Chapter 12 SD Additional Function
When checking the saved drive, an add-on folder is created under the model folder and the file is created in the Config,
Compare folder.
When the SD card is inserted into the SD card slot of the PLC, the flag(% KW541) of SD additional features is
displayed according to the values set in the Config.
SD additional features mode
If you press the SD CMD button once for more than 0.7 second and less than 2 seconds, the flag(%KX8640) will be
turned On and the PLC update operation will be executed while the SD RD/WR LED and SD additional features are
running.
When the comparison is completed normally, the flag(%KX8640) is turned Off and the completion flag of SD
additional features (%KX8642) is turned On while the SD RD/WR LED and SD additional features are running.
If an error occurs during operation, the SD additional function error flag (%KX8641) is turned On and the error value
is displayed in the SD additional function error code (%KW542).
(1) When there is a discrepancy of the comparison, the SD comparison result flag (% KX8643) is turned Off and if it
is the same, the SD comparison flag is turned On.
(2) If you check the item, 'Save comparison result to file' when executing ‘Export to SD card’, the result file
(CmpResult.csv) is created in the ‘Compare’ folder and the comparison result is saved.
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