Campbell-scientific CS125 Present Weather Sensor Manual de usuario descargar pdf (Pagina 39)

User Guide

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

Delimiting character

Address based on Sensor ID

Delimiting character

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.

1 2 ... 34 35 36 37 38 39 40 41 42 43 44 ... 65 66

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Campbell-scientific CS125 Present Weather Sensor Manual de usuario Pagina 39

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