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Smode, Addr, Table 26 – Vaisala MMT330 User Manual

Page 108: Selection of output modes

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User's Guide _______________________________________________________________________

108 __________________________________________________________________ M210764EN-F

SMODE

Use the SMODE command to set the user port start-up operating mode.

SMODE [xxxx]

where

xxx =

STOP, SEND, RUN, POLL, or MODBUS.

Table 26

Selection of Output Modes

Mode

Measurement Output

Available Commands

STOP

Only with the SEND command. All (default mode).

SEND

One measurement message
automatically at start-up, then
only with the SEND command.

All.

RUN

Automatic output.

Only command S.

POLL

Only with the SEND [addr]
command.

SEND [addr] and OPEN [addr].
Other commands available after
opening a line to the transmitter
using the OPEN command.

Use with RS-485 buses where
multiple transmitters can share
the same line.

MODBUS Must be read from the

transmitter using Modbus
protocol.

Modbus protocol only; see
Chapter 5, Modbus, on page 127.

Selected output mode will be activated at next reset or power up.

ADDR

Use the ADDR command to set the device address of the transmitter.
Addresses are required for POLL mode and MODBUS mode (serial
Modbus).

ADDR [aa]

where

aa =

Device address of the transmitter, range 0 ... 255 (default = 0)

Example (changing the transmitter address from 0 to 52):

>addr
Address : 0 ? 52
>