Campbell-scientific CS700 Tipping Bucket Rain Gage and CS700H Heated R Instrukcja Użytkownika Pobierz pdf (Strona 33)

Appendix A. CS700H Operation

TABLE A-3. Snow Sensor Power Options

Mode (X20

command)

Snow Enabled

X22 command

Description

0 Snow sensor doesn’t have power

applied. Cannot detect real snow;

however it indicates snow is always

present.

Auto

1 Snow sensor only has power applied

when the Ambient temperature is below

the Active On temperature. Can only

detect snow when temperature is in this

range.

0 Snow sensor doesn’t have power

applied. Cannot detect real snow,

however it indicates snow is always

present.

Manual

1 Snow sensor always has power applied,

and can detect snow at any time.

A.5 SDI-12 Interface

You may use the SDI-12 capabilities to communicate with the microprocessor

in the rain gage. This mode is enacted on each command by proceeding each

SDI-12 command with an ascii ‘*’ rather than a “break’. When the ascii ‘*’ is

detected, all of the timing/break requirements of the SDI-12 are removed.

Commands may be entered in a datalogger program or from a terminal

program such as “Hyperterminal”.

You must use 1200 baud, 7 bits, even parity and no

handshaking. The “a” is the sensor address in the displayed

commands. By default, the CS700H is set to address “0”.

NOTE

A-5

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 41 42

Brak uwag

Campbell-scientific CS700 Tipping Bucket Rain Gage and CS700H Heated R Instrukcja Użytkownika Strona 33