7 OPC UA ObjectTypes

7.9 CompressorType ObjectType Definition

The CompressorType is the representation of a compressor and extends its supertype by specific Nodes. According to EN 1012-1/ISO/DIS 18623-1, a compressor compresses a gas or vapor media to a pressure higher than that at the inlet. It is illustrated in Figure 23 and formally defined in Table 27.

Figure 23 – CompressorType Illustration

Table 27 – CompressorType Definition

Attribute	Value
BrowseName	CompressorType
IsAbstract	False
References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the CASComponentType defined in 7.7, i.e. inheriting the InstanceDeclarations of that Node.
The following nodes override nodes added by the CASComponentType
0:HasComponent	Object	Design		CompressorDesignType	O
0:HasComponent	Object	2:Identification		4:MachineIdentificationType	M
0:HasComponent	Object	2:Operational		CompressorOperationalType	O
0:HasComponent	Object	2:Statistics		CompressorStatisticsType	O

The InstanceDeclarations of the CompressorType have additional Attributes defined in Table 28.

Table 28 – CompressorType Attribute values for child Nodes

Source Path	Value Attribute	Description Attribute
2:Identification    2:DeviceClass	“Compressor”	Domain or for what purpose this item is used.