MelsecNetMultiAsync.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using HslCommunication.Core;
namespace HslCommunication.Profinet.Melsec
{
// internal sealed class MelsecNetMultiAsync : PlcNetBase
// {
// /// <summary>
// /// 实例化一个多PLC请求的对象
// /// </summary>
// /// <param name="networkNumber">要求所有网络号一致</param>
// /// <param name="networkStationNumber">要求所有站号一致</param>
// /// <param name="type">要求所有读取类型一致</param>
// /// <param name="address">要求所有起始地址一致</param>
// /// <param name="length">要求所有读取数据长度一致</param>
// /// <param name="timeout">连接PLC过程中的超时时间</param>
// /// <param name="readCycle">每次请求访问的间隔时间</param>
// /// <param name="allAddress">所有等待访问的PLC的IP地址</param>
// /// <param name="portMain">访问PLC时的主端口</param>
// /// <param name="portBackup">访问PLC时的备用端口</param>
// public MelsecNetMultiAsync(
// byte networkNumber,
// byte networkStationNumber,
// MelsecMcDataType type,
// ushort address,
// ushort length,
// int timeout,
// int readCycle,
// IPAddress[] allAddress,
// int portMain,
// int portBackup )
// {
// NetworkNumber = networkNumber;
// NetworkStationNumber = networkStationNumber;
// MelsecType = type;
// Address = address;
// Length = length;
// Timeout = timeout;
// ReadCycle = readCycle;
// //初始化数据对象
// EveryMachineLength = GetLengthFromPlcType( type, length );
// BytesResult = new byte[EveryMachineLength * allAddress.Length];
// PlcStates = new PlcStateOne[allAddress.Length];
// for (int i = 0; i < PlcStates.Length; i++)
// {
// PlcStates[i] = new PlcStateOne( )
// {
// Index = i,
// PlcDataHead = new byte[9],
// PlcDataContent = new byte[EveryMachineLength],
// LengthDataContent = 0,
// LengthDataHead = 0,
// IsConnect = false,
// PlcIpAddress = allAddress[i],
// PortMain = portMain,
// PortBackup = portBackup,
// };
// }
// //启动线程
// Thread thread = new Thread( new ThreadStart( ThreadDealWithTimeout ) )
// {
// IsBackground = true
// };
// thread.Start( );
// }
// /*********************************************************************************************
// *
// * 拷贝的数据方式仍然需要修改
// *
// *
// *********************************************************************************************/
// private MelsecMcDataType MelsecType = MelsecMcDataType.D;
// private ushort Address = 0;
// private ushort Length = 0;
// /// <summary>
// /// 超时时间
// /// </summary>
// private int Timeout = 600;
// /// <summary>
// /// 访问周期
// /// </summary>
// private int ReadCycle = 1000;
// /// <summary>
// /// 系统的连接状态，0未连接，1连接中
// /// </summary>
// private int ConnectStatus = 0;
// /// <summary>
// /// 用于存储结果的字节数组
// /// </summary>
// private byte[] BytesResult = null;
// /// <summary>
// /// 每台设备的长度
// /// </summary>
// private int EveryMachineLength = 0;
// /// <summary>
// /// 接收到所有的PLC数据时候触发
// /// </summary>
// public event IEDelegate<byte[]> OnReceivedData = null;
// private PlcStateOne[] PlcStates = null;
// /// <summary>
// /// 维护超时连接的线程方法
// /// </summary>
// private void ThreadDealWithTimeout()
// {
// LogNet?.WriteInfo( LogHeaderText, "waitting one second" );
// Thread.Sleep( 1000 );// 刚启动的时候进行休眠一小会
// LogNet?.WriteInfo( LogHeaderText, "begining recyle for reading plc" );
// while (true)
// {
// DateTime firstTime = DateTime.Now;// 连接时间
// TimerCallBack( );// 启动访问PLC
// while ((DateTime.Now - firstTime).TotalMilliseconds < Timeout)
// {
// // 超时时间等待
// }
// // 连接超时处理
// for (int i = 0; i < PlcStates.Length; i++)
// {
// if (!PlcStates[i].IsConnect) PlcStates[i].WorkSocket.Close( );
// }
// while ((DateTime.Now - firstTime).TotalMilliseconds < ReadCycle)
// {
// // 等待下次连接
// }
// }
// }
// private void TimerCallBack()
// {
// // 如果已经连接就返回，此处采用原子操作实现
// if (Interlocked.CompareExchange( ref ConnectStatus, 1, 0 ) == 0)
// {
// m_ac = new AsyncCoordinator( );
// for (int i = 0; i < PlcStates.Length; i++)
// {
// PlcStates[i].IsConnect = false;
// PlcStates[i].WorkSocket = new Socket( AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp );
// PlcStates[i].WorkSocket.BeginConnect( new IPEndPoint( PlcStates[i].PlcIpAddress, PlcStates[i].GetPort( ) ), new AsyncCallback( PlcConnectCallBack ), PlcStates[i] );
// PlcStates[i].LengthDataHead = 0;
// PlcStates[i].LengthDataContent = 0;
// m_ac.AboutToBegin( 1 );
// }
// // 启动检查连接情况
// m_ac.AllBegun( AllDown );
// }
// }
// private byte[] ConnectWrongHead = new byte[] { 0x00, 0x01 };
// private void PlcConnectCallBack( IAsyncResult ar )
// {
// if (ar.AsyncState is PlcStateOne stateone)
// {
// try
// {
// stateone.WorkSocket.EndConnect( ar );
// stateone.WorkSocket.BeginReceive(
// stateone.PlcDataHead,
// stateone.LengthDataHead,
// stateone.PlcDataHead.Length - stateone.LengthDataHead,
// SocketFlags.None,
// new AsyncCallback( PlcHeadReceiveCallBack ),
// stateone );
// stateone.IsConnect = true;// 指示访问成功
// }
// catch (Exception ex)
// {
// LogNet?.WriteException( ToString(), "connect failed", ex );
// // 访问失败
// stateone.WorkSocket.Close( );
// // 初始化数据
// Array.Copy( ConnectWrongHead, 0, BytesResult, stateone.Index * EveryMachineLength, 2 );
// // 更换端口
// stateone.ChangePort( );
// // 结束任务
// m_ac.JustEnded( );
// }
// }
// }
// private void PlcHeadReceiveCallBack( IAsyncResult ar )
// {
// if (ar.AsyncState is PlcStateOne stateone)
// {
// try
// {
// stateone.LengthDataHead += stateone.WorkSocket.EndReceive( ar );
// if (stateone.LengthDataHead < stateone.PlcDataHead.Length)
// {
// // 继续接收头格式
// stateone.WorkSocket.BeginReceive(
// stateone.PlcDataHead,
// stateone.LengthDataHead,
// stateone.PlcDataHead.Length - stateone.LengthDataHead,
// SocketFlags.None,
// new AsyncCallback( PlcHeadReceiveCallBack ),
// stateone );
// }
// else
// {
// // 计算接下来的接收长度，最少还有2个长度的字节数据
// int NeedReceived = BitConverter.ToUInt16( stateone.PlcDataHead, 7 );
// stateone.PlcDataContent = new byte[NeedReceived];
// // 接收内容
// stateone.WorkSocket.BeginReceive(
// stateone.PlcDataContent,
// 0,
// stateone.PlcDataContent.Length - stateone.LengthDataContent,
// SocketFlags.None,
// new AsyncCallback( PlcContentReceiveCallBack ),
// stateone );
// }
// }
// catch (Exception ex)
// {
// LogNet?.WriteException( LogHeaderText, "Head receive", ex );
// // 由于未知原因，数据接收失败
// stateone.WorkSocket.Close( );
// // 初始化数据
// Array.Copy( ConnectWrongHead, 0, BytesResult, stateone.Index * EveryMachineLength, 2 );
// // 结束任务
// m_ac.JustEnded( );
// }
// }
// }
// private void PlcContentReceiveCallBack( IAsyncResult ar )
// {
// if (ar.AsyncState is PlcStateOne stateone)
// {
// try
// {
// stateone.LengthDataContent += stateone.WorkSocket.EndReceive( ar );
// if (stateone.LengthDataHead < stateone.PlcDataHead.Length)
// {
// // 继续接内容格式
// stateone.WorkSocket.BeginReceive(
// stateone.PlcDataContent,
// stateone.LengthDataContent,
// stateone.PlcDataContent.Length - stateone.LengthDataContent,
// SocketFlags.None,
// new AsyncCallback( PlcContentReceiveCallBack ),
// stateone );
// }
// else
// {
// // 所有内容接收完成
// int error = BitConverter.ToUInt16( stateone.PlcDataContent, 0 );
// if (error > 0)
// {
// Array.Copy( ConnectWrongHead, 0, BytesResult, stateone.Index * EveryMachineLength, 2 );
// }
// else
// {
// Array.Copy( stateone.PlcDataContent, 0, BytesResult, stateone.Index * EveryMachineLength, stateone.PlcDataContent.Length );
// }
// // 关闭连接
// stateone.WorkSocket.Close( );
// // 结束任务
// m_ac.JustEnded( );
// }
// }
// catch (Exception ex)
// {
// LogNet?.WriteException( LogHeaderText, "Data receive", ex );
// // 由于未知原因，数据接收失败
// stateone.WorkSocket.Close( );
// // 初始化数据
// Array.Copy( ConnectWrongHead, 0, BytesResult, stateone.Index * EveryMachineLength, 2 );
// // 结束任务
// m_ac.JustEnded( );
// }
// }
// }
// private void AllDown( CoordinationStatus status )
// {
// // 此处没有取消和超时状态，直接完成
// if (status == CoordinationStatus.AllDone)
// {
// Interlocked.Exchange( ref ConnectStatus, 0 );
// LogNet?.WriteDebug( LogHeaderText, "All bytes read complete." );
// OnReceivedData?.Invoke( BytesResult.ToArray( ) );
// }
// }
// private AsyncCoordinator m_ac = new AsyncCoordinator( );
// }
}