Guralp Systems CMG-EDU - Manual (Page 13)

Operator's guide
You can set all ports to the same baud rate by clicking on the
column heading and choosing a suitable value from the drop-
down menu.
Under normal conditions, you will not need to change any of
the remaining settings.
4. Click OK.
Streams from connected instruments should now begin appearing in
the right-hand portion of Scream's main window.
Scream! will remember all the data sources you have specified on exit.
When you next open the program, it will automatically try to re-
establish all the connections.
3.3 The stream buffer
Scream! works by recording incoming streams into a fixed area of
memory, called the stream buffer. All of Scream!'s operations work
with the data in this buffer.
When you start Scream! for the first time, this buffer is empty. You can
add data to it either by receiving it from local serial ports, connecting
to Scream! network servers, or replaying GCF files.
Once the stream buffer is full, Scream! will start discarding the oldest
data. If you have not told Scream! to record the incoming streams (see
Chapter 4, “Recording and playback” ), then you will not be able to get
discarded data back.
If you have enabled GCF recording, Scream! keeps track of the files
which contain data in the stream buffer, and saves this information in
a .lst file in the current recording directory. When Scream! is
restarted, it reads this file and tries to rebuild the stream buffer as it
was when it was shut down. Otherwise, the buffer starts off empty as
before.
3.4 The source tree
The tree in the left panel of the main window shows all the data
sources currently connected to Scream!.
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