Campbell FW05 Manuale Scaricare il pdf (Pagina 36)

CSAT3 Three Dimensional Sonic Anemometer

'Break up the four CSAT3 warning flags into four separate bits.

diag_csat_work = diag_csat

del_T_f = diag_csat_work AND &h8000

sig_lck_f = diag_csat_work AND &h4000

amp_h_f = diag_csat_work AND &h2000

amp_l_f = diag_csat_work AND &h1000

'Turn on the intermediate processing disable flag when any CSAT3 warning flag is

'high, including the special cases NaN (61502), a Lost Trigger (61440), No Data

'(61503), an SDM error (61441), or wrong CSAT3 embedded code (61442).

disable_flag_on(1) = diag_csat_work AND &hf000

'Turn on only when CSAT3 diagnostic warning flags are set.

disable_flag_on(2) = ( disable_flag_on(1) AND NOT (Ts = NaN) )

'Save the four most significant bits of the CSAT3 diagnostics, except for the

'special cases NaN (61502), a Lost Trigger (61440), No Data (61503), an SDM

'error (61441), or wrong CSAT3 embedded code (61442).

If ( diag_csat_work < &hf000 ) Then ( diag_csat = INT (diag_csat_work/&h1000) )

'Compute the online wind vector statistics.

CallTable wnd_vec

If ( wnd_vec.Output(1,1) ) Then

GetRecord (wnd_out(1),wnd_vec,1)

'Compass wind direction will be between 0 and 360 degrees.

wnd_dir_compass = (wnd_dir_compass+CSAT3_AZIMUTH) MOD 360

'CSAT3 wind direction will be between 0 to 180 degrees and 0 to -180 degrees.

If ( wnd_dir_csat3 ) > 180 Then ( wnd_dir_csat3 = wnd_dir_csat3-360 )

EndIf

CallTable stats

NextScan

EndProg

10.7 Example EDLOG Datalogger Program

In the following example, a CR23X is used to collect data from the CSAT3

using SDM communications. The CR23X will trigger each wind measurement

over the SDM bus and retrieve the data.

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Campbell FW05 Manuale Pagina 36