Campbell CS475 Especificaciones descargar pdf (Pagina 35)

Appendix B. Entering SDI-12 Commands/Changing Settings

• 0 (OFF—this mode is typically not recommended; sensor is completely off

until a new set power command is received)

The OFF power mode should only be used by advanced users

who want to turn the sensor off for extended time periods. In this

mode the sensor is completely off and only responds to a new set

power command.

CAUTION

The factory default Power Operation Mode is 1 (ON). In this mode of

operation, the instrument is continuously making measurements and draws

approximately 13.5 mA. The AUTO Power Operation Mode puts the

instrument in quiescent mode between measurement request queries.

Change this setting by first using the aXSPOM+n! command (where n=1 (on),

2 (auto), or 0 (off)) followed by the aXGPOM! (Get Power Mode) command.

Table B-6 shows an example of the command and response for changing this

setting.

TABLE B-6. Example for Setting Power Operation Mode

Initial Command Response

0XSPOM+2!

Where,

0—sensor’s address;

2—the new power mode setting

(2=auto).

00011<cr><If>

Where (from left to right),

0—sensor’s address;

001—the amount of time (in seconds)

that you must wait before sending

another data command;

1—the number of values that will be

placed in the buffer.

Subsequent Command Response

aXGPOM!

Where zero is the sensor address.

This is the get power mode

command.

0+2<cr><If>

Where,

0—sensor’s address;

2—the new power mode setting

(2=auto).

B-5

1 2 ... 30 31 32 33 34 35 36 37 38 39 40

Sin comentarios

Campbell CS475 Especificaciones Pagina 35