1-Wire Weather Station
Thank you for purchasing the 1-Wire Weather Station. You will need at
minimum one 1-Wire Weather Sensor, a HA3 or HA4 Host adapter, and the
OneSix server software. Most packages will include multiple 1-Wire Weather
Sensors, an intermediate cable; a mast mounted junction box and Weather
View 32 Software. This documentation will assume that you have purchased
the complete package.
The 1-Wire Weather Station™ has several unique
qualities because it utilizes the Dallas Semiconductor 1-Wire Microlan™.
The 1-wire system does not require external power supplies, all power is
supplied by the PC RS-232 Port. All 1-Wire Weather Sensors are intelligent
digital devices that have calibration information, unique serial numbers
and sensor type information stored in the memory of each sensor. Up to 100
sensors (depending on the type sensor and length of the cable) can be
attached anywhere into the 1-Wire Microlan (a twisted pair cable).
Data is made available via a DDE link. Any Windows®
application that can use DDE can obtain this data from the OneSix™ Server.
Examples of such applications include Weather View 32, Microsoft® Office
products like Word® & Excel®, Wonderware® Intouch, National Instruments®
LabView® & LookOut®, Capital Equipment Corp.® TestPoint, general
development applications like Microsoft® Visual Basic and Borland® Delphi.
This system allows you to run several software packages at the same time,
all reading from one set of weather sensors.
We strongly suggest that all the 1-Wire Weather
Station Sensors, intermediate cable, junction box and host adapter be
connected to your PC, and that your software be installed on your computer
and tested prior to the installation of your sensors on the roof, so that
you may become familiar with the operation of this equipment.
The 1-Wire Weather Station uses multiple sensors to
gather weather data. The wind direction and speed sensor, the
temperature/humidity pagoda, the solar radiation/leafwettnes sensor,
lightning sensor and the rain collector are designed to mount to a
television type mast (not provided). The barometric pressure sensor is
designed to be inside; plugged into the host adapter. Also plugged into
the host adapter will be with the red intermediate cable that goes to the
roof sensors. (Note: the pressure sensor must be plugged into the host
adapter with the TWI dropping adapter in line or the pressure sensor will
C A U T I O N !! :BE EXTREMELY CAREFUL NOT TO TOUCH ANY HIGH POWER
LINES DURING INSTALLATION OF THE VARIOUS SENSORS!!!
The wind direction and speed sensor is normally
mounted on television type antenna masts. For best results the wind · ·
sensor should be mounted twenty feet above the roof of the building. The
higher the installation, the more accurate the readings. The wind
direction sensor is calibrated at the factory and should be installed with
the wind sensor arm pointed to the North. If you are unable to point the
wind sensor arm to the North you can change the wind direction offset in
the OneSix server INI file. Plug the wind sensor RJ11 connector into the
mast mounted junction box (if present).
The TWI Lightning Sensor must be mounted at the top of a grounded mast.
The taller the mast and the better the earth grounding the further away
lightning can be detected. A detection range of over 200 miles can be
achieved depending on the installation.
Mount the Lighting Sensor one inch below and 180 degrees away from the
wind sensor (refer to figure A) in order to gain the maximum distance
between the two sensors. The top of the Lightning sensor must not be below
any part of the grounded mast, doing so will shield the sensor from
detecting lightning from that direction
The outside temperature/humidity pagoda should be mounted about two feet
under the wind sensor. Again we suggest a twenty-foot mast for commercial
installations to overcome the artificially high readings generated by a
hot roof. Plug the temperature/humidity pagoda cable into RJ11 connector
in the junction box.
The solar/leafwettness sensor must be pointed South and must be free of
shadows created by the other sensors (near the top of the mast is normally
the best). Take care that the sensor is perfectly level. Run the solar
sensor cable to the junction box and plug it in to RJ11 connector.
The rain collector is normally mounted on the mast. It should be mounted
as low as possible to reduce windage and to limit movement of the mast,
which can cause false readings. The collector should be mounted in a
manner that allows rain to enter the collector unencumbered by surrounding
obstacles. Use a bubble level to make sure that the collector is perfectly
level with the ground. Failure to level the collector will cause
inaccurate rainfall readings. The rain collector has one cable that must
be connected to the junction box.
Mount the junction box under the rain collector using the hose clamps that
are installed on the box (see figure 1). Remove the front cover of the
junction box, inserting the connectors from the sensors and intemediated
cable through he hole in the bottom of the junction box and then out of
the front of the box. Plug all the sensor connectors in the junction box
being careful not to plug the sensor cables into the larger red color
coded RJ-45 intermediate connectors
The intermediate cable (red) should be plugged in to one of the junction
box RJ-45 intermediate connectors (color coded red), then run into the
building where the PC is located. Pull the excess cable out of the j-box.
Carefully seal the bottom hole in the box from the inside by using the
plumber’s putty provided to keep bugs out. Be sure and replace the rubber
gasket on the junction box so that it can remain watertight. If you do not
properly put the j-box cover and seal on, the j-box will leak water and
the system will fail. It is a good idea to avoid running the intermediate
cable close to noisy devices such as florescent lights and electric
motors. Plug the red intermediate cable RJ-45 connector into the host
adapter (HA3 or HA4) and then attach the host adapter to serial port on
the PC. If you have a barometric pressure sensor, plug it also in to the
host adapter making sure that the TWI dropping adapter is in line. Your
hardware is now installed, go to software installation.
We strongly suggest that all the 1-Wire Weather Station Sensors,
intermediate cable, junction box and host adapter be connected to your PC,
and that your software be installed on your computer and tested prior to
the installation of your sensors on the roof, so that you may become
familiar with the operation of this equipment.
Find the diskette that is labeled OneSix Server. The OneSix Server is also
available via the internet at www.pointsix.com. Plug all of your hardware
in to your computer (through the J-box if supplied) then install the
OneSix server software. The default folder for the OneSix server is c:\onesix
(if you put OneSix server into any other folder, Weather View will not be
able to find the server). Click onto the OneSix server icon and load.
OneSix Server will search the 1-Wire Microlan for sensors and then write
to the Onesix.ini file recording your configuration.
To make a DDE link into another program such as Word 97, click on the
OneSix DDE Server button. Then click on DDE Variables in the OneSix
Server. Highlight the sensor description that you desire and click copy
link. Switch to Windows 97, go to edit, then paste special and click on to
paste link. Your data for that sensor should now be in your Word document.
For more information on the OneSix server go to the OneSix manual.
Assuming that the OneSix Server has been installed on your hard drive, use
Windows Explorer to go to the onesix folder and click on to Onesix32.pdf
or click on the OneSix Server icon in your startup menu.
Weather View 32
Make sure that you have already installed the OneSix server program on you
computer, then using the Weather View 32 CD, install Weather View 32. The
OneSix server is a program that runs the 1-Wire Microlan and provides data
to the Weather View 32 program via a DDE link. Weather View will
automatically load the OneSix Server software.
The only sensor that must be calibrated is barometric pressure. Obtain the
correct local pressure from a reliable source such as a weather radio or
TV Station, go into the setup menu, then weather station properties and
change the offset. For more information on Weather View 32, refer to the
Weather View 32 manual.
Screw Connector PIN
5-16 V DC
5-16 V DC
FCC RADIO FREQUENCY INTERFERENCE STATEMENT
NOTE: This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15, Subpart B, of the FCC
Rules. This equipment generates, uses, and can radiate radio frequency
energy. If not installed and used in accordance with the instructions, may
cause interference to radio communications.
The limits are designed to provide reasonable protection against such
interference in a residential situation. However, there is no guarantee
that interference will not occur in a particular installation. If this
equipment does cause interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is
encouraged to try and correct the interference by one or more of the
· Reorient or relocate the receiving antenna of the affected radio or
· Increase the separation between the equipment and the affected receiver.
· Connect the equipment and the affected receiver to power outlets on
· Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by Texas Weather
Instruments, Inc. could void the user's authority to operate the