XII. THE ULTIMETER 2000 SERIAL PORT
The
ULTIMETER
2000 provides a unique 4-mode serial port to facilitate
computer data logging and remote data reporting via telephone, modem,
or RF link. Each of the four modes can be accessed by pressing and
holding a combination of two keys, or by command into the serial port.
The following is a brief description, to provide an idea of the capabilities
of each mode. Complete details are available to programmers upon
request.
DATA LOGGING MODE
In Data Logging Mode, the instrument puts out a steady stream of
records, about one per second. Each record includes all current
readings including time and date. Key Combo: Press and hold
and
for 3 seconds to enter this mode.
PACKET MODE
In Packet Mode, the instrument puts out one record every five
minutes. Each record includes all current values, plus the highest
wind speed over the past five minutes with the associated wind
direction, the 3-hour barometric pressure change, station calibration
numbers, and current time and date. Key Combo: Press and hold
and
for 3 seconds to enter this mode.
COMPLETE RECORD MODE
In Complete Record Mode, the instrument puts out a steady stream
of records, about twenty per minute. Each record includes all
current values, 3-hr barometric pressure change, today's high and
low values, yesterday's high and low values, and long term high and
low values, station calibration numbers, and current time and date.
Key Combo: Press and hold
and
for 3 seconds to enter
this mode.
MODEM MODE
In Modem Mode, the serial port is kept in a receive mode with no
data output. It will accept commands to send a Complete Record,
set time and date, set barometer correction, set wind direction
correction, and reset all long term memory. Key Combo: Press and
hold
and
for 3 seconds to enter this mode.
NOTE TO SERIAL PORT USERS: It is essential to make the
correct Leap Year setting (see Section VI); otherwise, date
data from the serial port may be incorrect.
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