Vaisala Drycap DMT152, Руководство пользователя

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5.4.6 Set Serial Line Operating Mode
Table 21 SMODE Command
Syntax Description
SMODE [xxx]
<cr>
[xxx]
= select the serial line interface mode:
• STOP
• RUN
• POLL
See Table 22 (page 43) for a description of the serial modes.
Table 22 Selection of Output Modes
Mode Measurement Output Available Commands
STOP Only with the SEND command. All (default mode).
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.
The polling mode can be used when more than one transmitter is connected to one serial bus.
When set to POLL state, the transmitters communicate one at a time when the specific
transmitter address is called on the serial line. See the descriptions of ADDR command ( Set
Transmitter Address (page 40) ) and OPEN command ( Opening the Transmitter in POLL Mode
(page 50) ).
Selected output mode will be activated at next reset or power up.
Example:
smode poll
Serial mode : POLL
5.5 Configuring Measurement Parameters
5.5.1 Enable or Disable Sensor Purge
You can temporarily disable the sensor purge function using the
XPUR
command. Note that
disabling the sensor purge will affect the measurement performance of the transmitter.
Chapter 5 – Serial Line Operation
43