Omron NJ501-1 Series User Manual page 195

Event name Real-Time Clock Failed
Meaning The real-time clock in the CPU Unit failed.
Source PLC Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
_CurrentTime
Cause and Assumed cause
correction
The CPU Unit clock has failed.
Attached None
information
Precautions/ None
Remarks
Event name Low Battery Voltage
Meaning The voltage of the Battery has dropped.
Source PLC Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
None
Cause and Assumed cause
correction
The battery voltage is low.
The battery connector has come
loose.
The Battery is missing.
Attached None
information
Precautions/ You may loose the user data the next time that the power supply is interrupted. You can change the event level to the
Remarks observation level. If you change the level to the observation level, recovery procedures are not required.
NJ-series CPU Unit Hardware User's Manual (W500)
Source details
Minor fault Recovery
Continues. Operation
Data type
DATE_AND_TIME
Correction
Replace the CPU Unit.
Source details
Minor fault Recovery
Continues. Operation
Data type
---
Correction
Replace the Battery.
Reconnect the connector and make
sure it is mated correctly.
Install a Battery.
5 Troubleshooting
Event code 00080000 hex
None Detection
timing
Cycle the power Log category
supply.
The System Time is not defined. The clock information
recorded by CJ-series Units is also not defined.
Name
System Time
Prevention
None
Event code 000B0000 hex
None Detection
timing
Error reset Log category
No affected
Name
---
Prevention
Regularly replace the Battery.
Check for vibration and shock.
Install a Battery.
At power ON or
Controller reset
System
Continuously
System
5
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