The AlarmGroupTypeprovides a simple manner of grouping Alarms. This grouping can be used for Alarmsuppression or for identifying related Alarms. The actual usage of the AlarmGroupTypeis specified where it is used.

Table 36– AlarmGroupType Definition

Attribute	Value
BrowseName	AlarmGroupType
IsAbstract	False
References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of the FolderTypedefined in OPC 10000-5
AlarmGroupMember	Object	<AlarmConditionInstance>		AlarmConditionType	OptionalPlaceholder

The instance of an AlarmGroupTypeshould be given a name and description that describes the purpose of the Alarmgroup.

The AlarmGroupTypeinstance will contain a list of instances of AlarmConditionTypeor sub type of AlarmConditionTypereferenced by AlarmGroupMemberreferences. At least one Alarmmust be present in an instance of an AlarmGroupType.