The DriveMeasurementsType provides Variables used for measurements performed at a Pump drive and is formally defined in Table 106. For the generation of events, the DriveMeasurementsType has a reference to the 0:LimitAlarmType. The InputNode Property of the Alarm shall contain the NodeId of the Component. Measurements defined in this ObjectType have an additional Subcomponent with the TypeDefinition 0:PropertyType and the BrowseName KindOfQuantity defined in Table 107. In this Variables the measurements can be matched to a physical quantity. To comply with this Companion Specification, the default values for the Property 0:EngineeringUnits and the Property KindOfQuantity provided in Table 108 should be used. The values should be sensible to the use of the application.

Table 106 – DriveMeasurementsType Definition

Attribute

Value

BrowseName

DriveMeasurementsType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

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

0:HasComponent

Variable

Current

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

DCLinkCurrent

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

DCLinkVoltage

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

DriverPowerInput

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

EnergyConsumption

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

Frequency

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

MotorCurrent

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

MotorEfficiency

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

MotorTemperature

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

MotorVoltage

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

PowerFactor

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

Torque

0:Double

0:BaseAnalogType

O, RO

0:HasComponent

Variable

Voltage

0:Double

0:BaseAnalogType

O, RO

0:GeneratesEvent

ObjectType

0:LimitAlarmType

Defined in OPC 10000-9

Table 107 – DriveMeasurementsType Additional Subcomponents

Source Path

References

NodeClass

BrowseName

DataType

TypeDefinition

Other

Current

0:HasProperty

Variable

KindOfQuantity

0:String

0:PropertyType

O, RO

DCLinkCurrent

0:HasProperty

Variable

KindOfQuantity

0:String

0:PropertyType

O, RO

DCLinkVoltage

0:HasProperty

Variable

KindOfQuantity

0:String

0:PropertyType

O, RO

DriverPowerInput

0:HasProperty

Variable

KindOfQuantity

0:String

0:PropertyType

O, RO

EnergyConsumption

0:HasProperty

Variable

KindOfQuantity

0:String

0:PropertyType

O, RO

Frequency

0:HasProperty

Variable

KindOfQuantity

0:String

0:PropertyType

O, RO

MotorCurrent

0:HasProperty

Variable

KindOfQuantity

0:String

0:PropertyType

O, RO

MotorEfficiency

0:HasProperty

Variable

KindOfQuantity

0:String

0:PropertyType

O, RO

MotorTemperature

0:HasProperty

Variable

KindOfQuantity

0:String

0:PropertyType

O, RO

MotorVoltage

0:HasProperty

Variable

KindOfQuantity

0:String

0:PropertyType

O, RO

PowerFactor

0:HasProperty

Variable

KindOfQuantity

0:String

0:PropertyType

O, RO

Torque

0:HasProperty

Variable

KindOfQuantity

0:String

0:PropertyType

O, RO

Voltage

0:HasProperty

Variable

KindOfQuantity

0:String

0:PropertyType

O, RO

The InstanceDeclarations of the DriveMeasurementsType have additional Attributes defined in Table 108. The Variables and the associated Descriptions are based on the standards VDMA 24223 and DIN EN ISO 17769-1.

Table 108 – DriveMeasurementsType Attribute values for child Nodes

BrowsePath

Value Attribute

Description Attribute

Current

Measured consumed mains current of the whole unit of the motor.

Current

0:EngineeringUnits

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

UnitId: 4279632

DisplayName: A

Description: ampere

Current

KindOfQuantity

“electric current”

Scalar quantity equal to the flux of the electric current density J through a given directed surface S

DCLinkCurrent

Measured actual electrical dc current of the converter.

DCLinkCurrent

0:EngineeringUnits

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

UnitId: 4279632

DisplayName: A

Description: ampere

DCLinkCurrent

KindOfQuantity

“electric current”

Scalar quantity equal to the flux of the electric current density J through a given directed surface S

DCLinkVoltage

Measured actual electrical dc voltage of the converter.

DCLinkVoltage

0:EngineeringUnits

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

UnitId: 5655636

DisplayName: V

Description: volt

DCLinkVoltage

KindOfQuantity

“voltage”

Scalar quantity equal to the line integral of the electric field strength E along a specific path linking two points a and b

DriverPowerInput

Measured power absorbed by the motor.

DriverPowerInput

0:EngineeringUnits

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

UnitId: 5723220

DisplayName: W

Description: watt

DriverPowerInput

KindOfQuantity

“power”

Derivative with respect to time t of energy E being transferred or transformed

EnergyConsumption

Measured energy consumption of the unit of the motor.

EnergyConsumption

0:EngineeringUnits

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

UnitId: 4869973

DisplayName: J

Description: joule

EnergyConsumption

KindOfQuantity

“energy“

Ability of a system to do work

Frequency

Measured output frequency of the frequency converter.

Frequency

0:EngineeringUnits

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

UnitId: 4740186

DisplayName: Hz

Description: hertz

Frequency

KindOfQuantity

“frequency”

Inverse of one cycle of a periodic event

MotorCurrent

Measured actual motor current.

MotorCurrent

0:EngineeringUnits

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

UnitId: 4279632

DisplayName: A

Description: ampere

MotorCurrent

KindOfQuantity

“electric current”

Scalar quantity equal to the flux of the electric current density J through a given directed surface S

MotorEfficiency

Determined proportion of the motor power input P_mot delivered as pump power input P_mot, u

MotorEfficiency

0:EngineeringUnits

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

UnitId: 20529

DisplayName: %

Description: percent

MotorEfficiency

KindOfQuantity

“ratio”

Quotient of two numbers or two quantities of the same kind

MotorTemperature

Measured temperature of the motor.

MotorTemperature

0:EngineeringUnits

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

UnitId: 4932940

DisplayName: K

Description: kelvin

MotorTemperature

KindOfQuantity

“temperature”

Quantity representing a temperature value

MotorVoltage

Measured actual motor voltage.

MotorVoltage

0:EngineeringUnits

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

UnitId: 5655636

DisplayName: V

Description: volt

MotorVoltage

KindOfQuantity

“voltage”

Scalar quantity equal to the line integral of the electric field strength E along a specific path linking two points a and b

PowerFactor

Determined power factor of the motor.

PowerFactor

KindOfQuantity

“rational number”

Element of a set of mathematical entities that includes all integers and other entities, each defined as the quotient of two integers, such that the division is defined for any two entities, except zero as a divisor

Torque

Measured torque of the motor.

Torque

0:EngineeringUnits

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

UnitId: 20053

DisplayName: N·m

Description: newton metre

Torque

KindOfQuantity

“moment of force”

Vector quantity described by the vector product M=r * F where r is position vector with respect to the axis of rotation and F is force

Voltage

Measured actual mains voltage of the motor.

Voltage

0:EngineeringUnits

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

UnitId: 5655636

DisplayName: V

Description: volt

Voltage

KindOfQuantity

“voltage”

Scalar quantity equal to the line integral of the electric field strength E along a specific path linking two points a and b