Chapter 5 Debug Support Function; Circuit Trace; Procedure For The Circuit Trace - Mitsubishi Electric MELSEC iQ-R Series User Manual

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.
Stored in the
buffer memory.
Send/receive packet data
and communication
control signal states
Receive

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.
C24 buffer memory
Data are
stored.
Data
Data
Send
Data are read from
Trace data are displayed.
the buffer memory.
Engineering tool
5 DEBUG SUPPORT FUNCTION
5
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5.1 Circuit Trace