Campbell Scientific CSAT3 CSAT3 3-D Sonic Anemometer - Page 38

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CSAT3 Three Dimensional Sonic Anemometer ;If the CSAT3 head is pointing West of North (above figure), ;theta is negative. If the CSAT3 head is pointing East of ;North, theta is positive. ; ;The site attendant must enter the value of theta. Search ;for the text string "unique value" to find the location where ;theta is entered. *Table 1 Program 01: .1 Execution Interval (seconds) ;Get the data from the CSAT3. ; 1: SDM-CSAT3 (P107) 1: 1 Reps 2: 3 SDM Address 3: 91 Trigger and Get wind & Ts data 4: 1 Ux Input Location [ Ux ] ;Configure the CSAT3. ; 2: Do (P86) 1: 1 Call Subroutine 1 ;Change the CSAT3 Ux and Uy to instantaneous compass wind direction. ; 3: Z=X (P31) 1: 1 X Loc [ Ux ] 2: 11 Z Loc [ Prop_N ] 4: Z=X*F (P37) 1: 2 2: -1 3: 9 X Loc [ Uy ] F Z Loc [ Prop_E ] ;Copy the CSAT3 Ux and Uy instantaneous wind to compute CSAT3 wind direction. ; 5: Z=X (P31) 1: 1 X Loc [ Ux ] 2: 10 Z Loc [ Ux_copy ] 6: Z=X (P31) 1: 2 2: 12 X Loc [ Uy ] Z Loc [ Uy_copy ] 7: Z=ABS(X) (P43) 1: 5 X Loc [ diag ] 2: 36 Z Loc [ diag_abs ] 30

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CSAT3 Three Dimensional Sonic Anemometer
;If the CSAT3 head is pointing West of North (above figure),
;theta is negative. If the CSAT3 head is pointing East of
;North, theta is positive.
;
;The site attendant must enter the value of theta. Search
;for the text string "unique value" to find the location where
;theta is entered.
*Table 1 Program
01: .1
Execution Interval (seconds)
;Get the data from the CSAT3.
;
1:
SDM-CSAT3 (P107)
1:
1
Reps
2:
3
SDM Address
3:
91
Trigger and Get wind & Ts data
4:
1
Ux Input Location [ Ux
]
;Configure the CSAT3.
;
2:
Do (P86)
1:
1
Call Subroutine 1
;Change the CSAT3 Ux and Uy to instantaneous compass wind direction.
;
3:
Z=X (P31)
1:
1
X Loc [ Ux
]
2:
11
Z Loc [ Prop_N
]
4:
Z=X*F (P37)
1:
2
X Loc [ Uy
]
2:
-1
F
3:
9
Z Loc [ Prop_E
]
;Copy the CSAT3 Ux and Uy instantaneous wind to compute CSAT3 wind direction.
;
5:
Z=X (P31)
1:
1
X Loc [ Ux
]
2:
10
Z Loc [ Ux_copy
]
6:
Z=X (P31)
1:
2
X Loc [ Uy
]
2: 12
Z Loc [ Uy_copy
]
7:
Z=ABS(X) (P43)
1:
5
X Loc [ diag
]
2:
36
Z Loc [ diag_abs
]
30