Campbell Scientific CS135 Lidar Ceilometer - Manual (Page 48)

CS135 Ceilometer
40
MESSAGE 004 (profile, sky condition, available in future OS)
LINE 1
SOH CS ID OS N ETX CR LF
where
SOH = Start-of-Heading character
CS = Always "CS"
ID(1 character) = A single ASCII character, 0-9, a - z or A - Z, case sensitive. Default ID = 0
OS (3 characters) = Operating system, 001 ... 999
N (3 characters) = Message number
ETX = End-of-Text Character
CR LF
= Carriage Return + Line Feed
LINE 2
S WA
9
tr
9
h1
9
h2
9
h3
9
h4
9
flags CR LF
where
S (1 character) = message status:
0 = No significant backscatter
1 = One cloud base detected
2 = Two cloud bases detected
3 = Three cloud bases detected
4 = Four cloud bases detected
5 = Full obscuration determined but no cloud base detected
6 = Some obscuration detected but determined to be transparent
/ = Raw data input to algorithm missing or suspect
WA (1 character) = Warning or alarm status:
0 = No alarm or warning
W = Warning
A = Alarm
tr (3 characters) = Window transmission, %
h1 (5 characters) = 1st Height
If detection status is 1, 2, 3 or 4 h1 = Lowest cloud base reported
If detection status is 5 h1 =
Vertical visibility as calculated
If detection status is 0 or 6 h1 = "/////"