Omron CJ Series Connection Manual page 14

7.4. Serial Communication Status
Check
↓
7.4.1. Starting the Trace
↓
7.4.2. Executing the Communications
Sequence
↓
7.4.3. Checking the Trace Data
↓
7.4.4. Checking the Receive Data
7．Serial Communications Connection Procedure
Start the send/receive processing and confirm that
serial communications performs normally.
Start tracing with CX-Protocol.
Execute the communications sequence using
CX-Programmer.
Check with the trace data in CX-Protocol that the
correct data are sent and received.
Check that the correct data is written to the I/O
memory of PLC using CX-Programmer.
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