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5 Error Processing, Maintenance and Inspection
CJ-series High-speed Counter Units Operation Manual for NJ-series CPU Unit(W492)
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5-3-3 Error D
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Error Descriptions
Event name
Unit Error
Event code
6801 0000 hex
Meaning
An error occurred in the High-speed Counter Unit.
Source
PLC Function Module
Source details
CJ-series Unit
Detection
timing
Depends on the
nature of the
error.
Error attributes
Level
Minor fault
Recovery
Depends on the
cause.
Log category
System
Effects
User program
Continues.
Operation
Depends on the nature of the error. Check error informa-
tion in the operation manual of the High-speed Counter
Unit.
System-defined
variables
Variable
Data type
Name
None
---
---
Cause and
correction
Assumed cause
Correction
Prevention
There is an error in the Special Unit
Setup.
Check the attached information with
the Sysmac Studio or check error
codes 1 and 2 in the error history of
the High-speed Counter Unit. Perform
corrective actions for system recovery
following the descriptions for error
codes given in the manual of the
High-speed Counter Unit.
Depends on the nature of the error.
Check the error information in the
operation manual of the High-speed
Counter Unit and perform the
required corrective actions.
An overflow or underflow error
occurred.
An illegal preset value was used.
A CPU Unit monitor error or bus error
occurred.
Attached
information
Attached information 1: Error code 1
Attached information 2: Error code 2
Precautions/
Remarks
None