Campbell-scientific CR1000 Measurement and Control System Instrukcja Użytkownika Strona 485

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Appendix A. CRBasic Programming Instructions
485
BrFull6W
MeasuresratioofV
diff2
/V
diff1
ofasixwirefullbridge.Reports1000*(V
diff2
/
V
diff1
).
Syntax
BrFull6W(Dest, Reps, Range1, Range2, DiffChan, Vx/ExChan,
MeasPEx, ExmV, RevEx, RevDiff, SettlingTime, Integ, Mult,
Offset)
BrHalf
Measuressingleendedvoltageofathreewirehalfbridge.Delayisoptional.
Syntax
BrHalf(Dest, Reps, Range, SEChan, Vx/ExChan, MeasPEx, ExmV,
RevEx, SettlingTime, Integ, Mult, Offset)
BrHalf3W
MeasuresratioofR
s
/R
f
ofathreewirehalfbridge.
Syntax
BrHalf3W(Dest, Reps, Range, SEChan, Vx/ExChan, MeasPEx, ExmV,
RevEx, SettlingTime, Integ, Mult, Offset)
BrHalf4W
MeasuresratioofR
s
/R
f
ofafourwirehalfbridge.
Syntax
BrHalf4W(Dest, Reps, Range1, Range2, DiffChan, Vx/ExChan,
MeasPEx, ExmV, RevEx, RevDiff, SettlingTime, Integ, Mult,
Offset)
A.5.5 Excitation
ExciteV
Thisinstructionsetsthespecifiedswitchedvoltageexcitationchanneltothe
voltagespecified.
Syntax
ExciteV(Vx/ExChan, ExmV, XDelay)
SW12
Setsaswitched12Vdcterminalhighorlow.
Syntax
SW12(State)
A.5.6 Pulse and Frequency
Read More! See Pulse (p. 312).
Note Pull-up resistors are required when using digital I/O (control) ports for
pulse input (see Pulse Input on Digital I/O Channels C1 - C8 (p. 315) ).
PeriodAvg
Measurestheperiodofasignalonanysingleendedvoltageinputchannel.
Syntax
PeriodAvg(Dest, Reps, Range, SEChan, Threshold, PAOption,
Cycles, Timeout, Mult, Offset)
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