VC10MkTime
Introducing a date and time (day, mounth, year, hours, minutes, seconds) the VC10MkTime function gives the number of seconds elapsed from 00:00 of the 1 January 1970 until the introduced date.
This is useful to be able to make comparisons between dates.
The function also runs day and month values greater than its natural limits (day > 31 or mounth > 12), automatically calculating the date.
IMPLEMENTATION
VC10MkTime (aglParam, glSumSec)
Parameters:
| IN/OUT | VARIABLE TYPE | EXAMPLE NAME | DIM | |
|---|---|---|---|---|
| IN | ARRGBL | aglParam[01] | L | Day [>0] |
| IN | ARRGBL | aglParam[02] | L | Month [>0] |
| IN | ARRGBL | aglParam[03] | L | Year [1970÷2037] |
| IN | ARRGBL | aglParam[04] | L | Hour [0÷23] |
| IN | ARRGBL | aglParam[05] | L | Minutes [0÷59] |
| IN | ARRGBL | aglParam[06] | L | Seconds [0÷59] |
| OUT | ARRGBL | aglParam[07] | L | Day of the week: 0 = sunday 1 = monday 2 = tuesday 3 = wednesday 4 = thursday 5 = friday 6 = saturday |
| OUT | ARRGBL | aglParam[08] | L | Number of days gone by than the 1 January of the year introduced |
| OUT | ARRGBL | aglParam[09] | L | Error type: 0 = No 1 = Day ≤ 0 2 = Month ≤ 0 3 = Year introduced off limits [1970÷2037] |
| OUT | GLOBAL | glSumSec | L | Sum of seconds elapsed from 00:00 of 1 January 1970 until date introduced |
Example
You want to activate a digital output (ofUscita01) When the date and current time exceeds a previously set date and time.
;Current Date aglParam[1] = 25 aglParam[2] = 6 aglParam[3] = 2009 aglParam[4] = 15 aglParam[5] = 30 aglParam[6] = 55 VC10MkTime (aglParam, glSumSec) glSecActual = glSumSec ;Value in seconds of the current date ;Data to compare aglParam[1] = 1 aglParam[2] = 1 aglParam[3] = 2010 aglParam[4] = 18 aglParam[5] = 00 aglParam[6] = 00 VC10MkTime (aglParam, glSumSec) glSecExpiry = glSumSec ;Value in seconds of the expiration date IF glSecActual GT glSecExpiry SETOUT ofUscita01 ENDIF
Operation notes
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By setting a month value greater than 12 function calculates the date and place it in the year or in subsequent years in relation to that introduced (example: 10/14/2010 will match the date 10/2/2011)
-
By setting a day value greater than the number of days supported by the set month, the function calculates the time and place it in the month or in the following months than that introduced (example: 50/5/2010 will match the date 19/6/2010)