Vaisala PTU200 Series Guia do Utilizador descarregar pdf (Página 58)

USER'S GUIDE_______________________________________________________________________

54 ___________________________________________________________________ M210195EN-A

Address : 7 <cr>

>smode poll <cr> (select the POLL mode)

Serial mode : POLL

>reset <cr> (resetting will activate the new ettings)

(no title will appear after reset in POLL mode)

send 7 <cr> (text invisible)

1013.25 hPa

The next picture (below) shows typical RS485/422 differential input

signals RS485/422 LO (upper signal) and RS485/422 HI (lower

signal) at baud rate 9600. The vertical scale is 2V/div for both signals.

The ground level for each signal is shown with a small arrow at the

right. At the left the signals are at rest.

The next picture (below) shows typical RS485/422 differential output

signals RS485/422 LO (upper signal) and RS485/422 HI (lower

signal) at baud rate 9600. The vertical scale is 2V/div for both signals.

The ground level for each signal is shown with a small arrow at the

right. At the left the signals are at rest.

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Vaisala PTU200 Series Guia do Utilizador Página 58