Campbell Scientific 4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Manual (Page 18)

4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules (TIM)
Example Program 4.4. CR10X ¼ Bridge Strain with 1 rep and zero offset
;{CR10X}
*Table 1 Program
01: 1
Execution Interval (seconds)
1: If Flag/Port (P91)
;On the first execution (Flag 1 is low)
1: 21 Do if Flag 1 is Low ;or when user sets Flag 1 low
2: 1 Call Subroutine 1 ;call the zeroing subroutine
2: Full Bridge (P6)
;Measure the strain gage
1: 1 Reps
2: 22 ± 7.5 mV 60 Hz Rejection Range
3: 1 DIFF Channel
4: 1 Excite all reps withExchan 1
5: 2500 mV Excitation
6: 1 Loc [ mVperV ]
7: 1 Mult
8: 0 Offset
3: X-Y (P35)
;Subtract zero reading from the
1: 1 X Loc [ mVperV ] ;measurement
2: 2 Y Loc [ mVperV_0 ]
3: 3 Z Loc [ Vr ]
4: X*F (P37)
;Change Vr from mV/V to V/V
1: 3 Loc [ Vr ]
2: 0.001
3: 3 Loc [ Vr ]
;The following instructions calculate microstrain
5: Z=X*F (P37)
1: 3
X Loc [ Vr ]
2: -2 F
3: 9 Z Loc [ 1_2Vr ]
6: Z=Z+1 (P32)
1: 9
Z Loc [ 1_2Vr ]
7: Z=X/Y (P38)
1: 3
X Loc [ Vr ]
2: 9 Y Loc [ 1_2Vr ]
3: 10 Loc [ Vr_1_2Vr ]
8: Z=X*Y (P36)
1: 10
X Loc [ Vr_1_2Vr ]
2: 8 Y Loc [ Mult ]
3: 4 Z Loc [ uStrain ]
; Output Section : This example outputs an average of the 1 second readings ;once per minute.
09: If time is (P92)
1: 0
Minutes (Seconds --) into a
2: 1 Interval (same units as above)
3: 10 Set Output Flag High
10: Set Active Storage Area (P80)
1: 1
Final Storage Area 1
2: 1 Array ID ;Set Array ID = 1 for measurement data
11: Real Time (P77)
1: 1110
Year,Day,Hour/Minute
12