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（）;
????????}
???????
????????//定義所需變量

????????private?bool??writebool?=false;
????????private?bool??readbool=false?;

????????private?short??writeint?=?0;
????????private?short??readint?=?0;

????????private?int?writelong?=?0;
????????private?int?readlong?=?0;

????????private?float?writereal?=?0;
????????private?float?readreal?=?0;

????????private?double?writelreal?=?0;
????????private?double?readlreal?=?0;
????????
????????private?string?writestring?=?““;
????????private?string?readstring?=?““;
????????private?int??stringlen?=?0;

????????//定義結(jié)構(gòu)體類型
????????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?;
????????}
????????//實(shí)例化結(jié)構(gòu)體
????????private??structtype?structtest?=new?structtype?（）;

????????//定義數(shù)組，含有五個(gè)元素
????????private?short[]?arraytest?=?new?short[5];

????????//定義句柄變量
????????private?int?hvar?=?new?int（）;
????????//通訊數(shù)據(jù)定義
????????private?TcAdsClient?tcclient;//定義通訊協(xié)議



????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{
????????????//通訊協(xié)議
????????????tcclient?=?new?TcAdsClient（）;
????????????//tcclient.Connect（“控制器NetID“851）
????????????tcclient.Connect（851）;
????????}
????????//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?