Sdelay, Echo, Data recording – Vaisala MMT330 User Manual

Page 113: Nd data recording on pa

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Chapter 4 _________________________________________________________________ Operation

VAISALA _______________________________________________________________________ 111

Example (setting the output interval to 10 minutes):

>intv 10 min
Output interval: 10 min
>

SDELAY

With the SDELAY command you can set delay (response time) for user
port, or view currently set delay value. Adjusting the delay may be
needed when half-duplex communication (typically two-wire RS-485) is
used.

The delay value corresponds to tens of milliseconds (for example, 5 =
0.050s minimum answer delay). The value can be set between 0 ... 254.

Example:

>sdelay
Serial delay : 0 ? 10

>sdelay
Serial delay : 10 ?

ECHO

Use the ECHO command to set the user port echo. The command either
enables or disables echo of characters received.

ECHO [x]<cr>

where

x

=

ON (enabled, default) or OFF (disabled)

NOTE

When using the RS-485 interface with a 2-wire connection, always
disable echo. When using a RS-232, RS-422/485 4-wire connection,
LAN, or WLAN, you can enable or disable it as you wish.

Data Recording

Data recording function is always on and collects data automatically into
the memory of the device. If the optional data logger module is installed,
the transmitter uses it automatically. Recorded data does not disappear
from the memory when the power is switched off. Collected data can be
observed in a form of a graph in the graphical view of the display or it
can be listed out by using the serial line or MI70 Link program.

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