Omron NJ Series Troubleshooting Manual page 162

3 Error Tables
CJ-series Serial Communications Units
The section provides tables of the events that can occur in the following Units.
CJ1W-SCU22
CJ1W-SCU32
CJ1W-SCU42
Event code Event name
04740000 hex Error Log
Data Error
14800000 hex Protocol Data
Error
34A40000 hex System
Setup Error
04750000 hex DTR Check
Error
04760000 hex CTS Check
Error
54A80000 hex Command
Error
54A90000 hex Sequence
Abort Com-
pleted
3-100
Meaning Assumed cause
An error occurred in • There is a source of noise
the error log data. nearby.
• Non-volatile memory failure
A protocol data • The communications connec-
checksum error has tor with the CX-Protocol was
occurred. disconnected or the power sup-
ply to the Controller was inter-
rupted during transfer of the
protocol data from the CX-Pro-
tocol.
• The Serial Communications
Unit failed.
There is an error in • There is an error in the system
the system settings settings for the Serial Commu-
for the Serial Com- nications Unit.
munications Unit.
An error was found • Loopback test jig failure.
during the DTR
• Noise
check.
• The communications circuits in
the Serial Communications Unit
are faulty.
An error was found • Loopback test jig failure.
during the CTS
• Noise
check.
• The communications circuits in
the Serial Communications Unit
are faulty.
A command error • The constant in the expected
occurred. receive message that is set in
the protocol macro is different
from the constant in the mes-
sage that was received.
The sequence was • The protocol macro data is not
ended by an Abort set correctly.
setting for the next The baud rate, frame format, or
processing or error other system setting does not
processing. agree with the remote node.
Level
Maj Prt Min Obs Info
S CJ-series
Serial Com-
munications
Units Opera-
tion Manual for
NJ-series
CPU Unit (Cat.
No. W494)
S Same as
above.
S Same as
above.
S Same as
above.
S Same as
above.
S Same as
above.
S Same as
above.
NJ-series Troubleshooting Manual (W503)
Reference