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Documentation for Monitoring 10.0. Documentation for other versions of Monitoring is available too.

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Information about long-term alarm can be not recorded into the Monitoring database and not displayed in its interfaces in the following cases:

  1. If a long-term alarm had started and ended within two polls of Agent of Control (within the Ping frequency interval, see Monitoring. Administrator's Guide).
  2. If a long-term alarm had started and ended when the connection between Agent of Control and Server of Control was lost.

When there is no connection with Server of Control, the short-term alarms are stored in the "holding" data files on the Agent of Control. When connection with Server of Control is restored, they are transferred to the Server of Control, stored in the Monitoring database and displayed in its interfaces.