F_GetMaxMonthDays
F_GetMaxMonthDays returns the number of days in a month.
FUNCTION F_GetMaxMonthDays : WORD
VAR_INPUT
VAR_INPUT
wYear : WORD;
wMonth : WORD;
END_VARwYear: Year.
wMonth: Month (1 bis 12).
Return value | Description |
|---|---|
0 | Invalid wMonth parameter. |
> 0 | No error. Number of days in a month. |
Requirements
Development environment | Target system type | PLC libraries to include |
|---|---|---|
TwinCAT v2.9.0 Build > 1030 TwinCAT v2.10.0 Build > 1231 | PC or CX (x86) | TcUtilities.Lib ( Standard.Lib; TcBase.Lib; TcSystem.Lib are included automatically ) |
TwinCAT v2.10.0 Build >= 1301 | CX (ARM) |