/// <summary>
/// Updates the measurement and calculates the new control output.
/// </summary>
public double UpdateMeasurement(AnalogItem<double> source)
{
Range range = source.EURange;
m_measurement.Value = source.Value;
// clamp the setpoint.
if (range != null)
{
if (m_setPoint.Value > range.High)
{
m_setPoint.Value = range.High;
}
if (m_setPoint.Value < range.Low)
{
m_setPoint.Value = range.Low;
}
}
// calculate error.
m_controlOut.Value = m_setPoint.Value - m_measurement.Value;
if (range != null)
{
m_controlOut.Value /= range.Magnitude;
if (Math.Abs(m_controlOut.Value) > 1.0)
{
m_controlOut.Value = (m_controlOut.Value < 0)?-1.0:+1.0;
}
}
// return the new output.
return m_controlOut.Value;
}
/// <summary>
/// Returns the value as a percentage of the range.
/// </summary>
private double GetPercentage(AnalogItem <double> value)
{
double percentage = value.Value;
Range range = value.EURange;
if (range != null)
{
percentage /= Math.Abs(range.High - range.Low);
if (Math.Abs(percentage) > 1.0)
{
percentage = 1.0;
}
}
return(percentage);
}
/// <summary>
/// Updates the measurement and calculates the new control output.
/// </summary>
public double UpdateMeasurement(AnalogItem <double> source)
{
Range range = source.EURange;
m_measurement.Value = source.Value;
// clamp the setpoint.
if (range != null)
{
if (m_setPoint.Value > range.High)
{
m_setPoint.Value = range.High;
}
if (m_setPoint.Value < range.Low)
{
m_setPoint.Value = range.Low;
}
}
// calculate error.
m_controlOut.Value = m_setPoint.Value - m_measurement.Value;
if (range != null)
{
m_controlOut.Value /= range.Magnitude;
if (Math.Abs(m_controlOut.Value) > 1.0)
{
m_controlOut.Value = (m_controlOut.Value < 0)?-1.0:+1.0;
}
}
// return the new output.
return(m_controlOut.Value);
}
/// <summary>
/// Returns the value as a percentage of the range.
/// </summary>
private double GetPercentage(AnalogItem<double> value)
{
double percentage = value.Value;
Range range = value.EURange;
if (range != null)
{
percentage /= Math.Abs(range.High - range.Low);
if (Math.Abs(percentage) > 1.0)
{
percentage = 1.0;
}
}
return percentage;
}