It is to describe of the trace for a given program step. It is used in JoiningTraceDataType. The structure is defined in Table 222.
Table 222 – StepTraceDataType Structure
|
Name |
Type |
Description |
Optional |
|
StepTraceDataType |
structure |
Subtype of the 0:Structure defined in OPC 10000-5. |
|
|
StepTraceId |
0:TrimmedString |
False |
|
|
StepResultId |
0:TrimmedString |
It is the system-wide unique identifier of the associated step result. |
False |
|
NumberOfTracePoints |
0:UInt32 |
It is the total number of trace points to be sent for each quantity. |
False |
|
SamplingInterval |
0:Duration |
It is the time between each sample in the given Trace array. This is required if applications want to reduce the amount of data by omitting the StepTraceContent array which represents TIME. |
True |
|
StartTimeOffset |
0:Duration |
It is the offset to the ProcessingTimes.StartTime in the Result instance. This value can be used to order the steps in execution order if same step is run multiple times. |
True |
|
StepTraceContent |
TraceContentDataType[] |
It is an array of trace data which contains the samples of different quantities like torque, angle, time, etc. The array size of TraceContent array should be same for each quantity and that is determined by the NumberOfTracePoints value. |
False |
Its representation in the AddressSpace is defined in Table 223.
Table 223 – StepTraceDataType Definition
|
Attribute |
Value |
||||
|
BrowseName |
StepTraceDataType |
||||
|
IsAbstract |
False |
||||
|
References |
Node Class |
BrowseName |
DataType |
TypeDefinition |
Other |
|
Subtype of the 0:Structure defined in OPC 10000-5. |
|||||
|
Conformance Units |
|||||
|
IJT Joining Result Trace |
|||||