Omron CJ Series, Operation Manual

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2-2 Connecting Online to the Relay PLC
2-2-3 CPU Unit Troubleshooting
2-21
1. Setting the Routing Tables and Connecting Online
Start the routing table setting tool.
At this point, you can set the routing tables before connecting online, and transfer
the routing tables to a PLC that does not have a transferred routing table.
After transferring the routing tables, make the communications settings in step 2.
2. Changing the Communications Settings to Match the Routing Table Settings of
the Connected PLC
Display the Change PLC Device Dialog Box.
When connecting to a PLC that has routing tables set already, the network ad-
dress and node address settings in this box will be changed to the routing table
settings set in the PLC, and the PLC will be connected online.
3. The CX-Integrator connects online with the current communications settings.
When the communications settings were not changed in step 2, the CX-Integrator
will connect online with the original settings of network address 0 and node
address 0. Some of the CX-Integrator’s functions cannot be used if the online
connection is made with network address 0 and node address 0.
2-2-3 CPU Unit Troubleshooting
Right-click the desired target PLC in the Online Connection Information Window and
select
Error Log . Refer to 2-4 Switching the Target PLC for details.
The PLC Errors Dialog Box will be displayed. Check the errors that have occurred in the
CPU Unit and perform any required error processing.
For example, the PLC Errors Window above will be displayed when an I/O Table Setting
Error has occurred in a CJ-series PLC. In this case, the registered I/O table does not
match the actual I/O table. There are three ways to correct this error: change the actual
Units in the PLC, create a new I/O table, or edit and transfer the I/O table.