7 OPC UA ObjectTypes ToC Previous Next

7.6 MCSType ObjectType Definition ToC Previous Next

The MCSType is the representation of a Main Control System and provides both Objects for Quantities and FunctionalGroups. It is illustrated in Figure 21 and formally defined in Table 21.

readme_files/image026.png Figure 21 – MCSType Illustration

Table 21 – MCSType Definition

Attribute Value        
BrowseName MCSType        
IsAbstract False        
References Node Class BrowseName DataType TypeDefinition Other
Subtype of the 2:TopologyElementType defined in OPC 10000-100, i.e. inheriting the InstanceDeclarations of that Node.          
0:HasComponent Object Analyses   AnalysesType O
0:HasComponent Object 2:Configuration   MCSConfigurationType O
0:HasComponent Object ElectricalCircuit   ElectricalCircuitType O
0:HasComponent Object Events   EventsType O
0:HasComponent Object 2:Operational   OperationalType O
0:HasComponent Object 2:Statistics   StatisticsType O
           
The following nodes override nodes added by the 2:TopologyElementType          
0:HasComponent Object 2:Identification   4:MachineryComponentIdentificationType M

The optional FunctionalGroup Analyses provides Objects and Methods for analyses that can be invoked on the Main Control System.

The optional FunctionalGroup Configuration provides Objects and Methods for configuring the behavior of the Main Control System.

The optional Object ElectricalCircuit provides Quantities for the electrical input of the Main Control System.

The optional FunctionalGroup Events provides Objects for alarms and conditions of the Main Control System. Of the available optional Objects in the EventsType, only Service and Warning are instantiated.

The mandatory FunctionalGroup Identification provides Properties to identify the Main Control System. The optional Variable DeviceClass has its ModellingRule changed to mandatory and its Value Attribute set to a specific value.

The optional FunctionalGroup Operational provides Variables for process data used during normal operation of the Main Control System, such as measurements, efficiencies, and states.

The optional FunctionalGroup Statistics provides Variables for statistical applications of the Main Control System, such as counters.

The InstanceDeclarations of the MCSType have additional Attributes defined in Table 22.

Table 22 – MCSType Attribute values for child Nodes

Source Path Value Attribute Description Attribute
Analyses   Invokable analyses for the topology element.
2:Configuration   Configure the behavior of the topology element.
ElectricalCircuit   Measurements and calculations of the electrical ports and delta of the topology element.
Events   Alarms and conditions of the topology element.
2:Identification   Identification properties of the topology element.

   2:Identification
   2:DeviceClass
   
“MCS” Domain or for what purpose this item is used.
2:Operational   Data for normal operation of the topology element.
2:Statistics   Data for statistics applications for the topology element.

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