public void DataPointScaling(float engHi, float engLow, float rawHi, float rawLow)
{
Debug.Print("Enter {0}:DataPointScaling", GetType());
Debug.Indent();
ValuePostGetAction = value => (((value - rawLow) * (engHi - engLow)) / (rawHi - rawLow)) + engLow;
ValuePreSetAction = value => (((value - engLow) * (rawHi - rawLow)) / (engHi - engLow)) + rawLow;
Debug.Unindent();
Debug.Print("Exit {0}:DataPointScaling", GetType());
}
public IPLCDataPoint AddDataPoint(string point, PostGetValue postGetAction = null, PreSetValue preSetAction = null)
{
Debug.Print("Enter {0}:AddDataPoint", GetType());
if (point == null)
{
throw new ArgumentNullException("point");
}
// Look for duplicate point in list
var existingDataPoint = dataPointList.GetPLCDataPoint(point);
// IDEA: Verify that Points are equal
if (existingDataPoint != null)
{
Debug.Print("Symbol found in list returning item");
Debug.Unindent();
Debug.Print("Exit {0}:AddDataPoint", GetType());
return(existingDataPoint);
}
PLCDataPoint dataPoint;
if (point.Trim(' ').Contains(" "))
{
Debug.Print("Address Detected");
string dataType = "";
switch (point.Substring(1, 1))
{
case "D":
{
dataType = "DWORD";
break;
}
case "W":
{
dataType = "WORD";
break;
}
case "B":
{
dataType = "BYTE";
break;
}
default:
{
if (point.Contains("."))
{
dataType = "BOOL";
}
break;
}
}
dataPoint = new PLCDataPoint {
Address = point, Symbol = point, DataType = dataType
};
}
else
{
Debug.Print("Symbol Detected");
try
{
dataPoint = (PLCDataPoint)Project.PCS7SymbolTable.GetEntryFromSymbol(point);
}
catch (NullReferenceException e)
{
throw new ApplicationException("PCS7Project is not intialized ", e);
}
}
if (dataPoint == null)
{
throw new NoNullAllowedException(string.Format("Null Returned from PCS7Project Call for point {0}", point));
}
GetValue getAction = offset => 0;
SetValue setAction = (offset, value) => { };
switch (dataPoint.DataType.ToUpper())
{
case "WORD":
getAction = item => outputImageBuffer.ToBEInt16(item.Offset);
setAction = (item, val) => dataPointList.WriteDataPoints.Push(new WritePLCDataBytes(item.Offset, BigEndianBitConverter.GetBytes((Int16)val)));
break;
case "DWORD":
getAction = item => outputImageBuffer.ToBEInt32(item.Offset);
setAction = (item, val) => dataPointList.WriteDataPoints.Push(new WritePLCDataBytes(item.Offset, BigEndianBitConverter.GetBytes((int)val)));
break;
case "REAL":
getAction = item => outputImageBuffer.ToBESingle(item.Offset);
setAction = (item, val) => dataPointList.WriteDataPoints.Push(new WritePLCDataBytes(item.Offset, BigEndianBitConverter.GetBytes((float)val)));
break;
case "BYTE":
getAction = item => outputImageBuffer.ToBEByte(item.Offset);
setAction = (item, val) => dataPointList.WriteDataPoints.Push(new WritePLCDataBytes(item.Offset, BigEndianBitConverter.GetBytes((byte)val)));
break;
case "BOOL":
getAction = item =>
{
byte by = outputImageBuffer.ToBEByte(item.Offset);
byte bit = (byte)((by >> item.Bit) & 0x01);
return(bit);
};
setAction = (item, val) => dataPointList.WriteDataBits.Push(new WritePLCDataBits(item.Offset, item.Bit, Convert.ToBoolean(val)));
break;
default:
Trace.TraceWarning("Unknown data type for point {1] unable to register read write actions {0}", dataPoint.DataType, point);
break;
}
switch (dataPoint.Address.Trim().ToUpper().First())
{
case 'Q':
dataPoint.ValueGetAction = getAction;
break;
case 'I':
dataPoint.ValueSetAction = setAction;
break;
default:
dataPoint.ValueGetAction = getAction;
dataPoint.ValueSetAction = setAction;
break;
}
if (postGetAction != null)
{
dataPoint.ValuePostGetAction = postGetAction;
}
if (preSetAction != null)
{
dataPoint.ValuePreSetAction = preSetAction;
}
dataPointList.Add(dataPoint);
UpdateImages();
Debug.Unindent();
Debug.Print("Exit {0}:AddDataPoint", GetType());
return(dataPoint);
}
public PLCDataPoint()
{
ValuePostGetAction = value => value;
ValuePreSetAction = value => value;
}
public IPLCDataPoint AddDataPoint(string point, PostGetValue postGetAction = null, PreSetValue preSetAction = null)
{
Debug.Print("Enter {0}:AddDataPoint", GetType());
if (point == null) throw new ArgumentNullException("point");
// Look for duplicate point in list
var existingDataPoint = dataPointList.GetPLCDataPoint(point);
// IDEA: Verify that Points are equal
if (existingDataPoint != null)
{
Debug.Print("Symbol found in list returning item");
Debug.Unindent();
Debug.Print("Exit {0}:AddDataPoint", GetType());
return existingDataPoint;
}
PLCDataPoint dataPoint;
if (point.Trim(' ').Contains(" "))
{
Debug.Print("Address Detected");
string dataType = "";
switch (point.Substring(1,1))
{
case "D":
{
dataType = "DWORD";
break;
}
case "W":
{
dataType = "WORD";
break;
}
case "B":
{
dataType = "BYTE";
break;
}
default:
{
if (point.Contains(".")) dataType = "BOOL";
break;
}
}
dataPoint = new PLCDataPoint { Address = point, Symbol = point, DataType = dataType };
}
else
{
Debug.Print("Symbol Detected");
try
{
dataPoint = (PLCDataPoint)Project.PCS7SymbolTable.GetEntryFromSymbol(point);
}
catch (NullReferenceException e)
{
throw new ApplicationException("PCS7Project is not intialized ", e);
}
}
if (dataPoint == null) throw new NoNullAllowedException(string.Format("Null Returned from PCS7Project Call for point {0}", point));
GetValue getAction = offset => 0;
SetValue setAction = (offset, value) => { };
switch(dataPoint.DataType.ToUpper())
{
case "WORD":
getAction = item => outputImageBuffer.ToBEInt16(item.Offset);
setAction = (item, val) => dataPointList.WriteDataPoints.Push(new WritePLCDataBytes(item.Offset, BigEndianBitConverter.GetBytes((Int16)val)));
break;
case "DWORD":
getAction = item => outputImageBuffer.ToBEInt32(item.Offset);
setAction = (item,val) => dataPointList.WriteDataPoints.Push(new WritePLCDataBytes(item.Offset, BigEndianBitConverter.GetBytes((int)val)));
break;
case "REAL":
getAction = item => outputImageBuffer.ToBESingle(item.Offset);
setAction = (item, val) => dataPointList.WriteDataPoints.Push(new WritePLCDataBytes(item.Offset, BigEndianBitConverter.GetBytes((float)val)));
break;
case "BYTE":
getAction = item => outputImageBuffer.ToBEByte(item.Offset);
setAction = (item, val) => dataPointList.WriteDataPoints.Push(new WritePLCDataBytes(item.Offset, BigEndianBitConverter.GetBytes((byte)val)));
break;
case "BOOL":
getAction = item =>
{
byte by = outputImageBuffer.ToBEByte(item.Offset);
byte bit = (byte)((by >> item.Bit) & 0x01);
return bit;
};
setAction = (item, val) => dataPointList.WriteDataBits.Push(new WritePLCDataBits(item.Offset, item.Bit, Convert.ToBoolean(val)));
break;
default:
Trace.TraceWarning("Unknown data type for point {1] unable to register read write actions {0}", dataPoint.DataType, point );
break;
}
switch (dataPoint.Address.Trim().ToUpper().First())
{
case 'Q':
dataPoint.ValueGetAction = getAction;
break;
case 'I':
dataPoint.ValueSetAction = setAction;
break;
default:
dataPoint.ValueGetAction = getAction;
dataPoint.ValueSetAction = setAction;
break;
}
if (postGetAction != null)
dataPoint.ValuePostGetAction = postGetAction;
if (preSetAction != null)
dataPoint.ValuePreSetAction = preSetAction;
dataPointList.Add(dataPoint);
UpdateImages();
Debug.Unindent();
Debug.Print("Exit {0}:AddDataPoint", GetType());
return dataPoint;
}
