ConductivitySignalType – OPC UA for Process Automation Devices

7.35 ConductivitySignalType

The ConductivitySignalType provides ObjectType to add conductivity measurement specific variables. It is formally defined in Table 184.

Table 184 – ConductivitySignalType definition

Attribute	Value
BrowseName	ConductivitySignalType
IsAbstract	False

References	NodeClass	BrowseName	TypeDefinition	Other
Subtype of AnalyticalSignalType defined in 7.27, i.e. inheriting the InstanceDeclarations of that Node
0:HasComponent	Object	<SignalCalibrationIdentifier>	0:BaseObjectType	OP
0:HasComponent	Object	SignalConditionSet	0:BaseObjectType	O

Conformance Units
PA-DIM ConductivitySignalType
PA-DIM ConductivitySignalType SensorCleaningsCounter
PA-DIM ConductivitySignalType SensorSterilisationsCounter

<SignalCalibrationIdentifier> is a container object for the calibration parameters of the signal. It is inherited from AnalogSignalType and has an additional interface reference to IConductivityCalibrationType to add conductivity signal specific calibration variables. Since it is a placeholder, an instance of ConductivitySignalType can have several calibration objects.

SignalConditionSet is a container object for the condition parameters of the signal. It is inherited from AnalogSignalType and has an additional interface reference to IConductivitySignalConditionSetType to add conductivity signal specific condition variables.

The components of ConductivitySignalType have additional references which are defined in Table 185.

Table 185 – ConductivitySignalType additional References

SourceBrowsePath	Reference Type	Is Forward		TargetBrowsePath
<SignalCalibrationIdentifier>	0:HasInterface	True		IConductivityCalibrationType
	0:HasDictionaryEntry	True	3:0112/2///61987#ABA968#004
SignalConditionSet	0:HasInterface	True		IConductivitySignalConditionSetType
	0:HasDictionaryEntry	True	3:0112/2///61987#ABA968#004

The components of ConductivitySignalType have additional subcomponents which are defined in Table 186.

Table 186 – ConductivitySignalType additional subcomponents

BrowsePath	References	NodeClass	BrowseName	DataType	TypeDefinition	Others
Applied from IConductivityCalibrationType
<SignalCalibrationIdentifier>	0:HasComponent	Variable	ConductivityCellConstant	0:Float	0:AnalogUnitType	O
Applied from IConductivitySignalConditionSetType
SignalConditionSet	0:HasComponent	Variable	ConductivityMeasuringMethod	0:UInt32	0:MultiStateDictionaryEntryDiscreteType	O
SignalConditionSet	0:HasComponent	Variable	SensingElementTemperature	0:Float	0:AnalogUnitType	O
SignalConditionSet	0:HasComponent	Variable	TemperatureCompensationStyle	0:UInt32	0:MultiStateDictionaryEntryDiscreteType	O
SignalConditionSet	0:HasProperty	Variable	SensorCleaningsCounter	0:UInt32	0:PropertyType	O
SignalConditionSet	0:HasProperty	Variable	SensorSterilisationsCounter	0:UInt32	0:PropertyType	O

The child Nodes of the ConductivitySignalType have additional Attribute values defined in Table 187.

Table 187 – ConductivitySignalType Attribute values for child Nodes

BrowsePath	Value Attribute
	0.0
	NamespaceUri: http://www.opcfoundation.org/UA/units/cdd/IEC62720 UnitId: 705744658 DisplayName: cm⁻¹ Description: reciprocal centimetre
	0
	ns=3;s=0112/2///61987#ABP721#001
	inductive
	0.0
	NamespaceUri: http://www.opcfoundation.org/UA/units/cdd/IEC62720 UnitId: 705741427 DisplayName: °C Description: degree Celsius
	0
	ns=3;s=0112/2///61987#ABP724#001
	no temperature compensation
	0
	0