Denso BHT-825QW User Manual page 20

[3] Software Used at the BHT Unit
The BHT unit FLASH memory has a system area and
user area, with the system program stored in the
system area and font files and user programs stored in
the user area.
The BHT unit is shipped with the system program and font
files stored in their respective areas.
Application programs (*.PD4) stored in the user area are run by the system program in order to use the
BHT.
It is necessary to download application programs (*.PD4) and data files (product master files etc.) required
to run application programs (*.PD4) to the BHT user area prior to use.
System Program
• Driver
Driver is a set of programs that directly controls the BHT hardware. It can be called up by the
BHT-BASIC Interpreter or System Mode.
• BHT-BASIC Interpreter
This program interprets application program (*.PD4) command language and controls the BHT unit
hardware via drivers.
2D Code Handy Terminal
Host computer
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