Omron CX-MOTION - 06-2008, Operation Manual

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Troubleshooting Section 15-1
15-1 Troubleshooting
Error Processing of
Online Errors
The following error message may be displayed when attempting to connect
online on the CX-Motion-MCH Basic Window. Use the following flow chart to
help identify and correct the error.
• If a transfer operation fails when transferring servo parameters for many
axes, a timeout may have occurred. Increase the response monitoring
time in the PLC Setup.
The "Failed to Connect to the PLC"
error message displayed.
Is the cable between the
computer and PLC
connected correctly?
Is the connected PLC turned
ON?
Was the I/O table created after the
MC Unit was mounted?
Is another Programming Device
that uses CX-Server (such as CX-
Programmer) communicating
online?
Check PLC Communications Settings
again.
Yes
Yes
Yes
Yes
No
No
No
No
Turn ON the PLC.
Create I/O table using the CX-Programmer or
Programming Console.
Check whether PLC model (including CPU Unit model)
and the network type setting match among all the
Programming Devices that use CX-Server.
•
Check whether the cable is disconnected or broken.
•
Check whether the communications settings are the
same for the computer's COM and CX-Server.