LSIS Master-K K1000S - Special Functions of CPU Module; RTC (Real Time Clock) Function

Chapter 4 CPU modules MASTER-K
4-22
4.5 Special functions of CPU module
4.5.1 RTC (Real Time Clock) function
MASTER-K 200S/300S/1000S series includes RTC function. (K200S-A does not have
RTC function) Clock operation by the RTC function is continued with a battery or super
capacitor when the CPU is powered off.
1) Clock data
Clock data is the data comprised of year, month, day, hour, minute, second, and date.
Data name Description
Year 4 digits of the Christian Era
Month 1 to 12
Day 1 to 31 (A leap year is distinguished automatically)
Hour 0 to 23 (24 hours)
Minute 0 to 59
Second 0 to 59
0 Sunday
1 Monday
2 Tuesday
3 Wednesday
4 Thursday
5 Friday
Date
6 Saturday
2) Precision
Max. 1.728 second per day (general temperature)
Remark
1. The RTC data does not have factory default setting. Please write a correct RTC data
before using RTC function first time.
2. If unreasonable RTC data is written to the CPU, the RTC function may operate abnormally.
Example : 13 (month) 32 (day)