Campbell Scientific SDM-AO4A Four Channel Analog Output Module - Manual (Page 17)

SDM-AO4A Four Channel Analog Output
10: Sample (P70) ; Sample RH
1: 1 Reps
2: 4 Loc [ RH ]
; Routine to convert 0-360 deg. Direction to 0-540 deg.
11: Do (P86)
1: 21
Set Flag 1 Low
12: If (X<=>F) (P89)
; Set Flag 1 if previous
1: 9 X Loc [ WD_0_540 ] ; reading was > 270
2: 3 >=
3: 270 F
4: 11 Set Flag 1 High
13: Z=X (P31)
; Set 0-540 value to current 0-360 reading
1: 2 X Loc [ WD_0_360 ]
2: 9 Z Loc [ WD_0_540 ]
14: If (X<=>F) (P89)
; If current reading is <180
1: 9 X Loc [ WD_0_540 ]
2: 4 <
3: 180 F
4: 30 Then Do
15: If Flag/Port (P91)
; And if previous reading
1: 11 Do if Flag 1 is High ; was > 270
2: 30 Then Do
16: Z=X+F (P34)
; Add 360 to the current reading
1: 9 X Loc [ WD_0_540 ] ; otherwise, the current reading
2: 360 F ; is left alone
3: 9 Z Loc [ WD_0_540 ]
17: End (P95)
18: End (P95)
; Scale the measurements for the SDM-AO4A to output 0 to 1000 mV
19: Z=X*F (P37)
; Scale WS: 0-50 mps = 0-1000 mV
1: 1 X Loc [ WS_ms ]
2: 20 F
3: 5 Z Loc [ WSoutput ]
20: Z=X*F (P37)
; Scale WD: 0-540 deg = 0-1000 mV
1: 9 X Loc [ WD_0_540 ]
2: 1.859 F
3: 6 Z Loc [ WDoutput ]
21: Z=X+F (P34)
; Scale Temperature: -40-60 deg C = 0-1000 mV
1: 3 X Loc [ Temp_C ]
2: 40 F
3: 7 Z Loc [ TempOut ]
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