Omron NX Series User Manual page 340

14 Troubleshooting
Indicators
RUN ERR
(green) (red)
Not lit Lit
Flashing Not lit
status
continues
more
than 30
seconds.
Lit Flash-
ing
14-4
Operation
status of an
NX-series Description
EtherNet/IP
Unit
X Bus Unit An error in the critical
Hardware Er- part occurred, i.e., the
ror CPU of the NX-series
EtherNet/IP Unit stop-
ped, etc.
X Bus Unit An error that causes all
Common system control opera-
Function tions in the X Bus Unit
Processing to stop occurred.
Error
CPU Unit Er- The NX-series Ether-
ror Net/IP Unit stopped
operation due to an er-
ror that occurred in the
NX502 CPU Unit.
System Initi- A hardware failure or
alization Error data error in the NX-
series EtherNet/IP Unit
that is not detected as
a Hardware Initializa-
tion Error or X Bus Unit
Hardware Error occur-
red.
Errors in the An error in the X Bus
X Bus Func- Function Module oc-
tion Module curred.
Errors in the An error in the X Bus
X Bus Ether- EtherNet/IP Function
Net/IP Func- Module occurred.
tion Module
Errors in the An error in the X Bus
X Bus Ether- Ethernet Function
net Function Module occurred.
Module
Correction
Cycle the power supply.
If the NX-series EtherNet/IP Unit does not start
normally after cycling the power supply, replace
the NX-series EtherNet/IP Unit.
Connect the Sysmac Studio and an HMI to the
CPU Unit, refer to Errors in the X Bus Unit
Common Function Module in the NJ/NX-series
Troubleshooting Manual (Cat. No. W503) and
troubleshoot the problem.
•
If the Sysmac Studio and an HMI can be con-
nected to the CPU Unit, refer to
Troubleshooting Non-fatal Errors in the
NJ/NX-series Troubleshooting Manual (Cat.
No. W503) and troubleshoot the problem.
•
If the Sysmac Studio and an HMI cannot be
connected to the CPU Unit, cycle the power
supply.
If the CPU Unit does not start normally after
cycling the power supply, replace the CPU
Unit.
Cycle the power supply.
If the NX-series EtherNet/IP Unit does not start
normally after cycling the power supply, replace
the NX-series EtherNet/IP Unit.
Refer to Errors in the X Bus Function Module in
the NJ/NX-series Troubleshooting Manual (Cat.
No. W503).
•
14-3 Checking with the EtherNet/IP Status In-
dicators on the NX-series EtherNet/IP Unit on
page 14-5
•
14-4 Checking with the Sysmac Studio, an
HMI, and Instructions That Read Error Status
on page 14-6
•
14-5 Checking with Device Variables on page
14-46
•
14-6 Checking with the Network Configurator
on page 14-47
NX-series EtherNet/IP Unit User's Manual (W627)