Vaisala Drycap DMT152 Guía de usuario descargar pdf (Pagina 51)

Chapter 5 ________________________________________________________ Serial Line Operation

VAISALA ________________________________________________________________________ 49

Serial Line Output Commands

Start Measurement Output

Use the R command to start the continuous outputting of measurement

values as an ASCII text string to the serial line. The format of the

measurement message is set with the FORM command.

R<cr>

Example (measurement message in default format):

Tdf= -2.5 'C H2O= 4919 ppm

Tdf= -2.5 'C H2O= 4918 ppm

Tdf= -2.5 'C H2O= 4917 ppm

…

Outputting the results continues in intervals issued with the command

INTV. You can stop the output by pressing the Esc key, or with the

command S. Since the interface is half-duplex, you must enter the

commands when the transmitter is not outputting.

Stop Measurement Output

You can stop the measurement output by pressing Esc, or with the S

command:

S<cr>

Set Output Interval

INTV [n xxx]<cr>

where

time interval = 0 ... 255

xxx

time unit = "S", "MIN", or "H"

Example:

intv 1 min

Output interval: 1 MIN

The shortest output interval (with n = 0) is approximately one second due

to the internal measurement cycle.

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Vaisala Drycap DMT152 Guía de usuario Pagina 51