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Auxiliary Area Section 9-11
User Data Revision Times
Information on Read Protection Using a Password
Name Address Description Access
User Program Date
(Not supported by CJ1@-
CPU@@ CPU Units.)
A090 to
A093
These words contain in BCD the date and time that the user
program was last overwritten.
A09000 to A09007: Seconds (00 to 59)
A09008 to A09015: Minutes (00 to 59)
A09100 to A09107: Hour (00 to 23)
A09108 to A09115: Day of month (01 to 31)
A09200 to A09207: Month (01 to 12)
A09208 to A09215: Year (00 to 99)
A09308 to A09307: Day of the week
(00: Sunday, 01: Monday, 02: Tuesday, 03: Wednesday,
04: Thursday, 05: Friday, 06: Saturday)
Read-only
Parameter Date
(Not supported by CJ1@-
CPU@@ CPU Units.)
A094 to
A097
These words contain in BCD the date and time that the
parameters were last overwritten.
A09400 to A09407: Seconds (00 to 59)
A09408 to A09415: Minutes (00 to 59)
A09500 to A09507: Hour (00 to 23)
A09508 to A09515: Day of month (01 to 31)
A09600 to A09607: Month (01 to 12)
A09608 to A09615: Year (00 to 99)
A09708 to A09707: Day of the week
(00: Sunday, 01: Monday, 02: Tuesday, 03: Wednesday,
04: Thursday, 05: Friday, 06: Saturday)
Read-only
Name Address Description Access
UM Read Protection Flag
(Unit version 2.0 or later)
A09900 Indicates whether the entire user program in the PLC is
read-protected.
0: UM not read-protected.
1: UM read-protected.
Read-only
Task Read Protection Flag
(Unit version 2.0 or later)
A09901 Indicates whether read protection is set for individual tasks.
0: Tasks not read-protected.
1: Tasks read-protected.
Read-only
Program Write Protection for
Read Protection
(Unit version 2.0 or later)
A09902 Indicates whether the program is write-protected.
0: Write-enabled.
1: Write-protected.
Read-only
Enable/Disable Bit for
Program Backup
(Unit version 2.0 or later)
A09903 Indicates whether creating a backup program file (.OBJ) is
enabled or disabled.
0: Enabled.
1: Disabled.
Read-only
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