DAVIS WeatherLink Instructions d'installation et d'utilisation

WeatherLink®for Alarm Output

Addendum

Introduction

This Streaming Data Logger is designed to provide an electrical interface

between a Vantage Pro™ or Vantage Pro2™ weather station console or

Weather Envoy™ and an electrical device. You may set a series of

thresholds for various parameters that will trigger if any of them are met (OR

condition), all of them are met (AND condition), one and only one is met

(XOR condition). You may also test whether a parameter is within (between

condition) or outside of (not between condition) a certain range, or changing

at a certain rate (trending), or how far apart (or close) two like parameters are

from each other. Finally, you may also test various parameters to see if they

are reporting a valid number. This can be used to signal a bad data

connection or malfunctioning sensor.

This product also contains the functionality of the WeatherLink for Vantage

Pro Serial version. Please consult the WeatherLink for Vantage Pro Getting

Started Guide and on-line Help files for information on the use of the

WeatherLink program (including its hardware requirements and typical

installation), package contents, and optional accessories for this product.

If you plan to install this product in a Vantage Pro or Vantage Pro2 console,

use the notch in the battery door located adjacent to where the PC connector

protrudes and above the AC power connector to bring out the Connector

Block wire.

If you plan to install this product in a Weather Envoy, it is recommended that

you knock out the left-most tab with the Weather Envoy’s PC connector

facing you and loop the Connector Block wire around the datalogger

connector to the Weather Envoy and bring it out where this tab was removed.

Hardware Installation and Requirements

In addition to the requirements for WeatherLink, the Alarm Output capability

of this product has the following additional hardware requirements.

•One Free Serial Port or One Free USB port with the Serial to USB

adapter (Part # 8434) connected to a Windows PC.

•Computer running any version of Windows with at least 3 MB free of

RAM and 512 KB free of hard disk space.

•Small Slotted Screwdriver

•(Optional) Relays: You may need to obtain relays in order to switch

equipment at voltages higher than 28 Volts or power levels above 10

Watts. Not available from Davis Instruments.

Note: Due to its normal operation, this product will draw more current from

the console and Envoy than in typical use. Davis recommends you use the

power adapter provided with your product if you are concerned about battery

life. Additionally, you can optimize battery life by setting your outputs to

normally open, particularly those you do not plan to use.

Software Installation and Setup

Installing the Software

Follow the installation instructions for WeatherLink. This will also install the

configuration software. The install file contains this program as well as

WeatherLink if you ever need to install the program manually.

Running the Configuration Software

To run the configuration software, double-click on the Streaming Data Utility

icon in the Streaming Data Utility directory of the WeatherLink directory or

select the Streaming Data Utility from the Start Menu under the WeatherLink

directory.

Finding the Correct Serial Port

The configuration software includes a procedure for locating the serial port to

which your streaming data logger is connected or determining whether that

serial port is working.

Use the Serial Port Settings dialog box to select the correct COM port and

baud rate to communicate to the streaming data logger. The correct baud

rate will be the one set in your Vantage console, and in WeatherLink. The

default value is 19200 baud. You may manually set the COM port setting or

use the Auto Detect button to automatically find where your streaming data

logger is connected.

Note: If you have more than one streaming data logger connected to your

system, it is highly recommended that you manually set the Com Port and

Baud Rate.

Logger Type

The software indicates the logger type and firmware revision level of the

streaming data logger in the logger type box.

Time Out Period

The Alarm Output data logger will always hold an attached device in the

appropriate state (On or Off) as dictated by the alarm settings. However, the

Alarm Output data logger utilizes a time-out period for ceasing checking the

alarm conditions whenever software attempts to communicate to the logger.

The default and minimum setting is 5 seconds. Once the time out period

ends, the data logger will again check the alarm conditions to determine

whether to leave an output open or closed. You may adjust this value if you

want the alarm checking functions to resume later after communicating to the

logger using WeatherLink or the Streaming Data Utility.

Press OK to configure this setting in the dialog box. Press Cancel to exit the

dialog box and preserve the original settings.

Note: Once communications to WeatherLink are initiated and successful, the

streaming data logger will be unable to communicate with the Streaming

Data Utility until the Time Out Period expires. If you need to communicate to

the logger with both the Streaming Data Utility and WeatherLink, you should

communicate using the Streaming Data Utility first.

Station Configure

Before setting alarms, use this function to indicate what sensors you have

with your Vantage Pro or Vantage Pro2 system. The Configuration Utility

uses your choices to determine what parameters to show in the list. Note

that you can only enter this dialog box when no alarms are set. This

prevents a user from hiding a parameter that is set as an alarm condition.

Selecting Vantage Pro Plus automatically checks the Solar Radiation and UV

check boxes. You can also check them separately.

The Leaf Wetness, Soil Moisture, Leaf Temperature, and Soil Temperature

selections refer to the sensors on the Leaf & Soil Moisture Temperature

Station or Soil Moisture/Temperature Station. Temp 1, Temp 2, Humidity 1,

Humidity 2 refer to the sensors on the Wireless Temperature or Wireless

Temperature/Humidity Stations. Indicate the sensor by selecting the number

that corresponds to the transmitter ID on your Wireless Temperature or

Temperature/Humidity Station. Please note that the Alarm Output data

logger makes no distinction between Vantage Pro and Vantage Pro2.

The temperature and humidity readings are numbered according to their

station transmitter ID. So, for example, if you have an ISS on Transmitter ID

# 1 and a Temperature/Humidity Station on ID # 4, and a Temperature

Station on ID # 2, you would check the following dialog boxes in the example

shown below. There is no need to indicate your ISS Temperature and

Humidity sensors because they always appear under “Outside Temperature”

and “Outside Humidity” in the parameter pick list.

Units

Next, select the units of measure in which data is displayed within this

Configuration Utility software. Choosing units of measure in this software

does not affect the units of measure displayed on the console, which may be

changed independently of this software.

You may select from the following settings:

Temperature:

Fahrenheit (°F) or Celsius (°C)

Note: Wind chill, dewpoint, degree-days, and temperature indexes are all

displayed in the same unit of measure as temperature.

Barometer:

Inches of Hg (in), Millimeters of Hg (mm), Millibars (mb), or HectoPascals

(hPa).

Wind Speed:

Miles per Hour (mph), Knots (knot), kilometers per Hour (km/hr), or Meters

per Second (m/s)

Rain:

Inches (in) or Millimeters (mm)

After selecting units of measure, select OK.

The Configuration Utility saves your choices. All information is displayed in

the units of measure you selected.

Output Test

Pressing the Output Test button puts the Alarm Output data logger into

Output Test mode. In this mode, all other functions of the data logger cease.

Do not press this button unless you wish to perform a test because it may

disrupt the behavior of your connected electrical device.

This function is used to test the output of the Alarm Output data logger. Push

the button of the output you want to test. The button will be depressed to

indicate Closed circuit mode and raised to indicate Open circuit mode. To

utilize this function effectively, you will need to connect a device to the

appropriate output so that you can tell when it is turning on or off.

You can connect an ohmmeter to the outputs and see if the output changes

state (low for closed or high for open). You may also connect your electrical

device to one or more of the outputs. You can check to see if the unit runs

with the Output circuit closed or fails to run with the Output circuit open.

To leave this mode, simply exit the dialog box by pressing the OK button.

Alarm Logging

Select the checkbox “Enable Alarm Logging” to enable logging of alarm

events.

Press Download Logs to retrieve a log of alarm events. The program will

write to a file named Alarm Download XX-XX-XX.txt where XX indicates the

month, day and year, respectively. This file will be located in the Streaming

Data Utility directory under your WeatherLink directory. When download is

complete, the text file will automatically open.

The log will consist of which output became active, which parameters caused

the alarm to become active (useful for the AND type alarm) along with the

date and time that the alarm became active. This log is cleared whenever

any of the output alarms are cleared.

Press Clear Logs to erase any logged alarm events.

Due to an undetermined bug in the firmware, duplicate alarm event logs may

occur if many parameters are logically grouped together or if you are using

pulse activation mode.

Advanced

Alarm Duration

Use this function to determine how long this alarm output should stay active

once it is triggered. The default value is 10 minutes. Frequent

communication with the data logger will cause this function to run long.

Alarm Reactivation

Use this function to determine how long to leave this alarm output

deactivated once it is deactivated. The default value is zero. Frequent

communication with the data logger will cause this function to run long.

Pulse Width

This function determines the pulse width for any of this selected output.

When Continuous Activation (see below) setting selected, this value is zero.

In the case of consecutive pulses, it also determines the time between

pulses. In most cases, there is no need to alter this value unless directed to

do so by the manufacturer of the electrical device you plan to connect to the

Alarm Output data logger.

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