gefran 3850T Use And Installation Manual page 72

4. CONFIGURATION
Special programmes, the ZERO programme
The ZERO programme is a special programme always
present in the instrument, a routine without any associated
profiles, but only the getLogic and Reporting part, which
cannot be deleted by the user. Its most important features
are:
• Continuous execution: the ZERO programme is
executed by default, with no need for the user to start
it, but it must be explicitly stopped. It follows from this
feature that the associated logical functions and report
will always be active.
• The logical functions of the ZERO programme: The
logical functions of the ZERO programme, unlike those
of all the other programmes, are editable while the
programme is under way. These functions should be
used for all system logic not strictly associated with a
single programme. For example, the logic of the ZERO
programme may be used to manage alarm chains.
• Continuous datalog: The ZERO programme generates
a continuous report which has all the features we have
seen in the section on reports, such as sampling time
and encrypting, but with some differences. As it is a
continuous record, the most important of these is the
possibility of breaking up the report file hourly, daily
or weekly. These files can only be viewed using the
ReportUtility tool. Another difference is the absence of
a recipe for association with the report file, because the
ZERO programme has no recipes.
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