DAVIS WeatherLink for Alarm Output Add. User Manual
WeatherLink® for Alarm Output
Addendum
Introduction
This Streaming Data Logger is designed to provide an electrical interface
between a Vantage Pro2™ , Vantage Vue
tion 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 Pro2 Serial version. Please consult the WeatherLink for Vantage Pro2
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 Pro2 or Vantage Pro console,
use the notch in the battery door located adjacent to where the PC connec
tor protrudes and above the AC power connector to bring out the Connector Block wire.
®
, or Vantage Pro® weather sta-
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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 connec
tor facing you and loop the Connector Block wire around the data logger
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 a Serial-to-USB
adapter (Davis part # 8434) connected to a Windows PC
• Computer running Windows XP®, Vista®, or 7 with at least 3 MB
free of RAM and 512 KB free of hard disk space
• Small slotted screwdriver
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• (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 conta
erLink if you ever need to in
stall the program manually.
Running the Configuration Software
To run the configuration software, double-click on the Streaming Data Utility
in the Streaming Data Utility directory of the WeatherLink directory or
icon
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
which your streaming data logger is connected.
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
antage console, and in
your V
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.
ins this program as well as Weath-
the serial port to
Note: If you have more than one streaming data logger connected to your system, it is highly recom-
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mended 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 a
n 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 th
e dialog box. Press Cancel to exit
the dialog box and preserve the original settings.
Note: Once communications with WeatherLink software 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 Weath
erLink, you should communicate using the Streaming Data Utility first.
Station Configuration
Before setting alarms, use this function to indicate what sensors you have
wit
h your Vantage Pro2 or Vantage Pro system. The Configuration Utility
uses your choices to determine what parameters to show in the list. (You
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can only enter this dialog box when no alarms are set. This prevents you
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.
Note: If you have a Vantage Vue or Vantage Pro2 set to Vantage Pro. (The Alarm Output data logger
makes no distinction between Vantage Pro2, Vantage Pro or Vantage Vue.) If you have a
Vantage Pro2 Plus, set to Vantage Pro Plus.
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
emperature/Humidity Station.
T
The temperature and humidity readings are numbered according to their
n transmitter ID. So, for example, if you have an ISS on Transmitter
statio
ID # 1 and a Temperature/Humidity Station on ID # 3, 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
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and Humidity sensors because they always appear under “Outside Temperature” and “Outside Humidity” in th
e parameter pick list.
Units
Next, select the units of measure in which data is displayed within this
Config
uration 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.
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