Omron CJ1W-EIP21 Operation Manuals page 330

13 Troubleshooting
Indicator
7-seg-
MS NS
ment*
Errors Related to CPU Unit Data Exchange
Flash- --- HE
ing red
Flash- --- HF
ing red
* The 7-segment display alternates between the node address and error code.
13-12
Error Cause
CPU Unit service Servicing from the
monitoring error CPU Unit was not
completed within the
fixed interval. The
monitoring time is
normally 11 s.
CPU Unit watch- An error occurred in
dog timer error the CPU Unit.
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
Error log
Unit operation
(hex)
• If the Unit is the origina- 0002
tor of the tag data link
connection, it stops
communications.
• Communications will
continue for target con-
nection. If the Unit is
the target of the tag
data link connection
and the Controller sta-
tus is included in the
communications data,
the corresponding ele-
ment in the Target
Node PLC Error Flags
will change to TRUE.
Note Recovery is possi-
ble for this error.
When operation is
restored, tag data
link startup pro-
cessing will be per-
formed and
operations will
return to normal.
• If the Unit is the origina- 0001
tor of the tag data link
connection, it stops
communications.
• Communications will
continue for target con-
nection. If the Unit is
the target of the tag
data link connection
and the Controller sta-
tus is included in the
communications data,
the Target Node PLC
Error Flags will change
to TRUE.
Countermeasure
Check and correct
the CPU Unit's oper-
ating environment.
Replace the CPU
Unit.