The HasEffectEnable ReferenceTypeis a concrete ReferenceTypeand can be used directly. It is a subtype of HasEffect.

The semantic of this ReferenceTypeis to point form a Transitionto an Alarmthat will be enabled.

• If the Referenceis to an Objectthen all Alarmsin the HasNotifierhierarchy below that Objectare enabled,
• If the target is an AlarmTypethen all instances of that AlarmTypein the HasNotifierhierarchy below the Objectcontaining the StateMachineare enabled
• If the target is an Alarminstance then the given Alarminstance is enabled.

The SourceNodeof this ReferenceTypeshall be an Object of the ObjectType TransitionTypeor one of its subtypes. The TargetNodecan be of any NodeClass.

The representation of the HasEffectenable ReferenceTypein the AddressSpaceis specified in Table 105

Table 105– HasEffectEnable ReferenceType

Attributes	Value
BrowseName	HasEffectEnable
InverseName	MayBeEnabledBy
Symmetric	False
IsAbstract	False
References	NodeClass	BrowseName	Comment