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DAVIS WeatherLink Software User's Manual

Davis weatherlink weather-accessories: users guide
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User's Guide
For Windows
Version 4.0
Product #7862
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Summary of Contents for DAVIS WeatherLink

  • Page 1 Software User’s Guide For Windows ™ Version 4.0 Product #7862...
  • Page 2 • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Changes or modifications not expressly approved in writing by Davis Instruments may void the user's authority to operate this equipment. Product Number: 7862 Davis Instruments Part Number: 7395-121 ®...
  • Page 3 Software User’s Guide For Windows Version 4.0...

  • Page 4: Table Of Contents

    A B L E O F O N T E N T S NTRODUCTION Contents of Package ......... . 1 Optional Accessories .
  • Page 5 A B L E O F O N T E N T S Setup Menu ..........18 Walkthrough .
  • Page 6 Using the Plot Window ........65 Adding and Removing Variables .
  • Page 7 Command Line Options ........100 Importing WeatherLink Data into Other Programs ....101 Leap Year Correction .
  • Page 8 A B L E O F O N T E N T S ROUBLESHOOTING UIDE Communications Problems ........103 Program Problems .
  • Page 9 A B L E O F O N T E N T S...

  • Page 10: Ntroduction

    N T R O D U C T I O N Welcome to Davis Instruments’ WeatherLink Software! The WeatherLink Data Logger (referred to as the WeatherLink in this manual) and software allows you to connect your personal computer to Davis weather stations to store, view, plot, analyze, export, and print weather data collected by your Davis station.
  • Page 11 N T R O D U C T I O N Optional Accessories...

  • Page 12: Hardware Installation

    Direct connection involves connecting the computer directly to the WeatherLink. Phone modem connection refers specifically to any installation where the WeatherLink is connected to a modem and you communicate with the WeatherLink via a modem at your computer. Requirements and installation for each type of connection differ, and are explained separately below.

  • Page 13: Direct Connection

    Windows-Compatible Display VGA (16 Colors) minimum. SVGA (256 Colors) recommended. One Free Serial Port One external modem to connect to the WeatherLink The modem must be Hayes One internal fax modem or external fax modem connected to your computer The modem must be Hayes compatible and run at either 1200 or 2400 baud. A fax modem is required to take advantage of the software’s AutoFax feature...

  • Page 14: Direct Connection Installation

    Failure to remove power to the console before installing the WeatherLink may cause damage to the WeatherLink or console. 3. Insert the cable plug at the end of the short cable coming from the WeatherLink into the jack marked WEATHERLINK on the bottom of the console.

  • Page 15: Phone Modem Connection

    2. At the station console site, position the external modem in a location where it can con- nect to both the WeatherLink and a phone jack and plug it into the phone jack. DO NOT TURN THE MODEM ON AT THIS TIME.
  • Page 16 Do not attempt to use the DB25 adapter and a gender changer to attach the WeatherLink to a modem because it will not work. 8. Insert the cable plug at the end of the long cable coming from the WeatherLink into the Telephone Modem Adapter.

  • Page 17: A Few Notes About Phone Modem Connections

    “Serial Port” on page 20), the software automatically dials the station whenever you attempt to initiate a program action which requires the software to “talk” to the WeatherLink. While connected to a phone modem station, an “On-Line” icon appears in the toolbar.

  • Page 18: Software

    U N N I N G T H E O F T W A R E To run the software, double-click on the WeatherLink 4 icon. If you have no sta- tions in the program directory when you run the software, the software will prompt you to add a station (see “Adding a Station”...

  • Page 19: About The Walkthrough

    Select units of measure in which station information is displayed. Serial Port Settings (see ”Serial Port” on page 20) Set COM port to which WeatherLink is connected. Specify modem connection settings such as baud rate, phone number, and modem initialization string.
  • Page 20 Set Archive Interval (see ”Set Archive Interval” on page 24) Select the interval at which you want data stored to the WeatherLink’s archive memory (see ”Archive Memory” on page 91).

  • Page 21: Finding The Correct Serial Port

    Weatherlink software package. 1. If necessary, disconnect the 40-foot WeatherLink cable from the DB9 or DB25 adapter which is connected to the COM port.

  • Page 22: Using The Software

    The software can support the use of any number of weather stations with a single version of the program. Each station must connect to its own WeatherLink, how- ever. If you have set up more than one station, whenever you load the software you will be prompted to open a station.

  • Page 23: The Toolbar

    S I N G T H E O F T W A R E The Toolbar O O L B A R The toolbar contains icons which activate program commands. The illustration below shows what commands are activated by the individual toolbar icons. Note that the Print icon only appears when you have a window which you may print open.

  • Page 24: New Station

    New Station Each station connected to the computer must have its own “station” within the software. This tells the software into which database new data should be saved, provides the necessary communication settings (serial port, IRQ, etc.), and other station-specific information. 1.

  • Page 25: Delete Station

    The software deletes the station and all related files. Download Downloading allows you to transfer weather data from the WeatherLink’s archive memory to the database stored on your computer’s hard disk. For information on the difference between the data in your archive memory and the data in your database, see “Archive Memory vs.

  • Page 26: View Log

    2. To begin the download, choose OK. The software will begin to download data. The software shows you the progress of the download in the form of a status bar and a text display of the number of records transferred so far and the total number of records to be transferred.

  • Page 27: Print

    S I N G T H E O F T W A R E Setup Menu Print To print the active program window, choose Print from the File menu or click on the Print icon in the toolbar. Specify printing options (for best results make sure Landscape mode is selected) in Windows’...

  • Page 28: Station Config

    Station Config You may enter information which will help to identify a particular station and select a number of station-specific settings. 1. Choose Station Config from the Setup menu or press Ctrl-C. The Station Configuration dialog box appears. 2. Enter the following information: Name Enter the desired station name in this text box.

  • Page 29: Serial Port

    3. When finished, choose OK. The software save the station configuration settings. Serial Port In order to communicate with the WeatherLink and station, you need to specify communications settings for the station. 1. Choose Serial Port from the Setup menu or press Ctrl-I.
  • Page 30 Baud Rate Unless you are using a modem which only operates at 1200 baud, leave the baud rate setting at 2400. Note: If you have a 1200 baud modem, you need to both flip this setting for the PC AND flip the dip switch setting on the data logger.

  • Page 31: Select Units

    S I N G T H E O F T W A R E Setup Menu Select Units You may select the units of measure in which data is displayed within the soft- ware. All program windows (bulletin, summary, plots, database, etc.) display data in the selected units of measure.

  • Page 32: Set Time

    Because changing time and date on the station can affect data in the WeatherLink’s archive memory, we recommend that you down- load data before setting the time and date and then clear your archive memory when finished.

  • Page 33: Set Archive Interval

    Setup Menu Set Archive Interval You may choose to store data to the WeatherLink’s archive memory at an interval of 1, 5, 10, 15, 30, 60, or 120 minutes. This interval is known as the archive interval. For information on archive memory and the effect that the archive interval has on the amount of data which may be stored in the WeatherLink’s archive memory,...

  • Page 34: Set Rain Cal

    2. Enter the correct barometric pressure and choose OK. The software saves the change in barometric pressure to both the console and the station’s configuration file. Set Rain Cal You may set the rainfall calibration number on your station console using the soft- ware.

  • Page 35: Set Hum Cal

    S I N G T H E O F T W A R E Setup Menu 1. Choose Set Temp Cal from the Setup menu. The Set Temp Cal dialog box appears. The raw reading shown in this dialog box indicates the unadjusted reading coming from the sensor. The adjusted reading indicates what the software displays, adjusted for any previously entered calibration number.

  • Page 36: Set Total Rain

    1. Choose Set Hum Cal from the Setup menu. The Set Hum Cal dialog box appears. The raw reading shown in this dialog box indicates the unadjusted reading coming from the sensor. The adjusted reading indicates what the software displays, adjusted for any previously entered calibration number.

  • Page 37: Set Alarms

    S I N G T H E O F T W A R E Setup Menu Set Alarms You may quickly set the alarm thresholds on the station console using the soft- ware. Consult your station manual for information on the available alarms and how they work.
  • Page 38 1. Choose Clear from the Setup menu. The Clear dialog box appears. 2. Indicate which high/low registers and/or rainfall totals you wish to clear by selecting the appropriate check box. You may quickly select all high/low registers and rainfall totals by choosing Check All.

  • Page 39: Auto Clear

    S I N G T H E O F T W A R E Setup Menu Auto Clear You may set up the software to automatically clear selected high/low registers and rainfall totals at a set time each day (the software must be running). For more information on how the Auto Clear feature works, see “Automatic Clear”...

  • Page 40: Auto Download

    Auto Download You may set up the software to automatically download data at specified times each day (the software must be running). For more information on how the auto- matic download feature works, see “Automatic Download” on page 92. 1. Choose Auto Download from the Setup menu or press Ctrl-J. The Auto Download dialog box appears.

  • Page 41: Auto Fax

    S I N G T H E O F T W A R E Setup Menu 4. To set the time(s) at which the selected station should be downloaded, choose Down- load At. The Download At dialog box appears. 5. Enter the following information: Download Times Select the hour(s) at which the software should automatically download information from this station by clicking on the desired hour in the list.
  • Page 42 1. Choose Auto Fax from the Setup menu or press Ctrl-X. The Auto Fax Settings dialog box appears. 2. Enter the following information: COM Port Enter the number of the COM port to which your fax modem is connected. Fax Phone # Enter the fax number to which you want the data sent.

  • Page 43: Reports Menu

    S I N G T H E O F T W A R E Reports Menu 4. When finished, choose OK. The software saves your Auto Fax settings. NOAA Setup The software will automatically generate reports similar to Monthly and Yearly NOAA (National Oceanic and Atmospheric Administration) ”weather watcher”...

  • Page 44: Noaa This Month

    State Enter the state name into the text box. If you wish, enter the country name as well. Elevation Enter the location’s elevation into the text box. Lat, Long Enter the location’s longitude and latitude into the text box. When enter- ing latitude, use negative numbers to represent southern latitudes.

  • Page 45: Noaa Summarize Month

    S I N G T H E O F T W A R E Reports Menu NOAA Summarize Month The software can automatically generate a report similar to monthly NOAA weather watcher reports using the information in your database and NOAA Setup information (see “NOAA Setup”...
  • Page 46 4. Choose OK. The NOAA Monthly Summary appears. General station information (Station Name, City, State, Units of Measure, etc.) appears at the top of the report. For each day in the report, you may view the following information (and a total for the month): Each row in the report shows information for a single day.
  • Page 47 S I N G T H E O F T W A R E Reports Menu Low & Time The low temperature for the day and the time at which it occurred. At the bottom of the column, the lowest temperature recorded during the month and the day on which it occurred is displayed.

  • Page 48: Noaa This Year

    NOAA This Year To quickly generate a NOAA yearly summary (see “NOAA Summarize Year” below) using all existing data for the current year, choose NOAA This Year or press F8. NOAA Summarize Year The software can automatically generate a report similar to yearly NOAA weather watcher reports using the information in your database and NOAA Setup information (see “NOAA Setup”...
  • Page 49 S I N G T H E O F T W A R E Reports Menu 4. Choose OK. The NOAA yearly summary appears. General station information (Station Name, City, State, Units of Measure, etc.) appears at the top of the report. Below that is the temperature summary section.
  • Page 50 S I N G T H E O F T W A R E Reports Menu Dep. From Norm The amount by which the mean temperature departed from normal for the month. At the bottom of the column, the amount by which the mean tem- perature departed from normal for the year is displayed.
  • Page 51 S I N G T H E O F T W A R E Reports Menu Below the temperature summary section, the rainfall summary section appears. For each month in the report, you may view the following rainfall information (and a total/average for the year): YR &...
  • Page 52 Days of Rain Over 1 (20) The number of days on which rainfall exceeded 1" (20 mm) during the month. At the bottom of the column, the number of days on which rainfall exceeded 1" (20 mm) during the year is displayed. Below the rainfall summary section, the wind summary section appears.

  • Page 53: Yearly Rainfall

    S I N G T H E O F T W A R E Reports Menu Yearly Rainfall You may generate rainfall reports which show rainfall totals for all years in the database and any years for which you want to enter your own data. The rainfall report database is kept separate from the station database, so you may alter rain- fall information in the rainfall database without affecting the station database.

  • Page 54: Degree-Days

    Degree-Days The software can calculate degree-days for an almost infinite number of plants, pests, etc. See “Degree-Days” on page 97 for a description of degree-days. 1. Choose PC Degree Days from the Reports menu or press Ctrl-G. The PC Degree Days list box appears. 2.

  • Page 55: Temp/Hum Hours

    S I N G T H E O F T W A R E Reports Menu Temp/Hum Hours You may track the number of hours temperature is above or below a certain threshold and humidity is above a certain threshold. See “Temperature/Humidity Hours”...
  • Page 56 3. After entering all necessary information, choose OK to view the temp/hum hours report. The software calculates and displays temp/hum hours information. The temp/hum hours report contains the following information: Name, Start Date, Thresholds The report shows the name, start date, and the thresholds you entered. Days Occurred The report shows the number of days on which temp/hum hours occurred.

  • Page 57: Soil Temp. Hours

    S I N G T H E O F T W A R E Reports Menu Soil Temp. Hours You may track the number of hours soil temperature is above a certain threshold. See “Soil Temperature Hours” on page 98 for a description of soil temperature hours.
  • Page 58 3. After entering all necessary information, choose OK to view the soil temperature hours report. The software calculates and displays soil temperature hours information. The soil temperature hours report contains the following information: Total The total number of soil temperature hours which occurred during the selected period of time.

  • Page 59: Chilling Requirement

    S I N G T H E O F T W A R E Reports Menu Chilling Requirement You may calculate chilling requirements by entering a start and end date and a temperature threshold. See “Chilling Requirement” on page 97 for a description of Chilling Requirements.

  • Page 60: Sunrise & Sunset

    Sunrise & Sunset You may calculate sunrise and sunset times for any location and date. 1. Choose Sunrise & Sunset from the Reports menu or press F2. The Sunrise & Sunset dialog box appears. 2. Enter the following information: Date Enter the date for the report.
  • Page 61 S I N G T H E O F T W A R E Reports Menu 3. After entering all necessary information, choose OK. The software calculates sunrise and sunset times and displays the informa- tion. The report contains the following information: Latitude/Longitude The report shows the latitude and longitude setting you entered.

  • Page 62: Windows Menu

    Sunrise The report lists the time at which sunrise (defined as the time at which the upper limb of the sun appears) occurs for each day in the report. Sunset The report lists the time at which sunset (defined as the time at which the upper limb of the sun disappears) occurs for each day in the report.

  • Page 63: Bulletin

    S I N G T H E O F T W A R E Windows Menu Bulletin The bulletin provides a graphic representation of current weather conditions (with the numeric reading displayed as well) which updates in real-time. For all bar graphs (outside temperature, for example), highs and lows are repre- sented by yellow lines which appear above the bar (high) or within the bar (low).

  • Page 64: Browse

    To start the bulletin, choose Bulletin from the Windows menu, click on the Bulletin icon in the toolbar, or press Ctrl-B. The software prompts you to indicate whether you want to download highs and lows. Choose Yes or No to continue. To view the Summary window which lists all current weather information (includ- ing the time and date at which highs and lows occurred) press Page Down or right mouse click in the bulletin window.

  • Page 65: Plot

    O F T W A R E Windows Menu Plot The WeatherLink software includes a powerful plotting engine which allows you to plot as many conditions as you want on a single plot. You can also save plots and plot templates for later viewing.
  • Page 66 S I N G T H E O F T W A R E Windows Menu To use the strip charts, choose Strip Charts from the Windows menu, click on the Strip Chart icon in the toolbar, or press Ctrl-S. The software automatically downloads data from the open station in order to fill out the entire strip chart.

  • Page 67: Summary

    S I N G T H E O F T W A R E Windows Menu Summary The summary shows a text table of all current conditions as well as the highs and lows along with the time and date at which they occurred. The information on the high/low summary is updated in the same way as the bulletin.

  • Page 68: Using The Browse Window

    S I N G T H E R O W S E The browse window allows you to view, edit, print, annotate, and export the raw data collected by the WeatherLink. Choose Date You may quickly view the records for any date in the database.

  • Page 69: Make A Note

    S I N G T H E O F T W A R E Using the Browse Window 2. Select the desired date from the list and choose OK. The software locates and displays the first record from the selected date. Make a Note You may add notes to any record in the database.

  • Page 70: Edit A Record

    Edit a Record You may edit the data contained in any record in your database. 1. To edit a record, double-click on the desired record in the Browse window (or select the desired record and choose Edit from the Browse menu or press Enter). The Edit dialog box appears.

  • Page 71: Delete A Record

    S I N G T H E O F T W A R E Using the Browse Window Delete a Record To delete a single record, select the desired record and press Delete or choose Delete from the Browse menu. The software prompts you to confirm that you wish to delete the record before it continues.

  • Page 72: Export Records

    Export Records You may export record information to a tab delimited export file which can be used in most database, spreadsheet, or word processing programs. 1. To export records, choose Export from the Browse menu. The software prompts you to select the records you want exported. 2.

  • Page 73: Delete Records

    S I N G T H E O F T W A R E Using the Browse Window Delete Records You may quickly delete a group of records. 1. To delete records, choose Delete Records from the Edit menu. The software prompts you to select the records you want deleted. 2.

  • Page 74: Using The Plot Window

    S I N G T H E O F T W A R E Using the Plot Window S I N G T H E L O T I N D O W The software includes powerful plotting capabilities which allow you to view and compare data in graphical format.

  • Page 75: Adding And Removing Variables

    S I N G T H E O F T W A R E Using the Plot Window Adding and Removing Variables Variables Box The variables box at the bottom of the screen makes it possible to add and remove variable with a click of the mouse. To add or remove a variable from a plot, click on the box next to the variable’s name in the variables box.

  • Page 76: Scroll Through Dates

    Scroll Through Dates You may use the scroll bar along the bottom of the strip chart window to scroll through data. Click the scroll arrows (or press the right or left arrow keys) to move the plot for- ward or backward one day at a time. If the plot span is less than a day, clicking this action moves the plot one span at a time.

  • Page 77: Enter Plot Title

    S I N G T H E O F T W A R E Using the Plot Window Enter Plot Title You may enter a plot title into the Plot Title text box at the top of the window. You may also choose Edit Title from the Options sub-menu in the Plot menu to move the cursor to the Title text box.

  • Page 78: Set Axis Min/Max

    Set Axis Min/Max You may set your own minimum or maximum for each axis by entering the desired number into the Axis Min/Max text box (the first and last numbers in the axis. You may also choose the desired Edit Min/Max option from the Options sub-menu in the Plot menu to move the cursor into the Min/Max text box.

  • Page 79: View Details

    S I N G T H E O F T W A R E Using the Plot Window View Details Click and drag to select a portion of the plot you wish to see in detail. The soft- ware will zoom in on that section of the plot, using the closest possible plot span. Zoom In/Out To “zoom in”...

  • Page 80: Plotting Data From More Than One Date (Overlay)

    Plotting Data From More than One Date (Overlay) The software features an “overlay” plotting mode which enables you to plot data from more than one day on a single plot. Overlaying is only possible when you have a single variable plotted. 1.

  • Page 81: Plotting Data From The Previous Year (Last Year)

    S I N G T H E O F T W A R E Using the Plot Window 5. To return to normal plot operation, Choose Overlay from the Plot menu (or press F9) to open the Overlay dialog box and choose Overlay Off. The software returns you to the Plot window.

  • Page 82: Plot Menu

    Open Template To open a previously saved plot template, choose Open Template from the File menu. Select the desired plot template in the Open dialog box and choose OK. Save Template To save a plot template, choose Save Template from the File menu. Enter the desired file name and choose OK.
  • Page 83 S I N G T H E O F T W A R E Using the Plot Window Choose Left/Right Variable To choose the information you want displayed on either axis, choose Choose Variable for the desired axis. A pop-up list appears next to the axis information button.

  • Page 84: Colors Menu

    Colors Menu You may change the color scheme used by the software in creat- ing strip charts and plots. To change the color used for the plot text, plot background, or any of the variables plotted by the soft- ware, choose the appropriate command from the Colors menu. The software opens Windows’...

  • Page 85: Using The Strip Charts

    S I N G T H E O F T W A R E Using the Strip Charts S I N G T H E T R I P The strip charts are four line graphs, stacked one on top of another, onto which you may plot any data contained in your database.

  • Page 86: Open Strip Chart Window

    Open Strip Chart Window To open the strip chart window, choose Strip Chart from the Windows menu, click on the Strip Chart icon in the toolbar, or press Ctrl-S. When you open the strip chart window, the program automatically downloads any data in the station’s archive memory.

  • Page 87: View Historical Data

    S I N G T H E O F T W A R E Using the Strip Charts View Historical Data You may use the scroll bar along the bottom of the strip chart window to view his- torical data on the strip charts. Clicking on the scroll arrows moves the strip chart forward or backward one day at a time.

  • Page 88: Opening A Previously Saved Strip Chart Template

    Opening a Previously Saved Strip Chart Template To open a previously saved strip chart template, choose Open Chart from the File menu and choose the desired strip chart template file. Strip Chart Menu The commands in the Strip Chart menu allow you to create strip charts and set various strip chart-related options.

  • Page 89: Colors Menu

    S I N G T H E E A R L Y The WeatherLink software keeps a separate rainfall database which enables you to view accumulated rainfall totals broken down by month and year. If you have existing data in your main weather database, the software will create the rainfall database using the data stored in your main weather database.

  • Page 90: Viewing The Yearly Rainfall Database

    Viewing the Yearly Rainfall Database To open the Yearly Rainfall Window, choose Yearly Rainfall from the Reports menu, click on the Yearly Rainfall icon in the toolbar, or press Ctrl-R. Note: The first time you attempt to open the rain database, the software will prompt you to indicate whether you want to create the rainfall database.

  • Page 91: Editing Yearly Rainfall Data

    S I N G T H E O F T W A R E Using the Yearly Rainfall Database Editing Yearly Rainfall Data You may edit the data for any existing year or add entire years of rainfall data. Edit Data for an Existing Year To edit data, double-click on any line in the rainfall database (or select the desired line and press Enter or choose Edit from the Rain menu).

  • Page 92: Deleting Data

    Add Data for an Entire Year To add a year to the rainfall database, choose Add from the Rain menu. The Add dialog box appears. Enter the year at the top of the box and the rainfall amounts for each month into the appropriate text box. When finished, choose OK to save.

  • Page 93: Start A New Rainfall Database

    E G R E E A Y S The instructions below explain how to use the WeatherLink Software’s degree- day reporting feature to track the development of crops and/or pests. For infor- mation on degree-days, see “Degree-Days” on page 97. In order to use degree- days, you must determine the developmental threshold(s) for the desired crop or pest.

  • Page 94: Adding A Degree-Day Total

    Adding a Degree-Day Total You need to enter a separate degree-day total for every individual crop, pest, etc. for which you want to track degree-days. 1. From the PC Degree-Days list box, choose Add. The PC Degree-Day Definition dialog box appears. 2.
  • Page 95 S I N G T H E O F T W A R E Degree-Days Degree-Day Calculation Method Choose the method by which degree-days are calculated. Growing Degree-Day “Cut-Off” Method The software uses the highest temperature and the lowest temperature for a given day to calculate the average temperature for that day.
  • Page 96 3. To add a note to this degree-day total, choose Notes. The software opens the note file for this degree-day total. You may enter any desired notes into this file. 4. To view total degree-days since the start date, choose Calculate. The software calculates the total degree-days since the start date and displays the number of accumulated degree-days and the degree-days left until the development total is reached.

  • Page 97: Opening A Degree-Days Total

    S I N G T H E O F T W A R E Degree-Days Opening a Degree-Days Total You may open a previously saved degree-day total to edit information, add notes, view degree-day totals, etc. 1. To open a degree-day total, double click on the desired total or select it from the list and choose Open.

  • Page 98: Deleting A Degree-Day Total

    Deleting a Degree-Day Total To delete a degree-day total, select it from the list and choose Delete. The software will prompt you to confirm that you want to delete the total before doing so. PC Degree-Day Report The software allows you to create reports on some or all of your degree-day totals. The report is opened into Windows Notepad from which you may copy or print the report information.
  • Page 99 S I N G T H E O F T W A R E Degree-Days Sort Select the sort order. You may sort by the number of degree days remain- ing until the development total (which will show the totals closest to the development total at the top of the report) or you may sort by name which will show totals in alphabetical order.

  • Page 100: Technical Reference

    At each archive interval the WeatherLink stores one record to archive mem- ory. The WeatherLink has room in the archive memory for approximately 1 day of weather data for each minute in the archive interval. For example, if you use the 1 minute archive interval, the WeatherLink may store approximately 1 day of data.

  • Page 101: Automatic Download

    O W N L O A D The automatic download feature allows you to specify the times at which you wish the WeatherLink Software to automatically download data from selected stations (see “Auto Download” on page 31). As long as the computer is on and the software is running, the software will prompt you (at the specified times) to indi-...

  • Page 102: Calibration Numbers

    A L I B R A T I O N U M B E R S To increase performance, the software maintains calibration numbers separately from the weather station. If you do not set calibration numbers from the software, the weather station and software will not “agree” on what the calibration number is.

  • Page 103: Station Configuration File

    E C H N I C A L E F E R E N C E Database Organization DEGDAYS The software automatically creates a DEGDAYS directory into which it stores all PC degree-day information. Station Configuration File When you add a station, the software creates a station configuration file (called “station.cfg”) in the station directory.

  • Page 104: Weather Data Calculations

    The Weatherlink samples the wind direction reading the same number of times per interval as temperature. If wind speed is greater than 0 when the Weatherlink samples wind direction, it places a “marker” into one of sixteen “bins” which cor- respond to the sixteen compass points.

  • Page 105: Temperature/Humidity Index

    (if available). If no earlier entry exists in the archive memory, the Weatherlink calculates dew point based on the current outside humidity and the average temperature.

  • Page 106: Rainfall

    In calculating both daily and yearly rainfall totals for the software, the Weather- link only checks the total rain register on the station. The Weatherlink compares the current total rain value to the previous total rain entry in the archive memory to determine the amount of rainfall which occurred during the interval.

  • Page 107: Soil Temperature Hours

    E C H N I C A L E F E R E N C E Weather Data Calculations Soil Temperature Hours Soil temperature hours may be used to monitor the relative portion of time that soil temperature is above freezing (or some other threshold) in order to select a time to plant.

  • Page 108: Modem String

    E, Q, and V strings. Note: If you use another communications program after using the modem with the WeatherLink Software, you may need to re-initialize the modem using the modem string expected by the other program.

  • Page 109: Command Line Options

    E C H N I C A L E F E R E N C E Command Line Options Sets the result code to verbal mode. &H1 Sets the modem for hardware flow control. Note that not all modems support hardware flow control.

  • Page 110: Importing Weatherlink Data Into Other Programs

    E A R O R R E C T I O N The weather stations which work with the WeatherLink software do not read Feb- ruary 29 (Leap Day). Therefore, you will need to correct your database during a leap year. The most important thing to remember is this: do not change the date on the weather station from the station itself.

  • Page 111: Computer Does Not Keep Track Of Leap Years

    E C H N I C A L E F E R E N C E Backing Up and Restoring Data Computer Does Not Keep Track of Leap Years If your computer does not keep track of leap year itself, follow the procedure below.

  • Page 112: Troubleshooting Guide

    To do this, you must remove all power to the weather station and then restart the weather station by restoring power (with the WeatherLink still attached). You should hear three beeps, each of which occurs when the weather station passes one of its diagnostic tests. The first beep occurs after approximately one second, the second after approximately 8 seconds, and the third after approximately 22 seconds.
  • Page 113 R O U B L E S H O O T I N G U I D E Program Problems The barometer graph on the bulletin does not “fill in” completely. Why? When you first load the bulletin, the only case in which the barometer graph will fill in completely is when you have data in your database for the span of the barometer graph (that is, the past six hours).

  • Page 114: Autofax Troubleshooting

    After successfully downloading, the data does not appear to be in my database. Where is it? The most distinct possibility in this case is that the time and date on your weather station are incorrect (this can often happen if you have a power out- age and forget to reset the time and date on the weather station) and therefore the data was written into the wrong month, day, and/or time.

  • Page 115: Changing Windows Communications Driver

    R O U B L E S H O O T I N G U I D E AutoFax Troubleshooting Changing Windows Communications Driver The WFXCOMM.DRV (supplied on the install disk) significantly improves Auto- Fax performance over the default Windows driver (COMM.DRV) on many sys- tems.
  • Page 116 Open Bulletin Station Window Download Strip Chart Window Main Program Window Ctrl-A ..Set Alarms Ctrl-B ..View Bulletin Ctrl-C ..Station Configuration Ctrl-G ..Degree-Days Report Ctrl-H .

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