/// <summary>
/// This method retrieves an energy value from the meter and formats it according
/// to the meter's formatting rules established in the meter's program
/// </summary>
/// <returns></returns>
/// <remarks >
/// MM/DD/YY who Version Issue# Description
/// -------- --- ------- ------ ---------------------------------------
/// 12/07/06 mah 8.00.00 N/A Created
/// </remarks>
protected string GetEnergyValue(ref SCSDevice device)
{
String strValue;
if (RegisterType == 0x00 || RegisterType == 0x02 || RegisterType == 0x03)
{
strValue = device.ReadFixedBCDValue(device.TranslateDisplayAddress(this), 4, 7);
}
else if (RegisterType == 0x07)
{
strValue = device.ReadFloatingBCDValue(device.TranslateDisplayAddress(this), 3);
}
else
{
strValue = "";
}
if (strValue.Length > 0)
{
// Now that we have a value that we can display we need to format it to match
// the display format currently configured in the meter
strValue = FormatDisplayValue(strValue, device.EnergyFormat);
}
return(strValue);
}
/// <summary>
/// This method retrieves a BCD floating point from the meter. Note that the
/// value is returned as a string in order to prevent any rounding or client formatting
/// issues.
/// </summary>
/// <returns></returns>
/// <remarks >
/// MM/DD/YY who Version Issue# Description
/// -------- --- ------- ------ ---------------------------------------
/// 12/07/06 mah 8.00.00 N/A Created
/// 03/12/07 mah 8.00.18 Removed leading zeros per SCR #2459
/// </remarks>
protected string GetFixedBCDValue(ref SCSDevice device)
{
String strValue = "";;
int nBasepageAddress = device.TranslateDisplayAddress(this);
// A basepage address of zero indicates that the item is either undefined
// or not displayable - simply return an empty string in this case
if (nBasepageAddress != 0x00)
{
if (RegisterClass == SCSDisplayClass.ExtendedBCDValue)
{
// The extended BCD format is XXX.XXX - we need to treat this a 3 byte BCD integer
// and manually insert the decimal point
int nBCDValue = device.ReadBCDInteger(device.TranslateDisplayAddress(this), 3);
double fValue = (nBCDValue / 1000.0);
strValue = fValue.ToString("##0.000", CultureInfo.InvariantCulture);
}
else if (RegisterType == 0x01)
{
strValue = device.ReadFixedBCDValue(device.TranslateDisplayAddress(this), 1, 2);
}
else if (RegisterType == 0x02)
{
strValue = device.ReadFixedBCDValue(device.TranslateDisplayAddress(this), 1, 3);
}
}
// Remove leading zeros - addresses SCR #2459
strValue = strValue.TrimStart('0');
// But did we get trim too much?
int nDecimalLocation = strValue.IndexOf('.');
// if so, add the initial zero back
if (nDecimalLocation < 1)
{
strValue = strValue.Insert(0, "0");
}
return(strValue);
}