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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.

   OnOff
   0:FalseState
   
“The dryer is switched off.”  

   OnOff
   0:TrueState
   
“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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