Vaisala HMT130 - Manual (Page 53)

Chapter 4 ________________________________________________________ Serial Line Operation
VAISALA ________________________________________________________________________ 51
ECHO
Use the ECHO command to enable/disable echo of characters received
over the serial line.
ECHO [x]
where
x = ON/OFF (default = OFF)
When using 2-wire connection, echo must be always disabled.
SMODE
Use the SMODE command to set the default serial interface mode.
SMODE [xxxx]
where
xxxx = STOP, RUN or POLL
In STOP mode: measurements output only by command SEND, all
commands can be used
In RUN mode: outputting automatically, only command S can be
used to stop.
In POLL mode: measurements output only with command SEND
[addr].
When several transmitters are connected to the same line, each
transmitter must be entered an own address in the initial configuration,
and POLL mode must be used.
SDELAY
Use the SDELAY command to set the answer delay (RS-485 turnaround
time) for the User Port.
SDELAY [delay]
where
delay = RS-485 turnaround time in milliseconds, range 0 ... 1000 ms.
Example:
>sdelay 100
Turnaround time : 100
>