Campbell Scientific 4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules - Manual (Page 15)

4WFBS120, 4WFBS350, 4WFBS1K 4 Wire Full Bridge Terminal Input Modules (TIM)
BeginProg 'Program begins here
GF(1) = 2.1 : GF(2) = 2.2 : GF(3) = 2.3 'Initialize gauge factors for Strain( )
ZReps = 3 : ZIndex = 1 ‘initialize cal reps and index pointer
LoadFieldCal (True) ‘Load prior calibration factors
Scan (10,mSec,100,0) 'Scan once every 10 mSecs, non-burst
FieldCalStrain( 10,StrainMvperV(),ZReps,0,ZeromV_V(),ModeVar,0,ZIndex,1,0,Strain())
BrFull (StrainMvperV(),3,mV50,4,1,5,7,1,5000,True,True,70,100,1,0)
StrainCalc (Strain(),3,StrainMvperV(),ZeromV_V(),-1,GF(),0) 'Strain calculation
CallTable STRAIN
CallTable Calib
Next Scan 'Loop up for the next scan
SlowSequence 'Slow sequence Scan to perform
Scan (1,Sec,0,0) 'temperature compensation on the DAQ
Calibrate 'Corrects ADC offset and gain
BiasComp 'Corrects ADC bias current
Next Scan
EndProg 'Program ends here
Example Program 4.3. CR1000 ¼ Bridge Strain with 3 reps and zero offset
This example program performs the same tasks as Example Program 4.2, only
it is a CR1000 program instead of a CR9000X program. There are slight
differences such as range codes and the fact that the CR1000 does not have a
Slot parameter for its measurement instructions. This program is more similar
to what a CR800, CR3000, or a CR5000 program would look like than the
CR9000X program.
' Program name: STRAIN0.CR1
Public StrainMvperV(3) : Units StrainMvperV = mV_per_V 'Raw Strain dimensioned source
Public Strain(3) : Units Strain = uStrain ‘uStrain dimensioned source
Public GF(3) 'Dimensioned gauge factor
Public ZeromV_V(3), ZeroStrain(3)
Public ZReps, ZIndex, ModeVar
DataTable (STRAIN,True,-1) 'Trigger, auto size
DataInterval (0,0,0,100) 'Synchronous, 100 lapses, autosize
CardOut (0,-1) 'PC card , size Auto
Sample (3,Strain(),IEEE4) '3 Reps, uStrain, Resolution
Sample (3,StrainMvperV(),IEEE4) ‘3Reps,Stain mVolt/Volt, Resolution
EndTable 'End of table STRAIN
DataTable (Calib, NewFieldCal ,10) ‘Table for calibration factors from zeroing
SampleFieldCal ‘User should collect these to his computer
EndTable ‘for future reference
BeginProg 'Program begins here
GF(1) = 2.1 : GF(2) = 2.2 : GF(3) = 2.3 'Initialize gauge factors for Strain( )
ZReps = 3 : ZIndex = 1 ‘initialize cal reps and index pointer
LoadFieldCal (True) ‘Load prior calibration factors
Scan (100,mSec,100,0) 'Scan once every 10 mSecs, non-burst
FieldCalStrain( 10,StrainMvperV(),ZReps,0,ZeromV_V(),ModeVar,0,ZIndex,1,0,Strain())
BrFull (StrainMvperV(),3,mV7_5,1,1,3,2500,True,True,450,500,1,0)
StrainCalc (Strain(),3,StrainMvperV(),ZeromV_V(),-1,GF(),0) 'Strain calculation
CallTable STRAIN
CallTable Calib
Next Scan 'Loop up for the next scan
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