Atlas Copco PowerMACS 4000, User Manual

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Set Up and Maintenance
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During a cold start of the System TC checks the status of its own local database and the backup copy
stored on TC 2. Depending of their respective status the following cases can arise during system start-up:
Case Status of
setup in the
System TC Status of the
backup in
TC 2
Action
1 Empty Empty Only the System TC is started. A setup must be
downloaded using ToolsTalk PowerMACS.
2 Empty Ok First the backup setup is copied from TC 2 to the System
TC.
Then the system starts using the copied setup.
3 Ok Empty First the setup is copied from the System TC to TC 2.
Then the system starts using setup originally stored on the
System TC.
4 OK OK and identical
to the setup in
the System TC The system does a normal start.
5 OK OK but not
identical to the
setup in the
System TC
The system is not started . This situation is indicated to
the operator in the following two ways:

On the System TC the display will say backup setup
differs.

When trying to go connect with ToolsTalk PowerMACS
it will refuse to connect and only display the "Resolve
Procedure" form describing the situation.
See chapter: Replacement of TCs below, for how to
resolve the ambiguity.