Campbell-scientific SDM-AO4A Four Channel Analog Output Module Manual de usuario descargar pdf (Pagina 15)

SDM-AO4A Four Channel Analog Output

'Code for DataTable OneMin

DataTable(OneMin,1,-1)

DataInterval(0,1,Min,0)

WindVector (1, WS_ms,WD_0_360, IEEE4, 0, 0, 0, 0)

Average(1,Temp_C,IEEE4,0)

Sample(1,RH, IEEE4

EndTable

BeginProg

Scan(1,Sec,1,0)

' Code for 03001 wind measurements, WS_ms & WD_0_360:

PulseCount(WS_ms, 1, 1, 1, 1, 0.75, 0.2)

BrHalf(WD_0_360, 1, mV1000, 1, 1, 1, 1000, True, 1000, 250, 355, 0)

' Code for CS500 measurement, AirTC and RH:

VoltSE(Temp_C,1,mV5000,3,0, 0, _60Hz,0.1,-40.0)

VoltSE(RH,1,mV5000,2,0, 0, _60Hz,0.1, 0)

' Call Data Table

CallTable(OneMin)

' Convert 0-360 WD to 0-540:

If WD_0_540 >= 270 and WD_0_360 <180 Then

WD_0_540 = WD_0_360 + 360

Else

WD_0_540 = WD_0_360

EndIf

' Scale the measurements for the SDM-AO4A to output 0-1000 mV

WSOut = WS_ms*20 'WS: 0-50 m/s = 0-1000 mV

WDOut = WD_0_540 *1.859 'WD: 0-540 deg = 0-1000mV

TempOut= 10*(Temp_C+40) 'Temp: -40-60 deg C = 0-1000 mV

RHOut = RH *10 'RH: 0-100 % RH = 0-1000 mV

' Send mV outputs to SDM-AO4A at SDM Address 12 (Rotary Switch at C)

SDMAO4A (AO4AOutput(),AO4AResponse,12,1,4,1)

NextScan

EndProg

7.3.2 CR10X Program Example

Although this program is for a CR10X, programming for other Edlog

dataloggers is similar.

;{CR10X}

*Table 1 Program

01: 1.0000 Execution Interval (seconds)

; Code for 03001 wind measurements, WS_ms & WindDir:

1: Pulse (P3)

1: 1 Reps

2: 1 Pulse Channel 1

3: 21 Low Level AC, Output Hz

4: 1 Loc [ WS_ms ]

5: 0.75 Mult

6: 0.2 Offset

1 2 ... 10 11 12 13 14 15 16 17 18 19 20

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Campbell-scientific SDM-AO4A Four Channel Analog Output Module Manual de usuario Pagina 15

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