7.7 STSysVesselType ObjectType Definition
The STSysVesselType provides relevant variables and parameters for controlling and monitoring a vessel of a material supply system. As the Components Object of the STSysVesselType is optional, a simple vessel without any additional components can also be represented by this ObjectType.
The STSysVesselType is formally defined in Table 33.
| Attribute | Value | ||||
| BrowseName | STSysVesselType | ||||
| IsAbstract | False | ||||
| References | Node Class | BrowseName | DataType | TypeDefinition | Other |
|---|---|---|---|---|---|
| Subtype of the 5:STSysType defined in OPC 40700 | |||||
| 0:HasComponent | Object | 4:Monitoring | 4:MonitoringType | O | |
| 0:HasAddIn | Object | 4:Components | 4:MachineComponentsType | O | |
| 0:HasComponent | Object | 5:Description | 0:FolderType | O | |
| Conformance Units | |||||
|---|---|---|---|---|---|
| MSS STSysVesselType Basic | |||||
| MSS STSysVesselType Monitoring | |||||
| MSS STSysVesselType Components | |||||
| MSS STSysVesselType Description |
Monitoring represents a collection of ObjectTypes and VariableTypes, representing the current state of the process that are assigned to the component.
Components represents a collection of ObjectTypes that are representing components of the vessel.
Description represents a collection of ObjectTypes and VariableTypes that describe the vessel. This may be information that is not an identifier for the system and that is static in character but must be stored on the server for some use cases. One example is the mesh size of a sieve, which does not vary but can be queried by cooperating systems.
The components of the STSysVesselType have additional subcomponents which are defined in Table 34.
| Source Path | Reference | NodeClass | BrowseName | DataType | TypeDefinition | Others | ||
| 4:Components | 0:HasComponent | Object | <Stirrer> | STCompStirrerType | OP | |||
| 4:Components | 0:HasComponent | Object | <Heater> | STCompHeaterType | OP | |||
| 4:Components | 0:HasComponent | Object | <Valve> | STCompProcessValveType | OP | |||
| 0:HasComponent | Object | FillVolume | 6:ProcessValueType | O | |||
| 0:HasComponent | Object | RelativePressure | 6:ProcessValueType | O | |||
| 0:HasComponent | Object | Temperature | 6:ProcessValueType | O | |||
| 5:Description | 0:HasComponent | Variable | VesselVolume | 0:Double | 0:AnalogUnitType | O |
Stirrer describes a stirrer/agitator of a material supply system, its setpoints and the current readings.
Heater describes the material temperature control, the setpoints and the current readings.
Valve describes a valve, its setpoints and the current readings.
FillVolume represents the quantity, either by volume or by weight, of coating material in the vessel.
RelativePressure represents the measured pressure of the vessel as difference compared to atmospheric pressure. It can also include the upper and lower design pressure of the vessel.
Temperature represents the measured temperature of the material in the vessel. Ideally the measurement point is close to the point of outflow. It can also include the upper and lower design temperature of the vessel.
VesselVolume represents the usable volume of the vessel.