Specifications
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5.17.10.2 Default command examples
Here follow some example default command sequences
Downloading of current full wave spectrum
This sequence will download the current full spectra and save it as an .SDT file. Only the
current full spectrum can be downloaded. This list can be used with any transmission interval.
rbyid4 (read buoy identification)
rtspc3 (read time tag of last spectrum)
ritxi2 (read transmission interval)
rns001 (read current full wave spectrum)
Downloading of current full wave spectrum and compressed wave spectrum
This sequence is identical in function to the above sequence but also downloads the current
compressed wave spectrum. This is useful when iBuoy is used with a live connection to
W@ves21. This way, the real-time display of W@ves21 will automatically be updated.
rbyid4 (read buoy identification)
rtspc3 (read time tag of last spectrum)
ritxi2 (read transmission interval)
rcs001 (read current compressed wave spectrum)
rns001 (read current full wave spectrum)
Downloading of last 2 to 12 compressed wave spectra
This sequence is used when the transmission interval is set to 2 or higher. In this case, it is
desirable to not only download the current wave spectrum but all new wave spectra since the
previous session. This is done by sending multiple read commands as shown in the following
command sequence:
rbyid4 (read buoy identification)
rtspc3 (read time tag of last spectrum)
ritxi2 (read transmission interval)
rcs<n>1 (read compressed spectrum of <n> half hours ago)
rcs021 (read compressed spectrum of 2 half hours ago)
rcs011 (read compressed spectrum of 1 half hour ago)
rcs001 (read current compressed spectrum)
Depending on the chosen interval, you can download up to 12 compressed wave spectra during
a single session.
5.17.10.3 User command examples
Here follow some example command sequences which can be queued by the user.
Setting a new transmission interval
This sequence will set the transmission interval to its maximum value of once every half hour.
The cstore command assures the new setting will survive a buoy reset. Other transmission
intervals can be set by changing the value of witxi2.
witxi2=1 (set interval to 1*half hour)
cstore (store new settings)
Downloading spectral data from the logger
This sequence will download an .SDT file from the internal logger. SDT files can contain up to
1488 full wave spectra. To save transmission time, it is therefore necessary to download only
the section of the file that is of interest. This is done by calculating an offset into the file and the
length of the file section to download. In this example, data from the 19
th
of may 2006 is
downloaded. For the precise structure of the logger files, please refer to the Datawell technical
note library.