6 OPC UA ObjectTypes

6.18 ProcessItemType

6.18.2 ObjectType Definition

The ProcessItemType is formally defined in Table 50.

Table 50 – ProcessItemType Definition

Abstract	Value
BroseName	ProcessItemType
IsAbstract	False
References	Node Class	BrowseName	DataType	TypeDefinition	Modelling Rule
Subtype of BaseObjectType defined in OPC 10000-5
HasComponent	Variable	DisplayFormat	String	BaseDataVariableType	Mandatory
HasComponent	Variable	EffectivePrecision	Double	BaseDataVariableType	Mandatory
HasComponent	Variable	HH	Double	BaseDataVariableType	Mandatory
HasComponent	Variable	H	Double	BaseDataVariableType	Mandatory
HasComponent	Variable	L	Double	BaseDataVariableType	Mandatory
HasComponent	Variable	LL	Double	BaseDataVariableType	Mandatory
HasComponent	Variable	AnalogMeasurement	Double	BaseDataVariableType	Mandatory
HasComponent	Object	UIInfo		UIInformationType	Mandatory
HasProperty	Variable	0:EngineeringUnits	EUInformation	PropertyType	Mandatory

The ProcessItemType ObjectType is a concrete type and can be used directly.

Remark. The AnalogMeasurement value shall be historized and accessed via the OPC UA HistoryReadService as described in OPC 10000-11. The sampling time for the value is the same used by the OEM for machine performance analysis.