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Campbell Scientific 4WFB120, 4WFB350, 4WFB1K 4-Wire Full Bridge Terminal Input Module User Manual

Page 16

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4WFB120, 4WFB350, 4WFB1K 4 Wire Full Bridge Terminal Input Modules

*Table 2 Program
01: 0.0000 Execution

Interval

(seconds)


*Table 3 Subroutines

1: Beginning of Subroutine (P85)

;Subroutine to measure "zero"

1: 1

Subroutine

1


2: Do (P86)

;This prevents calling subroutine

1: 11

Set Flag 1 High

;until user sets flag 1 low again.


3: Z=F (P30)

;Set counter use for average to 0

1: 0

F

2: 5

Z LOC [ Count ]


4: Z=F (P30)

;load 4000 into

1: 4000

F

;input location

2: 7

Z LOC [ 4e6 ]


5: Z=X*F (P37)

;Multiply by 1000 to get (4*uS/S)

1: 7

X Loc [ 4e6 ]

2: 1000

F

3: 7

Z LOC [ 4e6 ]


6: Z=F (P30)

;Load Gage Factor into input location

1: 2

F

;Enter the actual Gage Factor here

2: 6

Z LOC [ GF ]


7: Z=X/Y (P38)

;calculate multiplier to use with strain

1: 7

X Loc [ 4e6 ]

;calculation

2: 6

Y Loc [ GF ]

3: 8

Z LOC [ Mult ]


8: Beginning of Loop (P87)

;Loop through 5 times to obtain average

1: 0

Delay

;zero reading

2: 5

Loop

Count


9: Z=Z+1 (P32)

;Increment Counter used to determine

1: 5

Z Loc [ Count ]

;when to output


10: Full Bridge (P6)

;Measure Strain Gage

1: 1

Reps

2: 3

± 15 mV Slow Range

3: 1

In

Card

4: 1

DIFF

Channel

5: 1

Ex

Card

6: 1

Ex

Channel

7: 1

Meas/Ex

8: 5000

mV

Excitation

9: 1

Loc [ mVperV ]

10: 1

Mult

11: 0

Offset

12