The following functions read the real time clock of the target system:

DTCurDate Get current date stamp.
DTCurTime Get current time stamp.
DTCurDateTime Get current date and time stamp.
DTDay    Get day from date stamp.
DTMonth  Get month from date stamp.
DTYear   Get year from date stamp.
DTSec    Get seconds from time stamp.
DTMin    Get minutes from time stamp.
DTHour   Get hours from time stamp.
DTMs     Get milliseconds from time stamp.

The following functions format the current date/time to a string:

DAY_TIME With predefined format.
DTFORMAT With custom format.

The following functions are used for triggering operations:

DTAt    Pulse signal at the given date/time.
DTEvery  Pulse signal with long period.

DAY_TIME: get current date or time

Q := DAY_TIME (SEL);

SEL : DINT specifies the wished information (see below).
Q : STRING wished information formatted on a string.

Possible values of SEL input:

DTCURDATE: get current date stamp

Q := DTCurDate ();

Q : DINT    numerical stamp representing the current date.

DTCURTIME: get current time stamp

Q := DTCurTime ();

Q : DINT    numerical stamp representing the current time of the day.

DTCURDATETIME: get current time stamp (function block)

Inst_DTCurDateTime (bLocal);

bLocal : BOOL TRUE if local time is requested (GMT if FALSE).

.Year : DINT Output: current year

.Month : DINT Output: current month

.Day : DINT Output: current day

.Hour : DINT Output: current time: hours

.Min : DINT Output: current time: minutes

.Sec : DINT Output: current time: seconds

.MSec : DINT Output: current time: milliseconds

.TmOfDay : TIME Output: current time of day (since midnight)

.DST : BOOL Output: TRUE if Daylight Saving Time is active

DTYEAR: extract the year from a date stamp

Q := DTYear (iDate);

IDATE : DINT numerical stamp representing a date.
Q : DINT    year of the date (ex: 2004).

DTMONTH: extract the month from a date stamp

Q := DTMonth (iDate);

IDATE : DINT numerical stamp representing a date.
Q : DINT    month of the date (1..12).

DTDAY: extract the day of the month from a date stamp

Q := DTDay (iDate);

IDATE : DINT numerical stamp representing a date.
Q : DINT    day of the month of the date (1..31).

DTHOUR: extract the hours from a time stamp

Q := DTHour (iTime);

ITIME : DINT numerical stamp representing a time.
Q : DINT    Hours of the time (0..23).

DTMIN: extract the minutes from a time stamp

Q := DTMin (iTime);

ITIME : DINT numerical stamp representing a time.
Q : DINT    Minutes of the time (0..59).

DTSEC: extract the seconds from a time stamp

Q := DTSec (iTime);

ITIME : DINT numerical stamp representing a time.
Q : DINT    Seconds of the time (0..59).

DTMS: extract the milliseconds from a time stamp

Q := DTMs (iTime);

ITIME : DINT numerical stamp representing a time.
Q : DINT    Milliseconds of the time (0..999).

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