14 Troubleshooting
14-28
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
Event name Tag Data Link Connection Failed Event code 84070000 hex
Meaning Establishing a tag data link connection failed.
Source EtherNet/IP Function Module Source details CIP Detection
timing
When establish-
ing tag data link
connection
Error attributes Level Minor fault Recovery Automatic
recovery
Log category System
Effects User program Continues. Operation Data links will not operate for connections that could not
be established. Data links for other connections will oper-
ate.
Indicators EtherNet/IP NET RUN EtherNet/IP NET ERR EtherNet/IP LINK/ACT
Flashes at 1-s intervals. Flashes at 1-s intervals. ---
System-defined
variables
Variable Data type Name
_EIP_TDLinkOpnErr BOOL Tag Data Link Connection Failure
Cause and
correction
Assumed cause Correction Prevention
The tag data link connection informa-
tion is not the same for the originator
and target.
Correct the tag data link connection
information, and then download the
device parameters from the Network
Configurator.
Before you use the tag data links,
make sure that the tag data link con-
nection information in the originator
and target are suitable.
Insufficient connections Reduce the number of class-3 mes-
sages.
Reduce the number of data links and
class-3 messages that are used.
Attached
information
Attached information 1: Target node IP address (example: C0A8FA01 hex = address 192.168.250.1)
Precautions/
Remarks
You can investigate a detailed cause from the connection status.
Refer to 14-3-2 Connection Status Codes and Troubleshooting.
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