CS120A and CS125 Visibility and Present Weather Sensors
44
0010
Sensor serial number
0008
Dirty windows values
0004
System alarms
0002
User alarms
0001
Averaging duration
121C
Sum for MSGSET message
The hex value is the hexadecimal sum of the hex values of the chosen fields (in
bold text).
The message sent is:
The response is:
In this case “7067” is the checksum
14.4 The GET Command
The GET command retrieves settings data from the sensor, including message
format data and user alarm settings amongst others. This command does not
retrieve visibility or environmental information from the sensor. To retrieve
visibility data refer to the POLL command.
The GET command
GET command transmitted data
Example
Description
0x02
(1)
STX ^ B
(2)
GET
GET
:
Delimiting character
0
Address based on Sensor ID
:
Delimiting character
0
Reserved for future use, zero default
:
Delimiting character
XXXX
Checksum
:
Delimiting character
0x03
(1)
ETX ^ C
(2)
0x0D
(1)
Carriage return
0x0A
Line feed
(1)
These values are shown in hexadecimal format not ASCII.
(2)
As entered on a keypad
MSGSET:0:161C:9794:
161C 7067