9 OPC UA VariableTypes

9.8 StepTraceType

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.