beautypg.com

Campbell Scientific CS135 Lidar Ceilometer User Manual

Page 44

background image

CS135 Ceilometer

36

LINE 4
SSSSSSSSSSSSSSSSSSSSSSSSSSSSS........(2048 x 5 bytes) CR LF

The two-way attenuated normalised backscatter profile
(100000·srad·km)

-1

unless otherwise scaled by the Attenuated_SCALE parameter. Each sample is

coded with a 20-bit HEX ASCII character set; msb nibble and bit first, 2's complement.

The profile is not corrected for the tilt angle.

CR LF

= Carriage Return + Line Feed



LINE 5
ETX CRC16 EOT CR LF

where

ETX = End-of-Text character
CRC16 (4 characters) = CRC16-CCITT Checksum
EOT

= End-of-Transmission character

CR LF

= Carriage Return + Line Feed

NOTE