9 OPC UA VariableTypes ToC Previous Next

9.8 StepTraceType ToC Previous Next

The StepTraceType is a subtype of the BaseDataVariableType. It is to describe of the trace for a given program step. It is formally defined in Table 65. Refer section 10.11 for the description of the parameters.

Table 65 - StepTraceType Definition

Attribute Value
BrowseName StepTraceType
IsAbstract False
ValueRank −2 (−2 = Any)
DataType StepTraceDataType

Subtype of the BaseDataVariableType defined in OPC 10000-5.

References NodeClass BrowseName DataType TypeDefinition Others
0:HasComponent Variable StepTraceId 0:Guid 0:BaseDataVariableType M, RO
0:HasComponent Variable StepResultId 0:Guid 0:BaseDataVariableType M, RO
0:HasComponent Variable NumberOfTracePoints 0:UInt32 0:BaseDataVariableType M, RO
0:HasComponent Variable SamplingInterval 0:Double 0:BaseDataVariableType O, RO
0:HasComponent Variable StartTimeOffset 0:Double 0:BaseDataVariableType O, RO
0:HasComponent Variable StepTraceContent TraceContentDataType[] 0:BaseDataVariableType M, RO

The mandatory StepTraceId is the system-wide unique identifier of the step trace.

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