IDEC MicroSmart Pentra - Manual (Page 69)

W EB S ERVER CPU M ODULE U SER ’ S M ANUAL FC9Y-B1278 5-9
5: F UNCTION A REA S ETTINGS
Adjusting the time zone with a special data register (D8413)
The time zone (GMT-12:00 to GMT+13:00) configured in the function area settings can be adjusted using D8413 in a
multiple of 15 minutes. The time zone after the adjustment should be within GMT-12:00 to GMT+13:00. For example,
when the time zone configured in the function area settings is GMT+9:00, and D8413 is 1, 15 minutes are added to the
time zone, and the adjusted time zone will be GMT+09:15. When D8413 is -2, 30 minutes are subtracted from the time
zone, and the adjusted time zone will be GMT+8:30.
Special Data Registers
Device Address Description Operation
D8413 Time Zone Offset
The time zone can be adjusted. When 1 is stored in D8413, the clock
will advance by 15 minutes. When -1 is stored in D8413, the clock will
be set back by 15 minutes. The valid range of the time zone after the
adjustment is GMT-12:00 to GMT+13:00.