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Wat11 message, Missing readings – Vaisala WS425 User Manual

Page 46

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USER'S GUIDE____________________________________________________________________

46 __________________________________________________________________ M210361EN-E

WAT11 Message

The fixed length format of the WAT11 message is defined as follows:

where

=

Start of text character (1 digit)

=

Sensor identification character, for example, A
(one digit).

=

Wind speed (in m/s) multiplied by 10, for example,
045 is 4.5 m/s (three digits).

=

Wind direction with two octal numbers for 6-bit
binary data, for example, 45

8

= 37

10

corresponds to

37/64*360 = 208 degrees

The WAT11 polling command is defined as follows:

where

=

Escape character ASCII 27H

=

Sensor ID, for example, A.

Missing Readings

The WAT11 message reports missing data as slashes (/////).

NOTE

The sensor has a 20 ms timeout in receiving characters. Therefore,
polling strings should be transmitted by a programmable device, not as a
user command via terminal sessions.