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HA0177T Rev D Sept 2012
Chapter 3
3.6
Assigning a Serial Number
Every hardware unit is factory programmed with a unique 8-digit serial number. This
serial number is key to operation of the APT Server software and is used by the
Server to enumerate and communicate independently with multiple hardware units
connected on the same USB bus.
Before an ActiveX control can communicate with the associated hardware unit, the
relevant serial number must be allocated to the control instance. This is performed
automatically when using the APT User utility. For custom application software it must
be achieved by calling the HWSerialNum property.
