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Weather Station - Model “PRO”
Nov., 2001 Page
58
Model “PRO”- Weather Station
Cozz GT27145B
it is the fourth time they have been
out.
COMPUTER MODEM AND
COMMUNICATION
TROUBLESHOOTING:
Weather Software will not commun-
icate with the weather station.
•
Verify all the wiring, etc., at the
computer, to the modem, and to the
field.
•
Be sure the software is configured to
the correct communication port
according to the type of MAXI
software being used for the system;
i.e., MAXI 5, NIMBUS or CIRRUS.
If you arrive at weather through
MAXI then the serial port is
configured through the MAXI
software.
•
A data line monitor may be
necessary to test the output from the
computer and to verify that the serial
port is working O.K. Most times
output can be verified, however,
with RAD Short Haul Modem or a
phone modem. A data line monitor
RS-232 Mini-Tester (available at
Radio Shack) is a device that
connects into the line with the serial
port and by using lights will show
the status of all the data lines.
•
It is important here to check the
communication serial port of the
computer and verify that it is
functioning correctly, just as is
required when troubleshooting
MAXI or MAXICOM.
TESTING THE SHORT HAUL
MODEM
For the older weather stations, which
used the RAD SH-6A Short Haul
Modems and the current “PRO” weather
stations, which use the RAD SRM-5A
Short Haul Modems - both of these
modems can be tested in the same
manner.
•
With the modem connected to the
computer, jumper the output
terminals of the RAD modem as
shown in FIGURE 25.
•
With the Rain Bird Weather
Software, go to the Main Menu and
set the “capital lock” on the keyboard
of the computer.
•
Be sure to configure a direct connect
weather station.
•
Press a capital [
W
] from the Main
Menu screen.
•
If a security number is asked for use
[
6275
].
•
Choose a direct connect station and
the screen will go “BLANK”.
•
Assuming you have connected the
output terminals of the modem as
shown in FIGURE 26, what you
type will be echoed back to the
computer screen. Testing the Short
Haul Modem in this way will verify
that it is working properly. If you
do not see the characters, that you
type, on the screen then the Short
Haul Modem has a problem and
needs to be replaced.
If you have the very old type Short Haul
modem - it should be replaced with the