The MachineModuleHistoricalRecordType ObjectType contains the specifications of the machine module that have been valid in the past. When the machine module manufacturer modifies the machine in a way that impact the OPC UA server specification, the machine module manufacturer will save an object of type MachineModuleHistoricalType to the folder PastSpecificationRecords which is a component of the relevant MachineModule

The MachineModuleHistoricalRecordType is formally defined in the following table.

Table 14 – MachineModuleHistoricalRecordType Definition

Attribute

Value

BrowseName

MachineModuleHistoricalRecordType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the BaseObjectType defined in OPC 10000-5 - Part 5: Information Model, i.e. inheriting the Instance Declarations of that Node.

0:HasComponent

Object

MachineModuleSpecification

MachineModuleSpecificationType

M

0:HasProperty

Variable

ValidUntil

0:UtcTime

0:PropertyType

M, RO

Conformance Units

TMC Asset Management

The components of the MachineModuleHistoricalRecordType are further described below.

BrowseName

Description

MachineModuleSpecification

The MachineModuleSpecification Object contains a specification that was valid in the past.

ValidUntil

The ValidUntil Propertyontains the date and time the MachineModuleSpecification was last valid. The Property ValidUntil shall be set by the OEM when changes that impact the machine module specification are made.