The ContinuousScaleType defines the structure of an Object of the ContinuousScaleType. Figure 35 shows the hierarchical structure and details of the composition. It is formally defined in Table 63.
An Object of the ContinuousScaleType represents a continuous scale. These types of scales control a continuous material output, i.e., the material output at a given flow rate. It defines additional methods and properties required for managing the continuous scale.
Figure 35 - Overview ContinuousScaleType
Table 63 - ContinuousScaleType Definition
|
Attribute |
Value |
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|
BrowseName |
ContinuousScaleType |
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|
IsAbstract |
False |
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|
References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
ModellingRule |
|
Subtype of the ScaleDeviceType |
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|
0:HasComponent |
Object |
<Totalizer> |
|
TotalizerType |
Optional Placeholder |
|
0:HasComponent |
Variable |
ControlMagnitude |
0:Number |
0:AnalogUnitType |
Optional |
|
0:HasComponent |
Variable |
FlowRate |
BaseDataType |
MeasuredItemType |
Mandatory |
|
0:HasComponent |
Object |
MasterTotalizer |
|
TotalizerType |
Optional |
|
0:HasComponent |
Variable |
MaxFlowRate |
0:Number |
0:AnalogUnitType |
Optional |
|
0:HasComponent |
Variable |
MinFlowRate |
0:Number |
0:AnalogUnitType |
Optional |
|
0:HasComponent |
Variable |
Speed |
0:Number |
0:AnalogUnitType |
Optional |
|
0:HasComponent |
Variable |
RateControlMode |
RateControlMode |
0:BaseDataVariableType |
Optional |
|
0:HasComponent |
Variable |
TargetFlowRate |
0:Number |
0:AnalogUnitType |
Optional |
|
0:HasComponent |
Variable |
Load |
0:Number |
0:AnalogUnitType |
Optional |
|
Conformance Units |
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|
Scales ContinuousScale |
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Totalizer defines the overall material quantity (weight) that was conveyed over a defined duration. Multiple objects may be instantiated depending on the use case.
ControlMagnitude is used to run the device using a defined control signal (volumetric mode) e.g., run a motor at a pre-defined speed without taking into account the TargetFlowRate. The value is usually read from the server.
FlowRate defines current measured flow rate in mass per time.
MasterTotalizer defines the overall material quantity (weight) that was conveyed over the lifetime of the scale.
MaxFlowRate set maximum allowed gravimetric flow rate (upper limit).
MinFlowRate set minimum gravimetric flow rate (lower limit).
Speed defines the speed of the volumetric feeding device.
RateControlMode defines the mode in which the controller shall regulate the flow rate. The possible rate control modes are defined by the enumeration.
TargetFlowRate is used to set the desired gravimetric flow rate.
ProductionPreset, which is inherited from ScaleDeviceType shall have instances of ContinuousProductType or a subtype in the Products folder. These elements display specific settings for the production lot.
Load defines the load on the weighing bridge - for a belt weigher it´s typically the belt load.