Vaisala GMP343 - Manual (Page 40)

User’s Guide ______________________________________________________________________
38 ___________________________________________________________________M210514EN-E
Open and Close
OPEN nn
nn=address of the transmitter (0...99)
The OPEN command sets the bus temporarily in STOP mode so that the
SMODE command can be entered.
CLOSE
In STOP mode: Command OPEN has no effect, CLOSE sets the
transmitter temporarily in POLL mode.
In POLL mode: Command OPEN sets the transmitter temporarily in
STOP mode.
Example:
>close
line closed
GMP343: 1 line opened for operator commands
>send
351.1 ppm
>smode stop
SMODE : STOP
>
Setting Echoing Mode
ECHO x
SAVE
x=ON/OFF (default ON)
In RS-232 mode the device echoes everything back to the user. In RS-485
mode echoing is automatically disabled.