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12 Troubleshooting
NX-series EtherNet/IP Coupler Unit User’s Manual (W536)
12-3 Checking for Errors and Troubleshooting with Support Soft-
ware
12
12-3-5 Event Codes for Errors and Troubleshooting Procedures
Event name BOOTP Server Connection Error Event code
84510000 hex
*1
*1. This event code occurs for unit version 1.2 or later of the EtherNet/IP Coupler Unit.
Meaning The connection with the BOOTP server failed.
Source EtherNet/IP Source details EtherNet/IP
Coupler Unit
Detection
timing
During BOOTP
operation
Error
attributes
Level Minor fault Recovery Reset error in
EtherNet/IP
Coupler Unit.
Log category System
Effects
User program
Continues. Operation When Fail-soft Operation Is Set to Fail-soft
• EtherNet/IP Coupler Unit, EtherNet/IP Communi-
cations
Ethernet communication stops.
• NX Bus
(1) NX Safety Standalone mode
I/O refreshing to the NX Units continues.
(2) Remote I/O mode
I/O refreshing to the NX Units stops.
Messages cannot be sent to the NX Units in the
Slave Terminal.
When Fail-soft Operation Is Set to Stop
• EtherNet/IP Coupler Unit, EtherNet/IP Communi-
cations
Ethernet communication stops.
• NX Bus
(1) NX Safety Standalone mode
I/O refreshing to the NX Units stops.
(2) Remote I/O mode
I/O refreshing to the NX Units stops.
Messages cannot be sent to the NX Units in the
Slave Terminal.
Sys-
tem-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
BOOTP server is stopped. Check if the BOOTP server is
operating normally and set it to
operate normally if it is not.
Set the BOOTP server to operate
normally.
An error occurred in communica-
tions with the BOOTP server.
Check the communications path
with the BOOTP server and take
corrective measures if there are
any problems.
Keep the communications status
with the BOOTP server correctly.
Attached
information
None
Precautions/
Remarks
None