Campbell CDM-VW300 Series Manuál stáhnout pdf (Strana 58)

CDM-VW300 Series Dynamic Vibrating-Wire Analyzers

CDM_VW300Static() captures static readings such as thermistor, static

frequency, and standard deviation of dynamic frequencies at 1 Hz. It is used in

the main scan inside of a TimeIntoInterval() conditional statement. Set

TimeIntoInterval() to capture static data at 1 Hz. Capturing static data less

frequently is possible, but when doing so, only the latest static frequency

sample will be available.

CDM_VW300Static(CPIAddress, DestFreq, DestTherm, DestStdDev)

CDM_VW300RainFlow() obtains rainflow-histogram data. It is used in a

slow sequence.

CDM_VW300RainFlow(CPIAddress, RF1, RF2, RF3, RF4, RF5, RF6,

RF7, RF8)

RainFlowSample() writes the rainflow-histogram data to a data table. A

typical rate for obtaining rainflow data is once per minute (60 s interval).

RainFlowSample(Source, DataType)

For more information, see the CRBasic Editor Help topics for each instruction.

Sample CRBasic programs for the CR3000 datalogger and CDM-VW300 and

CDM-VW305 combinations are listed in Appendix G, CRBasic Program

Library. These programs are examples and will likely need to be adapted for a

specific application.

CPISpeed() controls the speed of the CPI bus. Use of this instruction is

optional.

CPISpeed(BitRate)

7.10.2 Sending Programs to the Datalogger

Several options are available for sending programs to dataloggers. Detailed

information can be found in the manuals for those options. Manuals are

available at www.campbellsci.com. Software options are preferred and assume

that the datalogger has an active communications link with a PC. The

following datalogger support software have Send Program utilities to send

programs over the active communications link:

• DevConfig

• PC400

• LoggerNet

• RTDAQ

In addition, the following portable memory devices have provisions for

transferring programs from a PC to the datalogger:

• CompactFlash

(CF) card with CFM100 or NL115 CompactFlash

Modules

• SC115 CS I/O 2G Flash Memory Drive with USB Interface

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Campbell CDM-VW300 Series Manuál Strana 58