F_GetMonthOfDOY

F_GetMonthOfDOY 1:

The function calculates the month based on the day number in the year.

FUNCTION F_GetMonthOfDOY: WORD

F_GetMonthOfDOY 2: Inputs

VAR_INPUT
    wYear  : WORD;
    wDOY   : WORD;
END_VAR

Name

Type

Description

wYear

WORD

Year (0 ~ 2999)

wDOY

WORD

Number of the day in the specified year whose month is to be determined (1 ~ 366).

Return parameter

Description

0

Error, wrong wYear or wDOY parameter value.

> 0

No error. Month (1 ~ 12).

Example:

PROGRAM P_TEST_DOY
VAR
    wYear  : WORD;
    wDOY   : WORD;
    wMonth : WORD;
END_VAR
wYear   := 2009;
wDOY    := 31;
wMonth  := F_GetMonthOfDOY( wYear, wDOY );(* wMonth = 1 *)

wYear   := 2009;
wDOY    := 32;
wMonth  := F_GetMonthOfDOY( wYear, wDOY );(* wMonth = 2 *)

wYear   := 2009;
wDOY    := 60;
wMonth  := F_GetMonthOfDOY( wYear, wDOY );(* wMonth = 3 *)

Requirements

Development environment

Target platform

PLC libraries to be integrated (category group)

TwinCAT v3.1.0

PC or CX (x86, x64, ARM)

Tc2_Utilities (System)