DAVIS WeatherLink for Windows 7862, Руководство по началу работы

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14
Troubleshooting Guide
Communications Problems
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Why can't the WeatherLink software communicate with the data logger and station?
If you are having trouble establishing communication between the weather
station and WeatherLink, start by checking the weather station's own
diagnostics. Remove all power to the weather station and then restart it by
restoring power with the power adapter (with the data logger still attached).
Leave the battery backup unplugged.
• You should hear three beeps, each of which occurs when the weather
station passes one of its diagnostic tests. Each beep follows the previous
after about one second. The first beep tells you the processor is running.
The second beep will be for the display and the third beep for the data
logger (if installed). If you do not hear one or more of these beeps, con-
tact Davis Instruments. (You’ll only hear two beeps if you don’t have
the data logger installed.) After hearing three beeps, plug in the backup
battery.
• If you hear all three beeps, See “Communication Port Settings” on
page 10 for instructions on checking your standard serial ports. If this
identifies a serial port other than the one you selected in station setup,
try connecting to the data logger again.
• Make sure you are using the black serial port adapter supplied with
WeatherLink # 7862.
• Check the switch setting on the data logger. It will be set to either 1200
or 2400 Baud.
If you still cannot connect or if the loopback test identifies the serial port
you already have selected, eliminate the following possibilities.
• You have a hardware device conflict.
Check the device manager tab in the Windows® system properties
dialog box to ensure that Windows recognizes your COM port.
Consult your computer’s documentation to see how to access the
system properties dialog box.
• Your serial port uses a non-standard device name.
• WeatherLink recognizes serial ports named COM1 through COM18
only.
• Your serial port is defective.
• The loopback connector or the WeatherLink adapter plug is bad.
If you have questions on how to proceed, contact your PC vendor or PC
technical support.