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9-33
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
64A3 0000 hex
FCS Check
Error
One of the following
errors occurred in
the converted pro-
tocol at the serial
gateway.
•
When converting
to CompoWay/F
command: BCC
error
•
When converting
to Modbus-RTU
command: CRC
error
•
When converting
to Modbus-ASCII
command: CRC
error
•
When converting
to Host Link FINS
command: FCS
error
Protocol Macros
•
The check code
attached to the
received mes-
sage does not
match the check
code that was
calculated from
the received mes-
sage.
•
Noise
•
There was a mistake in the
CRC code that was attached to
the command frame.
√
64A4 0000 hex
Timeout
Error
A timeout error
occurred.
•
The steps in the communica-
tions sequence of a protocol
macro are not progressing.
•
There is no remote device to
receive the command.
•
The command frame is incor-
rect.
•
The remote device is not
using the same serial com-
munications settings.
•
Wiring is not correct or termi-
nating resistance is not set
correctly.
•
The remote device could not
interpret the protocol com-
mand.
•
The response from the
remote device was sent too
soon.
•
The response timeout moni-
toring time of the serial gate-
way is too short.
•
The loopback test jig failed.
•
The communications circuits
in the Serial Communica-
tions Unit are faulty.
•
A serial gateway interrupted
processing between protocol
macro steps.
•
Noise occurred.
•
The Serial Communications
Mode setting is incorrect.
√
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...