Chapter
3 HSA config files (*.hsa)
3.1 What are HSA3500 Configuration Files?
For the analyzer power supply the (*.hsa) configuration file specifies in addition to the
power supply wiring, the individual DAC voltages in terms of relationships between lo-
gical voltages within the analyzer (Kinetic Energy, Pass Energy, ...) and assignments of
logical voltages to DAC voltages. Since the HSA configuration files define these map-
pings, the functionality of the analyzer can be changed without recompiling the control
software.
The backplane of the unit incorporates plug connectors which permit various intercon-
nection topologies among the different modules. Each HSA power supply is manufac-
tured with a fixed combination of modules and backplane interconnectivity. Each com-
bination constitutes a hardware type.
Each hardware type can be configured to function in one of a number of ways depend-
ing on how switchable outputs, voltage polarity and levels are set. These settings are
communicated to each card’s control processor according to the specifications which
the main CPU extracts from the configuration file.
HSA3500 / HSA3500 plus Power Supply 27
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