Omron CJ1W-EIP21 Operation Manuals page 331

Indicator
7-seg-
MS NS
ment*
Errors Related to CPU Unit Data Exchange
Flash- --- HH
ing red
Errors Related to the Software Switches
--- --- C6
--- --- d5
* The 7-segment display alternates between the node address and error code.
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
Error Cause
CPU Unit Fatal A fatal error occurred
Error in the CPU Unit.
Multiple Switches Two or more soft-
ON ware switches were
ON simultaneously,
or a second software
switch was turned ON
before a prior opera-
tion was completed.
Verification Error The target registered
(target non-exis- in the device parame-
tent) ters does not exist.
13 Troubleshooting
Error log
Unit operation
(hex)
• If the Unit is the origina- 0015
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.
• The tag data link's send
data will be cleared to 0
in accordance with the
Output OFF settings,
and data transfer will
continue with that data.
• The error code will be ---
displayed on the 7-seg-
ment display for 30 sec-
onds.
• The error display will be
cleared the next time
that a settings opera-
tion is completed nor-
mally. *_MultiSwOnErr
(Multiple Switches ON
Error) will change to
TRUE.
The Unit will periodically ---
attempt to reconnect to
the target.
*_TDLOpnErr (Verifica-
tion Error), *_UnitErr (Unit
Error Occurred), and
*_NetErr (Network Error
Occurred) will change to
TRUE.
Countermeasure
Eliminate the cause
of the error in the
CPU Unit.
The tag data link will
restart automatically
when the cause of
the error is elimi-
nated.
13
Execute software
switch operations one
at a time.
Check the following
items:
• Is the registered
node's power sup-
ply ON?
• Is the cable con-
nected?
• Is the cable dam-
aged or loose?
• Is there excessive
noise?
13-13