Omron NXEIP202 User Manual page 294

12 Troubleshooting
TS
Green
--- Lit
12 - 6
Cause
Red
Non-volatile Memory
Control Parameter
Error
Memory Corruption
Detected
Unit Configuration
Error, Too Many Units
Unit Configuration
Error, Unsupported
Configuration
Unit Configuration
Information Error
Unit Configuration Ver-
ification Error
NX Unit Startup Error
Non-volatile Memory
Hardware Error
Bus Controller Error
Check the items described above. If this error occurs again even after you cycle the
power supply, replace the EtherNet/IP Coupler Unit.
Corrective action
If you turn OFF the power supply to the NX Unit or discon-
nect the Support Software communications while writing the
control parameters is in progress, write the control parame-
ters again.
Cycle the power supply to the Slave Terminal. If this error
occurs again even after you cycle the power supply, replace
the EtherNet/IP Coupler Unit.
Make sure that the number of NX Units that are connected
does not exceed the upper limit of the specifications.
Make sure that the total byte size of all I/O data in the Ether-
Net/IP Slave Terminal does not exceed the upper size limit
of 512 bytes for input data or 512 bytes for output data.
If you turn OFF the power supply to the EtherNet/IP Coupler
Unit or disconnect communications with the Support Soft-
ware while a download of Unit configuration information is in
progress, clear all memory on the EtherNet/IP Coupler Unit,
and then download the Unit configuration information again.
There is an inconsistency between the Unit configuration
information in the EtherNet/IP Coupler Unit and the Units
that are actually connected.
• Make sure that the Unit that is connected is registered.
• Make sure that the Unit that is registered is connected.
Cycle the power supply to the Slave Terminal. If this error
occurs again even after you cycle the power supply, replace
the NX Unit.
Replace the Communications Coupler Unit.
• Mount the NX Units and End Cover securely and secure
them with End Plates.
• Cycle the power supply to the Communication Coupler
Unit.
• If the error occurs again even after you make the above
correction, replace the Communication Coupler Unit.
NX-series EtherNet/IP Coupler Unit User's Manual (W536)