The GeneralMaintenanceTypeprovides Variablesthat are used for general maintenance applications and is formally defined in Table 21.

Table 21– GeneralMaintenanceType Definition

Attribute

Value

BrowseName

GeneralMaintenanceType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the 2:FunctionalGroupTypedefined in OPC 10000-100, i.e. inheriting the InstanceDeclarations of that Node.

0:HasComponent

Variable

ActiveMaintenanceTime

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

DownTime

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

ExternalDisabledTime

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

FailureRate

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

IdleTime

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

MaintenanceLevel

MaintenanceLevelEnum

0:DataItemType

O, RO

0:HasComponent

Variable

MaintenanceTime

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

MeanOperatingTimeBetweenFailures

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

MeanRepairTime

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

MeanTimeToRestauration

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

Obsolescence

0:Boolean

0:TwoStateDiscreteType

O, RO

0:HasComponent

Variable

OperatingTime

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

OperatingTimeBetweenFailures

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

OperatingTimeToFailure

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

RepairTime

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

StandbyTime

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

StateOfTheItem

StateOfTheItemEnum

0:DataItemType

O, RO

0:HasComponent

Variable

TimeBetweenFailures

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

TimeToRestoration

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

UpTime

0:Double

0:BaseAnalogType

O, RO

The InstanceDeclarationsof the GeneralMaintenanceTypehave additional Attributesdefined in Table 22. The Variablesand the associated Descriptionsare based on the standards ISO 13372 and DIN EN 13306.

Table 22– GeneralMaintenanceType Attribute values for child Nodes

BrowsePath

Value Attribute

Description Attribute

ActiveMaintenanceTime

Part of the maintenance time when active maintenance is carried out on an item.

ActiveMaintenanceTime

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

DownTime

Measured time interval throughout which an item is in a down state

DownTime

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

ExternalDisabledTime

Measured time interval throughout which an item is in an external disabled state

ExternalDisabledTime

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

FailureRate

Number of failures within a population divided by the number of life units used by that population

FailureRate

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 20529

DisplayName: %

Description: percent

IdleTime

Measured time interval throughout which an item is in an idle state

IdleTime

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

MaintenanceLevel

Maintenance task categorization by complexity

MaintenanceTime

Time interval when maintenance is carried out on an item including technical, logistic and internal administrative delays

MaintenanceTime

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

MeanOperatingTimeBetweenFailures

Average of the operating times between failures

MeanOperatingTimeBetweenFailures

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

MeanRepairTime

Average of the repair times

MeanRepairTime

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

MeanTimeToRestauration

Average of the time to restauration

MeanTimeToRestauration

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

Obsolescence

Inability of an item to be maintained due to the unavailability on the market of the necessary resources at acceptable technical and/or economic conditions. A "True" status means that the pump is obsolete and a "False" status means that the pump is not obsolete.

OperatingTimeBetweenFailures

Operating time between consecutive failures

OperatingTimeBetweenFailures

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

OperatingTime

Measured time interval throughout which an item is in operating state

OperatingTime

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

OperatingTimeToFailure

Operating time accumulated from the first use, or from restoration, until failure

OperatingTimeToFailure

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

RepairTime

Part of corrective maintenance time when repair is carried out on an item.

RepairTime

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

StandbyTime

Measured time interval throughout which an item is in a standby state

StandbyTime

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

StateOfTheItem

Current state of the item

TimeBetweenFailures

Duration between consecutive failures

TimeBetweenFailures

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

TimeToRestoration

Time interval, from the instant of failure, until restoration

TimeToRestoration

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour

UpTime

Measured time interval throughout which an item is in an up state

UpTime

0:EngineeringUnits

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 4740434

DisplayName: h

Description: hour