Omron NX Series - Page 348

Event code Event name Meaning Assumed cause
Level
Reference
M
a
j
P
rt
M
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O
b
s
I
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f
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84080000 hex Tag Data
Link Timeout
A timeout occurred in
a tag data link.
• The power supply to the target
node is OFF.
• Communications with the tar-
get node stopped.
• The Ethernet cable connector
for EtherNet/IP is disconnect-
ed.
• The Ethernet cable for Ether-
Net/IP is broken.
• The link to the EtherNet/IP port
is OFF
.
• CIP message communications
at the target node are stopped.
• When the Packet Filter func-
tion is enabled in the
EtherNet/IP Port Settings,
packets from the target are not
allowed.
• CIP communications are not
allowed by the firewall function
or Packet Filter function on the
target node or the devices on
the communication path.
• The packet loss occurred on
the path due to the network
communications load.
• Noise
¡
page
14-36
84090000 hex Tag Data
Link Con-
nection
T
imeout
A timeout occurred
while trying to estab-
lish a tag data link
connection.
• The power supply to the target
node is OFF.
• Communications with the tar-
get node stopped.
• CIP message communications
stopped at the target node or
the EtherNet/IP port.
• The Ethernet cable connector
for EtherNet/IP is disconnect-
ed.
• The Ethernet cable for Ether-
Net/IP is broken.
• CIP communications are not
allowed by the firewall function
or Packet Filter function on the
target node or the devices on
the communication path.
• An error occurred in the com-
munications path.
¡
page
14-38
14 Troubleshooting
14-12
NX-series EtherNet/IP Unit User's Manual (W627)