倍福TwinCAT3上位机与PLC通信测试(ADS通信) 包含C#和C++代码
倍福TwinCAT3上位机与PLC通信测试(ADS通信) 包含C#和C++代码
本次测试需要环境：
VS2013，TwinCAT3（本人版本TC31-Full-Setup.3.1.4018.16）
代码：C#代码，PLC程序代码，C++代码（官方提供）
测试部分：
测试包含：bool类型，int类型，long类型，real类型，lreal类型，string类型，数组，以及结构体 部分测试（这里没有结构体嵌套）
PLC程序Main程序
基本类型部分
代码：
PROGRAM MAIN
VAR
BoolTest :BOOL;
IntTest:INT;
LongTest:DINT;
SingleTest:REAL;
DoubleTest:LREAL;
StringTest:STRING;
readstringlen:INT;
plcstruc :plcstructure; plcarraytest:ARRAY[1..5] OF INT; END_VAR
结构体程序部分
代码：
TYPE plcstructure :
STRUCT
plcs1:BOOL;
dummy1:BOOL;
dummy2:BOOL;
dummy3:BOOL; plcs2:INT;
dummy4:INT; plcs3:DINT;
plcs4:REAL;
plcs5:LREAL; END_STRUCT
END_TYPE
C#程序主界面
主界面代码包含按钮事件等
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
//引用Twincat.ads和Sustem.IO
using TwinCAT.Ads;
using System.IO; namespace writeread
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
} //定义所需变量 private bool writebool =false;
private bool readbool=false ; private short writeint = ;
private short readint = ; private int writelong = ;
private int readlong = ; private float writereal = ;
private float readreal = ; private double writelreal = ;
private double readlreal = ; private string writestring = "";
private string readstring = "";
private int stringlen = ; //定义结构体类型
public struct structtype
{
public bool s1;
public bool dummy1;
public bool dummy2;
public bool dummy3;
public short s2 ;
public short dummy4; public int s3 ;
public float s4;
public double s5 ;
}
//实例化结构体
private structtype structtest =new structtype (); //定义数组，含有五个元素
private short[] arraytest = new short[]; //定义句柄变量
private int hvar = new int();
//通讯数据定义
private TcAdsClient tcclient;//定义通讯协议 private void Form1_Load(object sender, EventArgs e)
{
//通讯协议
tcclient = new TcAdsClient();
//tcclient.Connect("控制器NetID",851)
tcclient.Connect();
}
//writebool
private void button1_Click(object sender, EventArgs e)
{
if (writebool == true)
{
writebool = false;
}
else
{
writebool = true;
} try
{
hvar = tcclient.CreateVariableHandle("MAIN.BoolTest");
tcclient.WriteAny(hvar ,writebool );
tcclient.DeleteVariableHandle(hvar);
}
catch (Exception err)
{ } }
//readbool
private void button2_Click(object sender, EventArgs e)
{
try
{
hvar = tcclient.CreateVariableHandle("MAIN.BoolTest");
readbool = (bool)(tcclient.ReadAny(hvar, typeof(bool)));
tcclient.DeleteVariableHandle(hvar);
label1.Text = readbool.ToString();
}
catch (Exception err)
{ } }
//writeINt plc int 对应c# short private void button4_Click(object sender, EventArgs e)
{ writeint =short.Parse (textBox2 .Text ); try
{
hvar = tcclient.CreateVariableHandle("MAIN.IntTest");
tcclient.WriteAny(hvar, writeint);
tcclient.DeleteVariableHandle(hvar);
}
catch (Exception err)
{ }
}
//readint
private void button3_Click(object sender, EventArgs e)
{
try
{
hvar = tcclient.CreateVariableHandle("MAIN.IntTest"); readint = (short)(tcclient.ReadAny(hvar, typeof(short)));
tcclient.DeleteVariableHandle(hvar);
label2.Text = readint.ToString();
} catch (Exception err)
{ } }
//writelong
private void button6_Click(object sender, EventArgs e)
{
writelong = int.Parse(textBox3.Text); try
{
hvar = tcclient.CreateVariableHandle("MAIN.LongTest");
tcclient.WriteAny(hvar, writelong);
tcclient.DeleteVariableHandle(hvar);
}
catch (Exception err)
{ }
}
//readlong
private void button5_Click(object sender, EventArgs e)
{
try
{
hvar = tcclient.CreateVariableHandle("MAIN.LongTest");
readlong = (Int32)(tcclient.ReadAny(hvar , typeof(Int32)));
tcclient.DeleteVariableHandle(hvar);
label3.Text = readlong.ToString();
} catch (Exception err)
{ } }
//writereal
private void button8_Click(object sender, EventArgs e)
{
writereal = Single.Parse(textBox4.Text); try
{
hvar = tcclient.CreateVariableHandle("MAIN.SingleTest");
tcclient.WriteAny(hvar , writereal);
tcclient.DeleteVariableHandle(hvar);
}
catch (Exception err)
{ }
}
//readreal
private void button7_Click(object sender, EventArgs e)
{
try
{
hvar = tcclient.CreateVariableHandle("MAIN.SingleTest");
readreal = (float)(tcclient.ReadAny(hvar , typeof(float)));
tcclient.DeleteVariableHandle(hvar);
label4.Text = readreal.ToString();
} catch (Exception err)
{ } }
//writelreal
private void button10_Click(object sender, EventArgs e)
{
writelreal = double.Parse(textBox5.Text); try
{
hvar = tcclient.CreateVariableHandle("MAIN.DoubleTest");
tcclient.WriteAny(hvar, writelreal);
tcclient.DeleteVariableHandle(hvar);
}
catch (Exception err)
{ }
}
//readlreal
private void button9_Click(object sender, EventArgs e)
{
try
{
hvar = tcclient.CreateVariableHandle("MAIN.DoubleTest");
readlreal = (double)(tcclient.ReadAny(hvar , typeof(double)));
tcclient.DeleteVariableHandle(hvar);
label5.Text = readlreal.ToString();
} catch (Exception err)
{ } }
//writestring 按照ASCII码进行读写
private void button12_Click(object sender, EventArgs e)
{
writestring = textBox6.Text;
stringlen = writestring.Length; try
{
hvar = tcclient.CreateVariableHandle("MAIN.StringTest");
tcclient.WriteAny(hvar, writestring, new int[] { });
tcclient.DeleteVariableHandle(hvar);
}
catch (Exception err)
{ }
}
//readstring
private void button11_Click(object sender, EventArgs e)
{
try
{
hvar = tcclient.CreateVariableHandle("MAIN.StringTest");
readstring = tcclient.ReadAny(hvar, typeof(string), new int[] { }).ToString();
tcclient.DeleteVariableHandle(hvar);
label6.Text = readstring;
} catch (Exception err)
{ }
}
//writestruct
private void button13_Click(object sender, EventArgs e)
{
if (structtest.s1 == true)
{
structtest.s1 = false;
}
else
{
structtest.s1 = true;
}
// structtest.s1 = bool.Parse(textBox7.Text);
structtest.s2 = short.Parse(textBox8.Text);
structtest.s3 = int.Parse(textBox9.Text);
structtest.s4 = float.Parse(textBox10.Text);
structtest.s5 = double.Parse(textBox11.Text); try
{
hvar = tcclient.CreateVariableHandle("MAIN.plcstruc");
}
catch (Exception err)
{
MessageBox.Show("get hvar error");
}
AdsStream datastream = new AdsStream(); //4+4+4+4+8=24
BinaryWriter binwrite = new BinaryWriter(datastream);
datastream.Position = ; try
{
binwrite.Write(structtest.s1);
binwrite.Write(structtest.dummy1 );
binwrite.Write(structtest.dummy2);
binwrite.Write(structtest.dummy3);
binwrite.Write(structtest.s2);
binwrite.Write(structtest.dummy4);
binwrite.Write(structtest.s3);
binwrite.Write(structtest.s4);
binwrite.Write(structtest.s5); tcclient.Write(hvar, datastream); structtest.s1 = false;
structtest.s2 = ;
structtest.s3 = ;
structtest.s4 = ;
structtest.s5 = ; } catch (Exception err)
{
MessageBox.Show("write value error");
}
try
{
tcclient.DeleteVariableHandle(hvar);
}
catch (Exception err)
{
MessageBox.Show(" write delect hvar error");
}
}
//readstruct
private void button14_Click(object sender, EventArgs e)
{
try
{
hvar = tcclient.CreateVariableHandle("MAIN.plcstruc");
}
catch (Exception err)
{
MessageBox.Show("get hvar error");
}
AdsStream datastream = new AdsStream();//4+4+4+4+8=24
BinaryReader binread = new BinaryReader(datastream);
datastream.Position = ; try
{
tcclient.Read(hvar, datastream); structtest.s1 = binread.ReadBoolean();
structtest.dummy1 = binread.ReadBoolean();
structtest.dummy2 = binread.ReadBoolean();
structtest.dummy3 = binread.ReadBoolean();
structtest.s2 = binread.ReadInt16();
structtest.dummy4 = binread.ReadInt16();
structtest.s3 = binread.ReadInt32();
structtest.s4 = binread.ReadSingle();
structtest.s5 = binread.ReadDouble(); label7.Text = structtest.s1.ToString();
label8.Text = structtest.s2.ToString();
label9.Text = structtest.s3.ToString();
label10.Text = structtest.s4.ToString();
label11.Text = structtest.s5.ToString();
} catch (Exception err)
{
MessageBox.Show("read value error");
}
try
{
tcclient.DeleteVariableHandle(hvar);
}
catch (Exception err)
{
MessageBox.Show("read delect hvar error");
} }
//writearray
private void button15_Click(object sender, EventArgs e)
{
arraytest[] = short.Parse(textBox12.Text);
arraytest[] = short.Parse(textBox13.Text);
arraytest[] = short.Parse(textBox14.Text);
arraytest[] = short.Parse(textBox15.Text);
arraytest[] = short.Parse(textBox16.Text); try
{
hvar = tcclient.CreateVariableHandle("MAIN.plcarraytest");
tcclient.WriteAny(hvar , arraytest);
tcclient.DeleteVariableHandle(hvar);
for (int i = ; i < ; i++)
{
arraytest[i] = ;
}
}
catch (Exception err)
{ } }
//readarray
private void button16_Click(object sender, EventArgs e)
{
try
{
hvar = tcclient.CreateVariableHandle("MAIN.plcarraytest");
arraytest = (short[])(tcclient.ReadAny(hvar , typeof(short[]), new int[] { }));
tcclient.DeleteVariableHandle(hvar); label12.Text = arraytest[].ToString();
label13.Text = arraytest[].ToString();
label14.Text = arraytest[].ToString();
label15.Text = arraytest[].ToString();
label16.Text = arraytest[].ToString();
}
catch (Exception err)
{ } } private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if(tcclient !=null)
tcclient.Dispose();
}
}
}
C++程序代码项目（注意红色框里面的路径是TwinCAT的安装路径）
测试结果：
上位机：
PLC程序：
PLC程序运行动图：
测试完毕！
工程源文件下载地址
小伙伴们直接去这里下载：
https://files.cnblogs.com/files/JiYF/%E5%80%8D%E7%A6%8FTwinCAT3%E4%B8%8A%E4%BD%8D%E6%9C%BA%E4%B8%8EPLC%E9%80%9A%E4%BF%A1%E6%B5%8B%E8%AF%95(ADS%E9%80%9A%E4%BF%A1)%E4%BE%8B%E5%AD%90%E4%BB%A3%E7%A0%81.rar
注意事项：
string类型如果没有限定大小，默认是80个字符，在C#这里需要加一个字符为结束符也就是限定为81个字符
例如：
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