![background image](http://html1.mh-extra.com/html/omron/cj1w-scu22/cj1w-scu22_operation-manual_742498313.webp)
9-35
9 Troubleshooting and Maintenance
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
9-5 Even
t L
ogs
9
9-5-2 Error T
ab
le
846B 0000 hex
Parity Error
A parity error
occurred.
•
In Serial Gateway Mode or Pro-
tocol Macro Mode:
•
The reception circuits in the
Serial Communications Unit
are faulty.
•
A transmission error occurred
due to noise or other factors.
•
During Loopback Test
•
Loopback test jig failure.
•
Noise
•
The communications circuits
in the Serial Communica-
tions Unit are faulty.
√
846C 0000 hex
Overrun
Error, Fram-
ing Error, or
Parity Error
(Transmis-
sion Error)
An overrun error,
framing error, or
parity error
occurred.
•
The communications conditions
and baud rate settings do not
match the host.
•
Noise or other external interfer-
ence.
•
The baud rate is outside the
allowable range or there are bit
errors due to different stop bit
settings or other parameters.
•
The communications cable wir-
ing is faulty.
•
Terminating resistance is not
set correctly for the RS-
422A/485 ports.
•
Wiring is faulty or terminating
resistance is not set correctly
on an NT-AL001 or other
Adapter.
√
846D 0000 hex
Transmis-
sion Error
(CRC Error)
A CRC error
occurred.
•
Noise
•
CRC calculation method does
not match the device.
√
Event code
Event name
Meaning
Assumed cause
Level
Reference
Maj
Prt
Min
Obs
Info
Содержание CJ1W-SCU22
Страница 192: ...4 Using Protocol Macros 4 56 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 250: ...6 No protocol Mode 6 22 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 460: ...A Standard System Protocol R 126 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494...
Страница 473: ...Index 1 CJ series Serial Communications Units Operation Manual for NJ series CPU Unit W494 I Index...