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Communicating with the cs725, 1 general, 2 auto baud rate detection – Campbell Scientific CS725 Snow Water Equivalency Sensor User Manual

Page 12: 3 main cs725 menu, General, Auto baud rate detection, Main cs725 menu

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CS725 Snow Water Equivalency Sensor

When the power is applied to the CS725 or the connector is plugged in, the
CS725 will output the following message on the RS-232 port on power up:

GMONIII Scionix 3x3 V4f_13u SN: 9999

Where:

GMONIII:

Is the original sensor Identifier (now known as CS725)

Scionix 3x3:

Is the Gamma Detector Type

V4f_13u:

Is the Firmware Software Revision

SN: 9999

Is the sensor’s serial number

6. Communicating with the CS725

6.1 General

Immediately after power on, the CS725 will default to a baud rate defined by
the “DefaultBaudRate” parameter. This is normally 9600 bps and it is
recommended to leave the setting at 9600 bps.

The escape key resets the current command line being entered into the CS725.
If you are communicating with the CS725 using another intelligent device, the
commands should be preceded with the ESC character to ensure more reliable
operation.

The commands to the CS725 are case sensitive.

All commands are terminated by the enter key or character.

6.2 Auto Baud Rate Detection

If the terminal speed does not match the CS725’s baud rate, the startup
message will either be absent or garbled. The CS725 does support an Auto
Baud Rate Detection feature. In order to synchronize the CS725 with the
terminal, one can type the letter ‘U’ in uppercase followed by a period “.” and a
carriage return. This will trigger the auto-baud system, and the CS725 will
adjust its baud rate to the baud rate of the terminal. The period “.” followed by
a carriage return (CR) launches the Main menu once the baud rates are
synchronized.

Any changes to the CS725 baud rate must be accounted for in
the datalogger program.

NOTE

6.3 Main CS725 Menu

The Main menu can be prompted by sending a period “.” followed by the enter
key

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