Chapter 6 Function of CPU Module
6 - 9
6.6 Saving Operation History
For operation history, there are 4 types such as error history, mode conversion history, power shutdown history
and system history.
The time, numbers and operation contents that each event occurred, are saved in the memory and is monitored
conveniently through XG5000.
Operation history is kept saving in PLC unless it is deleted by XG5000 etc.
6.6.1 Error History
This saves the error history occurred during operation.
• Saves the error code, date, time, error detailed contents etc.
• Saves up to max. 2048
• Automatic release in case that memory backup is broken by battery voltage falling etc.
6.6.2 Mode Conversion History
This saves the changed mode information and time in case of operation mode change.
• Saves the date, time, mode conversion contents
• Saves up to max. 1024
6.6.3 Power Shutdown History
This saves the time that the power is ON or OFF with ON/OFF information.
• Saves ON/OFF information, date, time
• Saves up to max. 1024
6.6.4 System History
This saves the operation history of system occurred during operation.
• Saves the date, time and operation change contents
• XG5000 operation information, key switch change information
• Saves up to max. 2048
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