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7.50 DryerOperationalType ObjectType Definition ToC Previous Next

The DryerOperationalType extends its supertype by dryer specific Variables and is formally defined in Table 106.

Table 106 – DryerOperationalType Definition

Attribute Value        
BrowseName DryerOperationalType        
IsAbstract False        
References Node Class BrowseName DataType TypeDefinition Other
Subtype of the OperationalType defined in 7.45, i.e. inheriting the InstanceDeclarations of that Node.          
0:HasComponent Variable PressureDewPoint 0:Double 0:BaseAnalogType O, RO
The following nodes override nodes added by the OperationalType          
0:HasComponent Variable OnOff 0:Boolean 0:TwoStateDiscreteType O, RO
0:HasComponent Variable OperatingState DryerOperatingStateEnum 0:DataItemType O, RO

The following illustrations of a state machines do not imply the actual function or state machines for dryers. It serves as an example of how the actual state machines may function.

readme_files/image041.png Figure 33 –DryerOperationalType Adsorption Dryer State Machine Illustration

readme_files/image042.png Figure 34 –DryerOperationalType Refrigerant Dryer State Machine Illustration

readme_files/image043.png Figure 35 –DryerOperationalType Membrane Dryer State Machine Illustration

The InstanceDeclarations of the DryerOperationalType have additional Attributes defined in Table 107.

Table 107 – DryerOperationalType Attribute values for child Nodes

Source Path Value Attribute Description Attribute
OnOff   Actual OnOff state of the dryer. For membrane dryers this describes the state of the controller.

“The dryer is switched off.”  

“The dryer is switched on.”  
OperatingState   Actual operating state of the dryer.
PressureDewPoint   Measured or calculated actual pressure dew point of the process fluid at a dryer.

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