Omron CJ1W-SCU22, Руководство по эксплуатации, Страница: 321 / 478

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9 Troubleshooting and Maintenance
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
9-5 Even
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9-5-3 Error De
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Event name Tr (Receive Wait Monitoring Time) Exceeded Event code 64A2 0000 hex
Meaning The receive waiting time exceeded the Receive Wait Monitoring Time.
Source PLC Function Module Source details CJ-series Unit Detection
timing After serial com-
munications start
Error attributes Level Observation Recovery --- Log category System
Effects User program Continues. Operation Not affected.
System-defined
variables Variable Data type Name
None --- ---
Cause and
correction Assumed cause Correction Prevention
Noise Implement noise countermeasures. Use the Unit away from sources of
noise. Implement noise countermea-
sures.
The monitoring time is shorter than
the actual completion time. Adjust the monitoring time to match
the actual completion time. Adjust the monitoring time to match
the actual completion time.
Attached
information Attached information 1: Port number where error was detected
Precautions/
Remarks None
Event name FCS Check Error Event code 64A3 0000 hex
Meaning One of the following errors occurred in the converted protocol 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 message does not match the check code that was calculated from the
received message.
Source PLC Function Module Source details CJ-series Unit Detection
timing After serial com-
munications start
Error attributes Level Observation Recovery --- Log category System
Effects User program Continues. Operation Not affected.
System-defined
variables Variable Data type Name
None --- ---
Cause and
correction Assumed cause Correction Prevention
Noise Implement noise countermeasures.
Increase the setting for the number of
resends in the device that sent the
command.
If required, perform retry processing
for communications. Use the Unit away from sources of
noise. Implement noise countermea-
sures.
Increase the setting for the number of
resends in the device that sends the
command.
If required, perform retry processing
for communications.
There was a mistake in the CRC code
that was attached to the command
frame. Attach the correct CRC code. Attach the correct CRC code.
Attached
information Attached information 1: Port number where error was detected
Precautions/
Remarks None