Omron CJ Series Connection Manual page 47

7.5.2. Checking the Sent and Received Data
Check that the correct data are sent and received.
In this procedure, the output of Slave Terminal is performed, which may have a
risk of unexpected operation of Slave Terminal.
Take adequate safety precautions before you proceed with this operation check
described here. If you cannot ensure safety, do not proceed. When you perform
this operation check, make sure to complete all the steps and make the output of
Slave Terminal safe.
Ensure the safety before wiring the I/O in a state where the devices are powered
OFF. Always read and follow the information provided in all safety precautions in
the manuals for each device to be wired.
If the PLC memory is changed by malfunction during monitoring power flow and
present value status in the Ladder Section Window or in the Watch Window, the
devices connected to output units may malfunction, regardless of the operating
mode of CPU Unit.
Always ensure safety before monitoring power flow and present value status in
the Ladder Section Window or in the Watch Window.
1
Check that the operating mode of
PLC is in Stop/Program Mode.
*If the PLC is not in Stop/Program
Mode, change to Stop/Program
Mode by referring to step 1 of
7.3.3. Creating the I/O Table and
setting IP Address.
7．EtherNet/IP Connection Procedure
44