7 OPC UA ObjectTypes

7.3 ComponentsGroupType ObjectType Definition

The ComponentsGroupType enables the grouping of Components and can be nested. It is illustrated in Figure 18 and formally defined in Table 15.

Figure 18 – ComponentsGroupType Illustration

Table 15 – ComponentsGroupType Definition

Attribute	Value
BrowseName	ComponentsGroupType
IsAbstract	False
References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the 4:MachineComponentsType defined in OPC 40001-1, i.e. inheriting the InstanceDeclarations of that Node.
0:HasComponent	Object	<ComponentsGroup>		4:MachineComponentsType	OP
0:HasComponent	Object	ChargingSystems		4:MachineComponentsType	O
0:HasComponent	Object	Compressors		4:MachineComponentsType	O
0:HasComponent	Object	CondensateDrains		4:MachineComponentsType	O
0:HasComponent	Object	CondensateSeparators		4:MachineComponentsType	O
0:HasComponent	Object	Converters		4:MachineComponentsType	O
0:HasComponent	Object	CoolingSystems		4:MachineComponentsType	O
0:HasComponent	Object	Dryers		4:MachineComponentsType	O
0:HasComponent	Object	Filters		4:MachineComponentsType	O
0:HasComponent	Object	HeatRecoverySystems		4:MachineComponentsType	O
0:HasComponent	Object	Receivers		4:MachineComponentsType	O
0:HasComponent	Object	Sensors		4:MachineComponentsType	O
0:HasComponent	Object	Valves		4:MachineComponentsType	O

The OptionalPlaceholder Object <ComponentsGroup> allows nesting this ObjectType to further categorize the referenced Components. It also allows adding concrete Component groups not defined by this specification.

The InstanceDeclarations of the ComponentsGroupType have additional Attributes defined in Table 16.

Table 16 – ComponentsGroupType Attribute values for child Nodes

SourcePath	Description Attribute
<ComponentsGroup>	All components of a specific type in a compressed air system as browsable objects.
ChargingSystems	Organizes all charging systems connected to the compressed air system.
Compressors	Organizes all compressors connected to the compressed air system.
CondensateDrains	Organizes all condensate drains connected to the compressed air system.
CondensateSeparators	Organizes all condensate separators connected to the compressed air system.
Converters	Organizes all converters connected to the compressed air system.
CoolingSystems	Organizes all cooling systems connected to the compressed air system.
Dryers	Organizes all dryers connected to the compressed air system.
Filters	Organizes all filters connected to the compressed air system.
HeatRecoverySystems	Organizes all heat recovery systems connected to the compressed air system.
Receivers	Organizes all receivers connected to the compressed air system.
Sensors	Organizes all sensors connected to the compressed air system.
Valves	Organizes all valves connected to the compressed air system.