OPC UA for Process Air Extraction and Filtration Systems (PAEFS)
7.5 FilterSystemType ObjectType Definition
7.5.1 Overview
The FilterSystemType serves the purpose of extracting and filtering process gas, e.g., air. It consists of several filter units and other devices and components. It is formally defined in Table 22.
Table 22 - FilterSystemType Definition
Attribute
Value
BrowseName
FilterSystemType
IsAbstract
False
References
Node Class
BrowseName
DataType
TypeDefinition
Other
Subtype of the BaseObjectType defined in OPC 10000-5
0:HasAddIn
Object
2:Identification
4:MachineIdentificationType
O
0:HasComponent
Object
4:MachineryBuildingBlocks
0:FolderType
O
0:HasComponent
Object
<FilterUnit>
FilterUnitType
MP
0:HasComponent
Object
AirIntakeConnection
AirConnectionType
M
0:HasComponent
Object
AirOutletConnection
AirConnectionType
M
0:HasComponent
Object
<FilterAidDevice>
FilterAidDeviceType
OP
0:HasComponent
Object
<Fan>
FanType
OP
0:HasComponent
Object
<SafetySystem>
SafetySystemType
OP
0:HasComponent
Object
<TemperatureRegulator>
TemperatureRegulatorType
OP
0:HasComponent
Object
PowerConsumption
ConsumptionType
O
0:HasComponent
Object
AirConsumption
ConsumptionType
O
0:HasProperty
Variable
MaintenanceRequested
0:Boolean
0:PropertyType
O,R
0:HasAddIn
Object
4:MachineryItemState
4:MachineryItemState_StateMachineType
M
0:HasProperty
Variable
ControlMode
ControlModeEnum
0:PropertyType
O,R
0:HasComponent
Method
OperationOn
O
0:HasComponent
Method
OperationOff
O
0:HasProperty
Variable
Malfunction
0:Boolean
0:PropertyType
M,R
0:HasComponent
Object
PressureLoss
SensorMonitoringType
O
0:GeneratesEvent
ObjectType
MaintenanceRequestedConditionType
0:GeneratesEvent
ObjectType
MalfunctionAlarmType
0:HasInterface
ObjectType
2:IOperationCounterType
Applied from IOperationCounterType
0:HasProperty
Variable
PowerOnDuration
0:Duration
0:PropertyType
O
0:HasProperty
Variable
OperationDuration
0:Duration
0:PropertyType
O
0:HasProperty
Variable
OperationCycleCounter
0:UInteger
0:PropertyType
O
Conformance Units
PAEFS FilterSystemType Basic
PAEFS FilterSystemType Advanced
PAEFS FilterSystem Machine Identification
PAEFS FilterSystem Statemachine
PAEFS Operation FilterSystemType
PAEFS FilterSystemType Events
Table 23 - FilterSystemType Attribute values for child nodes
BrowsePath
Attribute Description
2:Identification
Data for identification (OPC 40001-1): The FilterSystem should only have an Identification folder if the system as a whole is considered a machine. If the individual filter units are considered machines, the FilterSystem should not have an Identification folder.
2:Identification
NominalAirflow
The nominal airflow of the filter system is the value specified by the manufacturer which defines the nominal extraction capacity of a unit under operating conditions.
2:Identification
ExIdentification
The marking on the type plate of the filter system regarding explosion protection.
2:Identification
RatedPower
The rated power of the filter system is the nominal electrical power of the unit under operating conditions specified by the manufacturer.
<FilterUnit>
All filter units of the system.
AirIntakeConnection
The connection to the ducting system from which the process gas enters the filter system.
AirOutletConnection
The connection to the ducting system to which the cleaned process gas leaves the filter system.
<FilterAidDevice>
All filter aid devices that are used on the server.
<Fan>
All fans used on the server.
<SafetySystem>
All safety systems used on the server.
<TemperatureRegulator>
All temperature regulators used on the server.
PowerConsumption
Contains information regarding the energy consumption of the filter system.
AirConsumption
Contains information regarding the consumption of compressed air of the filter system.
MaintenanceRequested
The maintenance request allows the manufacturer to inform the operator that the system requires maintenance. True = maintenance requested by system. False = no maintenance requested.
4:MachineryItemState
StateMachine representing the operating state of the filter system (OPC 40001-1).
ControlMode
Operating mode that describes whether the system can be controlled externally. Possible values are manual, auto and other.
Malfunction
Malfunction describes that the filter system has a collective fault message. True in case of error.
PressureLoss
Specification of the current total pressure loss of the filter system between the device intake connection on the raw gas side and the device outlet on the clean gas side.
The server sends a MalfunctionAlarmType event when the Malfunction property changes.
The MaintenanceRequestedConditionType is triggered when the MaintenanceRequested property changes.
The components of the FilterSystemType have additional subcomponents which are defined in Table 24.
The components of the FilterSystemType have additional references which are defined in Table 25.
Table 25 - FilterSystemType Additional References
SourceBrowsePath
Reference Type
Is Forward
TargetBrowsePath
4:MachineryBuildingBlocks
0:HasAddIn
True
2:Identification
4:MachineryBuildingBlocks
0:HasAddIn
True
4:MachineryItemState
7.5.2 OperationOn Method
The Method OperationOn turns the filter system machine on. It should only be available on the filter system if the filter units are considered components of the filter system and do not have their own OperationOn and OperationOff methods. The method changes the state of MachineryItemState. The signature of this Method is specified below. Table 26 specifies the AddressSpace representation.
The Method OperationOff turns the filter system machine off. As with the OperationOn method, this method should be present under the FilterSystemType if and only if the filter units are considered components of the system rather than individual machines. The method changes the state of MachineryItemState. The signature of this Method is specified below. Table 27 specifies the AddressSpace representation.
This building block provides information about the state of a MachineryItem. It defines the states NotAvailable, OutOfService, NotExecuting and Executing. The exact semantics of the states are defined in OPC 40001-1. The StateMachine defines Transitions between all States. Instances might restrict the usage of the defined States and Transitions. An overview of the StateMachine is provided in Figure 15.
