Vaisala FS11P, User Manual

Page: 106 / 232

User's Guide _______________________________________________________________________
104 __________________________________________________________________ M211107EN-C
Initial Settings
By default the sensor is in a polled mode, in other words, a data message
is only sent when the host computer requests one with a special
command.
For e.g. troubleshooting purposes the sensor can also be used in an
automatic message mode. The automatic message mode transmits a new
ASCII data message through the serial line automatically. The interval
and message type can be changed by the user (the AMES command). In
addition, the baud rate of the serial line can be changed to other value,
and the data frame can be selected between 7 data bits, even parity, one
stop bit, and 8 data bits, no parity, one stop bit.
For use as an FS11P component after eventual troubleshooting the
default settings have to be restored.
The commands for changing the default settings are listed in Table 14
below. For details on the commands, refer to section List of Commands,
on page 111.
Table 14 Commands for Changing Default Settings
Operation Command
Baud rate selection BAUD
Polled or automatic mode, message type
setting
AMES
Sensor ID configuration CONF
Weather Parameters
PWD32 has also several changeable parameters, which control the
operation of the present weather algorithm and precipitation
measurement. The parameter values set at the factory have been tested
and found appropriate. Thus, they usually do not need to be changed.
There may, however, be conditions where other parameter values give
better results.
The commands for displaying and changing the parameters are listed in
Table 15 below.
Table 15 Commands for Displaying and Changing Parameters
Operation Command
Parameter listing WPAR
Parameter setting WSET