Vaisala PTB220 - Manual (Page 18)

U SER ' S G UIDE _______________________________________________________________________
12 ___________________________________________________________________ M210194 EN -A
Operating modes
The first thing to do is to select the desired sending mode for the
barometer. This is done with the command SMODE. There are
available the normal or the fast measurement mode or the pulse output
mode. These selections are made with MMODE and PULSE
commands.
SMODE Selecting the sending mode
SMODE x
where:
x = STOP, RUN, SEND or POLL
The SMODE command is used to set or inspect the sending mode of
the barometer. The PTB220 series digital barometers have four
sending modes: STOP, RUN, SEND and POLL.
In STOP mode (see page 43), after power-up the barometer outputs its
type and software version and then waits for further commands.
In RUN mode (see page 43), continuous outputting starts
automatically from power-up.
In SEND mode (see page 50) a single message is automatically output
after power-up.
POLL mode (see page 48) allows the communication with multiple
barometers or other digital instruments connected to one serial bus.
Echo is automatically off in the POLL mode.
Examples:
>smode
Serial mode
: STOP
>smode run
Serial mode
: RUN
>smode send
Serial mode
: SEND
>smode poll
Serial mode
: POLL
>smode stop
Serial mode
: STOP
>reset