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CodesysNetVars.cs
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CodesysNetVars.cs
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/*
* Created by SharpDevelop.
* User: Stefan Roßmann
* Date: 10.05.2013
* Time: 16:06
*/
using System;
using System.Net;
using System.Net.Sockets;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
namespace EasyNetVars
{
/// <summary>
/// Receive Broadcast Messages from CoDeSys Devices
/// </summary>
public class NetVars
{
private int cobID=1;
private int port=1202;
private int numberOfTags=0;
private List<CDataTypeCollection> dataType = new List<CDataTypeCollection>();
private UdpClient udpClient;
private string ipAddress = "190.201.100.100";
private IPEndPoint iPEndPoint;
private CTelegram cTelegramReceive;
private ArrayList returnList = new ArrayList();
public NetVars()
{
}
/// <summary>
/// closes port used by UDP-Client
/// </summary>
public void disconnect()
{
if (udpClient != null)
{
udpClient.Close();
}
}
/// <summary>
/// create a new UDPClient. Method is not mandatory
/// </summary>
public void connect()
{
udpClient = new UdpClient(port);
udpClient.Client.ReceiveTimeout = 5000;
iPEndPoint = new IPEndPoint(IPAddress.Parse(ipAddress), port);
}
/// <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;
}
/// <summary>
/// Calculate number of datagrams necessary for the number of tags which are defined by "index". Datagrams will be
/// devided if datagram size is more than 256 byte
/// </summary>
/// <param name="index">Tag number for calculation of datagrams</param>
/// <returns>Number of datagrams necessary</returns>
private int CountNumberOfDatagrams(int index)
{
int countValue = 0;
int valueBefore = 0;
int valueAfter = 0;
int returnValue;
for (int i=0; (i<dataType.Count & i<index); i++)
{
valueBefore = countValue;
//1 Byte Breite Datentypen
if ((dataType[i].DataTypes == DataTypes.booltype)
| (dataType[i].DataTypes == DataTypes.bytetype)
| (dataType[i].DataTypes == DataTypes.sinttype)
| (dataType[i].DataTypes == DataTypes.usintType))
{
countValue = countValue + 1;
valueAfter = countValue;
}
//2 Byte Breite Datentypen
if ((dataType[i].DataTypes == DataTypes.wordtype)
| (dataType[i].DataTypes == DataTypes.inttype)
| (dataType[i].DataTypes == DataTypes.uinttype))
{
countValue = countValue + 2;
valueAfter = countValue;
if (valueAfter%256 <= valueBefore%256 & valueAfter%256 != 0)
{
countValue = (int)(256*Math.Ceiling((float)valueBefore/256)) + 2;
}
}
//4 Byte Breite Datentypen
if ((dataType[i].DataTypes == DataTypes.dwordtype)
| (dataType[i].DataTypes == DataTypes.udinttype)
| (dataType[i].DataTypes == DataTypes.dinttype)
| (dataType[i].DataTypes == DataTypes.realtype))
{
countValue = countValue + 4;
valueAfter = countValue;
if (valueAfter%256 <= valueBefore%256 & valueAfter%256 != 0)
{
countValue = (int)(256*Math.Ceiling((float)valueBefore/256)) + 4;
}
}
//8 Byte Breite Datentypen
if ((dataType[i].DataTypes == DataTypes.lrealtype))
{
countValue = countValue + 8;
valueAfter = countValue;
if (valueAfter%256 <= valueBefore%256 & valueAfter%256 != 0)
{
countValue = (int)(256*Math.Ceiling((float)valueBefore/256)) + 8;
}
}
//Stringdatentyp
if ((dataType[i].DataTypes == DataTypes.stringtype))
{
countValue = countValue + dataType[i].FieldLength + 1;
valueAfter = countValue;
if (valueAfter%256 <= valueBefore%256 & valueAfter%256 != 0)
{
countValue = (int)(256*Math.Ceiling((float)valueBefore/256)) + dataType[i].FieldLength + 1;
}
}
}
returnValue = (int)(Math.Floor((float)countValue/256));
if ((countValue % 256) == 0 & returnValue > 0)
returnValue--;
return returnValue;
}
private ushort sendCounter = 0;
public void SendValues()
{
Socket s = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
s.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1);
int numberOfDatagrams = this.CountNumberOfDatagrams(dataType.Count)+1;
int numberOfTagsInDatagram=0;
int datagramCounter=0;
int tagCounter = 0;
numberOfTags = dataType.Count;
byte[] send_buffer;
CTelegram cTelegramSend = new CTelegram();
IPAddress broadcast = IPAddress.Parse(ipAddress);
IPEndPoint endPoint = new IPEndPoint(broadcast, port);
s.EnableBroadcast = true;
for (int k = 0; k < numberOfDatagrams; k++)
{
if (sendCounter >= 65535)
sendCounter = 0;
else
sendCounter++;
numberOfTagsInDatagram = 0;
tagCounter++;
numberOfTagsInDatagram++;
while ((this.CountNumberOfDatagrams(tagCounter) == datagramCounter) & (tagCounter != dataType.Count))
{
numberOfTagsInDatagram++;
tagCounter++;
}
if (this.CountNumberOfDatagrams(tagCounter) > datagramCounter)
{
tagCounter--;
numberOfTagsInDatagram--;
}
#region createTelegramInformatiom
send_buffer = new byte[20];
UInt32[] uintarray = new UInt32[1];
Int32[] intarray = new Int32[1];
UInt16[] uint16array = new UInt16[1];
Int16[] int16array = new Int16[1];
byte[] bytearray = new byte[1];
sbyte[] sbytearray = new sbyte[1];
float[] floatarray = new float[1];
double[] doublearray = new double[1];
Buffer.BlockCopy(cTelegramSend.Identity, 0, send_buffer, 0, 4);
uintarray[0] = cTelegramSend.ID;
Buffer.BlockCopy(uintarray, 0, send_buffer, 4, 4);
cTelegramSend.Index = (ushort)cobID;
uint16array[0] = cTelegramSend.Index;
Buffer.BlockCopy(uint16array, 0, send_buffer, 8, 2);
cTelegramSend.SubIndex = (ushort)datagramCounter;
uint16array[0] = cTelegramSend.SubIndex;
Buffer.BlockCopy(uint16array, 0, send_buffer, 10, 2);
cTelegramSend.Items = (ushort)numberOfTagsInDatagram;
uint16array[0] = cTelegramSend.Items;
Buffer.BlockCopy(uint16array, 0, send_buffer, 12, 2);
cTelegramSend.Counter = (ushort)sendCounter;
uint16array[0] = cTelegramSend.Counter;
Buffer.BlockCopy(uint16array, 0, send_buffer, 16, 2);
send_buffer[18] = cTelegramSend.Flags;
send_buffer[19] = cTelegramSend.Checksum;
int byteCount = 0;
for (int i = 0; i < numberOfTagsInDatagram; i++)
{
switch (dataType[i + this.CountNumberOfDatagrams(tagCounter)].DataTypes)
{
case DataTypes.booltype:
Array.Resize(ref send_buffer, send_buffer.Length + 1);
send_buffer[20 + byteCount] = Convert.ToByte(dataType[i + this.CountNumberOfDatagrams(tagCounter)].SendValue);
byteCount++;
break;
case DataTypes.bytetype:
Array.Resize(ref send_buffer, send_buffer.Length + 1);
send_buffer[20 + byteCount] = Convert.ToByte(dataType[i + this.CountNumberOfDatagrams(tagCounter)].SendValue);
byteCount++;
break;
case DataTypes.wordtype:
Array.Resize(ref send_buffer, send_buffer.Length + 2);
uint16array[0] = Convert.ToUInt16(dataType[i + this.CountNumberOfDatagrams(tagCounter)].SendValue);
Buffer.BlockCopy(uint16array, 0, send_buffer, 20+byteCount, 2);
byteCount = byteCount + 2;
break;
case DataTypes.dwordtype:
Array.Resize(ref send_buffer, send_buffer.Length + 4);
uintarray[0] = Convert.ToUInt32(dataType[i + this.CountNumberOfDatagrams(tagCounter)].SendValue);
Buffer.BlockCopy(uintarray, 0, send_buffer, 20 + byteCount, 4);
byteCount = byteCount + 4;
break;
case DataTypes.sinttype:
Array.Resize(ref send_buffer, send_buffer.Length + 1);
sbytearray[0] = Convert.ToSByte(dataType[i + this.CountNumberOfDatagrams(tagCounter)].SendValue);
Buffer.BlockCopy(sbytearray, 0, send_buffer, 20 + byteCount, 1);
byteCount = byteCount + 1;
break;
case DataTypes.usintType:
Array.Resize(ref send_buffer, send_buffer.Length + 1);
send_buffer[20 + byteCount] = Convert.ToByte(dataType[i + this.CountNumberOfDatagrams(tagCounter)].SendValue);
byteCount++;
break;
case DataTypes.inttype:
Array.Resize(ref send_buffer, send_buffer.Length + 2);
int16array[0] = Convert.ToInt16(dataType[i + this.CountNumberOfDatagrams(tagCounter)].SendValue);
Buffer.BlockCopy(int16array, 0, send_buffer, 20 + byteCount, 2);
byteCount = byteCount + 2;
break;
case DataTypes.uinttype:
Array.Resize(ref send_buffer, send_buffer.Length + 2);
uint16array[0] = Convert.ToUInt16(dataType[i + this.CountNumberOfDatagrams(tagCounter)].SendValue);
Buffer.BlockCopy(uint16array, 0, send_buffer, 20 + byteCount, 2);
byteCount = byteCount + 2;
break;
case DataTypes.dinttype:
Array.Resize(ref send_buffer, send_buffer.Length + 4);
intarray[0] = Convert.ToInt32(dataType[i + this.CountNumberOfDatagrams(tagCounter)].SendValue);
Buffer.BlockCopy(intarray, 0, send_buffer, 20 + byteCount, 4);
byteCount = byteCount + 4;
break;
case DataTypes.udinttype:
Array.Resize(ref send_buffer, send_buffer.Length + 4);
uintarray[0] = Convert.ToUInt32(dataType[i + this.CountNumberOfDatagrams(tagCounter)].SendValue);
Buffer.BlockCopy(uintarray, 0, send_buffer, 20 + byteCount, 4);
byteCount = byteCount + 4;
break;
case DataTypes.realtype:
Array.Resize(ref send_buffer, send_buffer.Length + 4);
floatarray[0] = (float)Convert.ToDouble(dataType[i + this.CountNumberOfDatagrams(tagCounter)].SendValue);
Buffer.BlockCopy(floatarray, 0, send_buffer, 20 + byteCount, 4);
byteCount = byteCount + 4;
break;
case DataTypes.lrealtype:
Array.Resize(ref send_buffer, send_buffer.Length + 8);
doublearray[0] = Convert.ToDouble(dataType[i + this.CountNumberOfDatagrams(tagCounter)].SendValue);
Buffer.BlockCopy(doublearray, 0, send_buffer, 20 + byteCount, 8);
byteCount = byteCount + 8;
break;
case DataTypes.stringtype:
char[] charArray = new char[dataType[i + this.CountNumberOfDatagrams(tagCounter)].FieldLength + 1];
byte[] byteArray = new byte[dataType[i + this.CountNumberOfDatagrams(tagCounter)].FieldLength + 1];
charArray = Convert.ToString(dataType[i + this.CountNumberOfDatagrams(tagCounter)].SendValue).ToCharArray();
int oldLength = charArray.Length;
if (charArray.Length <= dataType[i + this.CountNumberOfDatagrams(tagCounter)].FieldLength)
Array.Resize(ref charArray, (dataType[i + this.CountNumberOfDatagrams(tagCounter)].FieldLength + 1));
charArray[oldLength] = (char)0x0;
Array.Resize(ref send_buffer, send_buffer.Length + charArray.Length);
for (int j = 0; j < charArray.Length; j++)
{
byteArray[j] = (byte)charArray[j];
}
Buffer.BlockCopy(byteArray, 0, send_buffer, 20 + byteCount, (byteArray.Length));
byteCount = byteCount + charArray.Length;
break;
default:
break;
}
}
cTelegramSend.Length = (ushort)send_buffer.Length;
uint16array[0] = cTelegramSend.Length;
Buffer.BlockCopy(uint16array, 0, send_buffer, 14, 2);
#endregion
s.SendTo(send_buffer, endPoint);
datagramCounter++;
}
}
public void CreateGVLFile(string fileName)
{
XmlDocument xmlDocument = new XmlDocument();
XmlNode xmlRoot, xmlNode, xmlNode2;
XmlAttribute xmlAttribute;
xmlRoot = xmlDocument.CreateElement("GVL");
xmlDocument.AppendChild(xmlRoot);
xmlNode = xmlDocument.CreateElement("Declarations");
#region CreateCDataSection
string cDataSection = "VAR_GLOBAL";
for (int i = 0; i < dataType.Count; i++)
{
if (dataType[i].VariableName != null)
cDataSection = cDataSection + '\u000A' + '\u0009' + dataType[i].VariableName;
else
cDataSection = cDataSection + '\u000A' + '\u0009' + "variable" + i.ToString();
switch (dataType[i].DataTypes)
{
case DataTypes.booltype:
cDataSection = cDataSection + ": BOOL;";
break;
case DataTypes.bytetype:
cDataSection = cDataSection + ": BYTE;";
break;
case DataTypes.wordtype:
cDataSection = cDataSection + ": WORD;";
break;
case DataTypes.dwordtype:
cDataSection = cDataSection + ": DWORD;";
break;
case DataTypes.sinttype:
cDataSection = cDataSection + ": SINT;";
break;
case DataTypes.usintType:
cDataSection = cDataSection + ": USINT;";
break;
case DataTypes.inttype:
cDataSection = cDataSection + ": INT;";
break;
case DataTypes.uinttype:
cDataSection = cDataSection + ": UINT;";
break;
case DataTypes.dinttype:
cDataSection = cDataSection + ": DINT;";
break;
case DataTypes.udinttype:
cDataSection = cDataSection + ": UDINT;";
break;
case DataTypes.realtype:
cDataSection = cDataSection + ": REAL;";
break;
case DataTypes.lrealtype:
cDataSection = cDataSection + ": LREAL;";
break;
case DataTypes.stringtype:
cDataSection = cDataSection + ": STRING("+dataType[i].FieldLength+");";
break;
}
}
cDataSection = cDataSection + '\u000A' + "END_VAR";
#endregion
xmlNode2 = xmlDocument.CreateCDataSection(cDataSection);
xmlNode.AppendChild(xmlNode2);
xmlRoot.AppendChild(xmlNode);
xmlNode = xmlDocument.CreateElement("NetvarSettings");
xmlAttribute = xmlDocument.CreateAttribute("Protocol");
xmlAttribute.Value = "UDP";
xmlNode.Attributes.Append(xmlAttribute);
xmlNode2 = xmlDocument.CreateElement("ListIdentifier");
xmlNode2.InnerText = cobID.ToString();
xmlNode.AppendChild(xmlNode2);
xmlNode2 = xmlDocument.CreateElement("Pack");
xmlNode2.InnerText = "TRUE";
xmlNode.AppendChild(xmlNode2);
xmlNode2 = xmlDocument.CreateElement("Checksum");
xmlNode2.InnerText = "FALSE";
xmlNode.AppendChild(xmlNode2);
xmlNode2 = xmlDocument.CreateElement("Acknowledge");
xmlNode2.InnerText = "FALSE";
xmlNode.AppendChild(xmlNode2);
xmlNode2 = xmlDocument.CreateElement("CyclicTransmission");
xmlNode2.InnerText = "TRUE";
xmlNode.AppendChild(xmlNode2);
xmlNode2 = xmlDocument.CreateElement("TransmissionOnChange");
xmlNode2.InnerText = "FALSE";
xmlNode.AppendChild(xmlNode2);
xmlNode2 = xmlDocument.CreateElement("TransmissionOnEvent");
xmlNode2.InnerText = "FALSE";
xmlNode.AppendChild(xmlNode2);
xmlNode2 = xmlDocument.CreateElement("Interval");
xmlNode2.InnerText = "T#50ms";
xmlNode.AppendChild(xmlNode2);
xmlNode2 = xmlDocument.CreateElement("MinGap");
xmlNode2.InnerText = "T#20ms";
xmlNode.AppendChild(xmlNode2);
xmlRoot.AppendChild(xmlNode);
xmlDocument.Save(fileName);
}
public static DataTypes ConvertIntToDataTypes(int dataTypes)
{
switch (dataTypes)
{
case 1: return DataTypes.booltype;
case 2: return DataTypes.bytetype;
case 3: return DataTypes.wordtype;
case 4: return DataTypes.dwordtype;
case 5: return DataTypes.sinttype;
case 6: return DataTypes.usintType;
case 7: return DataTypes.inttype;
case 8: return DataTypes.uinttype;
case 9: return DataTypes.dinttype;
case 10:return DataTypes.udinttype;
case 11:return DataTypes.realtype;
case 12:return DataTypes.lrealtype;
case 13: return DataTypes.stringtype;
default: return DataTypes.booltype;
}
}
/// <summary>
/// Network identifier of CoDeSys Network Variablelist
/// </summary>
public int CobID
{
get
{
return cobID;
}
set
{
cobID = value;
}
}
/// <summary>
/// Port for Dataexchange
/// </summary>
public int Port
{
get
{
return port;
}
set
{
port = value;
}
}
/// <summary>
/// IP-Adress for Send-Operation
/// </summary>
public string IPAdress
{
get
{
return ipAddress;
}
set
{
ipAddress = value;
}
}
/// <summary>
/// Listed Datatypes which corresponds to the Network variableList
/// </summary>
public List<CDataTypeCollection> dataTypeCollection
{
get
{
return dataType;
}
set
{
dataType = value;
numberOfTags = dataTypeCollection.Count;
}
}
/// <summary>
/// Telegram information
/// </summary>
public CTelegram CTelegramReceive
{
get
{
return cTelegramReceive;
}
}
/// <summary>
/// number of tags in ArrayList
/// </summary>
public int NumberOfTags
{
get
{
return numberOfTags;
}
set
{
numberOfTags = value;
}
}
}
public enum DataTypes:int
{
booltype = 1,
bytetype = 2,
wordtype = 3,
dwordtype = 4,
sinttype = 5,
usintType = 6,
inttype = 7,
uinttype = 8,
dinttype = 9,
udinttype = 10,
realtype = 11,
lrealtype = 12,
stringtype = 13
}
/// <summary>
/// Datatype information consisting of Datatype and fieldlength (only necessary for Strings)
/// </summary>
public class CDataTypeCollection
{
private DataTypes dataTypes;
private int fieldLength = 80;
private object sendValue;
private string variableName;
public CDataTypeCollection()
{
}
/// <summary>
/// Constructor - defines the datatype
/// </summary>
/// <param name="dataTypes">Datatype information e.g. DataTypes.inttype</param>
public CDataTypeCollection(DataTypes dataTypes)
{
this.dataTypes = dataTypes;
}
/// <summary>
/// Constructor - defines the datatype and the field length (needed for Strings)
/// </summary>
/// <param name="dataTypes">Datatype information e.g. DataTypes.inttype</param>
/// <param name="fieldLength">Length of a String</param>
public CDataTypeCollection(DataTypes dataTypes, int fieldLength)
{
this.dataTypes = dataTypes;
this.fieldLength = fieldLength;
}
/// <summary>
/// Constructor - defines the datatype and the field length (needed for Strings) and value
/// </summary>
/// <param name="dataTypes">Datatype information e.g. DataTypes.inttype</param>
/// <param name="fieldLength">Length of a String</param>
/// <param name="value">Value to send</param>
public CDataTypeCollection(object value, DataTypes dataTypes, int fieldLength)
{
this.dataTypes = dataTypes;
this.fieldLength = fieldLength;
this.sendValue = value;
}
/// <summary>
/// Constructor - defines the datatype and value (for send)
/// </summary>
/// <param name="dataTypes">Datatype information e.g. DataTypes.inttype</param>
/// <param name="value">Value to send</param>
public CDataTypeCollection(object value, DataTypes dataTypes)
{
this.dataTypes = dataTypes;
this.sendValue = value;
}
public DataTypes DataTypes
{
get
{
return dataTypes;
}
set
{
dataTypes = value;
}
}
public int FieldLength
{
get
{
return fieldLength;
}
set
{
fieldLength = value;
}
}
public object SendValue
{
get
{
return sendValue;
}
set
{
sendValue = value;
}
}
public string VariableName
{
get
{
return variableName;
}
set
{
variableName = value;
}
}
}
public class CTelegram
{
/// <summary>
/// CoDeSys protocol identity code "3S-0" (Byte0="0"; Byte1="-"; Byte2="S"; Byte3="3")
/// </summary>
public byte[] Identity= new byte[4] {0, 45, 83, 51};
/// <summary>
/// ID for Network Variables "0"
/// </summary>
public UInt32 ID = 0;
/// <summary>
/// Cob-ID
/// </summary>
public UInt16 Index = 1;
/// <summary>
/// If "Pack-Variables" is disabled - Message ID
/// </summary>
public UInt16 SubIndex;
/// <summary>
/// Number of Variables
/// </summary>
public UInt16 Items;
/// <summary>
/// Total Size of the Message incl. Header
/// </summary>
public UInt16 Length;
/// <summary>
/// Counts the number of sent telegrams
/// </summary>
public UInt16 Counter;
/// <summary>
/// Bit0: Send-acknowledgement desired; Bit1: Check of checksum desired; Bit2: Invalid checksum
/// </summary>
public byte Flags;
/// <summary>
/// Checksum of the datagram
/// </summary>
public byte Checksum;
/// <summary>
/// Data
/// </summary>
public byte[] Data;
}
}