Troubleshooting For Each Cause - Omron NJ Series Troubleshooting Manual

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Troubleshooting for Each Cause

This section provides troubleshooting methods for incorrect settings, fault communications paths, and
high system service loads.
Troubleshooting Incorrect Settings and Faulty Communications
Path
If the Sysmac Studio cannot go online with the CPU Unit, troubleshoot the problem with the following
flowchart.
 Direct Connection to Peripheral USB Port
Sysmac Studio cannot
connect to CPU Unit.
Is power supplied to the Controller?
Is the USB cable connected properly?
Is the connection method set to a
direct USB connection in the
Communications Setup of the
Sysmac Studio?
Is the USB driver installed correctly?
Replace the USB cable.
NJ-series Troubleshooting Manual (W503)
No
Turn ON the power supply to the Controller.
Yes
No
No
Insert the USB cable connectors all the way
at the computer and Controller.
Yes
No
No
Set the connection method to a direct USB connection
in the Communications Setup of the Sysmac Studio.
Yes
No
Install the USB driver.
No Refer to the appendices of Sysmac Studio
Version 1 Operation Manual (Cat. No. W504)
for the installation procedure for the USB
driver.
Yes
No
2 Error Troubleshooting Methods
Yes
Can the Sysmac Studio
go online with CPU Unit?
Yes
Can the Sysmac Studio
go online with CPU Unit?
Yes
Can the Sysmac Studio
go online with CPU Unit?
Yes
Can the Sysmac Studio
go online with CPU Unit?
2
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