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5 Troubleshooting
CJ-series EtherCAT Slave Units Operation Manual (W541)
5-3 Error Log Function
5
5-3-4 Error Log Error Codes
This section provides details of the error log error codes.
5-3-4 Error Log Error Codes
Error
code
(hex)
Error Cause
Detail code Saved in
non-volatile
memory
First byte Second byte
0001 CPU Unit Watch-
dog Timer Error
An error occurred in the CPU Unit. 00 hex 00 hex Yes
0002 CPU Unit Service
Monitoring Error
Servicing from the CPU Unit was not com-
pleted within the fixed interval.
The monitoring time is normally 11 s.
Monitoring time (ms)
0006 Other CPU Error • The CPU Unit’s I/O table is not regis-
tered.
• The same unit number is set on another
Unit.
Bit D11: Unit not in Registered I/O Tables
Bit D14: Duplicate unit number setting
(Other bits are reserved for system use.)
000E I/O Bus Error An error occurred while exchanging data
with the CPU Unit.
00 hex 00 hex
000F CPU Unit Initializa-
tion Error
Timeout while awaiting access right of
cyclic area during initialization.
0118 Illegal Packet Dis-
carded
The frame was aborted because of an ille-
gal packet reception.
FINS Command:
• Bit 15: OFF
• Bits 08 to 14: Source network address
• Bits 00 to 07: Source node address
FINS Response:
• Bit 15: ON
• Bits 08 to 14: Destination network
address
• Bits 00 to 07: Destination node address
No
0344 Verification Error • A mismatch occurred between the
RxPDO setting size from the EtherCAT
master and the OUT data area size set-
ting in the EtherCAT Slave Unit.
• A mismatch occurred between the
TxPDO setting size from the EtherCAT
master and the IN data area size set-
ting in the EtherCAT Slave Unit.
• The TxPDO and RxPDO are not
assigned when the Unit changes from
Pre-Operational state to Safe-Opera-
tional state.
06 hex 00 hex
0345 I/O Communication
Error
The EtherCAT Slave Unit did not receive
the frame from the EtherCAT master for
more than SM watch dog time (100 ms).
02 hex 00 hex
0347 I/O Refresh Error The I/O communication area does not
exist in the CPU Unit.
This can occur when the I/O communica-
tion area is set incorrectly, when the Unit
is mounted to a different CPU Unit with a
different number of EM banks or when EM
has been converted to file memory.
02 hex 00 hex
0601 Special Unit Error An error occurred in the EtherCAT Slave
Unit.
Uncertain contents Yes
0602 Special Unit Mem-
ory Error
An error occurred in the EtherCAT Slave
Unit’s non-volatile memory itself.
01: Read error
02: Write error
06 hex: Error log
Yes
*1
*1. If a memory error occurs in the error log area of non-volatile memory, the record will not be stored in non-volatile.
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