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Section 5 Binary Process Control Alarm Handling Alarm Handling For more information on alarm and event handling, see the manual System 800xA Control, AC 800M, Configuration (3BSE035980*) , and online help for the Alarm and Event library. Some process objects contain an alarm and event handling function block. The alarm handling interface consists of the following parameters: • • • • • • • • • • • AlarmDisabled ExtErr ObjErr AlState AlarmAck AEConfig AESeverity AEClass EnableSupOut CondName AEError When an error occurs, motor objects normally and automatically enter Priority mode and reset the start signals. It is possible to leave the motor running, by setting the interaction parameter KeepAtErr. For other template objects, this is the normal functionality. For the alarm to work properly, the Name parameter of each object has to be unique throughout the whole plant. The alarm function is based on the AlarmCond function block, with acknowledge rule (AckRule=1). This acknowledge rule includes six possible alarm states. For further information about alarm states, see online help on the AlarmCond function block. The alarm is activated by a feedback error. The AlarmCond function block incorporates an alarm Control Builder interaction window, displayed by a clicking the alarm icon in the Control Builder interaction window. See Figure 165. 3BSE035981-600 333
