// Selections for the Switch actuator:
// element 0 -> Means "disconnected" or "open circuit" (init = 0) and is
// associated with the "min" message.
// element 1 -> Means "connect" or "close the circuit", (init = 1) and is
// associated with the "max" message.
/// <summary>
/// Initializes the actuator </summary>
/// <param name="Init"> The initialization string.
/// </param>
/// <exception cref="OneWireException">
/// </exception>
public virtual void initActuator()
{
SwitchContainer switchcontainer = DeviceContainer as SwitchContainer;
// initialize the ActuatorSelections Vector
ActuatorSelections.Add(Min); // for switch, use min and max
ActuatorSelections.Add(Max);
// Now, initialize the switch to the desired condition.
// This condition is in the <init> tag and, of course, the
// <channel> tag is also needed to know which channel to
// to open or close.
int channelValue;
int switchStateIntValue = 0;
int initValue = Int32.Parse(Init);
channelValue = Channel;
byte[] state = switchcontainer.readDevice();
bool switch_state = switchcontainer.getLatchState(channelValue, state);
if (switch_state)
{
switchStateIntValue = 1;
}
else
{
switchStateIntValue = 0;
}
if (initValue != switchStateIntValue)
{
// set the switch's state to the value specified in XML file
switchcontainer.setLatchState(channelValue, !switch_state, false, state);
switchcontainer.writeDevice(state);
}
}
// Selections for the D2A actuator:
// element 0 -> Means change to the first wiper position.
//
// element 1 -> Means change to the second wiper position.
//
// .
// .
// .
// last element 255? -> Means change to the last wiper position.
/// <summary>
/// Initializes the actuator </summary>
/// <param name="Init"> The initialization string.
/// </param>
/// <exception cref="OneWireException">
/// </exception>
public virtual void initActuator()
{
PotentiometerContainer pc = (PotentiometerContainer)DeviceContainer;
int numOfWiperSettings;
int resistance;
double offset = 0.6; // this seems about right...
double wiperResistance;
string selectionString;
// initialize the ActuatorSelections Vector
// must first read the device
byte[] state = pc.readDevice();
// set current wiper number from xml tag "channel"
pc.setCurrentWiperNumber(Channel, state);
// now, write to device to set the wiper number
pc.writeDevice(state);
// now, extract some values to initialize the ActuatorSelections
// get the number of wiper positions
numOfWiperSettings = pc.numberOfWiperSettings(state);
// get the resistance value in k-Ohms
resistance = pc.potentiometerResistance(state);
// calculate wiper resistance
wiperResistance = (double)((double)(resistance - offset) / (double)numOfWiperSettings);
// add the values to the ActuatorSelections Vector
selectionString = resistance + " k-Ohms"; // make sure the first
ActuatorSelections.Add(selectionString); // element is the entire resistance
for (int i = (numOfWiperSettings - 2); i > -1; i--)
{
double newWiperResistance = (double)(wiperResistance * (double)i);
// round the values before putting them in drop-down list
int roundedWiperResistance = (int)((newWiperResistance + offset) * 10000);
selectionString = (double)((double)roundedWiperResistance / 10000.0) + " k-Ohms";
ActuatorSelections.Add(selectionString);
}
}