Mitsubishi Electric melsec q03ud(E)cpu - 6.18 Error History

CHAPTER6 FUNCTIONS
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6.18 Error History
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6.18 Error History
This function stores an error detected by the self-diagnostic function and the detection time as an error history in a
memory.
Select [Diagnostics] [PLC diagnostics] of GX Developer to check the history.
The detection time is based on the clock in the CPU module. Make sure to set the correct time before the first use of the
CPU module. ( Section 6.5)
(1) Storage area
All stored histories are saved to the storage memory for error history of the CPU module.
*1: When the number of storable histories is exceeded, stored histories are overwritten by the number of latest histories in
chronological order.
(2) How to clear error history
To clear the storage memory for error history and error history file, select [Diagnostics] [PLC diagnostics] in
GX Developer and click the button.
This method clears all data stored in the storage memory for error history of the CPU module and error history file
in a memory card.
Table6.30 Storage area for error history file
Storagearea Thenumberofstorablehistories
CPU module built-in memory
Maximum 100
*1
Clear log