The AirnetType is the representation of an Airnet and provides both Objects for Quantities and FunctionalGroups. It is illustrated in Figure 19 and formally defined in Table 17.
Figure 19 – AirnetType Illustration
Table 17 – AirnetType Definition
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Attribute |
Value |
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BrowseName |
AirnetType |
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IsAbstract |
False |
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References |
Node Class |
BrowseName |
DataType |
TypeDefinition |
Other |
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Subtype of the 2:TopologyElementType defined in OPC 10000-100, i.e. inheriting the InstanceDeclarations of that Node. |
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0:HasComponent |
Object |
Ambient |
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FluidQuantitiesType |
O |
|
0:HasComponent |
Object |
4:Components |
|
AirnetComponentsType |
O |
|
0:HasComponent |
Object |
2:Configuration |
|
AirnetConfigurationType |
O |
|
0:HasComponent |
Object |
ElectricalCircuit |
|
ElectricalCircuitType |
O |
|
0:HasComponent |
Object |
2:Operational |
|
AirnetOperationalType |
O |
|
0:HasComponent |
Object |
ProcessFluidCircuit |
|
FluidCircuitType |
O |
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The following nodes override nodes added by the 2:TopologyElementType |
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0:HasComponent |
Object |
2:Identification |
|
CASIdentificationType |
M |
The optional Object Ambient provides Quantities for the ambient air conditions at an Airnet. Of the optional Variables of the FluidQuantitiesType only AbsolutePressure, DewPoint, RelativeHumidity, and Temperature are available.
The optional Folder Components provides Folders for organizing Components connected to the Airnet. Usually, the Components are grouped by their DeviceClass and shall be referenced by using the Organizes ReferenceType. The concrete instance of a Component shall be instantiated in the Components Folder of the CASType instance.
Figure 20 shows an example on how to instantiate the FunctionalGroup Components for an Airnet in the AddressSpace of an OPC UA Server.
Figure 20 – Airnet Components Example
The optional FunctionalGroup Configuration provides Variables for configuring the behavior of an Airnet.
The optional Object ElectricalCircuit provides Quantities for the electrical ports of an Airnet.
The mandatory FunctionalGroup Identification provides Properties to identify an Airnet.
The optional FunctionalGroup Operational provides Variables for process data used during normal operation of an Airnet, such as measurements, efficiencies, and states.
The optional Object ProcessFluidCircuit provides static design information about the process fluid as well as Quantities for the process fluids inlets, outlets, and delta of an Airnet.
The InstanceDeclarations of the AirnetType have additional Attributes defined in Table 18.
Table 18 – AirnetType Attribute values for child Nodes
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Source Path |
Value Attribute |
Description Attribute |
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Ambient |
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Measurements and calculations of ambient air at the topology element. |
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Measured or calculated actual absolute pressure of the environment in which the component, piping or system is working. |
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Measured or calculated actual dew point of the environment in which the component, piping or system is working. |
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Measured or calculated actual relative humidity of the environment in which the component, piping or system is working. |
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Measured or calculated actual temperature of the environment in which the component, piping or system is working. |
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4:Components |
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Organizes components assigned to the airnet. |
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2:Configuration |
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Configure the behavior of the topology element. |
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ElectricalCircuit |
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Measurements and calculations of the electrical ports and delta of the topology element. |
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2:Identification |
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Identification properties of the topology element. |
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2:Operational |
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Data for normal operation of the topology element. |
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ProcessFluidCircuit |
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Measurements and calculations of the process fluid ports and delta of the topology element. |
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Enumeration of possible process fluid types. |