PLC通信实例，可学习（DLL Testing for S7-1200/1500 EtherNet TCP）

using System.Collections.Generic;
using System;
using System.Linq;
using System.Drawing;
using System.Diagnostics;
using System.Data;
using System.Xml.Linq;
using Microsoft.VisualBasic;
using System.Collections;
using System.Windows.Forms;


using System.Net;
using System.Runtime.InteropServices;

namespace TCP_CLIENT
{
	public partial class Form1
	{
		public Form1()
		{
			InitializeComponent();
			

			if (defaultInstance == null)
				defaultInstance = this;
		}
		
#region Default Instance
		
		private static Form1 defaultInstance;
		

public static Form1 Default
		{
			get
			{
				if (defaultInstance == null)
				{
					defaultInstance = new Form1();
					defaultInstance.FormClosed  = new FormClosedEventHandler(defaultInstance_FormClosed);
				}
				
				return defaultInstance;
			}
			set
			{
				defaultInstance = value;
			}
		}
		
		static void defaultInstance_FormClosed(object sender, FormClosedEventArgs e)
		{
			defaultInstance = null;
		}
		
#endregion
		
		
		WinTcpS7_1K.PlcClient PLC = new WinTcpS7_1K.PlcClient();
		bool EntLink;
		long ScanCount;
		short ScanRet;
        Int32 PlcHand;

		[DllImport("winmm.dll", ExactSpelling=true, CharSet=CharSet.Ansi, SetLastError=true)]
		public static extern UInt32 timeGetTime();
		
		public void Form1_Load(System.Object sender, System.EventArgs e)
		{
			short i = 0;
			this.CenterToScreen();
			cmbReadMry.Items.Clear();
			cmbReadMry.Items.Add("I");
			cmbReadMry.Items.Add("Q");
			cmbReadMry.Items.Add("M");
			cmbReadMry.Items.Add("DB");
			cmbWriteMry.Items.Clear();
			cmbWriteMry.Items.Add("I");
			cmbWriteMry.Items.Add("Q");
			cmbWriteMry.Items.Add("M");
			cmbWriteMry.Items.Add("DB");
			cmbBitMry.Items.Clear();
			cmbBitMry.Items.Add("I");
			cmbBitMry.Items.Add("Q");
			cmbBitMry.Items.Add("M");
            cmbBitMry.Items.Add("DB");
			cmbReadType.Items.Clear();
			cmbReadType.Items.Add("W_INT16");
			cmbReadType.Items.Add("W_UINT16");
			cmbReadType.Items.Add("D_DINT32");
			cmbReadType.Items.Add("D_HEX32");
			cmbReadType.Items.Add("D_REAL32");
			cmbReadType.Items.Add("W_BIN16");
            cmbReadType.Items.Add("B_CHAR8");
            cmbReadType.Items.Add("B_BYTE8");
			cmbWriteType.Items.Clear();
			cmbWriteType.Items.Add("W_INT16");
			cmbWriteType.Items.Add("W_UINT16");
			cmbWriteType.Items.Add("D_DINT32");
			cmbWriteType.Items.Add("D_HEX32");
			cmbWriteType.Items.Add("D_REAL32");
			cmbWriteType.Items.Add("W_BIN16");
            cmbWriteType.Items.Add("B_CHAR8");
            cmbWriteType.Items.Add("B_BYTE8");
			
			for (i = 0; i <= 7; i  )
			{
				cmbBit.Items.Add("Bit"   System.Convert.ToString(i));
			}
			cmbReadMry.SelectedIndex = 2;
			cmbWriteMry.SelectedIndex = 2;
			cmbBitMry.SelectedIndex = 2;
			cmbBit.SelectedIndex = 0;
			cmbReadType.SelectedIndex = 0;
			cmbWriteType.SelectedIndex = 0;
			lstRead.Items.Clear();
			txtWrite.Text = "";
			
		}
		
		
		public void butLink_Click(System.Object sender, System.EventArgs e)
		{
			short re = 0;
			string restr = "";
            re = PLC.EntLink(txtLocalIP.Text.Trim(), Convert.ToUInt16(txtLocalPort.Text), txtRemoteIP.Text.Trim(), (Convert.ToUInt16(txtRemotePort.Text)), 0, 2, "DEMO", ref PlcHand);
			txtReLink.Text = re.ToString();
			if (re == 0)
			{
				EntLink = true;
				MessageBox.Show("PLC联接成功!");
			}
			else
			{
				EntLink = false;
				MessageBox.Show("PLC联接失败: "   restr);
			}
		}
		
		public void butClose_Click(System.Object sender, System.EventArgs e)
		{
			short re = 0;
			if (!EntLink)
			{
				MessageBox.Show("还未与PLC建立联接！");
				return;
			}
            re = PLC.DeLink(PlcHand);
			txtReClose.Text = re.ToString();
		}
		
		public void butRead_Click(System.Object sender, System.EventArgs e)
		{
			short i = 0;
			object[] RD = null;
			RD = new object[Convert.ToUInt16(txtReadCnt.Text)];
			if (!EntLink)
			{
				MessageBox.Show("还未与PLC建立联接！");
				return;
			}
			int var1 = cmbReadType.SelectedIndex   1;
            WinTcpS7_1K.PlcClient.DataType typ = (WinTcpS7_1K .PlcClient.DataType)var1;
			switch (cmbReadMry.SelectedIndex)
			{
				case 0:
                    ScanRet = PLC.CmdRead(PlcHand,WinTcpS7_1K.PlcClient.PlcMemory.DI, typ, Convert.ToUInt16(txtReadBlock.Text),  Convert.ToUInt16(txtReadAdd.Text), Convert.ToUInt16(txtReadCnt.Text), ref RD);
					break;
				case 1:
                    ScanRet = PLC.CmdRead(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DQ, typ, Convert.ToUInt16(txtReadBlock.Text), Convert.ToUInt16(txtReadAdd.Text), Convert.ToUInt16(txtReadCnt.Text), ref RD);
					break;
				case 2:
                    ScanRet = PLC.CmdRead(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.MR, typ, Convert.ToUInt16(txtReadBlock.Text), Convert.ToUInt16(txtReadAdd.Text), Convert.ToUInt16(txtReadCnt.Text), ref RD);
					break;
				case 3:
                    ScanRet = PLC.CmdRead(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DR, typ, Convert.ToUInt16(txtReadBlock.Text), Convert.ToUInt16(txtReadAdd.Text), Convert.ToUInt16(txtReadCnt.Text), ref RD);
					break;
			}
			txtReRead.Text = ScanRet.ToString();
			lstRead.Items.Clear();
			for (i = 0; i <= (RD.Length - 1); i  )
			{
				if (!(RD[i] == null))
				{
					lstRead.Items.Add(RD[i]);
				}
				else
				{
					lstRead.Items.Add("0");
				}
			}
			
		}
		
		
		public void butWrite_Click(System.Object sender, System.EventArgs e)
		{
			short i = 0;
			string[] temp = null;
			object[] WD = null;
			if (!EntLink)
			{
				MessageBox.Show("还未与PLC建立联接！");
				return;
			}
			WD = new object[Convert.ToUInt16(txtWriteCnt.Text)];
			temp = txtWrite.Text.Split('\n');
			for (i = 0; i <= (WD.Length - 1); i  )
			{
				if (i > (temp.Length - 1))
				{
					WD[i] = 0;
				}
				else
				{
					WD[i] = temp[i].Trim();
				}
			}
			int var1 = cmbWriteType.SelectedIndex   1;
            WinTcpS7_1K.PlcClient.DataType typ = (WinTcpS7_1K.PlcClient.DataType)var1;
			switch (cmbWriteMry.SelectedIndex)
			{
				case 0:
                    ScanRet = PLC.CmdWrite(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DI, typ, Convert.ToUInt16(txtWriteBlock.Text), Convert.ToUInt16(txtWriteAdd.Text), Convert.ToUInt16(txtWriteCnt.Text), ref WD);
					break;
				case 1:
                    ScanRet = PLC.CmdWrite(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DQ, typ, Convert.ToUInt16(txtWriteBlock.Text), Convert.ToUInt16(txtWriteAdd.Text), Convert.ToUInt16(txtWriteCnt.Text), ref WD);
					break;
				case 2:
                    ScanRet = PLC.CmdWrite(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.MR, typ, Convert.ToUInt16(txtWriteBlock.Text), Convert.ToUInt16(txtWriteAdd.Text), Convert.ToUInt16(txtWriteCnt.Text), ref WD);
					break;
				case 3:
                    ScanRet = PLC.CmdWrite(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DR, typ, Convert.ToUInt16(txtWriteBlock.Text), Convert.ToUInt16(txtWriteAdd.Text), Convert.ToUInt16(txtWriteCnt.Text), ref WD);
					break;
			}
			txtReWrite.Text = ScanRet.ToString();
		}
		
		public void butScan_Click(System.Object sender, System.EventArgs e)
		{
			if (!EntLink)
			{
				MessageBox.Show("还未与PLC建立联接！");
				return;
			}
			if (butScan.Text == "Cycle R/W")
			{
				ScanCount = 0;
				Timer1.Enabled = true;
				butScan.Text = "Stop R/W";
			}
			else
			{
				Timer1.Enabled = false;
				butScan.Text = "Cycle R/W";
			}
		}
		
		public void Timer1_Tick(System.Object sender, System.EventArgs e)
		{
            Timer1.Enabled = false;
            int tim = System.Convert.ToInt32(timeGetTime());
            if (!EntLink)
            {
                MessageBox.Show("还未与PLC建立联接！");
                return;
            }
            //
            butRead_Click(null, null);
            butWrite_Click(null, null);

            //
            if ((Convert.ToInt32(txtReRead.Text) < 0) || (Convert.ToInt32(txtReWrite.Text) < 0))
            {
                butScan.Text = "Cycle R/W";
                return;
            }
            else
            {
                ScanCount  ;
                txtScanCnt.Text = ScanCount.ToString();
                txtScanPrd.Text = (System.Convert.ToInt32(timeGetTime()) - tim).ToString()   "ms";
            }
            Timer1.Enabled = true;
		}
		
		
		public void butBitTest_Click(System.Object sender, System.EventArgs e)
		{
			if (!EntLink)
			{
				MessageBox.Show("还未与PLC建立联接！");
				return;
			}
			bool rd = false;
			short re = 0;
			switch (cmbBitMry.SelectedIndex)
			{
				case 0:
                    re = PLC.Bit_Test(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DI, Convert.ToUInt16(txtBitBlock.Text), Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex), ref rd);
					break;
				case 1:
                    re = PLC.Bit_Test(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DQ, Convert.ToUInt16(txtBitBlock.Text), Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex), ref rd);
					break;
				case 2:
                    re = PLC.Bit_Test(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.MR, Convert.ToUInt16(txtBitBlock.Text), Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex), ref rd);
					break;
                case 3:
                    re = PLC.Bit_Test(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DR, Convert.ToUInt16(txtBitBlock.Text), Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex), ref rd);
                    break;
			}
			txtBitTest.Text = rd.ToString();
			txtReBit.Text = re.ToString();
		}
		
		public void butBitSet_Click(System.Object sender, System.EventArgs e)
		{
			if (!EntLink)
			{
				MessageBox.Show("还未与PLC建立联接！");
				return;
			}
			short re = 0;
			switch (cmbBitMry.SelectedIndex)
			{
				case 0:
                    re = PLC.Bit_Set(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DI, Convert.ToUInt16(txtBitBlock.Text), Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
					break;
				case 1:
                    re = PLC.Bit_Set(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DQ, Convert.ToUInt16(txtBitBlock.Text), Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
					break;
				case 2:
                    re = PLC.Bit_Set(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.MR, Convert.ToUInt16(txtBitBlock.Text), Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
					break;
                case 3:
                    re = PLC.Bit_Set(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DR , Convert.ToUInt16(txtBitBlock.Text), Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
                    break;
			}
			txtReBit.Text = re.ToString();
		}
		
		public void butBitRst_Click(System.Object sender, System.EventArgs e)
		{
			if (!EntLink)
			{
				MessageBox.Show("还未与PLC建立联接！");
				return;
			}
			short re = 0;
			switch (cmbBitMry.SelectedIndex)
			{
				case 0:
                    re = PLC.Bit_Reset(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DI, Convert.ToUInt16(txtBitBlock.Text), Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
					break;
				case 1:
                    re = PLC.Bit_Reset(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DQ, Convert.ToUInt16(txtBitBlock.Text), Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
					break;
				case 2:
                    re = PLC.Bit_Reset(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.MR, Convert.ToUInt16(txtBitBlock.Text), Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
					break;
                case 3:
                    re = PLC.Bit_Reset(PlcHand, WinTcpS7_1K.PlcClient.PlcMemory.DR, Convert.ToUInt16(txtBitBlock.Text), Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
                    break;
			}
			txtReBit.Text = re.ToString();
		}
		
		
	}
	
}

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资源文件列表

TcpClient C#2010/bin/Release/TCP_CLIENT_C#2010.exe , 26112
TcpClient C#2010/bin/Release/TCP_CLIENT_C#2010.pdb , 38400
TcpClient C#2010/bin/Release/TCP_CLIENT_C#2010.vshost.exe , 11600
TcpClient C#2010/bin/Release/TCP_CLIENT_C#2010.vshost.exe.manifest , 490
TcpClient C#2010/bin/Release/TCP_CLIENT_VB2010.xml , 802
TcpClient C#2010/bin/Release/WinTcpS7_1K.dll , 72704
TcpClient C#2010/Form1.cs , 12188
TcpClient C#2010/Form1.Designer.cs , 40449
TcpClient C#2010/Form1.resx , 6008
TcpClient C#2010/My Project/Application.myapp , 510
TcpClient C#2010/My Project/Resources.resx , 5609
TcpClient C#2010/My Project/Settings.settings , 279
TcpClient C#2010/obj/x86/Debug/DesignTimeResolveAssemblyReferences.cache , 2152
TcpClient C#2010/obj/x86/Debug/DesignTimeResolveAssemblyReferencesInput.cache , 6371
TcpClient C#2010/obj/x86/Debug/GenerateResource.read.1.tlog , 248
TcpClient C#2010/obj/x86/Debug/GenerateResource.write.1.tlog , 634
TcpClient C#2010/obj/x86/Debug/TcpClient.csproj.FileListAbsolute.txt , 1407
TcpClient C#2010/obj/x86/Debug/TCP_CLIENT_C#2010.exe , 26112
TcpClient C#2010/obj/x86/Debug/TCP_CLIENT_C#2010.pdb , 36352
TcpClient C#2010/obj/x86/Debug/TCP_CLIENT_VB2010.Form1.resources , 180
TcpClient C#2010/obj/x86/Debug/TCP_CLIENT_VB2010.Properties.Resources.resources , 180
TcpClient C#2010/obj/x86/Debug/TempPE/Properties.Resources.Designer.cs.dll , 4608
TcpClient C#2010/obj/x86/Release/DesignTimeResolveAssemblyReferences.cache , 8662
TcpClient C#2010/obj/x86/Release/DesignTimeResolveAssemblyReferencesInput.cache , 6604
TcpClient C#2010/obj/x86/Release/GenerateResource.read.1.tlog , 312
TcpClient C#2010/obj/x86/Release/GenerateResource.write.1.tlog , 770
TcpClient C#2010/obj/x86/Release/TcpClient.csproj.FileListAbsolute.txt , 22258
TcpClient C#2010/obj/x86/Release/TcpClient.csproj.GenerateResource.Cache , 975
TcpClient C#2010/obj/x86/Release/TcpClient.csprojResolveAssemblyReference.cache , 9698
TcpClient C#2010/obj/x86/Release/TCP_CLIENT.Form1.resources , 180
TcpClient C#2010/obj/x86/Release/TCP_CLIENT_C#2010.exe , 26112
TcpClient C#2010/obj/x86/Release/TCP_CLIENT_C#2010.pdb , 38400
TcpClient C#2010/obj/x86/Release/TCP_CLIENT_CS2010.Properties.Resources.resources , 180
TcpClient C#2010/obj/x86/Release/TCP_CLIENT_VB2010.Form1.resources , 180
TcpClient C#2010/obj/x86/Release/TCP_CLIENT_VB2010.Properties.Resources.resources , 180
TcpClient C#2010/obj/x86/Release/TempPE/Properties.Resources.Designer.cs.dll , 4608
TcpClient C#2010/Properties/Application.Designer.cs , 1991
TcpClient C#2010/Properties/Application.myapp , 510
TcpClient C#2010/Properties/AssemblyInfo.cs , 1424
TcpClient C#2010/Properties/Resources.Designer.cs , 2856
TcpClient C#2010/Properties/Resources.resx , 5609
TcpClient C#2010/Properties/Settings.Designer.cs , 1089
TcpClient C#2010/Properties/Settings.settings , 279
TcpClient C#2010/TcpClient.csproj , 5032
TcpClient C#2010/TcpClient.sln , 859
TcpClient C#2010/TcpClient.suo , 30208
TcpClient C#2010/TCP_CLIENT_VB2010.xml , 802