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Connection Status Codes and Error Processing Section 14-3
Errors Related to the Unit The 7-segment display alternates between the node address and error code.
14-3 Connection Status Codes and Error Processing
This section explains how to identify and correct errors based on the tag data
link’s connection status. The connection status can be read using the Connec-
tion Tab Page of the Network Configurator’s Monitor Device Window. For
details, refer to 14-1-1 The Network Configurator’s Device Monitor Function.
Note 1. The connection status has the same meaning as the Connection Manag-
er’s General and Additional error response codes, as defined in the CIP
specifications.
2. The Open DeviceNet Vendor Association, Inc. (ODVA) can be contacted at
the following address to obtain a copy of the CIP specifications.
ODVA Headquarters
4220 Varsity Drive, Suite A
Ann Arbor, Michigan 48108-5006
USA
TEL: 1 734-975-8840
FAX: 1 734-922-0027
Flashing
red
Not lit F4 Communica-
tions Control-
ler Error
An error
occurred in the
Communica-
tions Controller
in the EtherNet/
IP Unit or built-in
EtherNet/IP
port.
• The Unit will be
offline and unable to
communicate. Errors
will be returned to all
communications
requests.
• Data exchanges
(refreshing) will con-
tinue with the CPU
Unit.
The Unit Error
Occurred Flag (n+10,
bit 00), Network Error
Occurred Flag (n+10,
bit 01), and Commu-
nications Controller
Error Flag (n+10, bit
05) will go ON.
020F Replace the Ether-
Net/IP Unit or (for
the built-in Ether-
Net/IP port) the
CPU Unit if the
error recurs when
the Unit is
restarted.
Flashing
red
--- C8 Node Address
Setting
Changed Dur-
ing Operation
The Node
Address Setting
Switch was
changed during
operation.
Operation will con-
tinue.
The IP Address
Changed During
Operation Flag (n+11,
bit 02) will turn ON.
--- Restart the Ether-
Net/IP Unit or built-
in EtherNet/IP port
after setting the
correct node
address.
Indicator Error Cause Unit operation (Flag
status)
Error
log
(hex)
Countermeasure
MS NS 7-segment
Indicator Error Cause Unit operation (Flag
status)
Error
log
(hex)
Countermeasure
MS NS 7-segment
Lit red Not lit --- Special Unit
Error
An error
occurred in a
Special I/O Unit
or CPU Bus
Unit.
Records the error in
the error log.
Operation stops.
0601 Restart the CPU
Unit.
Replace the Ether-
Net/IP Unit or (for
the built-in Ether-
Net/IP port) the
CPU Unit if the
error recurs.