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 |
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|
BrowseName |
TCDSpecificationType |
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|
IsAbstract |
False |
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|
References |
Node Class |
BrowseName |
DataType |
TypeDefinition |
Other |
|
Subtype of 0:BaseObjectType defined in OPC UA Part 5 |
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|
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”