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 |
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|
BrowseName |
StepTraceType |
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|
IsAbstract |
False |
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|
ValueRank |
−2 (−2 = Any) |
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|
DataType |
StepTraceDataType |
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|
References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
Others |
|
|
Subtype of the BaseDataVariableType defined in OPC 10000-5. |
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|
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.