This OPC UA ObjectType is used representing the basic specification of a TCD temperature control device with its subcomponents. It is formally defined in Table 2.

Table 2 – TCDSpecificationType Definition

Attribute

Value

BrowseName

TCDSpecificationType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of 0:BaseObjectType defined in OPC UA Part 5

0:HasComponent

Variable

MaxTemperature

0:Int32

0:AnalogItemType

M, RO

0:HasComponent

Variable

PowerValue

0:Double

0:AnalogItemType

M, RO

0:HasComponent

Variable

ConnectedLoad

0:Double

0:AnalogItemType

M, RO

0:HasComponent

Variable

NominalFlowRate

0:Double

0:AnalogItemType

M, RO

0:HasComponent

Variable

CoolingCapacity

0:UInt32

0:AnalogItemType

O, RO

0:HasProperty

Variable

DeviceZoneId

0:String

0:PropertyType

O, RO

Description:Defines the maximum working temperature of the TCD

Unit: °C or °F

Example:160

Description:Power value, defines the heating capacity of the TCD with the rated voltage

Unit: kW

Example: 8

Description:Connected load, defines the connections of the TCD (pump performance, heating capacity and performance of the remaining components)

Unit: kW

Example: 10.2

Description:Nominal flow rate, defines the maximum achievable flow rate of the TCD

Unit: l/min, gal/min or ft³/min

Example: 45

Description:Power value for cooling, defines the power value for cooling at temperature difference 60 K between cooling water and heat transfer medium

Unit: kW

Example:30

Description:As written in 4.1, for a TCD with several device zones, there shall be several instances of TCD_InterfaceType with one object DeviceZone each. In this case, the DeviceZoneId shall be used to identify the different device zones.

Example:“A”