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CONFIGURING AND TESTING STAR-System™
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If the system has been started correctly (invoking the proper STAR-Link™ ActiveX
method) and the network initialization has been completed, the registration of the RF
device in the network and the first data transaction occur at the same time.
Then, the RF device will send information to the host PC identifying the RF device
type and the RF library version. Finally, it will transmit the data packet taken from the
application program.
On the other hand, if the communication with the first base station in a network layout
fails, the RF device will try to communicate with other base stations having an
address in the range specified in steps 2 – 3 and following an increasing order.
This
procedure requires the base stations involved in the roaming of an RF device to have
adjacent addresses.
Using a wrong base address range in the RF device configuration could lead to a
useless increase of the latency time.
As explained before, for each RF device you can specify the set of bases it can
communicate with. This can be used to define subsets of the base stations: you may
have RF devices working with all the bases and RF devices working with only one or
two of them (e.g. specifying for points 2 and 3 the range 1000 -1000 or 1001 - 1002),
while the base stations communicate with every RF device asking for it (according to
the memory limits).
Once the first transaction is completed, the RF device is registered in the network
and automatically and dynamically establish the communication with the best base
station within the address range specified.
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