Mitsubishi Electric MELSEC iQ-RJ71C24-R2 - Chapter 5 Debug Support Function; Circuit Trace; Procedure for the Circuit Trace

5 DEBUG SUPPORT FUNCTION
5.1 Circuit Trace
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5 DEBUG SUPPORT FUNCTION
The debug support function is designed to support the debugging of communication processing between C24 and target
device. The following functions are available to ease system startup work.
• Circuit trace
• Protocol execution log storage function (for predefined protocol only)
5.1 Circuit Trace
The communication data and communication control signal between C24 and target device are traced.
Procedure for the circuit trace
The following shows the procedure for the circuit trace.
Operating procedure
1. Start circuit trace from Engineering tool.
2. Perform communications with the target device.
3. Stop circuit trace in Engineering tool.
4. Circuit trace results are displayed.
5. Confirm the send/receive packet data and communication control signal.
Stored in the
buffer memory.
Data are read from
the buffer memory.
Trace data are displayed.
C24 buffer memory
Send/receive packet data
and communication
control signal states
Data are
stored.
Engineering tool
Receive
Data
Data
Send