The ValveOperationalType extends its supertype by valve specific Variables and is formally defined in Table 108.
Table 108 – ValveOperationalType Definition
|
Attribute |
Value |
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|
BrowseName |
ValveOperationalType |
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|
IsAbstract |
False |
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|
References |
Node Class |
BrowseName |
DataType |
TypeDefinition |
Other |
|
Subtype of the OperationalType defined in 7.45, i.e. inheriting the InstanceDeclarations of that Node. |
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|
0:HasComponent |
Variable |
ContinuousPosition |
0:Double |
0:BaseAnalogType |
O, RO |
|
0:HasComponent |
Variable |
PortUsed |
0:UInt16 |
0:DataItemType |
O, RO |
Continuous valves shall use the Variable ContinuousPosition and define the EngineeringUnits Property.
Switching valves shall use the Variable PortUsed and define the EngineeringUnits Property as well as the Definition Property.
The InstanceDeclarations of the ValveOperationalType have additional Attributes defined in Table 109.
Table 109 – ValveOperationalType Attribute values for child Nodes
|
Source Path |
Value Attribute |
Description Attribute |
|
ContinuousPosition |
|
Actual valve stroke. |
|
PortUsed |
|
Actual port used. |