6 OPC UA ObjectTypes

6.1 FaceAlignmentSystemType ObjectType Definition

6.1.1 Overview

The FaceAlignmentSystemType provides a representation of a FAS as a sub-type of the MiningEquipmentType as shown in Figure 1. Importantly, it is composed of a ParameterSet to monitor all relevant aspects of the equipment.

Figure 1 – Overview FaceAlignmentSystemType

6.1.2 ObjectType Definition

The FaceAlignmentSystemType is formally defined in Table 1.

Table 1 – FaceAlignmentSystemType Definition
Attribute Value
BrowseNameFaceAlignmentSystemType
IsAbstractFalse
References Node Class BrowseName DataType TypeDefinition Other
Subtype of the MiningEquipmentType defined in OPC 40560, i.e. inheriting the InstanceDeclarations of that Node.
0:HasAddInObject4:MiningEquipmentIdentification4:MiningEquipmentIdentificationTypeM
0:HasComponentObject2:ParameterSet0:BaseObjectTypeM
Conformance Units
Face Alignment System Functional Variables
Face Alignment System Methods

The components of the FaceAlignmentSystemType have subcomponents which are defined in Table 2.

Table 2 – FaceAlignmentSystemType Subcomponents
BrowsePath References NodeClass BrowseName DataType TypeDefinition Others
2:ParameterSet0:HasComponentVariableCurrentSequenceNumberUInt160:BaseDataVariableTypeM, RO
2:ParameterSet0:HasComponentVariableOffsets4:LongwallShieldOffsetDataType[]4:LongwallShieldOffsetArrayItemTypeM, RO

The component Variables of the FaceAlignmentSystemType have additional Attributes defined in Table 3.

Table 3 – FaceAlignmentSystemType Attribute values for child Nodes
BrowsePath Value Attribute Description Attribute

NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefact

UnitId: 5067858

DisplayName: m

Description: metre

This is the EngineeringUnit of the offsets.
High: 20
Low: -20		This is the EURange of the offsets.

6.1.3 ObjectType Description

The CurrentSequenceNumber variable describes the current sequence number on which the offset values are applicable. It is being increased when offset values change.

The Offsets variable describes the offsets calculated by the FAS which have to be considered by the RSS for optimal shield alignment in aerial view.

Please refer to OPC 10000-100, OPC 40001-1, OPC 40560 and OPC 40567-1 for the descriptions of other inherited instance declarations.