Programming The Real Time Clock Functions - IMO Precision Controls i3 Tutorial

Programming the Real Time Clock Functions

There is only one specific time function and that is to set the RTC clock. This is not
the only way to set the clock as it can be synchronised with the PC.
To use the RTC we need to use the comparison functions and the specific System
Registers where the time is stored.
SR Number Description
%SR0044 RTC Seconds
%SR0045 RTC Minutes
%SR0046 RTC Hours
%SR0047 RTC Day of the Month
%SR0048 RTC Month
%SR0049 RTC Year
%SR0050 RTC Day of the Week
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Real Time Clock
Name
RTC_SEC
RTC_MIN
RTC_HOUR
RTC_DATE
RTC_MON
RTC_YEAR
RTC_DAY
4
Limits
0-59
0- 59
0 - 23
1 - 31
1 – 12
(1 = January)
1996 – 2095
1 – 7
(1 = Sunday)