实例介绍
【实例简介】C# OMRON FINS UDP通信
【实例截图】
【核心代码】
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Net; using System.Net.Sockets; using System.Threading; namespace WindowsFormsApplication2 { public partial class Form1 : Form { UdpClient udpClient; byte Registertype=0x82; IPAddress locateIp; IPEndPoint locatePoint; IPAddress remoteIp; IPEndPoint remotePoint; public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { txtLocateIP.Text = getIPAddress(); txtRemoteIP.Text = getIPAddress(); //禁止夸线程监视 Control.CheckForIllegalCrossThreadCalls = false;//这种方法不好,只是方便,不提倡 } private void btnServer_Click(object sender, EventArgs e) { if (udpClient != null) return; locateIp = IPAddress.Parse(txtLocateIP.Text); locatePoint = new IPEndPoint(locateIp, Convert.ToInt32(txtLocatePort.Text)); udpClient = new UdpClient(locatePoint); remoteIp = IPAddress.Parse(txtRemoteIP.Text); remotePoint = new IPEndPoint(remoteIp, Convert.ToInt32(txtRemotePort.Text)); //监听创建好后,就开始接收信息,并创建一个线程 Thread th = new Thread(Receive); th.IsBackground = true; th.Start(); } /// <summary> /// 接收线程方法 /// </summary> void Receive() { byte[] recBuffer; //远端IP IPEndPoint remotePoint = new IPEndPoint(IPAddress.Any, 0); while (true) { try { recBuffer = udpClient.Receive(ref remotePoint); if (cBoxHex.Checked) { rtxtRec.AppendText(StringtoHex(recBuffer) "\r\n"); } else { if (recBuffer != null) { byte[] Num = new byte[2] { recBuffer[recBuffer.Length-2], recBuffer[recBuffer.Length-1] }; string zas = StringtoHex(Num); Int32 xx = Convert.ToInt32(zas, 16); rtxtRec.AppendText(xx "\r\n"); } } } catch (Exception e) { MessageBox.Show(e.ToString()); } } } string StringtoHex(byte[] myBytes) { string result=null; foreach (byte b in myBytes) { string val = b.ToString("X"); result = (val.Length == 2 ? val : "0" val); } return result; } private void btnSend_Click(object sender, EventArgs e) { if (string.IsNullOrEmpty(rtxtSend.Text.Trim())) return; byte[] buffer = System.Text.Encoding.UTF8.GetBytes(rtxtSend.Text.Trim()); udpClient.Send(buffer, buffer.Length, remotePoint); } /// <summary> /// 获取本地IP的方法 /// </summary> /// <returns></returns> private string getIPAddress() { //获取本地所有IP地址 IPHostEntry ipe = Dns.GetHostEntry(Dns.GetHostName()); IPAddress[] ip = ipe.AddressList; for (int i = 0; i < ip.Length; i ) { if (ip[i].AddressFamily.ToString().Equals("InterNetwork")) { return ip[i].ToString(); } } return null; } private void btnwriter_Click(object sender, EventArgs e) { byte waddressL = Convert.ToByte((Convert.ToUInt16(wtxtaddress.Text) % 256).ToString()); byte waddressH= Convert.ToByte(((Convert.ToUInt16(wtxtaddress.Text) /256)%256).ToString()); byte wCountL = Convert.ToByte((Convert.ToUInt16(wtxtCount.Text) % 256).ToString()); byte wCountH = Convert.ToByte(((Convert.ToUInt16(wtxtCount.Text) / 256) % 256).ToString()); byte wdataL = Convert.ToByte((Convert.ToUInt16(wdata.Text) % 256).ToString()); byte wdataH = Convert.ToByte(((Convert.ToUInt16(wdata.Text) / 256) % 256).ToString()); IPAddress remoteIp = IPAddress.Parse(txtRemoteIP.Text); IPEndPoint remotePoint = new IPEndPoint(remoteIp, Convert.ToInt32(txtRemotePort.Text)); byte[] wbuffer = { 0x80, 0x00, 0x02, 0x00, remoteIp.GetAddressBytes()[3], 0x00, 0x00, locateIp.GetAddressBytes()[3], 0x00, 0x00, 0x01, 0x02, Registertype, waddressH, waddressL, 0x00, wCountH, wCountL, wdataH, wdataL }; udpClient.Send(wbuffer, wbuffer.Length, remotePoint); rtxtSend.Text = Convert.ToString(BitConverter.ToString(wbuffer, 0)); } private void cnbRegistertype_SelectedIndexChanged(object sender, EventArgs e) { switch (cnbRegistertype.Text) { case "DR": Registertype = 0x82; break; case "WR": Registertype = 0xB1; break; case "CIO": Registertype = 0xB0;break; case "ER": Registertype = 0xA0; break; case "TIM": Registertype = 0x89;break; case "CNT": Registertype = 0x89;break; default: Registertype = 0x82; break; } } private void btnread_Click(object sender, EventArgs e) { // 800002000100002800000101820068000001 byte RaddressL = Convert.ToByte((Convert.ToUInt16(Rtxtaddress.Text) % 256).ToString()); byte RaddressH = Convert.ToByte(((Convert.ToUInt16(Rtxtaddress.Text) / 256) % 256).ToString()); byte wCountL = Convert.ToByte((Convert.ToUInt16(RtxtCount.Text) % 256).ToString()); byte RCountH = Convert.ToByte(((Convert.ToUInt16(RtxtCount.Text) / 256) % 256).ToString()); // byte RdataL = Convert.ToByte((Convert.ToUInt16(Rdata.Text) % 256).ToString()); // byte RdataH = Convert.ToByte(((Convert.ToUInt16(Rdata.Text) / 256) % 256).ToString()); IPAddress remoteIp = IPAddress.Parse(txtRemoteIP.Text); IPEndPoint remotePoint = new IPEndPoint(remoteIp, Convert.ToInt32(txtRemotePort.Text)); byte[] Rbuffer = { 0x80, 0x00, 0x02, 0x00, remoteIp.GetAddressBytes()[3], 0x00, 0x00, locateIp.GetAddressBytes()[3], 0x00, 0x00, 0x01, 0x01, Registertype, RaddressH, RaddressL, 0x00, RCountH, wCountL }; udpClient.Send(Rbuffer, Rbuffer.Length, remotePoint); } } }
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