Conversion of Time/Date to seconds
Block name
B97_TIME_DATE_TO_TOTAL_SECONDS
ST call
PROGRAM TEST_B97 VAR SINT1,SINT2,SINT3,SINT4,SINT5,SINT7 :SINT; INT6:INT6; UDINT1: UDINT; FB: LIB.CORE.V1_0.B97_TIME_DATE_TO_TOTAL_SECONDS; END_VAR FB(SEC:= SINT1, MIN:= SINT2,HOUR:=SINT3,DAY:=SINT4,MON:=SINT5,YEAR:=INT6,TOT=>UDINT1,WDAY=>SINT7); END_PROGRAM
Library
LIB\CORE
Version
V1.0
Description
The block converts time and date to total seconds (starting at 1.1.1970, 0:00). Another output is the current weekday.
Inputs
| Input | Type | Description | Default value |
| SEC | SINT | Seconds | 0 |
| MIN | SINT | Minutes | 0 |
| HOUR | SINT | Hours | 0 |
| DAY | SINT | Days | 0 |
| MON | SINT | Months | 0 |
| YEAR | INT | Years | 0 |
Outputs
| Output | Type | Description |
| TOT | UDINT | Number of seconds since 1.1.1970, 00:00 UTC |
| WDAY | SINT | Weekday (0 = Sun, 1 = Mon, …, 6 = Sat) |
Function
The block converts time and date to total seconds (starting at 1.1.1970, 0:00). Another integer output, wday, defines the current day of week (0 = Sunday, 1 = Monday, …, 6 = Saturday). For example, 1.1.1970 01:00 – one hour after the reference time start (i.e. sec=0, min=0, hour=1, day=1, mon=1, year=1970) - the outputs are tot=3600, and wday=4.
Application example
The block, together with B98, is used as an auxiliary block for various time/date conversions, calculating of time spans etc.