实例介绍
【实例简介】VB.NET、C#等PC高级语言与三菱FX5U通讯的源代码，采用TCP方式，支持整数、双整数、浮点数据； 无须安装，直接复制到项目工程即可，支持ASCII和二进制两种格式；
【实例截图】
【核心代码】
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.Runtime.InteropServices;
namespace TcpClient
{
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
int Handle1;
bool EntLink;
long ScanCount;
EntFxPlc.PlcClient PLC = new EntFxPlc.PlcClient();
[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)
{
this.CenterToScreen();
cmbReadMry.Items.Clear();
cmbReadMry.Items.Add("X");
cmbReadMry.Items.Add("Y");
cmbReadMry.Items.Add("M");
cmbReadMry.Items.Add("L");
cmbReadMry.Items.Add("F");
cmbReadMry.Items.Add("D");
cmbWriteMry.Items.Clear();
cmbWriteMry.Items.Add("X");
cmbWriteMry.Items.Add("Y");
cmbWriteMry.Items.Add("M");
cmbWriteMry.Items.Add("L");
cmbWriteMry.Items.Add("F");
cmbWriteMry.Items.Add("D");
cmbBitMry.Items.Clear();
cmbBitMry.Items.Add("X");
cmbBitMry.Items.Add("Y");
cmbBitMry.Items.Add("M");
cmbBitMry.Items.Add("L");
cmbBitMry.Items.Add("F");
cmbBitMry.Items.Add("D");
//
cmbReadType.Items.Clear();
cmbReadType.Items.Add("INT16");
cmbReadType.Items.Add("UINT16");
cmbReadType.Items.Add("DINT32");
cmbReadType.Items.Add("HEX32");
cmbReadType.Items.Add("REAL32");
cmbReadType.Items.Add("BIN16");
cmbWriteType.Items.Clear();
cmbWriteType.Items.Add("INT16");
cmbWriteType.Items.Add("UINT16");
cmbWriteType.Items.Add("DINT32");
cmbWriteType.Items.Add("HEX32");
cmbWriteType.Items.Add("REAL32");
cmbWriteType.Items.Add("BIN16");
cmbReadMry.SelectedIndex = 5;
cmbWriteMry.SelectedIndex = 5;
cmbBitMry.SelectedIndex = 2;
cmbReadType.SelectedIndex = 0;
cmbWriteType.SelectedIndex = 0;
lstRead.Items.Clear();
txtWrite.Text = "";
cmbCmdType.SelectedIndex = 0;
}
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), "DEMO", ref Handle1,Convert.ToUInt16 (2000),Convert .ToBoolean (cmbCmdType .SelectedIndex ));
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;
EntLink = false;
re = PLC.DeLink(Handle1);
txtReClose.Text = re.ToString();
}
public void butRead_Click(System.Object sender, System.EventArgs e)
{
short i = 0;
short re = 0;
object[] RD = null;
if (!EntLink)
{
MessageBox.Show("还未与PLC建立联接！");
return;
}
if (Conversion.Val(txtReadCnt.Text) < 1)
{
MessageBox.Show("CmdRead方法的Count参数必须大于0.");
return;
}
RD = new object[Convert.ToUInt16(txtReadCnt.Text)];
int var1 =cmbReadMry.SelectedIndex 1;
EntFxPlc.PlcClient.PlcMemory mry = (EntFxPlc.PlcClient.PlcMemory)var1;
var1 =cmbReadType.SelectedIndex 1;
EntFxPlc.PlcClient.DataType typ =(EntFxPlc.PlcClient.DataType)var1;
re = PLC.CmdRead(Handle1, mry, typ, Convert.ToUInt16(txtReadAdd.Text), Convert.ToUInt16(txtReadCnt.Text), ref RD);
txtReRead.Text = re.ToString();
lstRead.Items.Clear();
for (i = 0; i < RD.Length; i )
{
if (!ReferenceEquals(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;
short re = 0;
string[] temp = null;
object[] WD = null;
if (!EntLink)
{
MessageBox.Show("还未与PLC建立联接！");
return;
}
if (Conversion.Val(txtWriteCnt.Text) < 1)
{
MessageBox.Show("CmdRead方法的Count参数必须大于0.");
return;
}
WD = new object[Convert.ToUInt16(txtWriteCnt.Text)];
temp = txtWrite.Text.Split('\n');
for (i = 0; i < WD.Length; i )
{
if (i >= temp.Length)
{
WD[i] = 0;
}
else
{
WD[i] = temp[i].Trim();
}
}
int var1 = cmbWriteMry.SelectedIndex 1;
EntFxPlc.PlcClient.PlcMemory mry = (EntFxPlc.PlcClient.PlcMemory)var1;
var1 = cmbWriteType.SelectedIndex 1;
EntFxPlc.PlcClient.DataType typ = (EntFxPlc.PlcClient.DataType)var1;
re = PLC.CmdWrite(Handle1, mry, typ, Convert.ToUInt16(txtWriteAdd.Text), Convert.ToUInt16(txtWriteCnt.Text), ref WD);
txtReWrite.Text = re.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 ((short.Parse(txtReRead.Text) < 0) || (short.Parse(txtReWrite.Text) < 0))
{
butScan.Text = "Cycle R/W";
return;
}
else
{
ScanCount ;
txtScanCnt.Text = ScanCount.ToString();
txtScanPrd.Text = (System.Convert.ToInt32(timeGetTime()) - tim) "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;
int var1 = cmbBitMry.SelectedIndex 1;
EntFxPlc.PlcClient.PlcMemory mry = (EntFxPlc.PlcClient.PlcMemory)var1;
re = PLC.Bit_Test(Handle1, mry, Convert.ToUInt16(txtBitAdd.Text), ref rd);
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;
int var1 = cmbBitMry.SelectedIndex 1;
EntFxPlc.PlcClient.PlcMemory mry = (EntFxPlc.PlcClient.PlcMemory)var1;
re = PLC.Bit_Set(Handle1, mry, Convert.ToUInt16(txtBitAdd.Text));
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;
int var1 = cmbBitMry.SelectedIndex 1;
EntFxPlc.PlcClient.PlcMemory mry = (EntFxPlc.PlcClient.PlcMemory)var1;
re = PLC.Bit_Reset(Handle1, mry, Convert.ToUInt16(txtBitAdd.Text));
txtReBit.Text = re.ToString();
}
public void butReadString_Click(System.Object sender, System.EventArgs e)
{
if (!EntLink)
{
MessageBox.Show("还未与PLC建立联接！");
return;
}
string re = "";
re = PLC.CmdReadString(Handle1, EntFxPlc.PlcClient.PlcMemory.DR, Convert.ToUInt16(txtBuffAdd.Text), Convert.ToUInt16(txtBuffSize.Text));
txtReadString.Text = re;
}
public void butWriteString_Click(System.Object sender, System.EventArgs e)
{
if (!EntLink)
{
MessageBox.Show("还未与PLC建立联接！");
return;
}
short re = 0;
re = PLC.CmdWriteString(Handle1, EntFxPlc.PlcClient.PlcMemory.DR, Convert.ToUInt16(txtBuffAdd.Text), Convert.ToUInt16(txtBuffSize.Text), txtWriteString.Text);
txtReWriteString.Text = re.ToString();
}
}
}
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