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The Instrument_Listener application (see
from instruments in the field. Whenever an instrument tries to connect, it opens a Server
window (see
Figure
21). That window briefly opens to show the communications with the instrument,
battery level and temperature. It manages all operations that the instrument needs to perform and then
closes back down.
Note:
When several instruments try to connect at the same time, the Instrument_Listener application
will open multiple ABC_Server windows.
Figure 20
Instrument_Listener Application
Figure 21 ABC_Server Window
The ABC_Server window performs the following operations:
If data is in the instrument, it creates a .wlg file to hold that data, or appends the data to the file
if one has already been created.
If the instrument is not currently recording, it then erases the instrument's memory, adjusts the
time, and starts recording. If the instrument is recording it closes as is and lets the recording
continue.
9.1

File Storage

The .wlg files that are created by the ABC_Server are stored by default in
C:\Users\username\Documents\ABC_Instruments\All_Instruments\Records\ABC-Mems,
User's Manual
Figure
20) always listens to incoming connection attempts
39

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