internal static ClockResult ExtractClock(ReadClockRequest request, FINSResponse response)
{
if (response.Data.Length < DATE_LENGTH + DAY_OF_WEEK_LENGTH)
{
throw new FINSException("The Response Data Length of '" + response.Data.Length.ToString() + "' was too short - Expecting a Length of '" + (DATE_LENGTH + DAY_OF_WEEK_LENGTH).ToString() + "'");
}
ReadOnlyMemory <byte> data = response.Data;
return(new ClockResult
{
ClockDateTime = getClockDateTime(data.Slice(0, DATE_LENGTH).ToArray()),
DayOfWeek = BCDConverter.ToByte(data.ToArray()[DATE_LENGTH]),
});
}
private static DateTime getClockDateTime(byte[] bytes)
{
byte year = BCDConverter.ToByte(bytes[0]);
byte month = BCDConverter.ToByte(bytes[1]);
byte day = BCDConverter.ToByte(bytes[2]);
byte hour = BCDConverter.ToByte(bytes[3]);
byte minute = BCDConverter.ToByte(bytes[4]);
byte second = BCDConverter.ToByte(bytes[5]);
if (year < 70)
{
return(new DateTime(2000 + year, month, day, hour, minute, second));
}
else if (year < 100)
{
return(new DateTime(1900 + year, month, day, hour, minute, second));
}
throw new FINSException("Invalid DateTime Values received from the PLC Clock");
}
