The TwoStateDiscreteControlVariableType is a subtype of the TwoStateDiscreteSignalVariableType. It is formally defined in Table 199.
Table 199 – TwoStateDiscreteControlVariableType definition
|
Attribute |
Value |
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|
BrowseName |
TwoStateDiscreteControlVariableType |
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|
IsAbstract |
False |
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|
ValueRank |
−2 (−2 = ‘Any’) |
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|
DataType |
Boolean |
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|
References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
Other |
|
Subtype of TwoStateDiscreteSignalVariableType defined in 8.15, i.e. inheriting the InstanceDeclarations of that Node |
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|
0:HasComponent |
Variable |
Setpoint |
0:Boolean{Any} |
0:TwoStateDiscreteType |
M |
|
0:HasComponent |
Variable |
OperatingDirection |
0:UInt32 |
0:MultiStateDictionaryEntryDiscreteType |
M |
|
0:HasComponent |
Variable |
FaultState |
0:Boolean |
0:TwoStateDiscreteType |
O |
|
0:HasDictionaryEntry |
Object |
3:0112/2///61987#ABP541#001 |
|
0:IrdiDictionaryEntryType |
|
|
Conformance Units |
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|
PA-DIM TwoStateDiscreteControlVariable |
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|
PA-DIM TwoStateDiscreteControlVariable FaultState |
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This type defines control which is used for two state discrete output.
Setpoint: ABP542#001 defines in a control loop, the two-state target value the process value is intended to assume.
OperatingDirection: ABD740#002 defines output change to a given input signal, for example direct or reverse.
FaultState: ABP543#001 defines replacement value of a two-state output in the case of a failure.
ABP541#001 defines two-state readback value in a control loop. The components of TwoStateDiscreteControlVariableType have additional references which are defined in Table 200.
Table 200 – TwoStateDiscreteControlVariableType additional References
|
SourceBrowsePath |
Reference Type |
Is Forward |
TargetBrowsePath |
|
Setpoint |
0:HasDictionaryEntry |
True |
3:0112/2///61987#ABP542#001 |
|
OperatingDirection |
0:HasDictionaryEntry |
True |
|
|
FaultState |
0:HasDictionaryEntry |
True |
3:0112/2///61987#ABP543#001 |
The child Nodes of the TwoStateDiscreteControlVariableType have additional Attribute values defined in Table 201.
Table 201 – TwoStateDiscreteControlVariableType Attribute values for child Nodes
|
BrowsePath |
Value Attribute |
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|
Setpoint |
False |
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|
FALSE |
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|
TRUE |
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|
OperatingDirection |
0 |
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|
ns=3;s=0112/2///61987#ABL147#001 |
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|
direct |
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|
FaultState |
False |
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|
FALSE |
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|
TRUE |