public static void Main(string[] args)
{
NetVars srCodesysWriteVars = null;
NetVars srCodesysNetVars = null;
srCodesysWriteVars = new NetVars();
srCodesysWriteVars.IPAdress = "192.168.178.34";
srCodesysWriteVars.CobID = 2;
CDataTypeCollection collect;
//srCodesysWriteVars.Port = 1203;
collect = new CDataTypeCollection(-35, EasyNetVars.DataTypes.inttype);
collect.VariableName = "rcvInt";
srCodesysWriteVars.dataTypeCollection.Add(collect);
collect = new CDataTypeCollection(0.123, EasyNetVars.DataTypes.realtype);
collect.VariableName = "rcvReal";
srCodesysWriteVars.dataTypeCollection.Add(collect);
collect = new CDataTypeCollection(0x1010, EasyNetVars.DataTypes.wordtype);
collect.VariableName = "rcvWord";
srCodesysWriteVars.dataTypeCollection.Add(collect);
collect = new CDataTypeCollection(true, EasyNetVars.DataTypes.booltype);
collect.VariableName = "rcvBool";
srCodesysWriteVars.dataTypeCollection.Add(collect);
for (int i = 0; i < 300; i++)
{
collect = new CDataTypeCollection(123, EasyNetVars.DataTypes.bytetype);
srCodesysWriteVars.dataTypeCollection.Add(collect);
}
//---nur für Konfiguration SPS erforderlich?
srCodesysWriteVars.CreateGVLFile("c:\\GVLFile.GVL");
srCodesysWriteVars.SendValues();
srCodesysNetVars = new NetVars();
srCodesysNetVars.Port = 1204;
srCodesysNetVars.IPAdress = "192.168.178.34";
for (int i = 0; i < 514; i++)
{
srCodesysNetVars.dataTypeCollection.Add(new CDataTypeCollection(EasyNetVars.DataTypes.bytetype));
}
ArrayList ReceiveVar = srCodesysNetVars.ReadValues();
Console.WriteLine(ReceiveVar[513].ToString());
Console.ReadKey();
}
/// <summary>
/// Reads values from CoDeSys PLC. Datatypes are listed in "dataTypeCollection".
/// </summary>
/// <returns>ArrayList which contains the values from CoDeSys PLC</returns>
public ArrayList ReadValues()
{
numberOfTags = dataType.Count;
DateTime dt1 = DateTime.Now;
DateTime dt2;
byte[] receiveBytes = new byte[12];
int elementCount;
bool elementZeroDetected = false;
bool waitForNextElement = true;
int lastTelegramCount = 0;
UInt16 subIndex = 1;
returnList = new ArrayList();
if (udpClient == null)
{
this.connect();
}
while (((receiveBytes[8] != cobID) | receiveBytes == null | waitForNextElement | elementZeroDetected == false | returnList.Count != dataType.Count))
{
dt2 = DateTime.Now;
if ((dt2.Ticks - dt1.Ticks) > 100000000)
{
throw new Exception("Error receiving UDP-Messages; Check cob-ID, Port and IP-Address");
}
receiveBytes = udpClient.Receive(ref iPEndPoint);
elementCount = 20;
#region createTelegramInformation
cTelegramReceive = new CTelegram();
Buffer.BlockCopy(receiveBytes, 0, cTelegramReceive.Identity, 0, 4);
UInt32[] uintarray = new UInt32[1];
UInt16[] uint16array = new UInt16[1];
byte[] bytearray = new byte[1];
Buffer.BlockCopy(receiveBytes, 4, uintarray, 0, 4);
cTelegramReceive.ID = uintarray[0];
Buffer.BlockCopy(receiveBytes, 8, uint16array, 0, 2);
cTelegramReceive.Index = uint16array[0];
Buffer.BlockCopy(receiveBytes, 10, uint16array, 0, 2);
cTelegramReceive.SubIndex = uint16array[0];
subIndex = cTelegramReceive.SubIndex;
Buffer.BlockCopy(receiveBytes, 12, uint16array, 0, 2);
cTelegramReceive.Items = uint16array[0];
Buffer.BlockCopy(receiveBytes, 14, uint16array, 0, 2);
cTelegramReceive.Length = uint16array[0];
Buffer.BlockCopy(receiveBytes, 16, uint16array, 0, 2);
cTelegramReceive.Counter = uint16array[0];
Buffer.BlockCopy(receiveBytes, 18, bytearray, 0, 1);
cTelegramReceive.Flags = bytearray[0];
Buffer.BlockCopy(receiveBytes, 19, bytearray, 0, 1);
cTelegramReceive.Checksum = bytearray[0];
cTelegramReceive.Data = new byte[receiveBytes.Length - 20];
Buffer.BlockCopy(receiveBytes, 20, cTelegramReceive.Data, 0, cTelegramReceive.Data.Length);
#endregion
if ((cTelegramReceive.SubIndex == 0) & (receiveBytes[8] == cobID))
{
elementZeroDetected = true;
returnList.Clear();
lastTelegramCount = 0;
}
if ((lastTelegramCount + 1) != (cTelegramReceive.SubIndex) & lastTelegramCount != 0 & (receiveBytes[8] == cobID))
{
elementZeroDetected = false;
returnList.Clear();
}
if (cobID == cTelegramReceive.Index)
{
lastTelegramCount = cTelegramReceive.SubIndex;
}
if ((lastTelegramCount) != (CountNumberOfDatagrams(returnList.Count) + 1) & lastTelegramCount != 0 & (receiveBytes[8] == cobID))
{
elementZeroDetected = false;
returnList.Clear();
}
if (receiveBytes[8] == cobID & elementZeroDetected)
{
for (int i = 0; i < cTelegramReceive.Items; i++)
{
CDataTypeCollection cDataTypeCollection = (CDataTypeCollection)dataType[returnList.Count];
if (cDataTypeCollection.DataTypes == DataTypes.booltype)
{
bool boolValue = Convert.ToBoolean(receiveBytes[elementCount]);
returnList.Add(boolValue);
elementCount = elementCount + 1;
}
if (cDataTypeCollection.DataTypes == DataTypes.bytetype)
{
byte byteValue = receiveBytes[elementCount];
returnList.Add(byteValue);
elementCount = elementCount + 1;
}
if (cDataTypeCollection.DataTypes == DataTypes.wordtype)
{
UInt16 wordValue = Convert.ToUInt16(receiveBytes[elementCount]
| (receiveBytes[elementCount + 1] << 8));
returnList.Add(wordValue);
elementCount = elementCount + 2;
}
if (cDataTypeCollection.DataTypes == DataTypes.dwordtype)
{
UInt32 dwordValue = ((UInt32)receiveBytes[elementCount]
| ((UInt32)receiveBytes[elementCount + 1] << 8)
| ((UInt32)receiveBytes[elementCount + 2] << 16)
| ((UInt32)receiveBytes[elementCount + 3] << 24));
returnList.Add(dwordValue);
elementCount = elementCount + 4;
}
if (cDataTypeCollection.DataTypes == DataTypes.sinttype)
{
sbyte sintValue = (sbyte)receiveBytes[elementCount];
returnList.Add(sintValue);
elementCount = elementCount + 1;
}
if (cDataTypeCollection.DataTypes == DataTypes.usintType)
{
byte usintValue = receiveBytes[elementCount];
returnList.Add(usintValue);
elementCount = elementCount + 1;
}
if (cDataTypeCollection.DataTypes == DataTypes.inttype)
{
Int16 intValue = BitConverter.ToInt16(receiveBytes, elementCount);
returnList.Add(intValue);
elementCount = elementCount + 2;
}
if (cDataTypeCollection.DataTypes == DataTypes.uinttype)
{
UInt16 usintValue = Convert.ToUInt16(receiveBytes[elementCount]
| (receiveBytes[elementCount + 1] << 8));
returnList.Add(usintValue);
elementCount = elementCount + 2;
}
if (cDataTypeCollection.DataTypes == DataTypes.udinttype)
{
UInt32 udintValue = ((UInt32)receiveBytes[elementCount]
| ((UInt32)receiveBytes[elementCount + 1] << 8)
| ((UInt32)receiveBytes[elementCount + 2] << 16)
| ((UInt32)receiveBytes[elementCount + 3] << 24));
returnList.Add(udintValue);
elementCount = elementCount + 4;
}
if (cDataTypeCollection.DataTypes == DataTypes.dinttype)
{
Int32 dintValue = BitConverter.ToInt32(receiveBytes, elementCount);
returnList.Add(dintValue);
elementCount = elementCount + 4;
}
if (cDataTypeCollection.DataTypes == DataTypes.realtype)
{
float floatValue = BitConverter.ToSingle(receiveBytes, elementCount);
returnList.Add(floatValue);
elementCount = elementCount + 4;
}
if (cDataTypeCollection.DataTypes == DataTypes.lrealtype)
{
double dfloatValue = BitConverter.ToDouble(receiveBytes, elementCount);
returnList.Add(dfloatValue);
elementCount = elementCount + 8;
}
if (cDataTypeCollection.DataTypes == DataTypes.stringtype)
{
string stringValue = System.Text.Encoding.UTF8.GetString(receiveBytes, elementCount, cDataTypeCollection.FieldLength);
int nullSignPosition = stringValue.Length;
for (int j = 0; j < stringValue.Length; j++)
{
if (receiveBytes[elementCount + j] == 0)
{
nullSignPosition = j;
break;
}
}
stringValue = stringValue.Substring(0, nullSignPosition);
returnList.Add(stringValue);
elementCount = elementCount + cDataTypeCollection.FieldLength + 1;
}
}
}
if (((this.CountNumberOfDatagrams(dataType.Count)) <= subIndex) & elementZeroDetected & receiveBytes[8] == cobID)
{
waitForNextElement = false;
}
}
return(returnList);
}
