The PrecursorSystemType provides all relevant Variables and parameters for monitoring a precursor system of a plasma surface treatment machine. An overview of the information model is shown in Figure 13.
Figure 13 - PrecursorSystemType overview
The PrecursorSystemType is formally defined in Table 35.
Table 35 – PrecursorSystemType Definition
| 
 Attribute  | 
        
 Value  | 
||||
| 
 BrowseName  | 
        
 PrecursorSystemType  | 
||||
| 
 IsAbstract  | 
        
 False  | 
||||
| 
 References  | 
        
 Node Class  | 
        
 BrowseName  | 
        
 DataType  | 
        
 TypeDefinition  | 
        
 Other  | 
| 
 Subtype of the BaseObjectType defined in OPC 10000-5  | 
|||||
| 
 0:HasAddIn  | 
        
 Object  | 
        
 2:Identification  | 
        
 
  | 
        
 4:MachineryComponentIdentificationType  | 
        
 O  | 
| 
 0:HasAddIn  | 
        
 Object  | 
        
 4:Components  | 
        
 
  | 
        
 4:MachineComponentsType  | 
        
 M  | 
| 
 0:HasComponent  | 
        
 Object  | 
        
 4:Monitoring  | 
        
 
  | 
        
 4:MonitoringType  | 
        
 M  | 
| 
 0:HasComponent  | 
        
 Object  | 
        
 4:MachineryBuildingBlocks  | 
        
 
  | 
        
 0:FolderType  | 
        
 M  | 
| 
 Conformance Units  | 
|||||
| 
 PST PrecursorSystemType Basic  | 
|||||
| 
 PST PrecursorSystemType Advanced  | 
|||||
Identification is used as defined in OPC 40001-1 and shall also be referenced as AddIn in the MachineryBuildingBlocks Folder.
Components is representing a collection of all physical components of the precursor system of a plasma surface treatment machine.
Monitoring is representing a collection of the variables that are assigned to this specific component.
MachineryBuildingBlocks is representing a folder that directly references all those building blocks of the OPC UA for Machinery (OPC 40001-1, OPC 40001-3) which are implemented as an add-in in this specific component.
The components of the PrecursorSystemType have additional references which are defined in Table 36.
Table 36 – PrecursorSystemType Additional References
| 
 SourceBrowsePath  | 
        
 Reference Type  | 
        
 Is Forward  | 
        
 TargetBrowsePath  | 
| 
 4:MachineryBuildingBlocks  | 
        
 0:HasAddIn  | 
        
 True  | 
        
 2:Identification  | 
| 
 4:MachineryBuildingBlocks  | 
        
 0:HasAddIn  | 
        
 True  | 
        
 4:Components  | 
| 
 4:MachineryBuildingBlocks  | 
        
 0:HasAddIn  | 
        
 True  | 
        
 4:Monitoring  | 
The components of the PrecursorSystemType have additional subcomponents which are defined in Table 37.
Table 37 – PrecursorSystemType Additional Subcomponents
| 
 Source Path  | 
        
 Reference  | 
        
 NodeClass  | 
        
 BrowseName  | 
        
 DataType  | 
        
 TypeDefinition  | 
        
 Others  | 
||
 
  | 
        
 0:HasComponent  | 
        
 Variable  | 
        
 PrimaryPressureControl  | 
        
 0:Double  | 
        
 0:AnalogUnitType  | 
        
 O, RO  | 
||
| 
 4:Components  | 
        
 0:HasComponent  | 
        
 Object  | 
        
 <PrecursorRegulator>  | 
        
 
  | 
        
 RegulatorType  | 
        
 OP  | 
PrimaryPressureControl is representing the prepressure of the precursor system.
PrecursorRegulator is representing an instance of a single precursor regulator of the gas system.