User Manual

Chapter 6 System Overview
Hi-G-Tek Ltd. Micro electronics & Asset Tracking Technology - 77 -
If a DataReader's Department value is not zero, it can communicate with all
of the DataSeals in the same organization, even if their Department value is
non-zero. Such a DataReader is considered "Supervisor". T he Department
parameter both in DataReaders and in DataSeals can be changed by the
user at any time.
6.5.3 Services to Several Companies by a Service Provider
The DataSeal has a boolean parameter named Gl obal, which is designed to
allow a Service Provider to service several customers. If a DataSeal’s
Global parameter is on, then that DataSeal will respond to any Ve ri f y
command from any DataReader, regardless of OrgID. T he Ve rif y response
will be a limited one, containing only a certain few of the DataSeal
parameters. See the description of the Glo bal paramet er in chapt er 8 fo r a
list of the parameters that can be included in the Verify response in this
case.
Note:
The Glo bal paramet er is programmed during product ion, and it
mu st be de fi ne d an d re ques te d i n a dvan ce .
6.5.4 Subgroups of DataSeals
When a DataReader sends a Verify command In order to detect the
DataSeals in its area, it can receive only a limited number of responses at a
time. If there are many DataSeals in the DataReader's Receiving Zone there
could be too many DataSeals trying to respond at the same time, and that
would cause that none of them will be properly received by the
DataReaders. In order to avoid that, the DataSeals can be divided into small
groups and each group be assigned a unique value called ADI. When the
DataReader will execute a Ve rify command, it would be able to specify a
specific group, and only DataSeals that belong to that group will respond. If
the DataReader would iterate through the groups, it can receive all the
DataSeal in a relatively short time.