HEGII.ft.mes.plc/PCLCommunication/MelsecA1EAsciiSocket.cs

using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Text;
using Curtain.Framework.Utils;

namespace PCLCommunication
{
    public class MelsecA1EAsciiSocket : IDisposable
    {
        private bool _always = false;
        [NonSerialized]
        public Socket _socket = null;
        //[NonSerialized]
        private StringBuilder _command = null;
        //[NonSerialized]
        private string _receive = null;

        public string Command
        {
            get
            {
                return this._command?.ToString();
            }
        }

        public string Receive
        {
            get
            {
                return this._receive;
            }
        }

        /// <summary>
        /// 是：长连接；否：短连接
        /// </summary>
        public bool Always
        {
            get
            {
                return this._always;
            }
            set
            {
                this._always = value;
                if (!this._always)
                {
                    this.CloseSocket();
                }
                else
                {
                    this.ConnectSocket();
                }
            }
        }

        ///// <summary>
        ///// Socket
        ///// </summary>
        //[System.Xml.Serialization.XmlIgnore]
        //[System.Web.Script.Serialization.ScriptIgnore]
        //public Socket Socket
        //{
        //    get
        //    {
        //        return this._socket;
        //    }
        //}

        /// <summary>
        /// 通信超时（3s）
        /// </summary>
        public int Timeout
        {
            get;
            set;
        } = 10000;//3000;

        /// <summary>
        /// 关闭连接
        /// </summary>
        public void CloseSocket()
        {
            try
            {
                _socket?.Close();
            }
            catch (Exception ex)
            {
                // TODO log
                string j = JsonUtil.FromObject(this);
                LogOut.Error(null, ex, j);
                //throw ex;
            }
            finally
            {
                _socket = null;
            }
        }

        /// <summary>
        /// 打开连接
        /// </summary>
        public void ConnectSocket()
        {
            try
            {
                _socket?.Close();
                this._socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                this._socket.Connect(IPAddress.Parse(this.IP), this.Port);
                this._socket.SendTimeout = this.Timeout;
                this._socket.ReceiveTimeout = this.Timeout;
            }
            catch (Exception ex)
            {
                // TODO log
                throw ex;
            }
            finally
            {
                if (!this._always)
                {
                    CloseSocket();
                }
            }
        }

        /// <summary>
        /// PLC IP
        /// </summary>
        public string IP
        {
            get;
            set;
        }

        /// <summary>
        /// PLC Port
        /// </summary>
        public int Port
        {
            get;
            set;
        }

        public MelsecA1EAsciiSocket(string ip, int port)
        {
            this.IP = ip;
            this.Port = port;
        }

        /// <summary>
        /// 读取PLC
        /// </summary>
        /// <param name="type"></param>
        /// <param name="begin"></param>
        /// <param name="length"></param>
        /// <returns></returns>
        public string GetHexData(string type, int begin, int length)
        {
            this._command = null;
            this._receive = null;
            string mm = "\r\ntype:" + type + "\r\nbegin:" + begin + "\r\nlength:" + length;
            try
            {
                if (this._socket == null || !this._always)
                {
                    this.CloseSocket();
                    this._socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                    this._socket.Connect(IPAddress.Parse(this.IP), this.Port);
                    this._socket.SendTimeout = this.Timeout;
                    this._socket.ReceiveTimeout = this.Timeout;
                }

                // 副标题： 01 【命令：字单位读取】
                // PC号： FF 【固定】
                // 监视定时器：00 0C 【3秒（单位250毫秒）】
                this._command = new StringBuilder("01FF000C");
                // 起始软元件编码 D100 => 4420 0000 0064
                // 软元件代码
                if (type.Length == 1)
                {
                    this._command.Append(MelsecA1EAscii.GetHexAscii(type) + "20");
                }
                else
                {
                    this._command.Append(MelsecA1EAscii.GetHexAscii(type));
                }
                // 软元件编码
                this._command.Append(begin.ToString("X8"));
                // 软元件点数
                this._command.Append(length.ToString("X2"));
                // 命令结束
                this._command.Append("00");

                byte[] cmdBytes = Encoding.ASCII.GetBytes(this._command.ToString());

                int cmdResult = this._socket.Send(cmdBytes);

                byte[] receiveBytes = new byte[length * 4 + 4];
                int receiveResult = this._socket.Receive(receiveBytes);
                this._receive = Encoding.ASCII.GetString(receiveBytes, 0, receiveResult);
                if (!this._receive.StartsWith("8100"))
                {
                    // TODO log ip port command receive
                    string j = JsonUtil.FromObject(this) + mm;
                    LogOut.Error(null, null, j);
                    return null;
                }

                //return receive.Substring(4);
                return this._receive;
            }
            catch (Exception ex)
            {
                // TODO log
                string j = JsonUtil.FromObject(this) + mm;
                LogOut.Error(null, ex, j);
                return null;
            }
            finally
            {
                if (!this._always)
                {
                    this.CloseSocket();
                }
            }
        }

        /// <summary>
        /// 读取PLC
        /// </summary>
        /// <param name="type"></param>
        /// <param name="begin"></param>
        /// <param name="length"></param>
        /// <returns></returns>
        public byte[] GetByteData(string type, int begin, int length)
        {
            string mm = "\r\ntype:" + type + "\r\nbegin:" + begin + "\r\nlength:" + length;
            try
            {
                string str = this.GetHexData(type, begin, length);
                if (string.IsNullOrEmpty(str))
                {
                    return null;
                }

                List<byte> list = new List<byte>();
                for (int i = 4; i < str.Length; i = i + 2)
                {
                    list.Add(Convert.ToByte(str.Substring(i, 2), 16));
                }

                return list.ToArray();
            }
            catch (Exception ex)
            {
                // TODO log
                string j = JsonUtil.FromObject(this) + mm;
                LogOut.Error(null, ex, j);
                return null;
            }
            finally
            {
            }
        }

        /// <summary>
        /// 写入PLC
        /// </summary>
        /// <param name="type"></param>
        /// <param name="begin"></param>
        /// <param name="length"></param>
        /// <returns></returns>
        public bool SetData(string type, int begin, int length, string hexData)
        {
            this._command = null;
            this._receive = null;
            string mm = "\r\ntype:" + type + "\r\nbegin:" + begin + "\r\nlength:" + length + "\r\nhexData:" + hexData;
            try
            {
                if (this._socket == null || !this._always)
                {
                    this.CloseSocket();
                    this._socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                    this._socket.Connect(IPAddress.Parse(this.IP), this.Port);
                    this._socket.SendTimeout = this.Timeout;
                    this._socket.ReceiveTimeout = this.Timeout;
                }

                // 副标题： 03 【命令：字单位写入】
                // PC号： FF 【固定】
                // 监视定时器：00 0C 【3秒（单位250毫秒）】
                this._command = new StringBuilder("03FF000C");
                // 起始软元件编码 D100 => 4420 0000 0064
                // 软元件代码
                if (type.Length == 1)
                {
                    this._command.Append(MelsecA1EAscii.GetHexAscii(type) + "20");
                }
                else
                {
                    this._command.Append(MelsecA1EAscii.GetHexAscii(type));
                }
                // 软元件编码
                this._command.Append(begin.ToString("X8"));
                // 软元件点数
                this._command.Append(length.ToString("X2"));
                // 命令结束
                this._command.Append("00");

                // 写入补齐
                int count = length * 4;
                if (hexData.Length < count)
                {
                    hexData = hexData.PadRight(count, '0');
                }
                //if (hexData.Length > count)
                //{
                //    hexData = hexData.Substring(0, count);
                //}

                // 写入
                this._command.Append(hexData);

                byte[] cmdBytes = Encoding.ASCII.GetBytes(this._command.ToString());
                int cmdResult = this._socket.Send(cmdBytes);

                byte[] receiveBytes = new byte[1024];
                int receiveResult = this._socket.Receive(receiveBytes);
                this._receive = Encoding.ASCII.GetString(receiveBytes, 0, receiveResult);

                if (!this._receive.StartsWith("8300"))
                {
                    // TODO log ip port command receive
                    string j = JsonUtil.FromObject(this) + mm;
                    LogOut.Error(null, null, j);
                    return false;
                }

                return true;
            }
            catch (Exception ex)
            {
                // TODO log
                string j = JsonUtil.FromObject(this) + mm;
                LogOut.Error(null, ex, j);
                return false;
            }
            finally
            {
                if (!this._always)
                {
                    this.CloseSocket();
                }
            }
        }

        /// <summary>
        /// 写入PLC
        /// </summary>
        /// <param name="type"></param>
        /// <param name="begin"></param>
        /// <param name="hexData"></param>
        /// <returns></returns>
        public bool SetData(string type, int begin, string hexData)
        {
            int length = (int)(hexData.Length / 4.0 + 0.5);
            return this.SetData(type, begin, length, hexData);
        }

        /// <summary>
        /// 写入PLC
        /// </summary>
        /// <param name="type"></param>
        /// <param name="begin"></param>
        /// <returns></returns>
        public bool SetData(string type, int begin, byte[] data)
        {
            try
            {
                StringBuilder sb = new StringBuilder();
                foreach (byte item in data)
                {
                    sb.Append(item.ToString("X2"));
                }

                return SetData(type, begin, sb.ToString());
            }
            catch (Exception ex)
            {
                // TODO log
                LogOut.Error(null, ex);
                return false;
            }
            finally
            {
            }
        }

        /// <summary>
        /// 写入PLC
        /// </summary>
        /// <param name="type"></param>
        /// <param name="begin"></param>
        /// <param name="length"></param>
        /// <returns></returns>
        public bool SetData(string type, int begin, int length, byte[] data)
        {
            try
            {
                StringBuilder sb = new StringBuilder();
                foreach (byte item in data)
                {
                    sb.Append(item.ToString("X2"));
                }

                return SetData(type, begin, length, sb.ToString());
            }
            catch (Exception ex)
            {
                // TODO log
                LogOut.Error(null, ex);
                return false;
            }
            finally
            {
                if (!this._always)
                {
                    this.CloseSocket();
                }
            }
        }

        public void Do(string command)
        {
            this._command = null;
            this._receive = null;
            try
            {
                this._receive = "1";
                if (this._socket == null || !this._always)
                {
                    this._receive = "2";
                    this.CloseSocket();
                    this._receive = "3";
                    this._socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                    this._socket.Connect(IPAddress.Parse(this.IP), this.Port);
                    this._socket.SendTimeout = this.Timeout;
                    this._socket.ReceiveTimeout = this.Timeout;
                    this._receive = "4";
                }
                this._receive = "5";
                this._command = new StringBuilder(command);
                byte[] cmdBytes = Encoding.ASCII.GetBytes(command);
                int cmdResult = this._socket.Send(cmdBytes);
                this._receive = "6";

                byte[] receiveBytes = new byte[4096];
                int receiveResult = this._socket.Receive(receiveBytes);
                this._receive = Encoding.ASCII.GetString(receiveBytes, 0, receiveResult);
                this._receive = "7";
            }
            catch (Exception ex)
            {
                // TODO log
                string j = JsonUtil.FromObject(this);
                LogOut.Error(null, ex, j);
            }
            finally
            {
                if (!this._always)
                {
                    this.CloseSocket();
                }
            }
        }

        /// <summary>
        /// 获取字符串对应的2进制Ascii码（字符=>命令）
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static string GetHexAscii(string value)
        {
            if (string.IsNullOrEmpty(value))
            {
                return "";
            }
            byte[] bs = Encoding.ASCII.GetBytes(value);

            if (bs.Length > 1)
            {
                StringBuilder sb = new StringBuilder();
                foreach (byte item in bs)
                {
                    sb.Append(item.ToString("X2"));
                }
                return sb.ToString();
            }
            else
            {
                return bs[0].ToString("X2");
            }
        }

        /// <summary>
        /// 获取2进制Ascii码对应的字符串（命令=>字符）
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static string GetByHexAscii(string value)
        {
            if (string.IsNullOrWhiteSpace(value))
            {
                return null;
            }
            List<byte> list = new List<byte>();
            for (int i = 0; i < value.Length; i = i + 2)
            {
                list.Add(Convert.ToByte(value.Substring(i, 2), 16));
            }
            return Encoding.ASCII.GetString(list.ToArray());
        }

        /// <summary>
        /// 销毁
        /// </summary>
        public void Dispose()
        {
            try
            {
                this.CloseSocket();
            }
            catch
            {
            }
        }
    }
}