public int ReadInput()
{
short value = 0;
_ulStatErrorInfo = _board.DIn(_channelType, out value);
if (_ulStatErrorInfo.Value == ErrorInfo.ErrorCode.NoErrors)
{
if (value != 255)
{
if (_pulseIsCleared)
{
_pulseIsCleared = false;
return(1);
}
}
else
{
_pulseIsCleared = true;
}
}
else
{
if (_ulStatErrorInfo.Value != ErrorInfo.ErrorCode.BadBoard)
{
_log.Warn("DAQ Input error: {0}", _ulStatErrorInfo.Message);
}
}
return(0);
}
public override IObservable <short> Process <TSource>(IObservable <TSource> source)
{
return(Observable.Defer(() =>
{
ErrorInfo configError;
var portType = PortType;
var bitNumber = BitNumber;
var board = new MccBoard(BoardNumber);
if (bitNumber.HasValue)
{
configError = board.DConfigBit(portType, bitNumber.Value, DigitalPortDirection.DigitalIn);
}
else
{
configError = board.DConfigPort(portType, DigitalPortDirection.DigitalIn);
}
ThrowExceptionForErrorInfo(configError);
if (bitNumber.HasValue)
{
return source.Select(input =>
{
var error = board.DBitIn(portType, bitNumber.Value, out DigitalLogicState bitValue);
ThrowExceptionForErrorInfo(error);
return (short)bitValue;
});
}
else
{
return source.Select(input =>
{
var error = board.DIn(portType, out short dataValue);
ThrowExceptionForErrorInfo(error);
return dataValue;
});
}
}));
}