Campbell Scientific CS125 Present Weather Sensor - Manual (Page 39)

User Guide
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User Alarm 2 distance = 10000 metres
Serial baud rate 2 (=38400Bd)
Serial number = 1009
Visibility Units = M
Continuous mode output interval = 30 seconds
Polling mode = 0 (continuous mode)
Message format = 2 (full message)
RS232 or RS485 serial communications = 1 ( RS485)
Averaging period = 1 minute
Sample timing = 1 sample per second
Dew heater override = 0 (CS125 will automatically control the dew heaters)
Hood heater override = 0 (CS125 will automatically control the hood heaters)
Dirty window compensation = 0 (dirty window compensation off)
CRC checking on received commands = 1 (CRC checking enabled)
Sensor power down voltage = 11.5V
Checksum = D4FD
14.4 The POLL command
– Polling the CS125
The POLL command requests the current visibility and/or alarm conditions from
the CS125. The output format of this command depends on how the CS125 is
configured using the SET command or the menu interfaces.
The POLL request
POLL transmitted data
Example Description
0x02
(1)
STX, ^B
(2)
POLL POLL
: Delimiting character
0 Address based on Sensor ID
: Delimiting character
0 Reserved for future use, zero default
: Delimiting character
XXXX Checksum (3)
: 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.
(3) Not case sensitive.