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A major alarm is a real alarm and indicates an error. In the record, you can specify an upper and a lower limit: for example for AI and AO record you have to configure the fields HIHI and LOLO (and additionaly the fields HHSV and LLSV have to be set to "MAJOR").

An operator should react to a major alarm and solve the problem. On displays , an error is shown in red.

Zimoch Elke 2009-04-14

Source: /afs/