Vaisala HMP228 User Manual
Page 65
HMP228 Transmitters
M210282en-A
Appendix 1: Serial commands
59
When asking the current address, no address number is given:
>ADDR <cr>
Address : 2 ? <cr>
RESET
Resetting the transmitter
RESET <cr>
Resets the transmitter. All settings that have been changed stay in the memory
even after reset or power failure.
Operation modes
SMODE
Setting the serial interface
SMODE xxxx<cr>
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 <cr>
SMODE xxxx<cr>
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 <cr>
which mode is in use at the moment
Serial mode : STOP
>SMODE STOP <cr>
setting STOP mode
Serial mode : STOP