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
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Attribute |
Value |
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|
BrowseName |
MachineModuleHistoricalRecordType |
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|
IsAbstract |
False |
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|
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. |
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|
0:HasComponent |
Object |
MachineModuleSpecification |
|
MachineModuleSpecificationType |
M |
|
0:HasProperty |
Variable |
ValidUntil |
0:UtcTime |
0:PropertyType |
M, RO |
|
Conformance Units |
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|
TMC Asset Management |
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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. |