Vaisala CL31, Руководство пользователя

Страница: 46 / 127

User's Guide ______________________________________________________________________
46 __________________________________________________________________ M210482EN-B
For data lines with low bandwidth, there is a short version of each
message. In the short version of message No.1, lines 3 and 4 are left
out. Correspondingly, in the short version of message No.2, lines 4
and 5 are left out. In the table below, the data message types are
summarized with the minimum bit rates and storage capacity. The
examples are divided into two measurement resolutions of 10 m and
5 m. They have different minimum reporting intervals, 2 s and
3 s.
Table 7 Messages with 10 m Resolution (Standard Mode)
Message
Number
and
Subclass Message Name Length
(bytes) Min bps
(2 s) Data/Month
(2 s) Min bps
(12 s) Data/Month
(12 s)
11 msg1_10x770 3956 28.8k 4890 MB 4800 815 MB
12 msg1_20x385 2031 14.4k 2510 MB 2400 418 MB
15 msg1_base 55 300 68 MB 300 11 MB
21 msg2_10x770 3993 28.8k 4940MB 4800 423 MB
22 msg2_20x385 2068 14.4k 2560 MB 2400 425 MB
25 msg2_base 92 600 114 MB 300 19 MB
Table 8 Messages with 5 m Resolution (High Resolution)
Message
Number
and
Subclass Message Name Length
(bytes) Min bps
(3 s) Data/Month
(3 s) Min bps
(15 s) Data/Month
(15 s)
13 msg1_5x1500 7606 28.8k 6267 MB 9600 1253 MB
14 msg1_5x770 3956 14.4k 3260 MB 4800 625 MB
15 msg1_base 55 300 45 MB 300 9 MB
23 msg2_5x1500 7643 28.8k 6230 MB 9600 1260 MB
24 msg2_5x770 3993 14.4k 3290 MB 4800 660 MB
25 msg2_base 92 600 76 MB 300 15 MB
The interpretation of the message lines is as follows:
1ST LINE
Example:
CLA10011
☺
↵
where
= Start-of-Heading character
CL = Ceilometers' identification string; always CL
A = Unit identification character 0 ... 9, A ... Z
100 = Software level ID 100 ... 999
1 = Message number; message without sky condition data
is = 1, with sky condition data is = 2