C#上位机与欧姆龙PLC通讯
先介绍下一些基本定义：
串行通信：通过的是PLC上的串行口RS232/RS422/485口，上位机链接系统 Hostlink系统是对于FA系统一种及优化有经济的通信方式。适用于一台上位机与一台或者多台的PLC进行数据通信。
通讯协议分两种
1:C-mode commands
只可以通过串口进行通讯
2:Fins commands
既可以通过串口通讯也可以通过各类网络通讯(适应性较强)
本文只介绍fins通讯
fins (factory in terfave network service) 通讯协议是欧姆龙公司开发的一款自动化控制网络指令/响应系统的通讯协议；运用FINS指令可实现各种网络间的无缝通信
FINS帧结构
发送命令结构 命令码2个字节
响应命令结构 命令码2个字节
命令码 01 01读数据
命令码 01 02写数据
结束码 00 00无错误
1、获取PLC节点地址
上位机和PLC建立TCP通讯之后，可以发送以下命令来获得PLC的节点地址;
帧结构见下表:
2、命令码介绍
详细内容说明介绍见下表:
3、I / O存储器地址标识
鉴于我们在和PLC通讯时，一般只需要进行读取DM区寄存器操作，因为本文只介绍读取和写入DM区寄存器。其他的有需要的童鞋进行自己功能拓展。
举例：
1、读取DM区地址100，连续10个地址的数据
发送命令：01018400000A
返回命令：010100000102030405060708090A
发送的命令进行说明：
1、01 01代表功能码，读连续I/O存储区字的内容
2、82代表进行字操作
3、00 64转成十进制就是100代表的是我们要读取的起始地址
4、00000A转成十进制就是10代表的是我们要读取得长度
响应的命令说明
1、01 01代表功能码，读连续I/O存储区字的内容
2、00 00代表结束码，当不是00 00的时候表明数据帧不对
3、01 02 03 04 05 06 07 08 09 0A分别代表要读取的十个寄存器的数据值
具体协议可以查看百度文库:欧姆龙fins通讯协议
综上，结合之前的博客，C#Socket客户端：C#Socket客户端我们可以整合得到一个欧姆龙fins的类，如下所示：
using System;using System.Collections.Generic;using System.Text;using ;using .Sockets;using System.Threading;namespace OmrEntFINS{public class OmronFINS{/// <summary>/// 客户端连接Socket/// </summary>private Socket clientSocket;/// <summary>/// 连接状态/// </summary>public Boolean connected = false;/// <summary>/// 发送数据/// </summary>private Byte[] SendMess;/// <summary>/// 连接点/// </summary>private IPEndPoint hostEndPoint;/// <summary>/// 连接信号量/// </summary>private static AutoResetEvent autoConnectEvent = new AutoResetEvent(false);/// <summary>/// 接受到数据时的委托/// </summary>/// <param name="info"></param>public delegate void ReceiveMsgHandler(Byte[] info);/// <summary>/// 接收到数据时调用的事件/// </summary>public event ReceiveMsgHandler OnMsgReceived;/// <summary>/// 开始监听数据的委托/// </summary>public delegate void StartListenHandler();/// <summary>/// 开始监听数据的事件/// </summary>public event StartListenHandler StartListenThread;/// <summary>/// 发送信息完成的委托/// </summary>/// <param name="successorfalse"></param>public delegate void SendCompleted(bool successorfalse);/// <summary>/// 发送信息完成的事件/// </summary>public event SendCompleted OnSended;/// <summary>/// 监听接收的SocketAsyncEventArgs/// </summary>private SocketAsyncEventArgs listenerSocketAsyncEventArgs;int Plcport;public OmronFINS(String hostName, Int32 port, Int32 PLCStaion){Plcport = PLCStaion;IPAddress[] addressList = Dns.GetHostAddresses(hostName);this.hostEndPoint = new IPEndPoint(addressList[addressList.Length - 1], port);this.clientSocket = new Socket(this.hostEndPoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp);}/// <summary>/// 连接服务端/// </summary>private bool Connect(){using (SocketAsyncEventArgs connectArgs = new SocketAsyncEventArgs()){connectArgs.UserToken = this.clientSocket;connectArgs.RemoteEndPoint = this.hostEndPoint;pleted += new EventHandler<SocketAsyncEventArgs>(OnConnect);clientSocket.ConnectAsync(connectArgs);//等待连接结果bool autores = autoConnectEvent.WaitOne(1000);if (this.connected){listenerSocketAsyncEventArgs = new SocketAsyncEventArgs();byte[] receiveBuffer = new byte[1024];//设置接收buffer区大小listenerSocketAsyncEventArgs.UserToken = clientSocket;listenerSocketAsyncEventArgs.SetBuffer(receiveBuffer, 0, receiveBuffer.Length);pleted += new EventHandler<SocketAsyncEventArgs>(OnReceive);StartListenThread();// SocketExtensions.SetKeepAlive(clientSocket, 3000, 1000);return true;}elsereturn false;}}/// <summary>/// 开始监听线程的入口函数/// </summary>private void Listen(){(listenerSocketAsyncEventArgs.UserToken as Socket).ReceiveAsync(listenerSocketAsyncEventArgs);}public static List<SocketAsyncEventArgs> s_lst = new List<SocketAsyncEventArgs>();/// <summary>/// 发送信息/// </summary>/// <param name="message"></param>private void Send(Byte[] message){if (this.connected){Byte[] sendBuffer = message;SocketAsyncEventArgs senderSocketAsyncEventArgs = null;// new SocketAsyncEventArgs();lock (s_lst){if (s_lst.Count > 0){senderSocketAsyncEventArgs = s_lst[s_lst.Count - 1];s_lst.RemoveAt(s_lst.Count - 1);}}if (senderSocketAsyncEventArgs == null){senderSocketAsyncEventArgs = new SocketAsyncEventArgs();senderSocketAsyncEventArgs.UserToken = this.clientSocket;senderSocketAsyncEventArgs.RemoteEndPoint = this.hostEndPoint;pleted += (object sender, SocketAsyncEventArgs _e) =>{lock (s_lst){s_lst.Add(senderSocketAsyncEventArgs);}};}senderSocketAsyncEventArgs.SetBuffer(sendBuffer, 0, sendBuffer.Length);clientSocket.SendAsync(senderSocketAsyncEventArgs);}else{this.connected = false;}SendMess = message;}/// <summary>/// 断开连接/// </summary>private bool Disconnect(){bool returnDis = true;try{this.clientSocket.Shutdown(SocketShutdown.Both);this.clientSocket.Close();//this.clientSocket.Dispose();//clientSocket.Disconnect(true);//clientSocket.Disconnect(false);}catch (Exception){returnDis = false;}finally{}this.connected = false;return returnDis;}/// <summary>/// 连接的完成方法/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void OnConnect(object sender, SocketAsyncEventArgs e){this.connected = (e.SocketError == SocketError.Success);autoConnectEvent.Set();}/// <summary>/// 接收的完成方法/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void OnReceive(object sender, SocketAsyncEventArgs e){if (e.BytesTransferred == 0){//Console.WriteLine("Socket is closed", Socket.Handle);if (clientSocket.Connected){try{clientSocket.Shutdown(SocketShutdown.Both);}catch (Exception){//client already closed}finally{if (clientSocket.Connected){clientSocket.Close();}}}Byte[] rs = new Byte[0];OnMsgReceived(rs);this.connected = false;}else{byte[] buffer = new byte[e.BytesTransferred];for (int i = 0; i < e.BytesTransferred; i++){buffer[i] = e.Buffer[i];}this.OnMsgReceived(buffer);Listen();}}/// <summary>/// 发送的完成方法/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void OnSend(object sender, SocketAsyncEventArgs e){if (e.SocketError == SocketError.Success){OnSended(true);}else{OnSended(false);this.ProcessError(e);}}/// <summary>/// 处理错误/// </summary>/// <param name="e"></param>private void ProcessError(SocketAsyncEventArgs e){Socket s = e.UserToken as Socket;if (s.Connected){try{s.Shutdown(SocketShutdown.Both);}catch (Exception){//client already closed}finally{if (s.Connected){s.Close();}}this.connected = false;}//throw new SocketException((Int32)e.SocketError);}#region IDisposable Memberspublic void Dispose(){autoConnectEvent.Close();if (this.clientSocket.Connected){this.clientSocket.Close();}}#endregion#region 欧姆龙通讯协议/// <summary>/// 发送命令反馈/// </summary>/// <param name="successorfalse"></param>void OmronFINS_OnSended(bool successorfalse){if (!successorfalse){}else{}}Byte PCS;Byte PLCS;int SendOrRev;int SendOrRev2;Byte[] SendBack;Byte[] RecvBack;/// <summary>/// 接受命令反馈/// </summary>/// <param name="info"></param>void OmronFINS_OnMsgReceived(byte[] info){if (SendmessHas){if (info.Length >= 24){if (int.Parse(info[23].ToString("X").Trim(), System.Globalization.NumberStyles.HexNumber) == Plcport){PCS = info[19];PLCS = info[23];SendmessHas = false;}}}else{if (info.Length > 0)//PLC连接错误NO{if (SendOrRev2 == 1)//发送命令{SendBack = info;SendOrRev2 = 0;}else if (SendOrRev == 2)//接受命令{RecvBack = info;SendOrRev = 0;}}else{if (SendOrRev2 == 1)//发送命令{SendBack = new Byte[1];SendBack[0] = 0x00;SendOrRev2 = 0;}else if (SendOrRev == 2)//接受命令{RecvBack = new Byte[1];RecvBack[0] = 0x00;SendOrRev = 0;}}}}void OmronFINS_StartListenThread(){this.Listen();}bool SendmessHas = false;/// <summary>/// 打开连接/// </summary>/// <returns></returns>public bool OpenLinkPLC(){bool Ret = false;this.StartListenThread += new StartListenHandler(OmronFINS_StartListenThread);this.OnMsgReceived += new ReceiveMsgHandler(OmronFINS_OnMsgReceived);this.OnSended += new SendCompleted(OmronFINS_OnSended);Ret = this.Connect();if (Ret){SendmessHas = true;this.Send(GetPCAdress());int addNs = 0;while (SendmessHas && addNs < 500){Thread.Sleep(2);addNs++;}if (addNs < 500){Ret = true;}else{Ret = false;}}return Ret;}/// <summary>/// 关闭连接/// </summary>/// <returns></returns>public bool CloseLinkPLC(){return this.Disconnect();}/// <summary>/// 写入值(Word)/// </summary>/// <param name="TypeInt">起始寄存器地址</param>/// <param name="NumData">个数</param>/// <param name="IntValue">值</param>/// <returns>true,成功;false,失败</returns>public bool WritePlcData(string TypeInt, int NumData, ref int[] IntValue){bool sendRerun = false;if (NumData > 0){Byte[] numData = BitConverter.GetBytes(NumData);//Use numData[0] and numData[1]Byte[] SendmessAge = new Byte[34 + NumData * 2];if (GetType(TypeInt, 0) != 0x00 && Address != null && Address.Length > 1){Byte[] getSendFunc = this.SetPLCvalue(PLCS, PCS, GetType(TypeInt, 0), Address[1], Address[0], 0x00, numData[1], numData[0], NumData);for (int i = 0; i < 34 + NumData * 2; i++){if (i < 34){SendmessAge[i] = getSendFunc[i];}else{if ((i - 33) % 2 != 0){Byte[] BuffInvalue = BitConverter.GetBytes(IntValue[(i - 33) / 2]);SendmessAge[i] = BuffInvalue[1];}else{Byte[] BuffInvalue = BitConverter.GetBytes(IntValue[(i - 33) / 2 - 1]);SendmessAge[i] = BuffInvalue[0];}//SendmessAge[i]}}SendOrRev2 = 1;this.Send(SendmessAge);int Outtime = 0;while (SendOrRev2 != 0 && this.connected && Outtime < 600){Thread.Sleep(2);Outtime++;}if (Outtime < 600 && SendBack != null){try{//if (SendBack.Length > 1 && SendBack[26] == 0x01 && SendBack[27] == 0x02 && SendBack[28] == 0x00 && SendBack[29] == 0x00)//{if (SendBack.Length > 1 && SendBack[26] == 0x01 && SendBack[27] == 0x02 && SendBack[28] == 0x00){sendRerun = true;}else{sendRerun = false;}}catch (Exception){}}else{SendOrRev2 = 0;}}}return sendRerun;}/// <summary>/// 读取值(Word)/// </summary>/// <param name="TypeInt">起始寄存器地址</param>/// <param name="NumData">个数</param>/// <param name="IntValue">值</param>/// <returns></returns>public bool ReadPlcData(string TypeInt, int NumData, out int[] IntValue){bool GetPlcRet = false;IntValue = new int[1];if (NumData > 0){IntValue = new int[NumData];Byte[] numData = BitConverter.GetBytes(NumData);//Use numData[0] and numData[1]Byte[] RecivemessAge = new Byte[34];if (GetType(TypeInt, 0) != 0x00 && Address != null && Address.Length > 1){Byte[] getReciveFunc = this.GetPLCvalue(PLCS, PCS, GetType(TypeInt, 0), Address[1], Address[0], 0x00, numData[1], numData[0]);this.Send(getReciveFunc);SendOrRev = 2;int Outtime = 0;while (SendOrRev != 0 && this.connected && Outtime < 600){Thread.Sleep(2);Outtime++;}if (Outtime < 600 && RecvBack != null){try{//if (RecvBack.Length > 1 && RecvBack[26] == 0x01 && RecvBack[27] == 0x01 && RecvBack[28] == 0x00 && RecvBack[29] == 0x00)if (RecvBack.Length == 30 + NumData * 2 && RecvBack[26] == 0x01 && RecvBack[27] == 0x01 && RecvBack[28] == 0x00){GetPlcRet = true;for (int i = 0; i < NumData; i++){IntValue[i] = int.Parse(RecvBack[30 + i * 2].ToString("X").PadLeft(2, '0') + RecvBack[30 + i * 2 + 1].ToString("X").PadLeft(2, '0'), System.Globalization.NumberStyles.HexNumber);}}else{GetPlcRet = false;}}catch (Exception){}}else{SendOrRev = 0;}}}return GetPlcRet;}/// <summary>/// 读取值(Word)/// </summary>/// <param name="TypeInt">起始寄存器地址</param>/// <param name="NumData">个数</param>/// <param name="IntValue">值</param>/// <returns></returns>public bool ReadPlcDataCIO(string TypeInt, int NumData, out int[] IntValue){bool GetPlcRet = false;IntValue = new int[1];if (NumData > 0){IntValue = new int[NumData];Byte[] numData = BitConverter.GetBytes(NumData);//Use numData[0] and numData[1]Byte[] RecivemessAge = new Byte[34];if (GetType(TypeInt, 0) != 0x00 && Address != null && Address.Length > 1){Byte[] getReciveFunc = this.GetPLCvalue(PLCS, PCS, GetType(TypeInt, 0), Address[1], Address[0], 0x00, numData[1], numData[0]);this.Send(getReciveFunc);SendOrRev = 2;int Outtime = 0;while (SendOrRev != 0 & this.connected & Outtime < 800){Thread.Sleep(2);Outtime++;}if (Outtime < 800 && RecvBack != null){//try//{//if (RecvBack.Length > 1 && RecvBack[26] == 0x01 && RecvBack[27] == 0x01 && RecvBack[28] == 0x00 && RecvBack[29] == 0x00)if (RecvBack.Length > 30 && RecvBack[26] == 0x01 && RecvBack[27] == 0x01 && RecvBack[28] == 0x00){GetPlcRet = true;for (int i = 0; i < NumData; i++){IntValue[i] = int.Parse(RecvBack[30 + i * 2].ToString("X").PadLeft(2, '0') + RecvBack[30 + i * 2 + 1].ToString("X").PadLeft(2, '0'), System.Globalization.NumberStyles.HexNumber);}}else{GetPlcRet = false;}//}//catch (Exception)//{//}}else{SendOrRev = 0;}}}return GetPlcRet;}/// <summary>/// 读取值(Bit)/// </summary>/// <param name="TypeInt">起始寄存器地址</param>/// <param name="IntValue">值</param>/// <returns></returns>public bool ReadPlcBitData(string TypeInt, out int IntValue){bool GetPlcRet = false;IntValue = 0;Byte[] RecivemessAge = new Byte[34];if (GetType(TypeInt, 1) != 0x00 && Address != null && Address.Length > 1){Byte[] getReciveFunc = this.GetPLCvalue(PLCS, PCS, GetType(TypeInt, 1), Address[1], Address[0], AddressBit[0]);this.Send(getReciveFunc);SendOrRev = 2;int Outtime = 0;while (SendOrRev != 0 & Outtime < 600){Thread.Sleep(2);Outtime++;}if (Outtime < 600){if (RecvBack.Length > 1 && RecvBack[26] == 0x01 && RecvBack[27] == 0x01 && RecvBack[28] == 0x00 && RecvBack[29] == 0x00){GetPlcRet = true;IntValue = int.Parse(RecvBack[30].ToString("X").PadLeft(2, '0'), System.Globalization.NumberStyles.HexNumber);}}else{SendOrRev = 0;}}return GetPlcRet;}/// <summary>/// Write值(bit)/// </summary>/// <param name="TypeInt">寄存器地址(CIOX.X)</param>/// <returns></returns>public bool WriteBitPlcData(string TypeInt, int ItemValue){bool sendRerun = false;Byte[] SendmessAge = new Byte[35];if (GetType(TypeInt, 1) != 0x00 && Address != null && Address.Length > 1){Byte[] getSendFunc = this.WritePLCBitvalue(PLCS, PCS, GetType(TypeInt, 1), Address[1], Address[0], AddressBit[0]);for (int i = 0; i < 35; i++){if (i < 32){SendmessAge[i] = getSendFunc[i];}else if (i == 32){SendmessAge[i] = 0x00;}else if (i == 33){SendmessAge[i] = 0x01;}else{if (ItemValue == 1)SendmessAge[i] = 0x01;elseSendmessAge[i] = 0x00;}}this.Send(SendmessAge);SendOrRev2 = 1;int Outtime = 0;while (SendOrRev2 != 0 & Outtime < 600){Thread.Sleep(2);Outtime++;}if (Outtime < 600){if (SendBack.Length > 1 && SendBack[26] == 0x01 && SendBack[27] == 0x02 && SendBack[28] == 0x00 && SendBack[29] == 0x00){sendRerun = true;}}else{SendOrRev2 = 0;}}return sendRerun;}/// <summary>/// Set 值(bit)/// </summary>/// <param name="TypeInt">寄存器地址(CIOX.X)</param>/// <returns></returns>public bool SetPlcData(string TypeInt){bool sendRerun = false;Byte[] SendmessAge = new Byte[35];if (GetType(TypeInt, 1) != 0x00 && Address != null && Address.Length > 1){Byte[] getSendFunc = this.SetPLCBitvalue(PLCS, PCS, GetType(TypeInt, 1), Address[1], Address[0], AddressBit[0]);for (int i = 0; i < 35; i++){if (i < 34){SendmessAge[i] = getSendFunc[i];}else{SendmessAge[i] = 0x00;}}this.Send(SendmessAge);SendOrRev2 = 1;int Outtime = 0;while (SendOrRev2 != 0 & Outtime < 600){Thread.Sleep(2);Outtime++;}if (Outtime < 600){if (SendBack.Length > 1 && SendBack[26] == 0x01 && SendBack[27] == 0x02 && SendBack[28] == 0x00 && SendBack[29] == 0x00){sendRerun = true;}}}return sendRerun;}/// <summary>/// Rest 值(bit)/// </summary>/// <param name="TypeInt">寄存器地址(CIOX.X)</param>/// <returns></returns>public bool RestPlcData(string TypeInt){bool sendRerun = false;Byte[] SendmessAge = new Byte[35];if (GetType(TypeInt, 1) != 0x00 && Address != null && Address.Length > 1){Byte[] getSendFunc = this.RstPLCBitvalue(PLCS, PCS, GetType(TypeInt, 1), Address[1], Address[0], AddressBit[0]);for (int i = 0; i < 35; i++){if (i < 34){SendmessAge[i] = getSendFunc[i];}else{SendmessAge[i] = 0x00;}}this.Send(SendmessAge);SendOrRev2 = 1;int Outtime = 0;while (SendOrRev2 != 0 & Outtime < 600){Thread.Sleep(2);Outtime++;}if (Outtime < 600){if (SendBack.Length > 1 && SendBack[26] == 0x01 && SendBack[27] == 0x02 && SendBack[28] == 0x00 && SendBack[29] == 0x00){sendRerun = true;}}}return sendRerun;}Byte[] Address;Byte[] AddressBit;private Byte GetType(string TypeInt, int SizeofInt){Byte ms = 0x00;if (TypeInt.IndexOf("D") == 0 | TypeInt.IndexOf("d") == 0){if (SizeofInt == 0){ms = 0x82;if (TypeInt.IndexOf(".") == -1)Address = BitConverter.GetBytes(int.Parse(TypeInt.Substring(1, TypeInt.Length - 1)));else{Address = new Byte[1];AddressBit = new Byte[1];}}else{ms = 0x02;if (TypeInt.IndexOf(".") > 1){Address = BitConverter.GetBytes(int.Parse(TypeInt.Substring(1, TypeInt.IndexOf(".") - 1)));AddressBit = BitConverter.GetBytes(int.Parse(TypeInt.Substring(TypeInt.IndexOf(".") + 1, TypeInt.Length - TypeInt.IndexOf(".") - 1)));}else{Address = new Byte[1];AddressBit = new Byte[1];}}}else if (TypeInt.IndexOf("CIO") == 0 | TypeInt.IndexOf("cio") == 0){if (SizeofInt == 0){ms = 0xB0;if (TypeInt.IndexOf(".") == -1)Address = BitConverter.GetBytes(int.Parse(TypeInt.Substring(3, TypeInt.Length - 3)));else{Address = new Byte[1];AddressBit = new Byte[1];}}else{ms = 0x30;if (TypeInt.IndexOf(".") > 3){Address = BitConverter.GetBytes(int.Parse(TypeInt.Substring(3, TypeInt.IndexOf(".") - 3)));AddressBit = BitConverter.GetBytes(int.Parse(TypeInt.Substring(TypeInt.IndexOf(".") + 1, TypeInt.Length - TypeInt.IndexOf(".") - 1)));}else{Address = new Byte[1];AddressBit = new Byte[1];}}}else if (TypeInt.IndexOf("W") == 0 | TypeInt.IndexOf("w") == 0){if (SizeofInt == 0){ms = 0xB1;if (TypeInt.IndexOf(".") == -1)Address = BitConverter.GetBytes(int.Parse(TypeInt.Substring(1, TypeInt.Length - 1)));else{Address = new Byte[1];AddressBit = new Byte[1];}}else{ms = 0x31;if (TypeInt.IndexOf(".") > 1){Address = BitConverter.GetBytes(int.Parse(TypeInt.Substring(1, TypeInt.IndexOf(".") - 1)));AddressBit = BitConverter.GetBytes(int.Parse(TypeInt.Substring(TypeInt.IndexOf(".") + 1, TypeInt.Length - TypeInt.IndexOf(".") - 1)));}else{Address = new Byte[1];AddressBit = new Byte[1];}}}else if (TypeInt.IndexOf("H") == 0 | TypeInt.IndexOf("h") == 0){if (SizeofInt == 0){ms = 0xB2;if (TypeInt.IndexOf(".") == -1)Address = BitConverter.GetBytes(int.Parse(TypeInt.Substring(1, TypeInt.Length - 1)));else{Address = new Byte[1];AddressBit = new Byte[1];}}else{ms = 0x32;if (TypeInt.IndexOf(".") > 1){Address = BitConverter.GetBytes(int.Parse(TypeInt.Substring(1, TypeInt.IndexOf(".") - 1)));AddressBit = BitConverter.GetBytes(int.Parse(TypeInt.Substring(TypeInt.IndexOf(".") + 1, TypeInt.Length - TypeInt.IndexOf(".") - 1)));}else{Address = new Byte[1];AddressBit = new Byte[1];}}}else if (TypeInt.IndexOf("A") == 0 | TypeInt.IndexOf("a") == 0){if (SizeofInt == 0){ms = 0xB3;if (TypeInt.IndexOf(".") == -1)Address = BitConverter.GetBytes(int.Parse(TypeInt.Substring(1, TypeInt.Length - 1)));else{Address = new Byte[1];AddressBit = new Byte[1];}}else{ms = 0x33;if (TypeInt.IndexOf(".") > 1){Address = BitConverter.GetBytes(int.Parse(TypeInt.Substring(1, TypeInt.IndexOf(".") - 1)));AddressBit = BitConverter.GetBytes(int.Parse(TypeInt.Substring(TypeInt.IndexOf(".") + 1, TypeInt.Length - TypeInt.IndexOf(".") - 1)));}else{Address = new Byte[1];AddressBit = new Byte[1];}}}return ms;}/// <summary>/// Get PLC DA1 SNA1/// </summary>/// <returns></returns>private Byte[] GetPCAdress(){Byte[] ReturnGetPC = new Byte[20];ReturnGetPC[0] = 0x46;//fReturnGetPC[1] = 0x49;//iReturnGetPC[2] = 0x4E;//nReturnGetPC[3] = 0x53;//sReturnGetPC[4] = 0x00;ReturnGetPC[5] = 0x00;ReturnGetPC[6] = 0x00;ReturnGetPC[7] = 0x0C;ReturnGetPC[8] = 0x00;ReturnGetPC[9] = 0x00;ReturnGetPC[10] = 0x00;ReturnGetPC[11] = 0x00;ReturnGetPC[12] = 0x00;ReturnGetPC[13] = 0x00;ReturnGetPC[14] = 0x00;ReturnGetPC[15] = 0x00;ReturnGetPC[16] = 0x00;ReturnGetPC[17] = 0x00;ReturnGetPC[18] = 0x00;ReturnGetPC[19] = 0x00;return ReturnGetPC;}/// <summary>/// Read Word/// </summary>/// <param name="DA1"></param>/// <param name="SA1"></param>/// <param name="DataValue"></param>/// <param name="Address1"></param>/// <param name="Address2"></param>/// <param name="Address3"></param>/// <param name="DataNum1"></param>/// <param name="DataNum2"></param>/// <returns></returns>private Byte[] GetPLCvalue(Byte DA1, Byte SA1, Byte DataValue, Byte Address1, Byte Address2, Byte Address3, Byte DataNum1, Byte DataNum2){Byte[] SendFun = new Byte[34];SendFun[0] = 0x46;SendFun[1] = 0x49;SendFun[2] = 0x4E;SendFun[3] = 0x53;SendFun[4] = 0x00;SendFun[5] = 0x00;SendFun[6] = 0x00;SendFun[7] = 0x1A;SendFun[8] = 0x00;SendFun[9] = 0x00;SendFun[10] = 0x00;SendFun[11] = 0x02;SendFun[12] = 0x00;SendFun[13] = 0x00;SendFun[14] = 0x00;SendFun[15] = 0x00;SendFun[16] = 0x80;SendFun[17] = 0x00;SendFun[18] = 0x02;SendFun[19] = 0x00;SendFun[20] = DA1;SendFun[21] = 0x00;SendFun[22] = 0x00;SendFun[23] = SA1;SendFun[24] = 0x00;SendFun[25] = 0x01;SendFun[26] = 0x01;SendFun[27] = 0x01;SendFun[28] = DataValue;SendFun[29] = Address1;SendFun[30] = Address2;SendFun[31] = Address3;SendFun[32] = DataNum1;SendFun[33] = DataNum2;return SendFun;}/// <summary>/// Write Word/// </summary>/// <param name="DA1"></param>/// <param name="SA1"></param>/// <param name="DataValue"></param>/// <param name="Address1"></param>/// <param name="Address2"></param>/// <param name="Address3"></param>/// <param name="DataNum1"></param>/// <param name="DataNum2"></param>/// <returns></returns>private Byte[] SetPLCvalue(Byte DA1, Byte SA1, Byte DataValue, Byte Address1, Byte Address2, Byte Address3, Byte DataNum1, Byte DataNum2, int num){Byte[] SendFun = new Byte[34];SendFun[0] = 0x46;SendFun[1] = 0x49;SendFun[2] = 0x4E;SendFun[3] = 0x53;SendFun[4] = 0x00;SendFun[5] = 0x00;SendFun[6] = 0x00;SendFun[7] = (byte)(26 + 2 * num);SendFun[8] = 0x00;SendFun[9] = 0x00;SendFun[10] = 0x00;SendFun[11] = 0x02;SendFun[12] = 0x00;SendFun[13] = 0x00;SendFun[14] = 0x00;SendFun[15] = 0x00;SendFun[16] = 0x80;SendFun[17] = 0x00;SendFun[18] = 0x02;SendFun[19] = 0x00;SendFun[20] = DA1;SendFun[21] = 0x00;SendFun[22] = 0x00;SendFun[23] = SA1;SendFun[24] = 0x00;SendFun[25] = 0x01;SendFun[26] = 0x01;SendFun[27] = 0x02;SendFun[28] = DataValue;SendFun[29] = Address1;SendFun[30] = Address2;SendFun[31] = Address3;SendFun[32] = DataNum1;SendFun[33] = DataNum2;return SendFun;}/// <summary>/// Read Bit/// /// </summary>/// <param name="DA1"></param>/// <param name="SA1"></param>/// <param name="DataValue"></param>/// <param name="Address1"></param>/// <param name="Address2"></param>/// <param name="Address3"></param>/// <param name="DataNum1"></param>/// <param name="DataNum2"></param>/// <returns></returns>private Byte[] GetPLCvalue(Byte DA1, Byte SA1, Byte DataValue, Byte Address1, Byte Address2, Byte Address3){Byte[] SendFun = new Byte[34];SendFun[0] = 0x46;SendFun[1] = 0x49;SendFun[2] = 0x4E;SendFun[3] = 0x53;SendFun[4] = 0x00;SendFun[5] = 0x00;SendFun[6] = 0x00;SendFun[7] = 0x1A;SendFun[8] = 0x00;SendFun[9] = 0x00;SendFun[10] = 0x00;SendFun[11] = 0x02;SendFun[12] = 0x00;SendFun[13] = 0x00;SendFun[14] = 0x00;SendFun[15] = 0x00;SendFun[16] = 0x80;SendFun[17] = 0x00;SendFun[18] = 0x02;SendFun[19] = 0x00;SendFun[20] = DA1;SendFun[21] = 0x00;SendFun[22] = 0x00;SendFun[23] = SA1;SendFun[24] = 0x00;SendFun[25] = 0x01;SendFun[26] = 0x01;SendFun[27] = 0x01;SendFun[28] = DataValue;SendFun[29] = Address1;SendFun[30] = Address2;SendFun[31] = Address3;SendFun[32] = 0x00;SendFun[33] = 0x01;return SendFun;}/// <summary>/// Write Bit/// </summary>/// <param name="DA1"></param>/// <param name="SA1"></param>/// <param name="DataValue"></param>/// <param name="Address1"></param>/// <param name="Address2"></param>/// <param name="Address3"></param>/// <returns></returns>private Byte[] WritePLCBitvalue(Byte DA1, Byte SA1, Byte DataValue, Byte Address1, Byte Address2, Byte Address3){Byte[] SendFun = new Byte[32];SendFun[0] = 0x46;SendFun[1] = 0x49;SendFun[2] = 0x4E;SendFun[3] = 0x53;SendFun[4] = 0x00;SendFun[5] = 0x00;SendFun[6] = 0x00;SendFun[7] = 0x1B;SendFun[8] = 0x00;SendFun[9] = 0x00;SendFun[10] = 0x00;SendFun[11] = 0x02;SendFun[12] = 0x00;SendFun[13] = 0x00;SendFun[14] = 0x00;SendFun[15] = 0x00;SendFun[16] = 0x80;SendFun[17] = 0x00;SendFun[18] = 0x02;SendFun[19] = 0x00;SendFun[20] = DA1;SendFun[21] = 0x00;SendFun[22] = 0x00;SendFun[23] = SA1;SendFun[24] = 0x00;SendFun[25] = 0x01;SendFun[26] = 0x01;SendFun[27] = 0x02;SendFun[28] = DataValue;SendFun[29] = Address1;SendFun[30] = Address2;SendFun[31] = Address3;return SendFun;}/// <summary>/// Set Bit/// </summary>/// <param name="DA1"></param>/// <param name="SA1"></param>/// <param name="DataValue"></param>/// <param name="Address1"></param>/// <param name="Address2"></param>/// <param name="Address3"></param>/// <returns></returns>private Byte[] SetPLCBitvalue(Byte DA1, Byte SA1, Byte DataValue, Byte Address1, Byte Address2, Byte Address3){Byte[] SendFun = new Byte[35];SendFun[0] = 0x46;SendFun[1] = 0x49;SendFun[2] = 0x4E;SendFun[3] = 0x53;SendFun[4] = 0x00;SendFun[5] = 0x00;SendFun[6] = 0x00;SendFun[7] = 0x1B;SendFun[8] = 0x00;SendFun[9] = 0x00;SendFun[10] = 0x00;SendFun[11] = 0x02;SendFun[12] = 0x00;SendFun[13] = 0x00;SendFun[14] = 0x00;SendFun[15] = 0x00;SendFun[16] = 0x80;SendFun[17] = 0x00;SendFun[18] = 0x02;SendFun[19] = 0x00;SendFun[20] = DA1;SendFun[21] = 0x00;SendFun[22] = 0x00;SendFun[23] = SA1;SendFun[24] = 0x00;SendFun[25] = 0x01;SendFun[26] = 0x23;SendFun[27] = 0x01;SendFun[28] = 0x01;SendFun[29] = 0x00;SendFun[30] = 0x01;SendFun[31] = DataValue;SendFun[32] = Address1;SendFun[33] = Address2;SendFun[34] = Address3;return SendFun;}/// <summary>/// RST Bit/// </summary>/// <param name="DA1"></param>/// <param name="SA1"></param>/// <param name="DataValue"></param>/// <param name="Address1"></param>/// <param name="Address2"></param>/// <param name="Address3"></param>/// <returns></returns>private Byte[] RstPLCBitvalue(Byte DA1, Byte SA1, Byte DataValue, Byte Address1, Byte Address2, Byte Address3){Byte[] SendFun = new Byte[35];SendFun[0] = 0x46;SendFun[1] = 0x49;SendFun[2] = 0x4E;SendFun[3] = 0x53;SendFun[4] = 0x00;SendFun[5] = 0x00;SendFun[6] = 0x00;SendFun[7] = 0x1B;SendFun[8] = 0x00;SendFun[9] = 0x00;SendFun[10] = 0x00;SendFun[11] = 0x02;SendFun[12] = 0x00;SendFun[13] = 0x00;SendFun[14] = 0x00;SendFun[15] = 0x00;SendFun[16] = 0x80;SendFun[17] = 0x00;SendFun[18] = 0x02;SendFun[19] = 0x00;SendFun[20] = DA1;SendFun[21] = 0x00;SendFun[22] = 0x00;SendFun[23] = SA1;SendFun[24] = 0x00;SendFun[25] = 0x01;SendFun[26] = 0x23;SendFun[27] = 0x01;SendFun[28] = 0x01;SendFun[29] = 0x00;SendFun[30] = 0x00;SendFun[31] = DataValue;SendFun[32] = Address1;SendFun[33] = Address2;SendFun[34] = Address3;return SendFun;}#endregion}}
至此，我们就可以用上述的类和欧姆龙PLC进行FINS通讯。下一篇我会分享和介绍欧姆龙串口的通讯协议。
