Vaisala HUMICAP HMT330 SERIES - Communicating with a Transmitter in POLL Mode; Close; Open

Chapter 4 ________________________________________________________________ Operation
VAISALA_______________________________________________________________________ 97
Communicating with a Transmitter in POLL
Mode
OPEN
When all transmitters on the RS-485 bus are in POLL mode the OPEN
command sets one transmitter temporarily to STOP mode so that other
commands can be entered.
OPEN [aa]
where
aa = Address of the transmitter (0 ... 255)
CLOSE
The CLOSE command switches the transmitter back to the POLL mode.
Example:
>OPEN 2 (opens the line to transmitter 2, other
transmitters stay in POLL mode)
>CRH (for example, calibration performed)
...
>CLOSE (line closed)