Vaisala HMP230 User Manual
Page 102
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HMP230 SERIES
Appendix 1: Serial commands
M210225en-B
96
When more than one transmitter is connected to the same serial bus, the POLL
mode makes it possible to communicate with the transmitters. For example, a
relative humidity calibration is performed at transmitter 2 (<bel> = ASCII 7):
>OPEN 2 <cr>
<cr><lf>
'HMP
nn
line
opened
for
operator
commands'
<cr><lf><lf><bel>
>CRH <cr>
...
>CLOSE <cr>
<cr><lf> 'line closed' <cr><lf>
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