Pressing F6
will graph the data, if you have a VGA monitor.
Pressing F7
will take the current binary data file and convert it to a text file. The text file will be
named
prn_day.???
for the minimums and maximums and
prn_rec.???
for the record. The
extension of the files will correspond with the ID number of the weather unit whose record is being
converted.
Pressing F8
will display the version number of the firmware in the WRL.
Pressing F9
will set the weather station time to match that of the computer.
Pressing F10
will exit the program.
Direct data retrieval from a DOS prompt may be accomplished by entering
TWI_LOG ?
/
dl
, where
the ? equals the line of the unit as defined in the twi_com.dat file. For example entering
TWI_LOG 1
/dl
would access in our current setup the
Green
unit. Entering
TWI_LOG 2 /dl
would access the
Red
unit. After the data is retrieved the program will return to the DOS prompt. For automatic data
retrieval of multiple units at a predetermined time a commercial PC scheduling program may be
use.
You may look at data that is stored on disk even if you are not tied directly to that weather station by
entering TWI_LOG /ixxx where xxx equals the ID number of the unit (the unit ID may be set using
the F5 function key within TWI_LOG). At the DOS prompt TWI_LOG /I135 would access the data
for unit 135.
REFERENCE
Control Options
Control options can be changed through the print set routine, see page 12 for directions on
changing this number. These control options can also be changed through the TWI_LOG program
F5 screen. The first control option is wind speed scale. When turned on, the wind speed is in knots
instead of the normal mile per hour or kilometer per hour when in metric scale. The second control
option selects the manner in which the time is displayed. 24 hour military style or the AM PM format.
When on, the AM PM style is displayed. Aux display disable is the third option, when it is on the
temperature display cycles between the indoor and outdoor values only. If you do not have options
such as aux temperature or solar radiation aux display disable should be turned on. Instant wind
speed output is the fourth option. When turned on the windspeed output to the RS-232 port is an
instant reading rather than a one minute average.
To turn on the desired control options via the weather station display, refer to the table below, add
up the values of the controls that should be turned on and enter that value into the weather
instrument via the print set function (
). The default value is 224. For example if you
wanted AM PM turned on and instant wind speed output turned on you would add 32+128 which
equals 160. Enter 160 into the weather instrument via the print set function.
Option
Value
WRL Instruction Manual
Texas Weather Instruments, Inc. WRL Instruction Manual