Leica Geosystems GPS System 500 - Technical Reference Manual - Manual (Page 373)

373 Appendix J Technical Reference Manual-4.0.0en
Starting the Ring Buffer
Once the chosen ring buffer has been
configured, pressing START (F3)
activates logging to the ring buffer.
Note that if there is insufficient
memory available on the chosen
device for the ring buffer, then it will
not become active. Either the ring
buffer configuration is reduced in size
by choosing a different interval or
shorter period or the memory
available on the chosen device is
increased by erasing data from the
card.
Once the chosen ring buffer is active,
the STOP (F3) button then becomes
available to stop logging to the ring
buffer.
Note, that it is not possible to activate
more than one Ring Buffer at a time.
To log data to another ring buffer with
a different configuration requires the
currently active ring buffer to be
stopped before starting the new one.
Once data has been logged to a ring
buffer and logging has been stopped
then the data in this ring buffer can be
deleted by pressing DEL (F4).
Pressing START (F3) restarts
logging.
It is not possible to change the
configuration parameters of a ring
buffer once data has been recorded
to the buffer. Only after deleting the
recorded data stored in that buffer,
can the configuration parameters be
edited.
A ring buffer does consist of several
files sharing the same file name with
incrementing file extension. The
number of files a ring buffer consists
of depends on the data interval
specified and is automatically
determined. For example, a one hour
interval will consist of 6 files each of
10 minutes length and a seventh file
which is currently logged data to
when the ring buffer is active. The
ring buffer consists only of MDB
(Measurement DataBase) files. No
additional job (GeoDB) files will be
created.