Omron CJ1W-EIP21 Operation Manuals page 326

13 Troubleshooting
 Tag Status Tab Page
This tab page shows if the tag settings for each tag for tag data links are set so that data can be
exchanged with the CPU Unit. The following status is displayed to show the status of the settings.
Normal resolution completed: Normal data exchange is possible.
Resolving:
Size does not match error:
No tag:
Controller I/F error:
Attribute error:
If the status is not "Normal resolution completed," check the tag data link settings or the network
variable settings in the variable table in the NJ-series CPU Unit.
13-8
The variables with tags are being resolved. When the resolution is
completed normally, a connection will be established and the data
exchange will start.
Different sizes are set for the network variables and the tag settings.
A connection will not be established for a tag for which this error
occurs.
A network variable is not set in the variable table in the CPU Unit for
the specified tag setting. A connection will not be established for a
tag for which this error occurs.
There is a problem in the bus interface with the CPU Unit. Determine
the cause based on the indicators and the error log.
Writing is not possible for Read Only and Constant attributes.
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)