15-11
15 Troubleshooting
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
15-1 Overview of Errors
15
15-1-2 Errors Related to the EtherNet/IP Function Module
The event levels for errors that are related to built-in EtherNet/IP are given in the following table.
NX-series CPU Units
Minor fault Some of the control operations for one of the function modules in the NJ/NX-
series Controller stop for errors in this event level. If a minor fault level error
occurs for the EtherNet/IP Function Module, EtherNet/IP communications are
possible, but control may be affected. User action is required.
Observation Errors in the observation level do not affect NJ/NX-series Controller control
operations. Observations are reported in order to prevent them from developing
into errors at the minor fault level or higher.
Information Events that are classified as information provide information that do not indicate
errors.
Event Levels for Built-in EtherNet/IP Errors
Level
Source
Communications port CIP communications TCP application
Major fault • None • None • None
Partial fault
• EtherNet/IP Processing
Error
• None • None
Minor fault
• Communications Con-
troller Failure
• MAC Address Error
• IP Route Table Setting
Error
• Basic Ethernet Setting
Error
• IP Address Setting Error
• DNS Setting Error
• DNS Server Connec-
tion Error
• IP Address Duplication
Error
• BOOTP Server Connec-
tion Error
• Identity Error
• Tag Data Link Setting
Error
• Tag Name Resolution
Error
• Controller Insufficient
Memory Warning
• Tag Data Link Connec-
tion Failed
• Tag Data Link Timeout
• Tag Data Link Connec-
tion Timeout
• Tag Data Link Equip-
ment Total Allowable
Bandwidth Exceeded
• FTP Server Setting
Error
• NTP Client Setting Error
• SNMP Setting Error
• NTP Server Connection
Error
Observation
• Access Detected Out-
side Range of Variable
• Packet Discarded Due
to Full Reception Buffer
• Link OFF Detected
• None • None
Information
• Link Detected
• Restarting Ethernet Port
• IP Address Fixed
• BOOTP Client Started
• Tag Data Link Download
Started
• Tag Data Link Download
Finished
• Tag Data Link Stopped
• Tag Data Link Started
• Tag Data Link All Run
• FTP Server Started
• NTP Client Started
• SNMP Started
Event level of the error Operation
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