The LaserSystemUtilityChangePrognosisType is to be used as an interface indicating upcoming maintenance measures, in which utilities are to be exchanged. One such might be the change of a filter or the refilling of a water coolant system.

Note: The LaserSystemUtilityChangePrognosisType differs from the LaserSystemMaintenancePrognosisType as it always refers to one specific component which is to be serviced.

The LaserSystemUtilityChangePrognosisType is formally defined in Table 29.

Table 29 – LaserSystemUtilityChangePrognosisType Definition

Attribute	Value
BrowseName	LaserSystemUtilityChangePrognosisType
IsAbstract	False
References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the 4:UtilityChangePrognosisType defined in OPC 40501-1 i.e. inheriting the InstanceDeclarations of that Node.
0:HasComponent	Variable	Description	0:LocalizedText	0:BaseDataVariableType	M, RO
0:HasProperty	Variable	Code	0:String	0:PropertyType	O, RO
Conformance Units
LaserSystems LaserSystemUtilityChangePrognosisType Basic

The 4:PredictedTime as defined the 4:PrognosisType is used to indicate the point in time the utility change will become necessary.

The 4:UtilityName as defined in the super type 4:UtilityChangePrognosisType is to be used to indicate the name of the utility to be exchanged. Examples may be "Air filter" or "Coolant water".

The Description indicates in a more elaborate (as compared to 4:UtilityName) and textual form what is to be done for the specific utility change.

The Code may, for example, be used to link a maintenance activity to one specified in a service manual.