7 OPC UA ObjectTypes ToC Previous Next

7.6 CtrlTaskType ObjectType Definition ToC Previous Next index

This ObjectType defines the representation of a Ctrl Task of a programmable Controller system in an OPC UA Address Space. It introduces Properties providing information about the Ctrl Task. Figure 20 shows the CtrlTaskType. It is formally defined in Table 18.

readme_files/image024.png

Figure 20 – CtrlTaskType Overview

The Ctrl Task ObjectType is formally defined in Table 18.

Table 18 – CtrlTaskType Definition

Attribute Value        
BrowseName CtrlTaskType        
IsAbstract False        
References Node Class BrowseName DataType TypeDefinition Modelling Rule
Subtype of the BaseObjectType defined in OPC 10000-5, i.e. inheriting the InstanceDeclarations of that Node.          
HasProperty Variable Priority UInt32 PropertyType Mandatory
HasProperty Variable Interval String PropertyType Optional
HasProperty Variable Single String PropertyType Optional

The Priority Property indicates the scheduling priority of the associated Ctrl Program Organization Unit.

The Interval Property indicates the periodical scheduling of the associated Ctrl Program Organization Unit at the specified interval.

The Single Property indicates a single scheduling of the associated Ctrl Program Organization Unit at each rising edge.

Previous Next