![background image](http://html1.mh-extra.com/html/omron/cj1w-scu22/cj1w-scu22_operation-manual_742498315.webp)
9-37
9 Troubleshooting and Maintenance
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
9-5 Even
t L
ogs
9
9-5-3 Error De
scr
iptio
ns
Event name
Error Log Data Error
Event code
0474 0000 hex
Meaning
An error occurred in the error log data.
Source
PLC Function Module
Source details
CJ-series Unit
Detection
timing
Continuously
Error attributes
Level
Minor fault
Recovery
Cycle the power
supply.
Log category
System
Effects
User program
Continues.
Operation
The Unit will stop if the error was detected in the self
check when the power supply was cycled or the Controller
was reset. Operation continues if the error occurs during
operation.
System-defined
variables
Variable
Data type
Name
None
---
---
Cause and
correction
Assumed cause
Correction
Prevention
There is a source of noise nearby.
Implement noise countermeasures.
Use the Unit away from sources of
noise.
Non-volatile memory failure
If the above cause does not apply,
replace the Unit.
None
Attached
information
None
Precautions/
Remarks
None
Event name
Protocol Data Error
Event code
1480 0000 hex
Meaning
A protocol data checksum error has occurred.
Source
PLC Function Module
Source details
CJ-series Unit
Detection
timing
At power ON or
Controller reset
Error attributes
Level
Minor fault
Recovery
Cycle the power
supply or reset
the Controller.
Log category
System
Effects
User program
Continues.
Operation
The Serial Communications Unit will not operate in Proto-
col Macro Mode. This error has no affect on operation in
Host Link mode.
System-defined
variables
Variable
Data type
Name
None
---
---
Cause and
correction
Assumed cause
Correction
Prevention
The communications connector with
the CX-Protocol was disconnected or
the power supply to the Controller
was interrupted during transfer of the
protocol data from the CX-Protocol.
Transfer the protocol data again from
the CX-Protocol.
Do not interrupt the power supply to
the Controller during transfer of proto-
col data.
The Serial Communications Unit
failed.
If this error occurs after transferring
the protocol data again, replace the
Serial Communications Unit.
None
Attached
information
None
Precautions/
Remarks
None
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...