Vaisala HMM213 - Manual (Page 25)

Chapter 5 __________________________________________________________ Serial Commands
Operating via the Serial Bus
SMODE Setting the Serial Interface
SMODE xxxx
xxxx = STOP, RUN or POLL
In STOP mode: measurements output only by command, all
commands can be used
In RUN mode: outputting automatically, only command S can
be used
In POLL mode: measurements output only with command
SEND. When in POLL mode, the output state is
changed as follows:
OPEN aa
SMODE xxxx
aa = address of the transmitter
xxxx = STOP, RUN or POLL
The OPEN command sets the bus temporarily in STOP MODE so that
the SMODE command can be given. For example:
>SMODE (which mode is in use at the moment)
Output mode : STOP
>SMODE STOP (setting STOP mode)
Output mode : STOP
>
OPEN & CLOSE
OPEN nn
nn = address of the transmitter (0 ... 99)
CLOSE
In STOP mode: command OPEN has no effect, CLOSE sets the
transmitter in POLL mode
In POLL mode: command OPEN sets the transmitter
temporarily in STOP mode, command CLOSE
returns the instrument to POLL mode
VAISALA _______________________________________________________________________ 25