基本信息
源码名称：C# PLC通讯示例源码(hostlink)
源码大小：0.78M
文件格式：.rar
开发语言：C#
更新时间：2018-07-23
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源码介绍
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 ComTest
{
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
HostLink.PlcCom PLC = new HostLink.PlcCom();
HostLink.PlcCom.PlcMemory CIO = HostLink.PlcCom.PlcMemory.CIO;
HostLink.PlcCom.PlcMemory LR = HostLink.PlcCom.PlcMemory.LR;
HostLink.PlcCom.PlcMemory DR = HostLink.PlcCom.PlcMemory.DR;
HostLink.PlcCom.PlcMemory HR = HostLink.PlcCom.PlcMemory.HR;
bool EntLink;
long ScanCount;
short ScanRet;
bool ScanRun;
[DllImport("winmm.dll", ExactSpelling=true, CharSet=CharSet.Ansi, SetLastError=true)]
public static extern long timeGetTime();
public void Form1_Load(System.Object sender, System.EventArgs e)
{
short i = 0;
this.CenterToScreen();
cmbReadMry.Items.Add("CIO");
cmbReadMry.Items.Add("LR");
cmbReadMry.Items.Add("DR");
cmbReadMry.Items.Add("HR");
cmbWriteMry.Items.Add("CIO");
cmbWriteMry.Items.Add("LR");
cmbWriteMry.Items.Add("DR");
cmbWriteMry.Items.Add("HR");
cmbBitMry.Items.Add("CIO");
cmbBitMry.Items.Add("LR");
cmbBitMry.Items.Add("DR");
cmbBitMry.Items.Add("HR");
for (i = 0; i <= 15; i )
{
cmbBit.Items.Add("Bit" System.Convert.ToString(i));
}
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");
cmbReadType.Items.Add("BCD16");
cmbReadType.Items.Add("BCD32");
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");
cmbWriteType.Items.Add("BCD16");
cmbWriteType.Items.Add("BCD32");
cmbReadMry.SelectedIndex = 2;
cmbWriteMry.SelectedIndex = 2;
cmbBitMry.SelectedIndex = 0;
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.ComLink(Convert.ToUInt16(txtStation.Text), Convert.ToUInt16(txtPort.Text), Convert.ToUInt32(txtRate.Text), 7, 2, HostLink.PlcCom.ParityType.Even, Convert.ToUInt16(txtDelay.Text), "DEMO");
txtReLink.Text = re.ToString();
if (re == 0)
{
EntLink = true;
MessageBox.Show("PLC联接成功: " restr);
}
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();
txtReClose.Text = re.ToString();
}
public void butRead_Click(System.Object sender, System.EventArgs e)
{
short i = 0;
object[] RD = null;
RD = new object[Convert.ToInt16(txtReadCnt.Text)];
if (!EntLink)
{
MessageBox.Show("还未与PLC建立联接！");
return;
}
int var1 = cmbReadType.SelectedIndex 1;
HostLink.PlcCom.DataType typ = (HostLink.PlcCom.DataType)var1;
switch (cmbReadMry.SelectedIndex)
{
case 0:
ScanRet = PLC.CmdRead(Convert.ToUInt16(txtStation.Text), CIO, typ, Convert.ToUInt16(txtReadAdd.Text), Convert.ToUInt16(txtReadCnt.Text), ref RD);
break;
case 1:
ScanRet = PLC.CmdRead(Convert.ToUInt16(txtStation.Text), LR, typ, Convert.ToUInt16(txtReadAdd.Text), Convert.ToUInt16(txtReadCnt.Text), ref RD);
break;
case 2:
ScanRet = PLC.CmdRead(Convert.ToUInt16(txtStation.Text), DR, typ, Convert.ToUInt16(txtReadAdd.Text), Convert.ToUInt16(txtReadCnt.Text), ref RD);
break;
case 3:
ScanRet = PLC.CmdRead(Convert.ToUInt16(txtStation.Text), HR, typ, 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;
HostLink.PlcCom.DataType typ =(HostLink.PlcCom.DataType) var1;
switch (cmbWriteMry.SelectedIndex)
{
case 0:
ScanRet = PLC.CmdWrite(Convert.ToUInt16(txtStation.Text), CIO, typ, Convert.ToUInt16(txtWriteAdd.Text), Convert.ToUInt16(txtWriteCnt.Text), ref WD);
break;
case 1:
ScanRet = PLC.CmdWrite(Convert.ToUInt16(txtStation.Text), LR, typ, Convert.ToUInt16(txtWriteAdd.Text), Convert.ToUInt16(txtWriteCnt.Text), ref WD);
break;
case 2:
ScanRet = PLC.CmdWrite(Convert.ToUInt16(txtStation.Text), DR, typ, Convert.ToUInt16(txtWriteAdd.Text), Convert.ToUInt16(txtWriteCnt.Text), ref WD);
break;
case 3:
ScanRet = PLC.CmdWrite(Convert.ToUInt16(txtStation.Text), HR, typ, 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;
ScanRun = true;
Timer1.Enabled = true;
butScan.Text = "Stop R/W";
}
else
{
ScanRun = false;
Timer1.Enabled = false;
butScan.Text = "Cycle R/W";
}
}
public void Timer1_Tick(System.Object sender, System.EventArgs e)
{
Timer1.Enabled = false;
if (!ScanRun)
{
butScan_Click(null, null);
return;
}
int tim = System.Convert.ToInt32(timeGetTime());
if (!EntLink)
{
MessageBox.Show("还未与PLC建立联接！");
return;
}
//
butRead_Click(null, null);
if (ScanRet < 0)
{
ScanRun = false;
return;
}
butWrite_Click(null, null);
if (ScanRet < 0)
{
ScanRun = false;
return;
}
//
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;
switch (cmbBitMry.SelectedIndex)
{
case 0:
re = PLC.Bit_Test(Convert.ToUInt16(txtStation.Text), CIO, Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex), ref rd);
break;
case 1:
re = PLC.Bit_Test(Convert.ToUInt16(txtStation.Text), LR, Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex), ref rd);
break;
case 2:
re = PLC.Bit_Test(Convert.ToUInt16(txtStation.Text), DR, Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex), ref rd);
break;
case 3:
re = PLC.Bit_Test(Convert.ToUInt16(txtStation.Text), HR, Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex), ref rd);
break;
}
txtBitTest.Text = System.Convert.ToString(rd);
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(Convert.ToUInt16(txtStation.Text), CIO, Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
break;
case 1:
re = PLC.Bit_Set(Convert.ToUInt16(txtStation.Text), LR, Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
break;
case 2:
re = PLC.Bit_Set(Convert.ToUInt16(txtStation.Text), DR, Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
break;
case 3:
re = PLC.Bit_Set(Convert.ToUInt16(txtStation.Text), HR, 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(Convert.ToUInt16(txtStation.Text), CIO, Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
break;
case 1:
re = PLC.Bit_Reset(Convert.ToUInt16(txtStation.Text), LR, Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
break;
case 2:
re = PLC.Bit_Reset(Convert.ToUInt16(txtStation.Text), DR, Convert.ToUInt16(txtBitAdd.Text), Convert.ToUInt16(cmbBit.SelectedIndex));
break;
case 3:
re = PLC.Bit_Reset(Convert.ToUInt16(txtStation.Text), HR, Convert.ToUInt16(txtBitAdd.Text),Convert.ToUInt16( cmbBit.SelectedIndex));
break;
}
txtReBit.Text = re.ToString();
}
}
}