Campbell Scientific CDM-VW300 Series Dynamic Vibrating-Wire Analyzer System - Manual (Page 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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