The CompressorOperationalType extends its supertype by compressor specific Variables and is formally defined in Table 99.
Table 99 – CompressorOperationalType Definition
|
Attribute |
Value |
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|
BrowseName |
CompressorOperationalType |
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|
IsAbstract |
False |
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|
References |
Node Class |
BrowseName |
DataType |
TypeDefinition |
Other |
|
Subtype of the OperationalType defined in 7.45, i.e. inheriting the InstanceDeclarations of that Node. |
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|
0:HasComponent |
Variable |
ActivePressureBand |
0:UInt16 |
0:DataItemType |
O, RO |
|
0:HasComponent |
Variable |
FlowRateRatio |
0:Double |
0:BaseAnalogType |
O, RO |
|
0:HasComponent |
Variable |
IsentropicEfficiency |
0:Double |
0:BaseAnalogType |
O, RO |
|
0:HasComponent |
Variable |
SpecificEnergyRequirement |
0:Double |
0:BaseAnalogType |
O, RO |
|
|
|
|
|
|
|
|
The following nodes override nodes added by the OperationalType |
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|
0:HasComponent |
Variable |
OperatingState |
CompressorOperatingStateEnum |
0:DataItemType |
O, RO |
The following illustration of a state machine does not imply the actual function or state machine for a compressor. It serves as an example of how the actual state machines may function.
Figure 32 – CompressorOperationalType State Machine Illustration
The InstanceDeclarations of the CompressorOperationalType have additional Attributes defined in Table 100.
Table 100 – CompressorOperationalType Attribute values for child Nodes
|
Source Path |
Value Attribute |
Description |
|
ActivePressureBand |
|
Indicates the actual active pressure band. |
|
FlowRateRatio |
|
Calculated ratio of actual and maximum possible flow rate of a compressor. |
|
IsentropicEfficiency |
|
Calculated isentropic efficiency. |
|
OperatingState |
|
Actual operating state of the compressor. |
|
SpecificEnergyRequirement |
|
Calculated shaft input energy per unit of compressor actual rate of flow. |