Chapter 5__________________________________________________________________ Operation
VAISALA ________________________________________________________________________ 57
If the ID is defined, for example, as A, type the following:
>OPEN A
If the ID is defined but forgotten, type the following:
>OPEN * or OPEN ^C (^C = Ctrl + C)
If there are two or more different sensors connected to the same
RS-485 line, and if the sensors have the same ID, PWD22 can be
opened by typing the following command:
>OPEN PWD {id number}
PWD22 answers as follows:
LINE OPENED FOR OPERATOR COMMANDS
If no input is given within 60 seconds, PWD22 closes the line
automatically.
CLOSE
The CLOSE command is used for releasing the line to automatic data
messages or polling commands.
PWD22 answers as follows:
LINE CLOSED
Message Types
Message 2 is intended to be the standard present weather message.
The length of the STAtus Message 3 depends on the possible alarm
and warning states.
PWD22 adds frame strings to the polled and automatic messages. The
content of the frame strings is presented in the following:
PW id
message body
where
=
Start of heading (ASCII 1, non-printable character).
PW
=
Forward scatter sensor identifier.
=
Space character.
