Omron NJ Series User Manual page 493

16 Troubleshooting
 Connection Tab Page
Information about the target node that acts as the originator is displayed.
If all tag data link connections to the node are established and normal, this information is displayed
in blue. However, if any connection is broken it is displayed in red.
However, this information is displayed in gray if the connection to the node is stopped.
In addition, in the Connection Status Area, the Status Column shows the current status of each
connection that is set as the originator. This information can be used to identify the cause of tag
data link errors.
Refer to 16-2-2 Connection Status Codes and Troubleshooting on page 16-11 for details on the
connection status.
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NJ/NX-series CPU Unit Built-in EtherNet/IP Port User's Manual (W506)