Omron SYSMAC CJ1W-EIP21, Operation Manuals

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13 Troubleshooting
13-38
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
Event name Invalid Communications Parameter Event code 1484 0000 hex
Meaning An error was found in the validation check of the parameters for tag data links that are saved in non-volatile memory.
Source PLC Function Module Source details CJ-series Unit Detection
timing At power ON,
Controller reset,
or Unit restart
Error attributes Level Minor fault Recovery Error reset Log category System
Effects User program Continues. Operation Tag link function of the EtherNet/IP Unit cannot be used.
System-defined
variables Variable Data type Name
None --- ---
Cause and
correction Assumed cause Correction Prevention
The power was interrupted during a
download. Download the device parameters
from the Network Configurator again. Make sure that the power supply is
not interrupted during a download.
A communications error occurred dur-
ing a download. Check for ambient noise. If there is a
noise source, remove it. Use the Unit away from sources of
noise. Implement noise countermea-
sures.
Non-volatile memory failure If the error occurs even after perform-
ing the actions described above,
replace the EtherNet/IP Unit. None
Attached
information None
Precautions/
Remarks None
Event name Tag Database Error Event code 1485 0000 hex
Meaning A tag database error occurred in the CPU Unit when using variables for tag data links, status layout, etc.
Source PLC Function Module Source details CJ-series Unit Detection
timing At power ON,
Controller reset,
or Unit restart
Error attributes Level Minor fault Recovery Error reset Log category System
Effects User program Continues. Operation Tag data link function of the EtherNet/IP Unit cannot be
used.
System-defined
variables Variable Data type Name
None --- ---
Cause and
correction Assumed cause Correction Prevention
The power was interrupted during a
download. Download the settings from the Sys-
mac Studio again. Make sure that the power supply is
not interrupted during a download.
A communications error occurred dur-
ing a download. Implement noise countermeasures if
there is excessive noise. Implement noise countermeasures.
Attached
information None
Precautions/
Remarks None