3 Data Source Configuration
Each device available via the Beams Division's XML-RPC server has an
``ACNET'' name, a scalar value (or an array of values) and a unit.
[fixme]:Are there any more complex data structures or other ways to
specify data? For example, there is a device named ``M:OUTTMP''
which gives the outside temperature in degrees.
[requirement]:The process must be able to be configured with a list of
devices to read back. This configuration only happens at startup
time.