Omron CJ1W-ECT21 Operation Manual page 127

Error code
(hex)
0345 I/O Communica-
tion Error
0347 I/O Refresh Error
0601 Special Unit Error
0602 Special Unit Mem-
ory Error
*1. If a memory error occurs in the error log area of non-volatile memory, the record will not be stored in non-vol-
atile memory.
CJ-series EtherCAT Slave Units Operation Manual for NJ-series CPU Unit (W542)
Error Cause
The EtherCAT Slave Unit did
not receive the frame from the
EtherCAT master for more
than SM watch dog time (100
ms).
The I/O communication area
does not exist in the CPU Unit.
This can occur when the I/O
communication 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 mem-
ory.
An error occurred in the Ether-
CAT Slave Unit.
An error occurred in the Ether-
CAT Slave Unit's non-volatile
memory itself.
5 Troubleshooting
Detail code
First byte Second byte
02 hex 00 hex
02 hex 00 hex
Uncertain contents
01: Read error 06 hex: Error log
02: Write error
Saved in
non-volatile
memory
No
No
Yes
*1
Yes
5
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