 849 Ge 849 Ge DA Ge 849 Ge 849 2 849 Ge 849 Ext About T thet T tzl T tzl T t 2l T thet T t 2l T thet ce H14 ce 814 ce H14 ce H14 Ze 818 Ze 8148 Ze 818 Close the 4800 baud rate Wind or Terminal Program Power down the MaxiMet and re apply power Open a new Wind or Terminal program at 19200 baud rate RS232 data will now scroll on screen at the MaxiMet default 19200 baud rate MaxiMet Doc No 1957 PS 000x Page 70 Issue 2 June 2015 Gill Instruments Ltd 7 VIEWING MAXIMET DATA STRING 7 1 Use MetSet to View the MaxiMet Data String MetSet Software allows you to view the MaxiMet data string graphically Before you can use MetSet check that MaxiMet is correctly connected to a Serial COM port or USB COM port on your PC NOTES MetView is compatible with RS232 and RS422 connected units only MetView will not read SDI 12 or MODBUS data strings Opening MetSet Click on the MetSet Connect and Read button MetSet will display the Editing Screen Now Click on View Output button Mettet Configuration Software v2 05 00 Editing device settings online a Comms ASCII_Setup Wind Temperature Pressure Humidity Precipitation Reporting System PowerUp MODBUS Get Device Settings Protocol 4 m p a P A ttings Interface Load Configuration File Baud Rate Node ID Save Configur
68. n and off or ferrous bodies that will move Make sure that MaxiMet is not mounted close to areas that may be see large sources of local magnetic fields Electric motors usually generate magnetic fields that are much stronger than the earth s field It is recommended that MaxiMet be moved as far away from the motors as possible As a guide ensure that MaxiMet is mounted at least 1 metre away from Ferrous objects to prevent them influencing the compass reading GPS A clear view of the sky is best for an optimal satellite lock Tree canopy surrounding hills mountains tall buildings and any mounting structure mast that obscures the view overhead or of the horizon can impede reception Signal multipath errors can occur if the GPS signal is reflected off objects such as tall buildings or large rock surfaces before it reaches the receiver This increases the travel time of the signal thereby causing errors Number of satellites visible The more satellites a GPS receiver can see the better the accuracy Buildings terrain electronic interference or sometimes even dense foliage can block signal reception causing position errors or possibly no position reading at all GPS units typically will not work indoors or underground Solar MaxiMet should be mounted horizontally and as level as possible A clear view of the sky is best for an optimal solar measurements Mounting obstructions tree canopy hills mountains and tall buildings that obscu
69. o point digital MODBUS RTU ASCII NMEA and SDI 12 outputs 2 1 MaxiMet Parameters and Part Numbers 2 1 1 MaxiMet Order Part Numbers MaxiMet Page 4 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 2 1 2 MaxiMet Sensors and Derived Parameters GMX Sensor Parameter Wind Speed Relative Wind Direction Relative Compass Temperature Air Humidity Relative Barometric Pressure Rain Precipitation built in Solar GPS option GMX Derived Parameter Average Speed Average Direction Average Corrected Direction Corrected Direction Gust Direction Gust Speed Status Sensors Wind Status Dewpoint Absolute Humidity Pressure at Sea Level Pressure at Station Precipitation Intensity Precipitation Total Precipitation Status Solar sunshine Hours Volts Supply Corrected Speed Average Corrected Speed Corrected Gust Speed E RSC ERC RSC NA SCH NA Is Lsv NA ee WA ee wa fs S T TWA u ww NA Iw Is ww Iw Is Iw NA CR RSC RSC RSC SECHS a a RSC NA f uv lx ls le Ca ESCH ES u a le NMA fs ES NA le a SSC NMA f fs wf fe NM f fl wf ls NA NA NA NA os NA NA NA NA NA NA NA NA CNA NA LON cs f NA GPS Opt GPSOpt GPS Opt GPS Opt NA GPS Opt GPS Opt GPS Opt GPS Opt NA GPS Opt GPSOpt GPS Opt GPS Opt G GPS Location Longitude latitude NA NA NA NA m Standard Fitted NA Not Available Opt
70. of the product with the following harmonized standards Emissions EN61326 2013 Immunity EN61326 2013 Signed by DNC CO Stahsd A C R Stickland Director Date of issue 16 06 2015 Place of issue Gill Instruments Limited Saltmarsh Park 67 Gosport Street Lymington SO41 9EG ISO 9001 Registered MaxiMet Page 80 Issue 2 Doc No 1957 PS 000x June 2015
71. onverter including 5v dc power and communication configuration cable 9 way MaxiMet connector fitted one end and USB connector at the other end CONNECTOR 18 METRES 1957 10 065 USB TO RS232 CONVERTER 4 2 Connector and Cable Assembly The MaxiMet is supplied with a mating 9 way connector Open the pack of connector parts supplied Gill Part 1405 PK 069 Souriau Clipper Part Number CLF1201 CL101021 CM10SS10MQ Arrange Backshell Parts Trim back the screened cable outer and screen sleeves 40mm Trim back the screen drain wires flush with the outer sleeve Strip back the connection wires by 5mm and tin solder Solder the contact pins to the wires please note that the connector supplies the correct strain relief for cables with an outside diameter of 6 12mm Screen Twisted Pair Cable In gt mm SS 40 mm Screen drain wires cut flush MaxiMet Page 18 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Put the parts on the cable in the order as shown below QO Whilst squeezing the red retainer in the direction of ARROWS A pull in the direction of ARROW B A A gt q a gt Your connector should now resemble the connector in the picture below Insert each contact pin until you feel a slight click If you have inserted the contact into the incorrect hole it can be removed at this point by simply pulling it out Please note there will be some resi
72. r radiation gt lt sunshine hours gt lt status lt atttn lt CR gt lt LF gt lt address gt lt signed latitude integer part gt lt signed latitude fractional part gt lt signed longitude integer part gt lt signed longitude fractional part gt lt height above mean sea level gt lt status gt CRC gt CR gt lt LF lt atttn lt CR gt lt LF gt lt address gt lt Year gt lt Month gt lt Day gt lt Hour gt lt Minute gt lt Second gt lt status gt lt CRC gt lt CR gt lt LF gt Page 55 00033 lt CRC gt lt CR gt lt LF gt 0 000 0 000 0 0000HB lt CR gt lt LF gt 00023 lt CRC gt lt CR gt lt LF gt 0 0001 00 00 O000HB lt CR gt lt LF gt 00026 lt CRC gt lt CR gt lt LF gt 0 50 763052 001 539920 00000 90 0000 HB lt CR gt lt LF gt 00017 lt CRC gt lt CR gt lt LF gt 0 2015 06 15 14 07 52 0004 lt CR gt lt LF gt Issue 2 June 2015 Gill Instruments Ltd 6 5 Configuring MaxiMet for MODBUS MaxiMet Supported Modbus Specification MODBUS RTU or ASCII Baud Rate 9600 or 19200 Baud COMMS RS232 point to point only RS485 2 wire networkable Modbus Parameters ASCII or RTU Modbus ASCII Modbus RTU ASCII 0 to 9 and A to F Hex Binary 0 to 255 Longitudinal Redundancy Check Cyclic Redundancy Check Error Check LRC CRC Frame Start Character 3A Hex 3 5 Characters Silence FrameEnd Characters CR LF OD 0A Hex 3 5 Characters Silence essage Datapis A E Requires MaxiMet
73. r RS232 selected by a wire link on connector pin 8 see Page 22 table Baud Rate 4800 9600 19200 38400 or 57600 1200 auto selected with SDI 12 setting Node ID A to P Qto Z Output Rate 1Hz 1 per second Once per Minute Once per Hour Message Mode CONT Continuous output or POLL Polled Mode NOTE When COMMS or Baud Rate settings are changed and Saved to Device a warning is issued by MetSet These setting changes will not become active until the MaxiMet power is turned off and turned on again The connecting device will then also need its Comms and Baud rate settings changed to match the MaxiMet The ASCII Set up Page can be used to select Comms ASCII Setup Wind Temperature Pressure Humidity Termination CRLF d vi Echo EI GA Termination CRLF or CR Echo ON or OFF MaxiMet Page 40 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd The Wind Page can be used to select Comms ASCIT Setup Wind Temperature Pressure Humidity North Alignment 0 S Sensor Windspeed ON Wind speed Units IMS S No Direction Wind Speed 0 00 Short Term Average Long Term Average 10 3 Compass Sensor ON K S Compass Dedination 000 0 Po GPS Sensor ON A GPS Speed Units IMS North Alignment from 0 359 degrees Sensor WindSpeed ON or OFF Wind Speed Units MS KTS MPH KPH FPM Metres Second Knots Nautical miles hour Miles Hour Kilometres Hour Feet Minute No
74. r returned to Gill Instruments MaxiMet Page 25 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 5 INSTALLATION 5 1 General Installation Guidelines Interference As with any sophisticated electronics good engineering practice should be followed to ensure correct operation Always check the installation to ensure the MaxiMet is not affected by other equipment operating locally which may not conform to current standards e g radio radar transmitters boat engines generators etc Do NOT mount the MaxiMet in close proximity of high powered radar or radio transmitters A site survey may be required if there is any doubt about the strength of external electrical noise Guidelines Avoid mounting in the plane of any radar scanner a vertical separation of at least 2m should be achieved Radio transmitting antennas the following minimum separations all round are suggested VHF IMM 1m MF HF 5m Satcom 5m avoid likely lines of sight Ensure the product is correctly earthed in accordance with this manual Use cables recommended by Gill keeping the length below the maximum allowed Where the cables are cut and re connected junction boxes plugs and sockets the cable screen integrity must be maintained to prevent the EMC performance being compromised Earth loops should not be created earth the system in accordance with the installation guidelines Ensure the power supply operates
75. re the view overhead or of the horizon can impede solar readings If a solar sensor is incorporated with the MaxiMet then mount the unit as vertical as possible during installation for optimal readings General Alignment The MaxiMet anemometer should be set to point North or to another known reference direction using the North Pointers which are identified on the instrument figure on pages 29 and 30 If the MaxiMet Compass output is enabled by using MetSet then a direct magnetic north compass reading can be used to set MaxiMet north markers to north Otherwise MaxiMet need not be aligned precisely if the compass Corrected Direction CDIR readings are to be used MaxiMet Page 27 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Lanyard Safety Line Attachment Gill Part 026 05335 A 50cm stainless steel Lanyard wire Nylon Coated is supplied connected to MaxiMet through a slot in the lower moulding should this feature be required to prevent it falling from height when installed The Lanyard should be removed if it is not to be used If it is required to fit a replacement lanyard Push the larger loop through the Lanyard slot and then feed back through the larger loop pull to secure The smaller loop end of the lanyard should be secured to the installation pole mount etc The picture shows where the lanyard safety wire line attaches to recessed post in MaxiMet Mounting Tube Pole A tube 1 75 inches 44
76. ry second In this case the WMO averaged Wind reading result will be based on Long Term Average 1 10 x Short Term Average 10 60 For instance if a 2 minute averaged data output was required set RWA Long to 2 RWA Short to 60 For these settings then every minute you would get an averaged output reading based on the previous 2 minutes of wind data For instance if a 10 minute averaged data output was required set RWA Long to 10 RWA Short to 60 For these settings then every minute you would get an averaged output reading based on the previous 10 minutes of wind data To enable WMO averaged Wind readings in the MaxiMet data string select the Reporting Tab USERDEF and add new reporting field from the drop down menu called AVGSPEED Outputs Average Speed readings AVGDIR Outputs Average Direction Readings AVGCDIR Outputs Average Corrected Direction Readings The maximum Gust Speed is the magnitude of the maximum gust measured over the short term output period Gust is generated from a rolling 3s average of the short term output period and reset at the end of short term output period GSPEED Outputs Average Wind Gust Speed The Maximum Gust Direction is the direction of the maximum gust measured over the short term output period Gust is generated from a rolling 3s average of the short term output period and reset at the end of short term output period GDIR Outputs Average Wind Gust Direction Whenever the unit is power
77. spreadsheet application 0 320 000 DM 002 1002 5 039 023 7 009 1 00000 0 279 000 07 321 1002 5 039 023 7 009 1 00000 Q 273 000 06 317 1002 5 039 023 7 009 1 00000 Q 279 000 05 321 1002 53 039 023 7 009 1 00000 Q 336 000 04 018 1002 5 039 023 7 009 1 00000 Q 305 000 09 347 1002 4 039 023 7 009 1 00000 Q 343 000 OD 025 1002 4 039 023 7 009 1 00000 MaxiMet Page 74 Doc No 1957 PS 000x 0 000 0 2014 05 17T06 H 000 0 2014 05 17T06 0 000 0 2014 05 17T06 0 000 D 2014 05 17T06 0 000 D 2014 05 17T06 0 000 0 2014 05 17T06 0 000 0 2014 05 17T06 4 10 4 410 4 410 4 410 4 410 4 410 4 410 4 0000 37 4 0000 3A 4 0000 38 A 0000 33 A 0000 3 A 0000 36 4 0000 34 Issue 2 June 2015 Gill Instruments Ltd 8 MAINTENANCE amp FAULT FINDING 8 1 Cleaning and Handling Ideally when installing the unit handle with lint free gloves and degrease the unit to reduce the build up of deposits 8 2 Servicing There are no moving parts or user serviceable parts requiring routine maintenance Opening the unit or breaking the security seal will void the warranty and the calibration In the event of failure prior to returning the unit to your authorised Gill distributor it is recommended that gt All cables and connectors are checked for continuity bad contacts corrosion etc gt A bench test is carri
78. ssue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Safe Mode Method 2 Connection Connect the MaxiMet for RS232 communication as detailed in Para 4 6 Note at this stage the MaxiMet supply to be switched off Open a Terminal program e g Gill WIND Software obtainable from http www gillinstruments com main software html or equivalent terminal program e g Tera Term Putty etc If using Gill Wind Software note that the Tools features are not applicable Open Gill Wind Software Serial Port Set the drop down menu to the required COM Port Connection Click on the OK button Baudrate Set the drop down menu to 4800 Bauds A blank Wind Terminal screen will be opened Left Click the mouse in the blank terminal screen Hold down the key on the keypad With the key still held down apply power to the MaxiMet This will result in placing the unit into SAFE MODE Press Enter to start a new line Ignore illegal command line Baudrate Tools Exit About SAFE MODE gt EEE ee ILLEGAL COMMAND LINE A To now change communication from say SDI 12 or MODBUS or RS422 or RS485 to Default RS232 Type COMMS RS232 and press Enter Type Q and press Enter to exit SAFE MODE Data will now scroll on screen MaxiMet Page 69 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Baudrate SAFE MODE Tools gt HHHH ILLEGAL COMMANDO LINE gt COMMS RS232 245 181 93 Bir BZ
79. stance Rear View of Connector MaxiMet Page 19 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd Continue to insert all of the contacts you require Once all of the contacts are inserted push the red retainer into place NB The retainer can only be pushed back into place if the contacts are fully engaged Fit the connector to the MaxiMet so that you can finish assembling the connector screw the back shell onto the connector until it is fully in place Please note that the final rotations can be slightly stiff Now screw the next part of the connector into place Re Now screw the cable clamping nut into place ec The connector can now be removed from the MaxiMet NOTE To disassemble the connector reverse this procedure MaxiMet Page 20 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 4 3 Cabling MaxiMet has five communication connection options USB using the 1 8m MaxiMet RS232 to USB cable Part No 1957 10 065 RS232 RS422 RS485 two wire point to point SDI 12 It is important that the cable is appropriate for the chosen communication network The following sections describe the recommended types and maximum lengths of cable in each case 4 3 1 Cable type Wire type 24AWG Wire size 7x32 AWG Cable outer diameter 6 12mm to match the connector gland For RS422 485 operation the cable should have twisted pairs with drain wire screened with aluminised tape
80. t using the Gill Instruments Configuration cable Software Gill MetSet Software used as a configuration Tool supplied on MaxiMet CD will run on PC s with up to and including Windows 8 and can be downloaded free from http www gillinstruments com main software html Bench system test The CD supplied in the MaxiMet box contains a copy of the manual and relevant software to check and set up the MaxiMet unit Prior to physically mounting the MaxiMet in its final location we strongly recommend that a bench system test be carried out to confirm the system is configured correctly is fully functional and electrically compatible with the selected host system and cabling preferably utilising the final cable length The required data format units output rate and other options should also all be configured at this stage Connect the MaxiMet to a PC wired as per RS232 connections in Para 4 6 Alternatively use a Gill configuration cable part 1957 10 065 with a 9 way connector fitted on one end and USB converter at the other end if required to simplify set up between MaxiMet and a PC Open Gill MetSet software provided to read check settings or change settings as per para 6 2 Use MetSet to View the data string and confirm that the Status field reads 0000 4 11 Packaging Whilst the MaxiMet is being moved to its installation site the unit should be kept in its packaging Retain the packaging for use if the unit has to be moved o
81. tion Rain Total reading this is an accumulated rain reading updated at the output rate Is set to zero on MaxiMet power up Is set to zero when the clock reads 23 59 59 to 00 midnight if Automatic Reset of Total Precipitation is set to ON default setting Outputs Precipitation Rain Intensity It is the sum of the last sixty lots of 1 minute accumulated Rain data Anew sum measurement is generated every minute Outputs the Solar Reading Outputs Longitude Latitude and GPS height Outputs Date and Time Outputs the MaxiMet Supply Voltage Outputs the MaxiMet Sensors Status Code see page 77 The drop down menu selectable parameters available will depend on the MaxiMet model see pages 5 and 8 to12 MaxiMet Doc No 1957 PS 000x Page 45 Issue 2 June 2015 Gill Instruments Ltd These are WINDSTAT Outputs Status codes relating to Wind Sensor Data see Page 78 PRECIPS Outputs Precipitation Rain Status as No N or Yes Y Changes N to Y when total precipitation is incremented Changes Y to N when total precipitation has not incremented in the last 60 seconds CSPEED Outputs Corrected Speed if a GPS unit is fitted PASL Outputs Barometric Pressure at Sea Level if HASL figure set see page 43 P Pb Tb Tb Lb h g0 M R Lb where P adjusted pressure Pb pressure pascals as measured by the pressure sensor Tb temperature K Lb standard temperature lapse rate K m in
82. tion devices are wired No output correctly NOTE It is usual for Anemometer TX to be connected to converter device RX If appropriate use Safe Mode to attempt to obtain communication with the MaxiMet Check that the communication settings of the MaxiMet and host system match Corrupted output Try a slower baud rate Check cable lengths and type of cable Check for sources of external signal interference Dewpoint readings measure C F K settings are correct on power up Check that the Wind Sensor units of measure m s up Unexpected Temperature and Humidity Device faulty Humidity readings Unexpected Barometer Check units of measure are set correctly and if offset Readings HASL or PSTN readings have been applied Status code not 0000 or A See Table below Sensor Status Codes Code Status i Condition _ No fault conditions detected in 0001 Wind Measurement Fault Wind Sensor faulty 0002 GPS Error E g Locating Satellite fix Source for Corrected Wind ae 0004 Direction is GPS GPS notification 0006__ GPS Location Missing 0010 ESCH Temperature sensor faulty lf Temperature and Humidity are reporting 0020 Dewpoint fault correctly then this code indicates a main pcb fault 0040 Humidity fault Humidity Sensor faulty 0080 Pressure Sensor Warning Pressure sensor reading not available unit faulty 0100 Compass fault Invalid heading due to compass fault MaxiMet Page 77 Issue 2 Doc No 1957 PS 000
83. to a PC as described in Para 4 6 Open MetSet as described on Para 6 2 and click on the Reporting page Change the Report Format drop down menu from USERDEF to NMEA On the Comms Page select the required Interface generally RS422 On the Comms Page Select the required Baud rate normally 4800 bauds or sometimes 9600 baud Click on Save Settings to Device NOTE Wind Speed units are fixed at Knots N GMX200 NMEA Output String SWIMWV 049 R 000 03 N A 03 lt CR gt lt LF gt Where SWIMWV Wind Instrument Mean Wind direction and Velocity 049 Wind Direction R Relative Wind measurement wind speed and or direction information reported with respect to the MaxiMet North marker 000 03 Wind Speed N Knots NMEA output fixed to Knots measurement only A Acceptable measurement V is a void fail measurement O3 Hex Check Sum Immediately followed by SWIMWV 049 T N A 18 lt CR gt lt LF gt SWIMWV Wind Instrument Mean Wind direction and Velocity 049 Wind Direction T True Wind measurement wind speed and or direction information corrected by a compass and GPS option to give accurate data regardless of where north marker is aligned 8 Wind Speed only available if a GPS option is fitted format e g 001 05 N Knots NMEA output fixed to Knots measurement only A Acceptable measurement V is a void fail measurement 18 Hex Check Sum Immediately followed by GPS data if option available GPGGA 161229 487 3723 2
84. u gg 3 nu vector u gue e 3 rv vector v avg A J Result e g 015 15 Metres second default MaxiMet Page 10 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd PASL Pressure at Sea Level Outputs Barometric Pressure at Sea Level if HASL figure set see Page 38 P Pb Tb Tb Lb h gO M R Ubu where P adjusted pressure Pb pressure pascals as measured by the pressure sensor Tb temperature K Lb standard temperature lapse rate K m in ISA For the Troposphere this is assumed to be 0 0065 Kelvin metre h height meters sensor s height above or below sea level i e Height Above Sea Level plus Height Above Station R universal gas constant for air 8 31432 Nem moleK gO gravitational acceleration 9 80665 m s2 M molar mass of Earth s air 0 0289644 kg mol Result e g 1015 7 hecto pascals default PRECIPI Precipitation Intensity Outputs Precipitation Rain Intensity It is the sum of the last sixty lots of 1 minute accumulated Rain data A new sum measurement is generated every minute Result e g 000 2 millimetres default PRECIPS Precipitation Status Outputs Precipitation Rain Status as N or Y No or Yes Changes N to Y when total precipitation is incremented Changes Y to N when total precipitation has not incremented in the last 60 seconds Result e g N or Y PRECIPT Precipitation Total firmware version
85. us gt lt CRC gt lt CR gt lt LF gt atttn lt CR gt lt LF gt lt address gt lt temperature gt lt relative humidity gt lt dewpoint gt lt pressure gt lt status gt lt CRC gt lt CR gt lt LF atttn lt CR gt lt LF gt a lt dir gt lt mag gt lt status gt lt CRC gt lt CR gt lt LF gt Page 54 Example 00035 lt CRC gt lt CR gt lt LF gt O is unit identifier 003 is 3 sec measurement 5 is the number of data readings Direction Speed Corrected Direction Corrected Speed and Status 0 192 000 07 267 999 9 0000DQ lt CR gt lt LF gt 00025 lt CRC gt lt CR gt lt LF gt 0 023 3 035 007 2 1015 1 0000AiL lt CR gt lt LF gt 00033 lt CRC gt lt CR gt lt LF gt 0 168 000 02 0000GbT gt lt CR gt lt LF gt Issue 2 June 2015 Gill Instruments Ltd MaxiMet Address Precipitation Intensity Total Precipitation Status and CRC Retrieve a line of the above data Address Solar Radiation Sunshine Hours Status and CRC Retrieve a line of the above data Address Longitude Latitude Height Status and CRC Retrieve a line of the above data Address Year Month Day Hour Minute Second Status and CRC Retrieve a line of the above data Doc No 1957 PS 000x atttn lt CR gt lt LF gt lt address gt lt precipitation intensity gt lt total precipitation gt lt status gt lt CRC gt lt CR gt lt LF lt atttnh lt CR gt lt LF gt address gt lt sola
86. ution or marine environments then consideration should be given to returning the unit for maintenance at Gill instruments every 12 to 24 months to ensure proper performance Calibration A calibration check can be done by any user distributor by comparing the values measured by MaxiMet with a reference value or in an environmental chamber Users should understand that these checks are not the same as the calibration checks or calibration done at Gill but they can provide users with some degree of confidence to the validity of their measurements If a user distributor notices a significant difference between the MaxiMet and their test environment reference they should contact Gill to discuss this and see if a calibration is required See individual parts above for any recommended calibration periods Returning the MaxiMet If the unit has to be returned it should be carefully packed in the original packaging and returned to your authorised Gill distributor with a full description of the fault condition An RMA number should be obtained from Gill Instruments first if returning directly to Gill Instruments MaxiMet Page 76 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 8 3 Fault finding Symptom Solution o Check DC power to MaxiMet cable and connections Check communications settings of the MaxiMet and host system match including correct Com port Check that the unit is in Continuous mode Check that in line communica
87. vation on the ground of the unit relative to the average sea level point Atmospheric pressure varies with height above sea level as well as with atmospheric conditions As the altitude at which the pressure sensor operates is usually constant the station height a correction is made to make the reading of the pressure sensor seem as if it were made at sea level This means that the pressure reading has to be slightly increased from the value read by the MaxiMet sensor situated above sea level often known as the station pressure Height Above Station 00000 00 100 to 100 Metres The user can set the HASL figure together with the HASTN figure allows pressure at Sea Level to be calculated The Humidity Page can be used to select Comms ASCII Setup Wind Temperature Pressure Humidity Humidity Sensor ON SA Humidity Units or Humidity Sensor ON or OFF Humidity Units KC MaxiMet Page 43 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd The Precipitation Rain Page can be used to select Comms ASCII Setup Wind Temperature Pressure Humidity Precipitation Rain Sensor on SA Precipitation Units MM e SA Auto reset Total Precipitation ON P Rain Sensor ON or OFF Precipitation Units MM or IN Auto reset Total Precipitation ON or OFF ON resets the total precipitation reading to zero when the clock time reads 23 55 59 to 00 midnight OFF results in continuous total precipitation
88. x June 2015 Gill Instruments Ltd WindStat Codes Code Status Condition Status Condition SS measurement period 0004 Wind Sensor both Axis failed Wind U and V Axis blocked or faulty 000B Wind Sensor readings failed Wind Sensor data output fault 0100 Wind Average Building WMO wind average building 0200 Corrected Wind Measurement Compass corrected wind measurement not available failure EE WE WE A NMEA Acceptable Data No fault conditions detected in measurement period NMEA Void Data aa detected in measurement 8 4 Safe Mode If a unit is received that will not communicate or the configuration settings are not known then Safe Mode can be used to establish communication with the MaxiMet and change configuration settings see Para 6 7 8 5 Bench Test See Para 4 10 8 6 Returning Units If the unit has to be returned it should be carefully packed in the original packaging and returned to your authorised Gill distributor with a full description of the fault condition 8 7 Guarantee For terms of guarantee contact your supplier Warranty is void if the unit is damaged or broken MaxiMet Page 78 Issue 2 Doc No 1957 PS 000x June 2015 Gill Instruments Ltd H APPENDICES NMEA 0183 V3 No NVM O P PC PCB ROM RS232 RS422 RS485 RWA RX RXD S W SDI 12 SEC STX TERM TX TXD MaxiMet Doc No 1957 PS 000x Calibration Carriage Return Carriage Return Line Feed Comma Separated Varia
89. xiMet with RS422 comms use MetSet to change the COMMS Interface setting to RS422 3 Alternatively use MetSet to change the COMMS Interface setting to EXT and leave connector Pin 8 open circuit 4 If EXT is selected and Pin 8 connected to Pin 2 supply positive then COMMS will change to RS232 mona PC with RS422 9 Way Connector converter V supply V supply TXD 4 RXD TXD 5 RXD RXD 6 TXD RXD 7 TXD Signal Ground 1 Signal Ground Not connected Screen and drain wires Chassis ground this end N A Comms 8 V supply 2 V supply MaxiMet Dageii 0 se Doc No 1957 PS 000x June 2015 Gill Instruments Ltd 4 8 Using RS485 2 wire point to point only not a default setting 1 MaxiMet default factory comms setting is RS232 2 To use the MaxiMet with RS485 2 wire point to point communication use MetSet to change the COMMS Interface setting to RS485P 2W 3 Use MetSet to change the Message setting from CONT Continuous to POLL the node address letter may be changed if required 4 Leave connector Pin 8 open circuit MaxiMet 9 Way Circular Connector PC with RS485 card pairs TXD A en RXD T RXD TXD RXD Signal Ground a SR Signal Ground Do NOT connect N A Chassis ground at this end COMMS 8 V supply 2 DC Power V supply 3 ne a _ supply NO OF 4 9 Using SDI 12 2 wire network not a default setting 1 MaxiMet default factory comms settin

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