CJ2 CPU Unit Software User's Manual - CIP ETI

10 CPU Unit Functions10-1-2 Times Stored in MemoryWords in the Auxiliary Area automatically store the times when the power is turned ON, the times whenthe power is turned OFF, the number of power interruptions, the total power ON time, the times whenthe user memory (programs and parameters) is written, and the times when operation is started andstopped. The times stored in memory must not be used if the battery is not connected or if the batteryvoltage is low.Power ON Clock DataThe year, month, day, and time that the PLC is turned ON is stored in the following Auxiliary Areawords.Name Address DescriptionPower ON ClockData 1Power ON ClockData 2Power ON ClockData 3Power ON ClockData 4Power ON ClockData 5Power ON ClockData 6Power ON ClockData 7Power ON ClockData 8Power ON ClockData 9Power ON ClockData 10A720 toA722A723 toA725A726 toA728A729 toA731A732 toA734A735 toA737A738 toA740A741 toA743A744 toA746A747 toA749The data is BCD.A720.00 to A720.07: Seconds (00 to 59)A720.08 to A720.15: Minutes (00 to 59)A721.00 to A721.07: Hour (00 to 23)A721.08 to A721.15: Day of month (01 to 31)A722.00 to A722.07: Month (01 to 12)A722.08 to A722.15: Year (00 to 99)These words contain the startup time/date for the second-to-last time that powerwas turned ON. The data is BCD and the storage format is the same as wordsA720 to A722.These words contain the startup time/date for the third-to-last time that powerwas turned ON. The data is BCD and the storage format is the same as wordsA720 to A722.These words contain the startup time/date for the fourth-to-last time that powerwas turned ON. The data is BCD and the storage format is the same as wordsA720 to A722.These words contain the startup time/date for the fifth-to-last time that powerwas turned ON. The data is BCD and the storage format is the same as wordsA720 to A722.These words contain the startup time/date for the sixth-to-last time that powerwas turned ON. The data is BCD and the storage format is the same as wordsA720 to A722.These words contain the startup time/date for the seventh-to-last time that powerwas turned ON. The data is BCD and the storage format is the same as wordsA720 to A722.These words contain the startup time/date for the eighth-to-last time that powerwas turned ON. The data is BCD and the storage format is the same as wordsA720 to A722.These words contain the startup time/date for the ninth-to-last time that powerwas turned ON. The data is BCD and the storage format is the same as wordsA720 to A722.These words contain the startup time/date for the tenth-to-last time that powerwas turned ON. The data is BCD and the storage format is the same as wordsA720 to A722.10-4 CJ2 CPU Unit Software User’s Manual