Campbell-scientific CR3000 Micrologger Manual de usuario descargar pdf (Pagina 488)

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Appendix A. CRBasic Programming Instructions

488

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SW12

Setsaswitched12‐Vdcterminalhighorlow.

Syntax

SW12(State)

A.5.6 Pulse and Frequency

Read More! See Pulse (p. 318).



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. 321) ).

PeriodAvg

Measurestheperiodofasignalonanysingle‐endedvoltageinputchannel.

Syntax

PeriodAvg(Dest, Reps, Range, SEChan, Threshold, PAOption,

Cycles, Timeout, Mult, Offset)

PulseCount

Measuresnumberorfrequencyofvoltagespulsesonapulsechannel.

Syntax

PulseCount(Dest, Reps, PChan, PConfig, POption, Mult, Offset)

VibratingWire

TheVibratingWireinstructionisusedtomeasureavibratingwiresensorwitha

sweptfrequency(fromlowtohigh).

Syntax

VibratingWire(Dest, Reps, Range, SEChan, Vx/ExChan,

StartFreq, EndFreq, TSweep, Steps, DelMeas, NumCycles,

DelReps, Multiplier, Offset)

A.5.7 Digital I/O

CheckPort

Returnsthestatusofacontrolport.

Syntax

X = CheckPort(Port)

PortGet

Readsthestatusofacontrolport.

Syntax

PortGet(Dest, Port)

PortsConfig

Configurescontrolportsasinputoroutput.

Syntax

PortsConfig(Mask, Function)

ReadIO

ReadsthestatusofselectedcontrolI/Oports.

Syntax

ReadIO(Dest, Mask)

1 2 ... 483 484 485 486 487 488 489 490 491 492 493 ... 589 590

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Campbell-scientific CR3000 Micrologger Manual de usuario Pagina 488

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