/// <summary>
/// Reads the TIME out of the stream. Time Format must be set to
/// a correct value for this to work correctly.
/// </summary>
/// <returns>DateTime representing the time of day</returns>
// Revision History
// MM/DD/YY who Version Issue# Description
// -------- --- ------- ------ -------------------------------------------
// 10/12/06 RCG 7.35.00 N/A Created
public TimeSpan ReadTIME(TM_FORMAT TimeFormat)
{
TimeSpan tsValue;
switch (TimeFormat)
{
case TM_FORMAT.UINT32_TIME:
{
UInt32 uiNumSeconds;
int iHours;
int iMinutes;
int iSeconds;
// Format in this case is the total number of seconds since
// 00:00:00
uiNumSeconds = base.ReadUInt32();
iHours = (int)(uiNumSeconds / 3600);
iMinutes = (int)((uiNumSeconds % 3600) / 60);
iSeconds = (int)(uiNumSeconds % 60);
tsValue = new TimeSpan(iHours, iMinutes, iSeconds);
break;
}
default:
{
throw (new Exception("Selected Time Format is not implemented"));
}
}
return(tsValue);
}
/// <summary>
/// Reads the STIME out of the stream. Time Format must be set
/// to correct value for this to work correctly.
/// </summary>
/// <returns>DateTime</returns>
// Revision History
// MM/DD/YY who Version Issue# Description
// -------- --- ------- ------ ---------------------------------------
// 09/25/06 AF 7.40.00 N/A Created
// 11/17/06 AF 8.00.00 Corrected bug with time calculation
// 03/28/07 AF 8.00.22 2791 This is really Kevin's fix. LTIME uses a
// reference date of 1/1/1970, not 1/1/2000
// 06/25/08 AF 1.50.44 116853 This is a hack. There is a firmware bug
// where an STIME field is initialized with
// 0xFFFFFFFF instead of zero. We will get
// an out of bounds exception if we try to
// add that to the reference date.
//
public DateTime ReadSTIME(TM_FORMAT TimeFormat)
{
DateTime dtValue;
switch (TimeFormat)
{
case TM_FORMAT.UINT32_TIME:
{
UInt32 uiNumMinutes;
// Format in this case is the first four bytes indicate
// the number of minutes since Jan. 1st 1970.
uiNumMinutes = base.ReadUInt32();
dtValue = STIMEReferenceDate;
// If the time has been initialized with all FFs or a high number this could fail
try
{
dtValue = dtValue.AddMinutes((double)uiNumMinutes);
}
catch (Exception)
{
// Just go with the reference date
}
break;
}
//TODO: Handle other types here...
default:
{
throw (new Exception("Selected Time Format is not implemented"));
}
}
return(dtValue);
}
/// <summary>
/// Reads the LTIME out of the stream. Time Format must be set
/// to correct value for this to work correctly.
/// </summary>
/// <returns>DateTime</returns>
// Revision History
// MM/DD/YY Who Version Issue# Description
// -------- --- ------- ------ -------------------------------------------
// Created
// 03/28/07 AF 8.00.22 2791 This is really Kevin's fix. LTIME uses a
// reference date of 1/1/1970, not 1/1/2000
// 05/11/09 AF 2.20.04 If an LTIME field is initialized with
// 0xFFFFFFFF instead of zero, we will get an
// out of bounds exception if we try to add
// the minutes to the reference date.
// 05/15/14 MDP Added support for uint8 time, GE meters use this
//
public DateTime ReadLTIME(TM_FORMAT TimeFormat)
{
DateTime dtValue;
switch (TimeFormat)
{
case TM_FORMAT.UINT32_TIME:
{
UInt32 uiNumMinutes;
uint uiNumSeconds;
// Format in this case is the first four bytes indicate
// the number of minutes since Jan. 1st 1970. The last
// byte indicates number of seconds.
uiNumMinutes = base.ReadUInt32();
uiNumSeconds = base.ReadByte();
dtValue = LTIMEReferenceDate;
// If the time has been initialized with all FFs, don't
// try to use it -- it's invalid
if (0xFFFFFFFF > uiNumMinutes)
{
dtValue = dtValue.AddMinutes((double)uiNumMinutes);
dtValue = dtValue.AddSeconds((double)uiNumSeconds);
}
break;
}
//TODO: Handle other types here...
//case TM_FORMAT.UINT8_TIME:
//{
// //uint8: year, month, day, hour, minute, second
// byte byYear;
// byte byMonth;
// byte byDay;
// byte byNumHours;
// byte byNumMinutes;
// byte byNumSeconds;
// byYear = base.ReadByte();
// byMonth = base.ReadByte();
// byDay = base.ReadByte();
// byNumHours = base.ReadByte();
// byNumMinutes = base.ReadByte();
// byNumSeconds = base.ReadByte();
// dtValue = new DateTime(2000, 1, 1, 0, 0, 0, DateTimeKind.Local);
// dtValue = dtValue.AddYears(byYear);
// dtValue = dtValue.AddMonths(byMonth - 1);
// dtValue = dtValue.AddDays(byDay - 1);
// dtValue = dtValue.AddHours(byNumHours);
// dtValue = dtValue.AddMinutes(byNumMinutes);
// dtValue = dtValue.AddSeconds(byNumSeconds);
// break;
//}
default:
{
throw(new Exception("Selected Time Format is not implemented"));
}
}
return(dtValue);
}
