Mitsubishi Electric L02SCPU User's Manual And Reference page 149

(5) Online operation of trace data
Before execution of a sampling trace, write the created trace setting to the CPU module.
[Debug]  [Sampling Trace]  [Write to PLC...]
The trace data written to the CPU module can be read.
[Debug]  [Sampling Trace]  [Read from PLC...]
(6) Executing a sampling trace
The following describes how to execute from a programming tool.
(a) Start
1.
On the "Sampling Trace" window, enter devices to trace.
[Debug]  [Sampling Trace]  [Open Sampling Trace]
Set trace data.
Configure trend
graph setting.
2.
Select "Start Trace".
[Debug]  [Sampling Trace]  [Start Trace]
(b) Stop
When a trace is stopped, the number of traces counted is cleared.
(To resume the trace, select "Start Trace" again.)
[Debug]  [Sampling Trace]  [Stop Trace]
To clear the execution status, perform a latch clear operation. ( Page 89, Section 3.4 (4) (a))
To perform the trace operation again after the latch clear operation, select "Start Trace".
CHAPTER 3 CPU MODULE FUNCTIONS
Trace results are
displayed.
A trend graph is
displayed.
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